Abstract

The invention relates to a multi-layer, preferably co-extruded, plastic film with improved modulus properties, which is suitable, in particular, for producing three-dimensionally shaped articles.

IPC Classes  ?

• B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
• A61C 5/00 - Filling or capping teeth
• A61C 13/00 - Dental prosthesesMaking same
• B29C 48/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor
• B29C 48/08 - Flat, e.g. panels flexible, e.g. films
• B29C 48/21 - Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
• B29C 48/30 - Extrusion nozzles or dies
• B29C 48/34 - Cross-head annular extrusion nozzles, i.e. for simultaneously receiving moulding material and the preform to be coated
• B29C 48/625 - Screws characterised by the ratio of the threaded length of the screw to its outside diameter [L/D ratio]
• B29C 48/92 - Measuring, controlling or regulating
• B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters
• B32B 27/40 - Layered products essentially comprising synthetic resin comprising polyurethanes
• C08J 7/04 - Coating
• C08L 75/08 - Polyurethanes from polyethers

Abstract

The invention relates to a multi-layer, preferably co-extruded, plastic film with improved modulus properties, which is suitable, in particular, for producing three-dimensionally shaped articles.

IPC Classes  ?

• B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
• A61C 5/00 - Filling or capping teeth
• A61C 13/00 - Dental prosthesesMaking same
• B29C 48/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor
• B29C 48/08 - Flat, e.g. panels flexible, e.g. films
• B29C 48/21 - Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
• B29C 48/625 - Screws characterised by the ratio of the threaded length of the screw to its outside diameter [L/D ratio]
• B29C 48/92 - Measuring, controlling or regulating
• B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters
• B32B 27/40 - Layered products essentially comprising synthetic resin comprising polyurethanes
• C08J 7/04 - Coating
• C08L 75/08 - Polyurethanes from polyethers
• B29C 48/30 - Extrusion nozzles or dies
• B29C 48/34 - Cross-head annular extrusion nozzles, i.e. for simultaneously receiving moulding material and the preform to be coated

Abstract

The invention relates to a method and an electrolysis device for the production of chlorine, carbon monoxide and optionally hydrogen via the electrochemical conversion of carbon dioxide and alkali chloride solution, wherein the carbon dioxide from a carbon dioxide gas source (55) is electrochemically reduced at a gas diffusion electrode, designed as a cathode (11), in an aqueous alkali-chloride-containing solution as the catholyte (17), and chlorine is simultaneously anodically generated from an aqueous alkali-chloride-containing solution as the anolyte (15a).

IPC Classes  ?

• C25B 1/23 - Carbon monoxide or syngas
• C25B 1/02 - Hydrogen or oxygen
• C25B 1/26 - ChlorineCompounds thereof
• C25B 11/032 - Gas diffusion electrodes
• C25B 11/081 - Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalysts material consisting of a single catalytic element or catalytic compound the element being a noble metal
• C25B 15/08 - Supplying or removing reactants or electrolytesRegeneration of electrolytes

Abstract

The invention relates to a multi-layer, preferably co-extruded, plastic film with improved modulus properties, which is suitable, in particular, for producing three-dimensionally shaped articles.

IPC Classes  ?

• B32B 27/40 - Layered products essentially comprising synthetic resin comprising polyurethanes
• A61C 5/00 - Filling or capping teeth
• A61C 13/00 - Dental prosthesesMaking same
• B29C 48/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor
• B29C 48/08 - Flat, e.g. panels flexible, e.g. films
• B29C 48/21 - Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
• B29C 48/625 - Screws characterised by the ratio of the threaded length of the screw to its outside diameter [L/D ratio]
• B29C 48/92 - Measuring, controlling or regulating
• B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
• B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters
• C08J 7/04 - Coating
• C08L 75/08 - Polyurethanes from polyethers
• B29C 48/30 - Extrusion nozzles or dies
• B29C 48/34 - Cross-head annular extrusion nozzles, i.e. for simultaneously receiving moulding material and the preform to be coated

Abstract

The invention relates to a method for ascertaining a product composition for a mixed chemical product, a series of feature values, which numerically describe feature values in each case of a descriptor of the particular mixed product, being provided, for each first product composition of a plurality of first product compositions, in the case of a plurality of first product compositions for a particular mixed chemical product, each first product composition being characterised by a numerical product distribution for describing the proportions of components of the first product composition, the series of feature values for each mixed product being mapped by first bijective mapping onto a series of mapped feature values, a series of test feature values, which numerically describe in each case a behaviour property of the particular mixed product, being provided for a plurality of second product compositions for a particular mixed chemical product, the series of test feature values for each mixed product being mapped by second bijective mapping onto a series of mapped test feature values, at least the first or the second mapping including a modification, each series of mapped test feature values of a second product composition being assigned to a series of modified feature values of a first product composition, a correlation matrix being ascertained by multivariate analysis of the associated series, a target requirement profile being predefined for describing at last one behaviour property of a target mixed product and a target descriptor profile for describing descriptors of a target product composition being determined on the basis of the target requirement profile and the correlation matrix.

IPC Classes  ?

• G16C 20/30 - Prediction of properties of chemical compounds, compositions or mixtures
• C08G 18/75 - Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
• C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain
• C08G 18/62 - Polymers of compounds having carbon-to-carbon double bonds
• C08G 18/40 - High-molecular-weight compounds
• C08G 18/32 - Polyhydroxy compoundsPolyaminesHydroxy amines
• C08G 18/66 - Compounds of groups , , or
• C08G 18/65 - Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
• G16C 20/70 - Machine learning, data mining or chemometrics

Abstract

The invention relates to a catalyst component for isocyanate modification, comprising at least one cyclic ammonium salt having a cation of the formula I wherein Y is a linear or branched C2-C20 segment which is substituted by a hydroxyl group in the 2 position to the charge-bearing nitrogen atom and optionally bears further substituents and is optionally interrupted by heteroatoms from the group of oxygen, sulfur, nitrogen and aromatic rings and optionally has further rings, and the N-bonded substituents R1 and R2 are either independently identical or different, substituted or unsubstituted, optionally branched, aliphatic C1-C20 radicals, aromatic C6-C20 radical or araliphatic C7-C20 radicals or the N-bonded substituents R1 and R2 form a ring segment X with one another for which the same or different definition given above for Y is applicable, with the proviso that X has a hydroxyl group as substituent in the 2 position to the charge-bearing nitrogen atom or does not have a hydroxyl group as substituent in the 2 position to the charge-bearing nitrogen atom.

IPC Classes  ?

• C08G 18/20 - Heterocyclic aminesSalts thereof
• C08G 18/08 - Processes

Abstract

The invention relates to a thermoplastic moulding composition comprising A) at least one thermoplastic polyurethane polymer obtainable by reacting at least the following constituent components: I) one or more aliphatic diisocyanates having a molecular weight of between 140 g/mol to 170 g/mol and II) one or more aliphatic diols having a molecular weight of between 62 g/mol to 120 g/mol, the constituent components used to produce the thermoplastic polyurethane polymer consisting of at least 95% by weight of one or more aliphatic diisocyanates I) and one or more aliphatic diols II), based on the total mass of the constituent components used, wherein the one or more aliphatic diisocyanates I) and the one or more aliphatic diols II) are present in a molar ratio in the range from 1:0:0.95 to 0.95:1.0, characterized in that the ratio (I) of the thermoplastic polyurethane polymer is in a range from 2.3 to 6, wherein (II) is the molar mass centrifugal agent and (III) is the molar mass average, in each case determined by gel permeation chromatography in hexafluoroisopropanol against polymethyl methacrylate as standard, also comprising B) at least one mould release agent. The invention also relates to the use of the moulding composition for producing mouldings and to the mouldings thereof.

IPC Classes  ?

• C08G 18/08 - Processes
• C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
• C08G 18/32 - Polyhydroxy compoundsPolyaminesHydroxy amines

Abstract

The present invention relates to an aqueous polyurethane dispersion, a method for the preparation thereof, a product comprising the same, and use thereof for a coating composition, an impregnating composition, an adhesive or a sealant. The aqueous polyurethane dispersion comprises a polyurethane obtained by reacting a system comprising the following components: A1) at least one polyisocyanate having an isocyanate functionality of not less than 2; A2) at least two different polytetramethylene ether glycols A2a) and A2b), the A2a) having a number average molecular weight of not more than 1500 g/mol, the A2b) having a number average molecular weight of more than 1500 g/mol; and A3) at least one anionic or potentially anionic hydrophilic agent having a number average molecular weight of 32 g/mol to 400 g/mol and containing hydroxyl and carboxyl functions; B) at least one amino-functional anionic or potentially anionic hydrophilic agent; and C) at least one amino-functional compound having a number average molecular weight of 32 g/mol to 400 g/mol and containing no hydrophilic group; wherein the ratio of the number average molecular weight of the A2a) to the number average molecular weight of the A2b) is 1:9 to less than 1:1, and the weight of the A3) amounts to 20% to 70% of the weight of the hydrophilic agents of the system, wherein the hydrophilic agents of the system are components A3 and B.

IPC Classes  ?

• C08G 18/12 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
• C08G 18/48 - Polyethers
• C08G 18/32 - Polyhydroxy compoundsPolyaminesHydroxy amines
• C08K 5/42 - Sulfonic acidsDerivatives thereof
• C08K 5/17 - AminesQuaternary ammonium compounds
• C08J 5/24 - Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs

Abstract

The invention relates to a 2K coating formulation that is printed using a valve jet printer.

IPC Classes  ?

• B41J 2/14 - Structure thereof

Abstract

The invention relates to a film containing a special polycarbonate or copolycarbonate of the formula (Ia), (I-2), (I-3) or (I-4) and to the use of the film in a security document and in a layer structure.

IPC Classes  ?

• C08G 64/06 - Aromatic polycarbonates not containing aliphatic unsaturation
• C08G 64/24 - General preparatory processes using carbonyl halides and phenols
• C08J 5/18 - Manufacture of films or sheets
• C08K 5/42 - Sulfonic acidsDerivatives thereof
• C09J 7/25 - PlasticsMetallised plastics based on macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
• B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters
• B32B 27/32 - Layered products essentially comprising synthetic resin comprising polyolefins
• B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
• B32B 27/18 - Layered products essentially comprising synthetic resin characterised by the use of special additives
• B32B 27/10 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of paper or cardboard

Abstract

The present invention provides a composition which is capable of forming a polyurethane foam having a high hardness and excellent sound absorption properties. [Solution] The present invention relates to a composition for forming polyurethane foam characterized in that the composition for forming polyurethane foam comprises a polyol, a polyisocyanate, and a catalyst, in which the polyol comprises a polyol (A) having a number average molecular weight of 1500 to 8000 g/mol, the catalyst comprises a trimerization catalyst, in which the polyurethane foam has an air permeability of not less than 0.1 L/sec.

IPC Classes  ?

• C08G 18/08 - Processes
• C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
• C08G 18/20 - Heterocyclic aminesSalts thereof
• C08G 18/48 - Polyethers
• C08J 9/12 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent

Abstract

A process for continuous production of polyether carbonate polyols by the addition of alkylene oxide and carbon dioxide in the presence of a DMC catalyst or a metal complex catalyst based on the metals cobalt and/or zinc, onto an H-functional starter substance is provided. Wherein (γ) the H-functional starter substance, alkylene oxide and catalyst are continuously metered into the reaction during the addition and the resulting reaction mixture is continuously discharged from the reactor, wherein (i) before step (γ), a suspension of catalyst in suspension medium and/or H-functional starter substance in the reactor is adjusted to a temperature T1 ranging from 100° C. to 150° C., wherein T1 is at least 10% above a temperature T2 and T2 is a temperature ranging from 50° C. to 135° C., and (ii) from commencement of the addition of alkylene oxide in step (γ) the temperature is continuously reduced to the temperature T2.

IPC Classes  ?

• C08G 64/34 - General preparatory processes using carbon dioxide and cyclic ethers
• C08G 64/02 - Aliphatic polycarbonates

Abstract

The invention relates to an aqueous two-component adhesive and use thereof, in particular to the use for laminating a rigid substrate and a plastic film, a laminated product comprising the adhesive, and a method for producing a laminated product. The aqueous two-component adhesive comprises component A and component B, the component A comprising more than 50% by weight and not more than 99% by weight of an aqueous polyurethane dispersion; the B component comprising 1% by weight to 16% by weight of water-dispersible modified polyisocyanate based on hexamethylene diisocyanate, the above weight percentage based on the amount of the adhesive being 100% by weight; wherein the aqueous polyurethane dispersion comprises polyurethane dispersed therein, the enthalpy of melting of the polyurethane being 26 to 100 J/g, preferably 30 to 100 J/g, particularly preferably 30 to 60 J/g, measured at 20° C. to 100° C. for the first heating curve by DSC according to DIN65467 (1999). The aqueous two-component adhesive has the advantages of safety and environmental protection, excellent performance and low laminating temperature.

IPC Classes  ?

• C09J 175/04 - Polyurethanes
• B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
• C08G 18/12 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
• C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain
• B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters
• B32B 37/12 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives

Abstract

The present application relates to a fiber reinforced thermoplastic composite sheet and a method for preparing the same. The fiber reinforced thermoplastic composite sheet has on its surface a marble texture effect obtained by laminating cut pieces of a continuous fiber reinforced thermoplastic composite unidirectional tape, wherein the fibers and the resin used in the continuous fiber reinforced thermoplastic composite unidirectional tape have different colors. The thermoplastic composite sheet may be prepared using a simple and quick method, and meet individual requirements of surface appearance of the final product.

IPC Classes  ?

• B29C 70/34 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or coreShaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression
• B29C 70/54 - Component parts, details or accessoriesAuxiliary operations
• B29C 70/20 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements using fibres of substantial or continuous length oriented in a single direction, e.g. roving or other parallel fibres

Abstract

The invention relates to a method for producing a thermoplastic polyurethane (G) using a reactive extrusion process, having the steps of: a) mixing a polyisocyanate stream (A) and a polyol stream (B) in a first mixing device (7) such that a mixture stream (C) is obtained, the mass flow rates of the polyisocyanate stream (A) and the polyol stream (B) being set such that the isocyanate index in the mixture stream (C) ranges from 55 to 85, b) introducing the mixture stream (C) into a circulating stream (D) which is conducted in a circular flow, the monomers of the polyisocyanates stream (A) and the polyol stream (B) in the circulating stream (D) being further reacted into OH-functional pre-polymers, c) separating a sub-stream from the circulating stream (D) as a prepolymer stream (E) and introducing same into an extruder (18), d) introducing an isocyanate feed stream (F) into the extruder (18) downstream of the introduction point of the prepolymer stream (E) in the extruder working direction, wherein the introduction process is carried out such that the OH-functional prepolymers contained in the prepolymer stream (E) and the polyisocyanate contained in the isocyanate feed stream (F) are in an isocyanate index of 85 to 120, and e) reacting the prepolymer stream (E) with the isocyanate feed stream (F) in the extruder (18), thereby obtaining the thermoplastic polyurethane (G) as the extrudate.

IPC Classes  ?

• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
• C08G 18/32 - Polyhydroxy compoundsPolyaminesHydroxy amines
• C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
• C08G 18/08 - Processes

Abstract

The present invention relates to hydroxy-terminated polyurethane prepolymers that consist to an extent of at least 90% by weight of the product of the reaction of hexamethylene 1,6-diisocyanate with butane-1,4-diol and have an allophanate content of ≤1.00 mol %, to a process for the production thereof, to compositions comprising such polyurethane prepolymers and to the use of said polyurethane prepolymers.

IPC Classes  ?

• C08G 18/08 - Processes
• C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
• C08G 18/32 - Polyhydroxy compoundsPolyaminesHydroxy amines

Abstract

The invention relates to a multi-stage process for the continuous preparation of thermoplastic polyurethanes by reacting one or more aliphatic, cycloaliphatic and/or araliphatic diols with one or more aliphatic, cycloaliphatic and/or araliphatic diisocyanates, wherein the total reaction enthalpy is ≤−500 kJ/kg over all the process stages at a molar ratio of diol to diisocyanate of 1.0:1.0.

IPC Classes  ?

• C08G 18/08 - Processes
• C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
• C08G 18/32 - Polyhydroxy compoundsPolyaminesHydroxy amines
• C08J 3/12 - Powdering or granulating

Abstract

b) to form polyurethanes (37).

IPC Classes  ?

• C07C 263/10 - Preparation of derivatives of isocyanic acid by reaction of amines with carbonyl halides, e.g. with phosgene
• C01B 32/80 - Phosgene
• C08G 18/48 - Polyethers
• C08J 11/12 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by dry-heat treatment only
• C25B 1/04 - Hydrogen or oxygen by electrolysis of water
• C25B 1/26 - ChlorineCompounds thereof
• C25B 15/08 - Supplying or removing reactants or electrolytesRegeneration of electrolytes

Abstract

The present invention relates to a process for continuous production of thermoplastic polyurethane by reacting the components (A) one or more cycloaliphatic, aliphatic and/or araliphatic polyisocyanates and (B) one or more cycloaliphatic, aliphatic and/or araliphatic polyols, wherein the entirety of component (B) has a hydroxyl number of 600 mg KOH/g to 1830 mg KOH/g as determined according to DIN EN ISO 4629-2:2016. The process comprises the process steps of: a) preparing a mixture of a portion of component (A), a portion of or the entirety of component (B) and optionally a portion or the entirety of component (C), where in process step a) there is a molar ratio of component (A) to component (B) in the range from 0.6:1.0 to 0.95:1.0; b) mixing the mixture prepared in process step a) with an outgoing oligomerisate substream obtained from process step e); c) reacting the mixture from process step b); d) dividing the reaction mixture obtained in step c) into two outgoing substreams; e) recycling one outgoing substream from process step d) as an incoming substream for the mixture in process step b); f) mixing the remainder of component (A) and where present the remainder of components (B) and (C) with the remaining outgoing substream of process step d); and g) reacting the mixture obtained in process step f) to obtain a thermoplastic polyurethane. The invention further relates to thermoplastic polyurethane obtainable or obtained by the process of the invention, and also to a composition containing the thermoplastic polyurethane according to the invention and to the use thereof.

IPC Classes  ?

• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
• C08G 18/32 - Polyhydroxy compoundsPolyaminesHydroxy amines
• C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step

Abstract

The invention relates to a seat for a vehicle, preferably for a land craft, a watercraft, and/or an aircraft, comprising at least one multilayer structural component (1) with at least one first (6) and at least one second ply (5) of a composite material, in each case containing fibers which are integrated into a thermoplastic, and with a layer (7) which is arranged between said plies and is made of at least one foamed thermoplastic; to a method for producing same, said method having at least the following steps (A): providing at least one first and at least one second ply of a composite material, in each case containing fibers which are integrated into a thermoplastic, (B) thermoforming the first ply of composite material into a lower seat shell, (C) thermoforming the second ply of composite material into an upper seat shell, (D) arranging the lower seat shell and the upper seat shell in a tool, such that a gap is formed between the two seat shells, (E) introducing foamed particles made of a thermoplastic into the gap, and (F) pressing the two seats shells and the foamed particles in order to obtain the seat; and to the use of the seat in a vehicle, preferably in a land craft, a watercraft, and/or an aircraft.

IPC Classes  ?

• B60N 2/70 - Upholstery springs
• B60N 2/68 - Seat frames
• B29C 69/02 - Combinations of shaping techniques not provided for in a single one of main groups , e.g. associations of moulding and joining techniquesApparatus therefor of moulding techniques only
• B29C 70/46 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
• B29C 51/14 - Shaping by thermoforming, e.g. shaping sheets in matched moulds or by deep-drawingApparatus therefor using multilayered preforms or sheets
• B29C 51/00 - Shaping by thermoforming, e.g. shaping sheets in matched moulds or by deep-drawingApparatus therefor
• B29C 44/44 - Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in the form of expandable particles or beads
• B29C 44/14 - Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed part being a lining
• B29D 99/00 - Subject matter not provided for in other groups of this subclass
• B32B 7/08 - Interconnection of layers by mechanical means
• B32B 5/20 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material foamed in situ
• B32B 5/12 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments characterised by the relative arrangement of fibres or filaments of adjacent layers
• B32B 27/06 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance
• B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
• B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters

Abstract

The invention relates to polymerizable compositions that are suitable for preparing polyisocyanurate-based plastics and have an extended worklife as compared to the compositions conventionally used for this purpose.

IPC Classes  ?

• C08G 18/79 - Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
• C08G 18/75 - Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
• C08G 18/32 - Polyhydroxy compoundsPolyaminesHydroxy amines
• C08G 18/22 - Catalysts containing metal compounds
• C08G 18/09 - Processes comprising oligomerisation of isocyanates or isothiocyanates involving reaction of a part of the isocyanate or isothiocyanate groups with each other in the reaction mixture
• C08G 18/72 - Polyisocyanates or polyisothiocyanates
• C09D 175/04 - Polyurethanes
• C09J 175/04 - Polyurethanes

Abstract

A method for producing a Spar Cap, trailing edge or other reinforced laminate structural part of wind turbine blade, the Spar Cap, trailing edge or other reinforced laminate structural part of wind turbine blade produced by the method and its use are provided. The method for producing a Spar Cap, trailing edge or other reinforced laminate structural part of wind turbine blade improves production efficiency and saves costs.

IPC Classes  ?

• B29C 70/00 - Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
• B29C 70/44 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
• B29C 70/52 - Pultrusion, i.e. forming and compressing by continuously pulling through a die
• B29C 70/86 - Incorporating in coherent impregnated reinforcing layers

Abstract

A polyol formulation for producing flameproof polyurethane/polyisocyanate rigid foams (referred to individually or jointly in the following as “PUR/PIR rigid foams”), containing a polyester polyol having an OH number ≤250 mg KOH/g, a functionality of 1.5 to 2.5 and a free glycol content with Mn<150 g/mol of <6 wt. %, a polyethylene glycol with an average molecular weight of <700 g/mol and an average functionality of <2.5 and specific polyethyleneglycol alkylphenyl ethers, and methods for producing PUR/PIR rigid foams using said polyol formulation and to the PUR/PIR rigid foams obtained thereby are provided.

IPC Classes  ?

• C08G 18/22 - Catalysts containing metal compounds
• C08K 5/524 - Esters of phosphorous acids, e.g. of H3PO3
• C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
• C08G 18/48 - Polyethers
• C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain
• C08G 18/40 - High-molecular-weight compounds
• C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
• C08G 18/32 - Polyhydroxy compoundsPolyaminesHydroxy amines
• C08J 9/14 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
• C08J 9/12 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent

Abstract

The invention relates to a multi-layer, preferably co-extruded, plastic film with improved modulus properties, which is suitable, in particular, for producing three-dimensionally shaped articles.

IPC Classes  ?

• B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
• B32B 27/40 - Layered products essentially comprising synthetic resin comprising polyurethanes
• B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters
• A61C 5/00 - Filling or capping teeth
• C08J 7/04 - Coating
• C08L 75/08 - Polyurethanes from polyethers
• A61C 13/00 - Dental prosthesesMaking same
• B29C 48/92 - Measuring, controlling or regulating
• B29C 48/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor
• B29C 48/08 - Flat, e.g. panels flexible, e.g. films
• B29C 48/625 - Screws characterised by the ratio of the threaded length of the screw to its outside diameter [L/D ratio]
• B29C 48/21 - Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
• B29C 48/30 - Extrusion nozzles or dies
• B29C 48/34 - Cross-head annular extrusion nozzles, i.e. for simultaneously receiving moulding material and the preform to be coated

Abstract

The present invention relates to an acid-resistant and alkali-resistant composition, a preparation process thereof and use thereof in producing an article, and an article comprising a substrate coated or impregnated with the same and the preparation method and use of the article. The composition contains: at least one aqueous polyurethane dispersion having a carboxyl group; at least one crosslinking agent having an isocyanate reactive group; at least one crosslinking agent having a carboxyl reactive group; and optionally an additive; wherein, the amount of the carboxyl groups in said aqueous polyurethane dispersion is more than 0.05 wt %, based on the amount of said aqueous polyurethane dispersion being 100 wt %; the amount of said crosslinking agent having an isocyanate reactive group is 0.2 wt %-10 wt %, based on the amount of said composition being 100 wt %; the molar ratio of the carboxyl reactive groups to the carboxyl groups of said composition is more than 0.5. The film formed with the composition of the present invention has good acid-resistance and alkali-resistance. The product obtained by treating with the composition of the present invention has flat appearance and good handfed.

IPC Classes  ?

• C08G 18/44 - Polycarbonates
• C08G 18/08 - Processes
• C08G 18/12 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
• D06M 15/568 - Reaction products of isocyanates with polyethers

Abstract

A method for producing polyether carbonate polyols via the following steps: (i) accumulating alkylene oxide and carbon dioxide on a H-functional starter substance in the presence of a double metal cyanide catalyst or a metal complex catalyst based on the metals zinc and/or cobalt, wherein a reaction mixture containing the polyether carbonate polyol is obtained; and (ii) adding at least one component K to the reaction mixture containing the polyether carbonate polyol, wherein a buffer system suitable for buffering a pH value in the region of pH 3.0 to 9.0 is used as component K, wherein the component K is free from compounds containing P—OH— groups.

IPC Classes  ?

• C08G 65/26 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
• C08G 64/34 - General preparatory processes using carbon dioxide and cyclic ethers

Abstract

A method for preparing polyether carbonate alcohols by attaching cyclic carbonate to an H-functional starter substance in the presence of a catalyst, characterized in that a tribasic alkali- or alkaline earth metal phosphate is used as the catalyst, the alkali metal being selected from potassium or cesium.

IPC Classes  ?

• C08G 65/26 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
• C08G 18/44 - Polycarbonates
• C08G 64/02 - Aliphatic polycarbonates
• C08G 64/30 - General preparatory processes using carbonates

Abstract

The present invention relates to a urethane group-containing polyisocyanate prepared by reacting a system containing organic polyhydroxy compounds and excess toluene diisocyanate and, a process for preparing the same, a product containing the polyisocyanate, and the use thereof as a polyisocyanate component in a polyurethane paint and a polyurethane adhesive. The polyisocyanate has the following characteristics: a. the ratio of the integral area of the component peaks having a. weight-average molecular weight of 800±50 to the integral area of the shoulder peaks having a weight-average molecular weight of 950±50 is 2-14; and b. the viscosity is not higher than 2500 mPa·s. The polyisocyanate of the present invention has a good storage stability.

IPC Classes  ?

• C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
• C08G 18/32 - Polyhydroxy compoundsPolyaminesHydroxy amines
• C08G 18/12 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
• C09D 175/04 - Polyurethanes
• C09J 175/04 - Polyurethanes

Abstract

The invention relates to compounds and methods for extending the pot life of mixtures of isocyanates and isocyanate-reactive compounds when using acidic phosphoric acid ester as a mould release agent.

IPC Classes  ?

• C08G 18/38 - Low-molecular-weight compounds having hetero atoms other than oxygen
• C08G 18/08 - Processes
• C08G 18/48 - Polyethers
• C08G 18/52 - Polythioethers
• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
• C08G 18/75 - Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
• C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
• C08G 18/80 - Masked polyisocyanates
• C08K 5/521 - Esters of phosphoric acids, e.g. of H3PO4

Abstract

A process for preparing polyether carbonate alcohols by attaching cyclic propylene carbonate to an H-functional starter substance in the presence of a catalyst, characterized in that at least one compound according to formula MnX (I) is used as a catalyst, wherein M is selected from the alkali metal cations Li+, Na+, K+ and Cs+, X is selected from the anions VO3−, WO42−, MoO42− and VO43−, n is 1, if X═VO3−, n is 2, if X═WO42− or MoO42−, and n is 3, if X═VO43−.

IPC Classes  ?

• C08G 64/30 - General preparatory processes using carbonates

Abstract

A process for preparing polyether carbonate alcohols by attaching cyclic ethylene carbonate to an H-functional starter substance in the presence of a catalyst, characterized in that at least one compound according to formulae X[VO3] (1), Y2[WO4] (2), or Y3[VO4] (3), wherein X=alkali metal, preferably potassium or cesium, and Y=potassium or cesium, is used.

IPC Classes  ?

• C08G 18/44 - Polycarbonates

Abstract

The invention relates to a process of preparing allophanate- and/or thioallophanate group-containing compounds comprising the following steps: reacting A) at least one component having at least one uretdione group with B) at least one component having at least one hydroxyl and/or thiol group, in the presence C) of at least one catalyst, containing a structural element of the general formulae (I) and/or (II), wherein R1, R2, R3, R4, R5 and R6 independently of each other represent the same or different radicals meaning saturated or unsaturated, linear or branched, aliphatic, cycloaliphatic, araliphatic or aromatic organic radicals with 1 to 18 carbon atoms that are substituted or unsubstituted and/or have heteroatoms in the chain, the radicals being capable of forming, even when combined with each other and optionally together with an additional heteroatom, rings with 3 to 8 carbon atoms that can optionally be further substituted, wherein R3, R4, R5 and R6 independently of each other also can represent hydrogen, and R7 represents hydrogen or a carboxylate anion (COO−), the at least one component A) having at least one uretdione group being polyaddition compounds A2) that can be obtained by reacting isocyanate-functional uretdione groups A1) with alcohols and/or amines that have a free isocyanate group content of less than 5 wt. % in their solvent-free form.

IPC Classes  ?

• C08G 18/02 - Polymeric products of isocyanates or isothiocyanates of isocyanates or isothiocyanates only
• C08G 18/20 - Heterocyclic aminesSalts thereof
• C08L 75/04 - Polyurethanes
• C09D 175/04 - Polyurethanes

Abstract

A method for producing polyether ester carbonate polyols by catalytically adding alkylene oxide and carbon dioxide to an H-functional initiator substance in the presence of a double metal cyanide catalyst. The method comprises the following steps: (α) feeding a partial amount of H-functional initiator substance and/or a suspension agent which does not have any H-functional groups into a reactor, optionally together with DMC catalyst, (γ) adding alkylene oxide and optionally carbon dioxide to the reactor during the reaction. The method is characterized in that in step (γ) lactide is added to the reactor.

IPC Classes  ?

• C08G 64/18 - Block or graft polymers
• C08G 64/34 - General preparatory processes using carbon dioxide and cyclic ethers

Abstract

a).

IPC Classes  ?

• C08G 18/00 - Polymeric products of isocyanates or isothiocyanates
• C07C 263/10 - Preparation of derivatives of isocyanic acid by reaction of amines with carbonyl halides, e.g. with phosgene
• C08J 11/10 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
• C10B 53/07 - Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of synthetic polymeric materials, e.g. tyres
• C25B 1/00 - Electrolytic production of inorganic compounds or non-metals

Abstract

A method for preparing polyether carbonate polyols by means of the following steps: (i) adding alkylene oxide and carbon dioxide onto an H-functional starter substance in the presence of a double metal cyanide catalyst or a metal complex catalyst based on the metals zinc and/or cobalt to obtain a reaction mixture containing the polyether carbonate polyol, (ii) introducing at least one component K to the reaction mixture containing the polyether carbonate polyol, characterized in that the component K is at least one compound selected from the group consisting of monocarboxylic acids, polycarboxylic acids, hydroxycarboxylic acids and vinylogous carboxylic acids, wherein compounds containing a phosphorus-oxygen bond or compounds of phosphorus that can form one or more P—O bonds through reaction with OH-functional compounds, and acetic acid are excluded from component K.

IPC Classes  ?

• C08G 65/26 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds

Abstract

The invention relates to a process for purifying at least one isocyanate selected from the group consisting of aliphatic, cycloaliphatic, araliphatic isocyanates and mixtures thereof, to a process for producing at least one isocyanate selected from the group consisting of aliphatic, cycloaliphatic, araliphatic isocyanates and mixtures thereof, to the isocyanate obtainable by this process, to a polyurethane constructed from at least one such isocyanate, to the use of this isocyanate and to an optical component containing at least one polyurethane according to the invention.

IPC Classes  ?

• C07C 263/20 - SeparationPurification

Abstract

The invention relates to a method for purifying at least one reaction product of at least one diisocyanate, comprising at least the following steps: (A) providing a mixture A at least containing the at least one reaction product of the at least one diisocyanate and, if applicable, the at least one diisocyanate, (B) adding, if applicable more of, at lease one diisocyanate to mixture A from step (A) in order to obtain a mixture B, and (C) separating off the at least one diisocyanate from mixture B from step (B) by distillation in order to obtain the purified at least one reaction product of the at least one diisocyanate. Furthermore, the present invention comprises the reaction product of at least one diisocyanate which can be obtained by the method according to the invention and the use thereof for producing polyurethane foams, polyurethane hydrogels, polyurethane elastomers, varnishes and bonding adhesives.

IPC Classes  ?

• B01D 3/34 - Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances
• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
• C08G 18/48 - Polyethers
• C08J 9/12 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
• B01D 3/12 - Molecular distillation

Abstract

A process for producing an amine-based polyol by reacting a tertiary amine with various epoxides in two or more steps. The present disclosure also relates to the amine-based polyol obtained by this process and the use of the amine-based polyol in the production of polyurethanes, wherein the polyurethanes are preferably synthesized based on toluene diisocyanate (TDI) and are preferably molded foams.

IPC Classes  ?

• C08G 18/50 - Polyethers having hetero atoms other than oxygen
• C08G 65/26 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds

Abstract

A process for the carbonylation of epoxides in the presence of catalyst systems, wherein the carbonylation takes place in the presence of carbon monoxide, and wherein the catalyst system contains a molybdenum-based compound. Carbonylation products as well as carbonylation derivatives and to the use of the claimed catalyst systems for the carbonylation of epoxides are also provided.

IPC Classes  ?

• C07D 305/12 - Beta-lactones
• C08G 63/08 - Lactones or lactides
• C08G 63/82 - Preparation processes characterised by the catalyst used
• B01J 31/02 - Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
• B01J 31/18 - Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes containing nitrogen, phosphorus, arsenic or antimony
• B01J 31/22 - Organic complexes

Abstract

A method for preparing a polyurethane composite by a vacuum infusion process, a polyurethane composite prepared by said method and use thereof. The method for preparing a polyurethane composite by a vacuum infusion process of the present invention can reduce raw materials and production costs.

IPC Classes  ?

• B29C 70/48 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM]
• B29C 70/68 - Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers
• B29C 67/24 - Shaping techniques not covered by groups , or characterised by the choice of material
• C08J 5/24 - Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
• C08J 9/40 - Impregnation

Abstract

A one-step process for preparing a reticulated flexible polyurethane foam, a reticulated flexible polyurethane foam prepared by the process, and the use of the flexible polyurethane foam in sofa, mattress and the like are provided. The process is a one-step process, which does not comprise the step of the reticulation treatment, and therefore is safe, environmentally friendly and highly efficient.

IPC Classes  ?

• C08G 18/79 - Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates

Abstract

The present invention relates to a process for producing polycarbonate according to a phase boundary process, from at least one dihydroxydiaryl alkane, phosgene, at least one catalyst and at least one chain terminator, the process allowing a reduction in the phosgene excess by a specific energy input during the dispersion of the aqueous and organic phases. The process also produces a polycarbonate with a low proportion of oligomers and a low proportion of Di-chain terminator carbonate.

IPC Classes  ?

• C08G 64/24 - General preparatory processes using carbonyl halides and phenols
• C08G 64/14 - Aromatic polycarbonates not containing aliphatic unsaturation containing a chain-terminating or -crosslinking agent

Abstract

The present invention relates to an aqueous polyurethane-urea dispersion and a preparation process thereof, an adhesive containing the same, and an adhesion article obtained by adhering with said adhesive. The aqueous polyurethane-urea dispersion comprises a polyurethane-urea dispersed therein, said polyurethane-urea is obtained from a reaction of a system comprising the following components: a polyisocyanate mixture; a polyester polyol having a melting temperature of greater than 32° C., wherein the melting temperature is measured by using a DSC-7 from Perkin-Elmer at 20-100° C. according to DIN 65467, and taken from the first temperature-rising curve; an emulsifier; an optional monohydroxy polyether and an optional diamine; the polyisocyanate mixture contains hexamethylene diisocyanate and dicyclohexylmethane diisocyanate, the amount of hexamethylene diisocyanate is 0.01 wt %-25 wt %, the amount of dicyclohexylmethane diisocyanate is 0.01 wt %-6 wt %, based on the amount of the system as 100 wt %. The adhesive containing the aqueous polyurethane-urea dispersion of the present invention has a low activation temperature and a good mechanical property.

IPC Classes  ?

• C09J 175/06 - Polyurethanes from polyesters
• C09J 175/02 - Polyureas
• C08G 18/75 - Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
• C08G 18/66 - Compounds of groups , , or
• C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain
• C08G 18/32 - Polyhydroxy compoundsPolyaminesHydroxy amines

Abstract

The present invention relates to a method for preparing a pultruded polyurethane composite by a polyurethane pultrusion process, a pultruded polyurethane composite prepared by said method, and uses thereof. The method for preparing a pultruded polyurethane composite of the present invention employs short molds, improves production efficiency and saves costs.

IPC Classes  ?

• B29C 70/52 - Pultrusion, i.e. forming and compressing by continuously pulling through a die
• C08J 5/24 - Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
• C08G 18/12 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
• C08G 18/75 - Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
• C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
• C08G 18/67 - Unsaturated compounds having active hydrogen
• C08G 18/44 - Polycarbonates
• C08G 18/48 - Polyethers

Abstract

The invention relates to flame-retardant polyurethane foam materials or polyurethane/polyisocyanurate foam materials (also referred to individually or collectively as “PUR/PIR foam materials” below) and to methods for producing PUR/PIR foam materials by reacting a reaction mixture containing A1 an isocyanate-reactive component, A2 a propellant, A3 a catalyst, A4 optionally an additive, and A5 a flame retardant with B an isocyanate component, wherein the production is carried out using an index of 80 to 600. The invention is characterized in that the flame retardant A5 contains (hydroxymethyl)phosphonate and optionally the dimer thereof as component A5.1.

IPC Classes  ?

• C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
• C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain
• C08G 18/16 - Catalysts
• C08G 18/18 - Catalysts containing secondary or tertiary amines or salts thereof
• C08G 18/22 - Catalysts containing metal compounds
• C08K 5/523 - Esters of phosphoric acids, e.g. of H3PO4 with hydroxyaryl compounds
• C08K 5/5357 - Esters of phosphonic acids cyclic
• C08J 9/00 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof
• C08J 9/12 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
• C08J 9/14 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic

Abstract

The present invention relates to a layer arrangement, having: a foil layer (100) provided with optical information, and a three-dimensionally structured layer (200) having a smooth side (210) and a structured side (220) opposite the smooth side (210), wherein the structured side (220) has at least one face (230) which is not coplanar with the smooth side (210) and faces a previously defined reference location (400), and the structured side (220) has at least one face (235) which is not coplanar with the smooth side (210) and faces away from the previously defined reference location (400). The three-dimensionally structured layer (200) is formed by a thermoplastic polymer which has an optical haze Ty (D65/10°) according to ASTM D1003 of ≥10% with a layer thickness of 4 mm. The foil layer (100) provided with optical information is connected to the structured side (220) of the three-dimensionally structured layer (200). The foil layer (100) provided with optical information is printed with at least one part of a two-dimensional projection (500) of the three-dimensionally structured layer (200), and the projection (520) of the at least one face (230) facing the reference location (400) is shown differently on the foil layer (100) provided with optical information than the projection (530) of the at least one face (235) facing away from the reference location (400).

IPC Classes  ?

• B32B 3/26 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids
• B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
• B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
• B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters

Abstract

The invention relates to an integrated process for conditioning process water (1) from the production (I) of polycarbonate, which process water contains at least catalyst residues and/or organic impurities and sodium chloride, and subsequently utilizing the process water (1) in a subsequent sodium chloride electrolysis (V).

IPC Classes  ?

• C08G 64/24 - General preparatory processes using carbonyl halides and phenols
• C01B 32/80 - Phosgene
• C08G 64/06 - Aromatic polycarbonates not containing aliphatic unsaturation
• B01J 20/20 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbonSolid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising carbon obtained by carbonising processes
• C01B 32/318 - Preparation characterised by the starting materials
• C25B 1/46 - Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis in diaphragm cells
• C25B 15/08 - Supplying or removing reactants or electrolytesRegeneration of electrolytes
• B01D 61/02 - Reverse osmosisHyperfiltration
• B01D 69/02 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor characterised by their properties
• B01D 71/56 - Polyamides, e.g. polyester-amides
• B01D 15/08 - Selective adsorption, e.g. chromatography

Abstract

The invention provides a process for producing diol, characterized in that the process comprises the steps of (1-i) addition of alkylene oxide and carbon dioxide to an H-functional starter substance in the presence of a catalyst to obtain polyether carbonate polyol and cyclic carbonate, (1-ii) separation of the cyclic carbonate from the resulting reaction mixture from step (1-i), (1-iii) hydrolytic cleavage of the cyclic carbonate separated from step (1-ii) into carbon dioxide and diol, (1-iv) optionally distillative purification of the diol from step (1-iii), wherein (η) to the cyclic carbonate from step (1-ii) and/or to the diol a Lewis or Brønsted acid, excluding carboxylic acids having a pKa of >3.0, and optionally water are added and the reaction mixture obtained is optionally neutralized.

IPC Classes  ?

• C07D 317/36 - Alkylene carbonatesSubstituted alkylene carbonates
• C08G 65/26 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
• C08G 64/40 - Post-polymerisation treatment
• C08G 64/34 - General preparatory processes using carbon dioxide and cyclic ethers

Abstract

A method for producing a prepolymer for the production of an integral polyurethane foam is provided. The prepolymer is or can be obtained by reaction of a composition that contains the following components: component A containing a polyoxymethylene-polyoxyalkylene block copolymer having a hydroxyl number of 20 mg KOH/g to 200 mg KOH/g as component Al, component B containing di- and/or polyisocyanates with an NCO content of 15 to 45 wt.-% relative to component B, 0.04 to 1.0 wt.-%, relative to the composition, a proton acid as component C, and optionally a component D that contains auxiliary agents, at a characteristic number of 450 to 850. The invention further relates to the prepolymer obtained by the method, to an integral polyurethane foam based on the prepolymer, and to the use thereof.

IPC Classes  ?

• C08G 18/32 - Polyhydroxy compoundsPolyaminesHydroxy amines
• C08G 18/08 - Processes
• C08G 18/40 - High-molecular-weight compounds
• C08G 18/48 - Polyethers
• C08G 18/56 - Polyacetals
• C08G 18/66 - Compounds of groups , , or
• C08G 18/72 - Polyisocyanates or polyisothiocyanates
• C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
• C08G 18/79 - Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
• C08K 5/095 - Carboxylic acids containing halogens
• C08K 5/521 - Esters of phosphoric acids, e.g. of H3PO4
• C08J 9/02 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by the reacting monomers or modifying agents during the preparation or modification of macromolecules

Abstract

A polyurethane microcellular elastomer, a non-pneumatic tire and a preparation process and use thereof are provided. The polyurethane microcellular elastomer is obtained from a polyurethane reaction system comprising components such as isocyanate, trimethylolpropane-started polycaprolactone triol, a catalyst and a foaming agent. The non-pneumatic tire produced from the polyurethane microcellular elastomer has very strong fatigue resistance and can be used for non-motor vehicles running at high speed.

IPC Classes  ?

• B60C 7/10 - Non-inflatable or solid tyres characterised by means for increasing resiliency
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain
• C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
• C08G 18/48 - Polyethers
• C08G 18/40 - High-molecular-weight compounds
• C08G 18/08 - Processes

Abstract

The invention relates to a method for improving prediction relating to the production of a polymeric product, wherein a prediction model (1) is provided for describing a functional relationship between production parameters (2), which production parameters (2) comprise formulation portions data specifying raw material portions used for the production of a respective polymeric product and comprise processing parameters data specifying machine process properties during the production of that polymeric product, and product properties data (3) associated with that polymeric product on a computer system (5), which production parameters (2) and product properties data (3) form data entry properties for a respective polymeric product, wherein user input is provided comprising user product targets specifying only a part of the data entry properties, wherein a new data entry (7) with data entry properties is generated by the computer system (5) for realizing the user product targets, wherein for the new data entry (7) the specified data entry properties are determined, wherein a reward metric (8) is determined by the computer system (5) based on the determined data entry properties and wherein based upon the reward metric (8) the prediction model (1) is updated by the computer system (5).

IPC Classes  ?

• G06N 5/04 - Inference or reasoning models

Abstract

The present invention relates to novel thermolatent catalysts for the manufacture of isocyanurate and polyisocyanate polymers.

IPC Classes  ?

• C08G 18/22 - Catalysts containing metal compounds
• B01J 31/04 - Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing carboxylic acids or their salts
• C08G 18/09 - Processes comprising oligomerisation of isocyanates or isothiocyanates involving reaction of a part of the isocyanate or isothiocyanate groups with each other in the reaction mixture
• C08G 18/02 - Polymeric products of isocyanates or isothiocyanates of isocyanates or isothiocyanates only
• B01J 35/02 - Solids

Abstract

The invention relates to a process for preparing prepolymers that comprise a polyoxymethylene block. The invention also relates to prepolymers that can be obtained by said process and to mixtures of the prepolymers with OH-reactive compounds, preferably polyisocyanates. The invention further relates to a chemical-technical process for preparing a chemical product of defined composition.

IPC Classes  ?

• C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
• C08G 18/48 - Polyethers
• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
• C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
• C08G 18/75 - Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
• C08G 18/08 - Processes

Abstract

The invention relates to a method for producing a specific hydroxyl compound by decarboxylating a specific carboxylic acid compound or a salt of said carboxylic acid compound in the absence of a catalyst and to a method for producing a bisphenol.

IPC Classes  ?

• C07C 37/50 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions decreasing the number of carbon atoms
• C07C 37/74 - SeparationPurificationStabilisationUse of additives by physical treatment by distillation

Abstract

The present invention relates to a process for producing translucent polyurethane and polyisocyanurate foams by reaction of a component A, comprising A1 at least one polyol reactive with component B; A2 optionally at least one amine; A3 water and optionally formic acid or at least one physical blowing agent or mixtures thereof; A4 at least one foam stabilizer; A5 optionally auxiliary and/or additive substances; A6 optionally at least one flame retardant; A7 at least one catalyst; and a component B, comprising B1 at least one aliphatic or cycloaliphatic polyisocyanate component or a combination thereof; and B2 optionally at least one hydrophilized isocyanate; and B3 more than or equal to 10 parts by weight and up to 70 parts by weight of an aromatic polyisocyanate component, wherein the parts by weight of B3 are based on the sum of the parts by weight of B1 to B3 which are normalized to 100 parts by weight. The invention is characterized in that the reaction of component A with component B is carried out at an isocyanate index of at least 150, wherein the obtained translucent polyurethane and polyisocyanurate foams have a light transmission according to EN ISO 13468-2:2006 of at least 10% and a haze of at least 70%, determined according to ASTM D1003-13, in each case measured at a layer thickness of 20 mm. The present invention further relates to the polyurethane and polyisocyanurate foams obtained by the process and to the use thereof as a construction element, as a wall element, as a floor element, in buildings, in vehicles or lamps.

IPC Classes  ?

• C08G 18/72 - Polyisocyanates or polyisothiocyanates
• B32B 5/18 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material
• B32B 17/06 - Layered products essentially comprising sheet glass, or fibres of glass, slag or the like comprising glass as the main or only constituent of a layer, next to another layer of a specific substance
• B32B 27/06 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance
• B32B 27/30 - Layered products essentially comprising synthetic resin comprising vinyl resinLayered products essentially comprising synthetic resin comprising acrylic resin
• B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters
• C08G 18/22 - Catalysts containing metal compounds
• C08G 18/24 - Catalysts containing metal compounds of tin
• C08G 18/32 - Polyhydroxy compoundsPolyaminesHydroxy amines
• C08G 18/48 - Polyethers
• C08G 18/66 - Compounds of groups , , or
• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
• C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
• C08J 9/00 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof
• C08J 9/12 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
• C08K 5/521 - Esters of phosphoric acids, e.g. of H3PO4

Abstract

Provided is an adhesive sheet for mounting a protective shell to a wind turbine blade, wherein the adhesive sheet includes a hot-melt adhesive layer, wherein on at least one surface of the adhesive layer, at least one fixation structure consisting of a pressure-sensitive adhesive is attached.

IPC Classes  ?

• C09J 7/38 - Pressure-sensitive adhesives [PSA]
• C09J 7/35 - Heat-activated
• F03D 1/06 - Rotors
• F03D 80/50 - Maintenance or repair

Abstract

The present invention relates to aqueous polyurethane urea dispersions based on polyester polyols, which dispersions result in low emissions and are used as coating compositions.

IPC Classes  ?

• C08G 18/08 - Processes
• C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain
• C08G 18/32 - Polyhydroxy compoundsPolyaminesHydroxy amines
• A61K 8/87 - Polyurethanes

Abstract

The present inventions relates to the preparation of 3,3,5-trimethylcyclohexylidene bisphenol. Especially, the present invention relates to the preparation of 3,3,5-trimethylcyclohexylidene bisphenol from 3,3,5-trimethylcyclohexanone and phenol in the presence of a gaseous acidic catalyst. The preparation comprises a first drying step and a second drying step wherein in the second drying step the temperature is increased in comparison to first drying step or in the second drying step the pressure is lowered in comparison to first drying step, or in second drying step both the temperature is increased and the pressure is lowered in comparison to the first drying step (d1).

IPC Classes  ?

• C07C 37/20 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms using aldehydes or ketones
• C07C 37/82 - SeparationPurificationStabilisationUse of additives by physical treatment by solid-liquid treatmentSeparationPurificationStabilisationUse of additives by physical treatment by chemisorption
• C07C 37/84 - SeparationPurificationStabilisationUse of additives by physical treatment by crystallisation
• C07C 37/68 - SeparationPurificationStabilisationUse of additives

Abstract

The invention relates to a process for producing a polyester by reacting a H-functional starter substance with a lactone in the presence of a catalyst, wherein the H-functional compound has one or more free carboxyl groups, wherein the lactone is a four-membered ring lactone, and wherein the catalyst is a Brönsted acid or a double metal cyanide (DMC) catalyst. The invention also relates to the polyester that can be obtained by the present invention.

IPC Classes  ?

• C08G 63/08 - Lactones or lactides
• C08G 63/82 - Preparation processes characterised by the catalyst used
• C09D 167/04 - Polyesters derived from hydroxy carboxylic acids, e.g. lactones
• C09J 167/04 - Polyesters derived from hydroxy carboxylic acids, e.g. lactones

Abstract

The invention relates to a method for producing aniline or an aniline derivative, in which a solution of aminobenzoic acid in aniline with a mass fraction of aniline in the solution, in relation to the total mass of aminobenzoic acid and aniline, in the region of 20% to 85%, is subject to a thermal decarboxylation at a temperature in the region of 165° C. to 500° C. without the presence of a non-system catalyst, such that the aminobenzoic acid is converted into aniline. The obtained aniline can be converted into derivatives, such as di- and polyamines of the diphenylmethane series.

IPC Classes  ?

• C12P 13/00 - Preparation of nitrogen-containing organic compounds
• C07C 209/68 - Preparation of compounds containing amino groups bound to a carbon skeleton from amines, by reactions not involving amino groups, e.g. reduction of unsaturated amines, aromatisation, or substitution of the carbon skeleton
• C09B 29/01 - Monoazo dyes prepared by diazotising and coupling characterised by the diazo component

Abstract

The present invention relates to a method for producing an organooxysilyl-crosslinked polymer by reacting a polyether carbonate polyol which contains carbon-carbon double bonds with a polysiloxane compound in the presence of a suitable catalyst. Suitable polysiloxane compounds have at least two Si—H bonds. This invention also relates to organooxysilyl-crosslinked polymers which are formed by this process.

IPC Classes  ?

• C08G 64/34 - General preparatory processes using carbon dioxide and cyclic ethers
• C08G 64/42 - Chemical after-treatment
• C08G 64/18 - Block or graft polymers
• C08G 64/02 - Aliphatic polycarbonates

Abstract

The invention relates to a method for producing aminobenzoic acid or an aminobenzoic acid derivative using a fermentation process, in which (I) the aminobenzoic acid formed in the fermentation broth obtained by the fermentation is bound in part, or as much as possible based on the solubility equilibrium, as insoluble calcium-aminobenzoate, said insoluble calcium-aminobenzoate is then (II) either isolated as such or in a mixture with the microorganism used in the fermentation and transitioned into a water soluble form, while separating an insoluble calcium salt which is different from the calcium-aminobenzoate, and then (III) by introducing carbon dioxide under pressure into the aqueous solution from the precipitated calcium salt has been released, aminobenzoic acid is precipitated.

IPC Classes  ?

• C12P 13/00 - Preparation of nitrogen-containing organic compounds
• C12N 1/20 - BacteriaCulture media therefor
• C12N 1/32 - Processes using, or culture media containing, lower alkanols, i.e. C1 to C6
• C12N 9/10 - Transferases (2.)
• C12N 15/77 - Vectors or expression systems specially adapted for prokaryotic hosts other than E. coli, e.g. Lactobacillus, Micromonospora for CorynebacteriumVectors or expression systems specially adapted for prokaryotic hosts other than E. coli, e.g. Lactobacillus, Micromonospora for Brevibacterium

Abstract

Provided is an aqueous polyurethane resin composition which is excellent in finished appearance as well as excellent in impact resistance, such as chipping resistance, and adhesion. The aqueous polyurethane resin composition includes a polyurethane resin obtained from at least (a) at least two types of organic diisocyanate compounds and/or polyisocyanate compounds which are different from each other; (b) a polyol compound; (c) acidic group- containing compounds comprising at least two types of compounds which are a compound containing a carboxyl group as the acid group (a carboxyl group-containing compound) and a compound containing a sulfo group as the acid group (a sulfo group-containing compound); and (d) a chain extender of a polyamine compound, a diamine compound, a polyol compound and/or an alkanolamine compound with a molecular weight of not more than 400, in which the aqueous polyurethane resin composition has a viscosity of not less than 500 Pa·s and not more than 50,000 Pa·s when the polyurethane resin is contained in an amount of 65% by weight.

IPC Classes  ?

• C08G 18/08 - Processes
• C08G 18/12 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
• C08G 18/30 - Low-molecular-weight compounds
• C08G 18/32 - Polyhydroxy compoundsPolyaminesHydroxy amines
• C08G 18/48 - Polyethers
• C08G 18/66 - Compounds of groups , , or
• C08G 18/72 - Polyisocyanates or polyisothiocyanates
• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
• C08G 18/75 - Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
• C09D 175/08 - Polyurethanes from polyethers
• C08G 18/34 - Carboxylic acidsEsters thereof with monohydroxyl compounds
• C08G 18/38 - Low-molecular-weight compounds having hetero atoms other than oxygen

Abstract

To provide a composition capable of forming a polyurethane foam having excellent filling properties, surface properties, and strength. A polyurethane resin composition containing a polyol component and a polyisocyanate component, in which the polyurethane resin composition contains a compound (A) as the polyol component or a component other than the polyol component, the compound (A) has a molecular weight of 220 or less, has two or more reactive groups capable of reacting with an isocyanate in one molecule, and has one reactive group with a reaction activity with an isocyanate group that is higher than the reaction activity with an isocyanate group of the other reactive groups of compound (A), and the ratio of the hydroxyl value of the compound (A) to the hydroxyl value of the polyol component is 1.2 or more, provided that when the compound (A) falls under the polyol component, the phrase "the hydroxyl value of the polyol component" refers to the hydroxyl value of the polyol component other than the compound (A).

IPC Classes  ?

• C08G 18/16 - Catalysts
• C08G 18/18 - Catalysts containing secondary or tertiary amines or salts thereof
• C08G 18/22 - Catalysts containing metal compounds
• C08G 18/32 - Polyhydroxy compoundsPolyaminesHydroxy amines
• C08G 18/38 - Low-molecular-weight compounds having hetero atoms other than oxygen
• C08G 18/40 - High-molecular-weight compounds
• C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain
• C08G 18/48 - Polyethers
• C08G 18/66 - Compounds of groups , , or
• C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
• C08J 9/00 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof
• C08J 9/12 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
• C08J 9/14 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
• C08K 5/00 - Use of organic ingredients
• C08G 101/00 - Manufacture of cellular products

Abstract

[Problem] The present invention provides a composition which is capable of forming a polyurethane foam having a high hardness and excellent sound absorption properties. [Solution] The present invention relates to a composition for forming polyurethane foam characterized in that the composition for forming polyurethane foam comprises a polyol, a polyisocyanate, and a catalyst, in which the polyol comprises a polyol (A) having a number average molecular weight of 1500 to 8000 g/mol, the catalyst comprises a trimerization catalyst, in which the polyurethane foam has an air permeability of not less than 0.1 L/sec.

IPC Classes  ?

• C08G 18/16 - Catalysts
• C08G 18/18 - Catalysts containing secondary or tertiary amines or salts thereof
• C08G 18/20 - Heterocyclic aminesSalts thereof
• C08G 18/22 - Catalysts containing metal compounds
• C08G 18/48 - Polyethers
• C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
• C08G 18/79 - Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
• C08J 9/00 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof
• C08J 9/12 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
• C08G 101/00 - Manufacture of cellular products

Abstract

To provide a composition capable of forming a rigid polyurethane foam having air permeability. A composition for forming a rigid polyurethane foam, the composition containing a polyol component, a polyisocyanate component, and an oil having no hydrophilic group in its molecule.

IPC Classes  ?

• C08G 18/09 - Processes comprising oligomerisation of isocyanates or isothiocyanates involving reaction of a part of the isocyanate or isothiocyanate groups with each other in the reaction mixture
• C08G 18/16 - Catalysts
• C08G 18/22 - Catalysts containing metal compounds
• C08G 18/32 - Polyhydroxy compoundsPolyaminesHydroxy amines
• C08G 18/48 - Polyethers
• C08G 18/50 - Polyethers having hetero atoms other than oxygen
• C08G 18/66 - Compounds of groups , , or
• C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
• C08L 75/08 - Polyurethanes from polyethers
• C08L 91/00 - Compositions of oils, fats or waxesCompositions of derivatives thereof
• C08L 83/04 - Polysiloxanes
• C08G 18/08 - Processes
• C08G 101/00 - Manufacture of cellular products

Abstract

23410232484103392341022). According to the invention, the total amount of reinforcing filler is 3 to 20 wt.%, preferably 4.5 to 15 wt.%, each relative to the total mass of the molding compound, the molding compound having improved properties being produced using at least one master batch produced according to the invention.

IPC Classes  ?

• C08K 3/013 - Fillers, pigments or reinforcing additives
• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08J 3/22 - Compounding polymers with additives, e.g. colouring using masterbatch techniques

Abstract

23410232484103392341022). The content of the reinforcing filler is 30 to 70 wt.%, preferably 35 to 65 wt.%, particularly 40 to 60 wt.%, relative to the total weight of the molding compound. The invention further relates to a method for producing a molding compound having improved properties.

IPC Classes  ?

• C08K 3/013 - Fillers, pigments or reinforcing additives
• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08J 3/22 - Compounding polymers with additives, e.g. colouring using masterbatch techniques

Abstract

The invention relates to a thermoplastic moulding composition comprising A) at least one thermoplastic polyurethane polymer obtainable by reacting at least the following constituent components: I) one or more aliphatic diisocyanates having a molecular weight of between 140 g/mol to 170 g/mol and II) one or more aliphatic diols having a molecular weight of between 62 g/mol to 120 g/mol, the constituent components used to produce the thermoplastic polyurethane polymer consisting of at least 95 % by weight of one or more aliphatic diisocyanates I) and one or more aliphatic diols II), based on the total mass of the constituent components used, wherein the one or more aliphatic diisocyanates I) and the one or more aliphatic diols II) are present in a molar ratio in the range from 1.0: 0.95 to 0.95: 1.0, characterized in that the ratio (I) of the thermoplastic polyurethane polymer is in a range from 2.3 to 6, wherein (II) is the molar mass centrifugal agent and (III) is the molar mass average, in each case determined by gel permeation chromatography in hexafluoroisopropanol against polymethyl methacrylate as standard, also comprising B) at least one mould release agent. The invention also relates to the use of the moulding composition for producing mouldings and to the mouldings thereof

IPC Classes  ?

• C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
• C08G 18/32 - Polyhydroxy compoundsPolyaminesHydroxy amines
• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
• C08G 18/08 - Processes

Abstract

The invention relates to a device and a method for the continuous production of particulate thermoplastic polymers (P) by reacting at least two copolymerizable monomers (A, B) in a spray reactor (1), where the at least two copolymerizable monomers (A, B) are mixed with one another via a mixing means (2) assigned to the spray reactor (1) and this reaction mixture (RM) is introduced continuously via a reaction mixture feed line (3, 3a, 3b) into the top of the spray reactor (1), where it is sprayed by a spraying means (5) into the reaction space (6) and flows in the direction of the base region (7) of the spray reactor (1), where the particulate thermoplastic polymer (P) is taken off via a product discharge line (8), where via a carrier gas feed line (9) provided in the top region (4) of the spray reactor (1) a carrier gas (G) heated via a heat exchanger (10) assigned to the carrier gas feed line (9) is introduced into the spray reactor (1) and is discharged above the base region (7) of the spray reactor (1) via a carrier gas offtake (11), the method being characterized in that the at least two copolymerizable monomers (A, B) are reacted to give the thermoplastic polymer in a reaction zone (12) extending from the top region (4) of the spray reactor (1) to a cooling fluid introduction means (14) disposed above the base region (7) and the polymer is held above its melting point and then cooled down below its solidification temperature in a cooling zone (13) extending from the cooling fluid introduction means (14) to the base region (7) of the spray reactor (1), to give the particulate thermoplastic polymer (P). The invention further relates to a particulate thermoplastic polymer produced or producible according to the method of the invention.

IPC Classes  ?

• B01J 2/04 - Processes or devices for granulating materials, in generalRendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops in a gaseous medium
• B01J 19/26 - Nozzle-type reactors, i.e. the distribution of the initial reactants within the reactor is effected by their introduction or injection through nozzles
• C08J 3/12 - Powdering or granulating
• C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step

Abstract

The invention relates to a method for producing a thermoplastic polyurethane from an OH-functional prepolymer and an isocyanate using a reactive extrusion process, having the steps of: a) introducing a prepolymer stream containing OH-functional prepolymers into an extruder, b) introducing an isocyanate feed stream into the extruder downstream of the introduction point of the prepolymer stream in an extruder working direction, said introduction process being carried out such that the OH-functional prepolymers contained in the prepolymer stream and the polyisocyanate contained in the isocyanate feed stream are in an isocyanate index of 85 to 105, and c) reacting the prepolymer stream with the isocyanate feed stream in the extruder, thereby obtaining the thermoplastic polyurethane as the extrudate, wherein gases and/or gaseous byproducts of the reaction are removed from the extruder by applying a negative pressure of 50 to 700 mbar below normal pressure by means of a degassing shaft arranged on the extruder, and the degassing shaft is positioned downstream of the introduction point of the isocyanate feed stream and in the last third of the extruder in the extruder working direction. Additionally, the invention relates to a device for carrying out the method according to the invention, to a thermoplastic polyurethane which can be obtained or is obtained using the method according to the invention, and to the use of the thermoplastic polyurethane in a shaping method, thereby melting the thermoplastic polyurethane, in particular in order to produce interior components for vehicles.

IPC Classes  ?

• B29B 7/84 - Venting or degassing
• B29C 48/29 - Feeding the extrusion material to the extruder in liquid form
• B29C 48/76 - Venting meansDegassing means
• B29C 48/92 - Measuring, controlling or regulating
• B29C 67/24 - Shaping techniques not covered by groups , or characterised by the choice of material

Abstract

The invention relates to a process for continuous solvent-free preparation of hydroxy-terminated prepolymers by reaction of one or more monomeric diisocyanates with one or more polyols having a hydroxyl number of 600 mg KOH/g to 1830 mg KOH/g determined in accordance with DIN EN ISO 4629-2:2016 in a reaction zone which comprises one or more tubular reactors connected in series and having continuous flow therethrough.

IPC Classes  ?

• C08G 18/08 - Processes
• C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
• C08G 18/32 - Polyhydroxy compoundsPolyaminesHydroxy amines
• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic

Abstract

The invention relates to a method for adjusting the molecular weight distribution of a polymer in a preferably predominantly irreversible polycondensation reaction and/or polyaddition reaction of the type AA+BB. The invention further relates to the polymer, which is obtained by the method according to the invention, and to the further reaction of this polymer by dosing further monomers. Moreover, the invention relates to a device for carrying out the method according to the invention.

IPC Classes  ?

• C08G 18/32 - Polyhydroxy compoundsPolyaminesHydroxy amines
• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
• C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
• C08G 18/08 - Processes

Abstract

The invention relates to a thermoplastic polyurethane obtainable by reacting at least the following synthesis components: one or more aliphatic diisocyanates A) having a molecular weight of 140 g/mol to 170 g/mol and one or more aliphatic diols B) having a molecular weight of 62 g/mol to 120 g/mol, where the synthesis components used to produce the thermoplastic polyurethane consist of at least 95 wt% of one or more aliphatic diisocyanates A) and one or more aliphatic diols B), based on the total mass of the synthesis components used, with the one or more aliphatic diisocyanates A) and the one or more aliphatic diols B) being used in a molar ratio in the range from 1.0: 0.95 to 0.95: 1.0, characterized in that the ratio (formula I) of the thermoplastic polyurethane lies in a range from 3 to 15, and also to a method for producing the thermoplastic polyurethane and compositions, mouldings, films and/or fibres comprising the thermoplastic polyurethane.

IPC Classes  ?

• C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
• C08G 18/32 - Polyhydroxy compoundsPolyaminesHydroxy amines
• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
• C08G 18/08 - Processes

Abstract

The invention relates to a thermoplastic polyurethane that is the reaction product of one or more diols with one or more aliphatic, cycloaliphatic and/or ar aliphatic diisocyanates, where the reaction product has a urethane group weight content of greater than 42 % and its weight average molecular weight increases when heated. Methods for its use are also disclosed herein where the reaction product is heated inside a extruder, and the weight average molecular weight increases therein.

IPC Classes  ?

• C08G 18/08 - Processes
• C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
• C08G 18/32 - Polyhydroxy compoundsPolyaminesHydroxy amines
• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic

Abstract

The present invention relates to a process for continuous production of thermoplastic polyurethane by reacting the components (A) one or more cycloaliphatic, aliphatic and/or araliphatic polyisocyanates and (B) one or more cycloaliphatic, aliphatic and/or araliphatic polyols, where the entirety of component (B) has a hydroxyl number of 600 mg KOH/g to 1830 mg KOH/g as determined according to DIN EN ISO 4629-2:2016. The process comprises the steps of: a) preparing a mixture of a portion of component (A), a portion or the entirety of component (B) and optionally a portion or the entirety of component (C), where in process step a) there is a molar ratio of component (A) to component (B) in the range from 0.6: 1.0 to 0.95: 1.0; b) mixing the mixture prepared in process step a) with an outgoing oligomerisate substream obtained from process step e); c) reacting the mixture from process step b); d) dividing the reaction mixture obtained in step c) into two outgoing substreams; e) recycling one outgoing substream from process step d) as an incoming substream for the mixture in process step b); f) mixing the remainder of component (A) and where present the remainder of components (B) and (C) with the remaining outgoing substream of process step d); and g) reacting the mixture obtained in process step f) to give a thermoplastic polyurethane. The invention further relates to thermoplastic polyurethane obtainable or obtained by the process of the invention, and also to a composition comprising the thermoplastic polyurethane of the invention and to the use thereof.

IPC Classes  ?

• C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
• C08G 18/32 - Polyhydroxy compoundsPolyaminesHydroxy amines
• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
• C08G 18/08 - Processes

Abstract

wPolymerww of the thermoplastic aliphatic polyurethane polymer. The invention also relates to compositions containing such polyurethane polymers, to a process for the preparation thereof and to the use of such polyurethane polymers.

IPC Classes  ?

• C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
• C08G 18/32 - Polyhydroxy compoundsPolyaminesHydroxy amines
• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
• C08G 18/08 - Processes

Abstract

The present invention relates to a method for producing a thermoplastic polyurethane with a low colour number, as well as to the thermoplastic polyurethane obtained according to said method and to the use thereof.

IPC Classes  ?

• C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
• C08G 18/32 - Polyhydroxy compoundsPolyaminesHydroxy amines
• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
• C08G 18/08 - Processes

Abstract

The invention relates to a thermoplastic polyurethane obtained by reacting at least the following structural components: one or more aliphatic diisocyanates A) with a molecular weight of 140 g/mol to 170 g/mol; and one or more aliphatic diols B) with a molecular weight of 62 g/mol to 120 g/mol; wherein up to at least 95 wt.% of the structural components used to create the thermoplastic polyurethane consist of one or more aliphatic diisocyanates A) and one or more aliphatic diols B), in relation to the total mass of the structural components used, wherein the one or more aliphatic diisocyanates A) and the one or more aliphatic diols B) are used in a molar ratio of 1.0 : 0.95 to 0.95 : 1.0, characterised in that the ratio (I) of the thermoplastic polyurethane polymer is in the region of 10 to 40. The invention also relates to a method for the production thereof, compositions, moulded bodies, films and/or fibres containing the thermoplastic polyurethane.

IPC Classes  ?

• C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
• C08G 18/32 - Polyhydroxy compoundsPolyaminesHydroxy amines
• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
• C08G 18/08 - Processes

Abstract

The present invention relates to a process for preparing polyoxyalkylene polyester polyols by reacting a starter compound having Zerewitnoff-active H atoms, a cyclic dicarboxylic acid anhydride and a fatty acid ester with an alkylene oxide in the presence of a basic catalyst. The invention further relates to polyoxyalkylene polyester polyols resulting from the method and to a preparation method for polyurethanes by reaction of the polyoxyalkylene polyester polyols according to the invention.

IPC Classes  ?

• C08G 65/26 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
• C08G 65/332 - Polymers modified by chemical after-treatment with organic compounds containing oxygen containing carboxyl groups, or halides or esters thereof
• C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain
• C08G 18/48 - Polyethers
• C08G 101/00 - Manufacture of cellular products
• C09D 175/04 - Polyurethanes
• C08G 63/672 - Dicarboxylic acids and dihydroxy compounds
• C08G 63/48 - Polyesters chemically modified by esterification by unsaturated higher fatty oils or their acidsPolyesters chemically modified by esterification by resin acids

Abstract

A method for producing an object comprises the step of producing the object by means of an additive manufacturing process from a construction material. The construction material comprises a first polyurethane polymer which has: a weight percentage ratio of O to N of ≥ 2 to ≤ 2.5, determined by elementary analysis; a weight percentage ratio of N to C of ≥ 0.1 to ≤ 0.25, determined by elementary analysis; a full-width at half maximum of the melting peak of ≤ 20 K, determined by dynamic differential scanning calorimetry DSC (2nd heating at heating rate 20 K/min); and a difference between the melting temperature and the recrystallisation temperature of ≥ 5 K and ≤ 100 K, determined by dynamic differential scanning calorimetry DSC (2nd heating) at a heating and cooling rate of 20 K/min.

IPC Classes  ?

• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
• C08G 18/32 - Polyhydroxy compoundsPolyaminesHydroxy amines
• B29C 64/118 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]

Abstract

The invention relates to a method for producing polyurethane foams by reacting the following components: A polyol components, containing A1 40 to 100 parts by weight of polyether carbonate polyol with a hydroxyl number according to DIN 53240-1 (June 2013) of 20 mg KOH/g to 120 mg KOH/g, A2 0 to 60 parts by weight of polyether polyol with a hydroxyl number according to DIN 53240-1 (June 2013) of 20 mg KOH/g to 250 mg KOH/g, and an ethylene oxide content of 0 to 60 wt.%, wherein polyether polyol A2 is free of carbonate units; B B1 a catalyst, and B2 optionally auxiliary and additional substances; C water and/or physical blowing agents, with D di- and/or polyisocyanates, wherein the production occurs at a characteristic value of 90 to 120, characterised in that the production occurs in the presence of 0.01 to 10.00 parts by weight of a component K, in relation to the total of the parts by weight of the component A1 + A2 = 100 parts by weight, and the component K is a compound according to formula (II), wherein R1= represents a substituted or unsubstituted C1-C22 alkyl group which can optionally be interrupted by heteroatoms, a substituted or unsubstituted C1-C22 alkenyl group which can optionally be interrupted by heteroatoms, a substituted or unsubstituted C1-C22 alkoxy group which can optionally be interrupted by heteroatoms, a substituted or unsubstituted C6-C18 aryl group, a substituted or unsubstituted C6-C18 aryloxy group, heteroaryl group, thiols, phosphorous compounds, carboxylates, isocyanates, amines, carbamines, amides or carbamides, R2= can be the same or different and represents a substituted or unsubstituted C1-C22 alkyl group which can optionally be interrupted by heteroatoms, a substituted or unsubstituted C1-C22 alkenyl group which can optionally be interrupted by heteroatoms, a substituted or unsubstituted C1-C22 alkoxy group which can optionally be interrupted by heteroatoms, a substituted or unsubstituted C6-C18 aryl group, a substituted or unsubstituted C6-C18 aryloxy group, and X = can be the same or different and represents F, Cl, Br or I.

IPC Classes  ?

• C08G 18/44 - Polycarbonates
• C08G 18/16 - Catalysts
• C08G 18/18 - Catalysts containing secondary or tertiary amines or salts thereof
• C08G 18/24 - Catalysts containing metal compounds of tin
• C08G 18/40 - High-molecular-weight compounds
• C08G 18/48 - Polyethers
• C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
• C08J 9/00 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof
• C08J 9/12 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
• C08G 101/00 - Manufacture of cellular products

Abstract

22020 segment which is substituted by a hydroxyl group in the 2 position to the charge-bearing nitrogen atom and optionally bears further substituents and is optionally interrupted by heteroatoms from the group of oxygen, sulfur, nitrogen and aromatic rings and optionally has further rings, and the N-bonded substituents R1and R212062072020 radicals or the N-bonded substituents R1and R2 form a ring segment X with one another for which the same or different definition given above for Y is applicable, with the proviso that X has a hydroxyl group as substituent in the 2 position to the charge-bearing nitrogen atom or does not have a hydroxyl group as substituent in the 2 position to the charge-bearing nitrogen atom.

IPC Classes  ?

• C08G 18/02 - Polymeric products of isocyanates or isothiocyanates of isocyanates or isothiocyanates only
• C08G 18/20 - Heterocyclic aminesSalts thereof
• C08G 18/79 - Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates

Abstract

The present invention relates to a method of preparing an apparatus (or a plant comprising multiple apparatuses), for example a heat exchanger, an evaporator or a distillation column, for use in a process (especially one operated continuously) for concentration of a mineral acid by evaporating water, wherein the apparatus or plant comprises (at least) one device resistant to the mineral acid and the device is rinsed with an aqueous alkali metal hydroxide solution of a concentration by mass of alkali metal hydroxide in the range from 1% to 30% at a temperature in the range from 40°C to 90°C for a period of 2 hours to 7 days.

IPC Classes  ?

• C01B 17/88 - Concentration of sulfuric acid
• C01B 17/90 - SeparationPurification
• C01B 21/44 - Concentration
• C01B 21/46 - PurificationSeparation
• F25B 47/00 - Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
• F28F 19/02 - Preventing the formation of deposits or corrosion, e.g. by using filters by using coatings, e.g. vitreous or enamel coatings
• F28G 9/00 - Cleaning by flushing or washing, e.g. with chemical solvents

Abstract

The invention relates to carbon fiber-containing polycarbonate compositions, the flowability of which is significantly improved by adding epoxidized triacylglycerols, for example as a constituent of epoxidized soy bean oil. In addition to the very high flowability, the compositions according to the invention have a high rigidity.

IPC Classes  ?

• C08K 5/1515 - Three-membered rings
• C08K 5/42 - Sulfonic acidsDerivatives thereof
• C08K 7/06 - Elements
• C08K 7/14 - Glass

Abstract

The invention relates to a multi-stage process for the continuous preparation of thermoplastic polyurethanes by reacting one or more aliphatic, cycloaliphatic and/or araliphatic diols with one or more aliphatic, cycloaliphatic and/or araliphatic diisocyanates, wherein the total reaction enthalpy is ≤ -500 kJ/kg over all the process stages at a molar ratio of diol to diisocyanate of 1.0:1.0.

IPC Classes  ?

• C08G 18/08 - Processes
• C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
• C08G 18/32 - Polyhydroxy compoundsPolyaminesHydroxy amines
• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic

Abstract

The invention relates to a thermoplastic polyurethane obtainable by reacting at least the following constituent components: one or more aliphatic diisocyanates A) having a molecular weight of between 140 g/mol to 170 g/mol and one or more aliphatic diols B) having a molecular weight of between 62 g/mol to 120 g/mol, the constituent components used to produce the thermoplastic polyurethane consisting of at least 95% by weight of one or more aliphatic diisocyanates A) and one or more aliphatic diols B), based on the total mass of the constituent components used, the one or more aliphatic diisocyanates A) and the one or more aliphatic diols B) being present in a molar ratio in the range from 1.0 0.95 to 0.95 : 1.0, characterized in that the ratio (formula (I)) of the thermoplastic polyurethane polymer is in a range of between 2.3 to 6. The invention also relates to a process for the preparation thereof, to the compositions, mouldings, films and/or fibres containing the thermoplastic polyurethane.

IPC Classes  ?

• C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
• C08G 18/32 - Polyhydroxy compoundsPolyaminesHydroxy amines
• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
• C08G 18/08 - Processes

Abstract

The invention relates to a method for producing a thermoplastic polyurethane from an OH-functional prepolymer and an isocyanate using a reactive extrusion process. Additionally, the invention relates to a device for carrying out the method according to the invention, to a thermoplastic polyurethane which can be obtained or is obtained using the method according to the invention, and to the use of the thermoplastic polyurethane in a shaping method, thereby melting the thermoplastic polyurethane, in particular in order to produce interior components for vehicles.

IPC Classes  ?

• B01J 19/20 - Stationary reactors having moving elements inside in the form of helices, e.g. screw reactors
• B29B 7/84 - Venting or degassing
• B29C 48/29 - Feeding the extrusion material to the extruder in liquid form
• B29C 48/76 - Venting meansDegassing means
• B29C 48/92 - Measuring, controlling or regulating
• B29C 67/24 - Shaping techniques not covered by groups , or characterised by the choice of material
• C08G 18/08 - Processes
• C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step

Abstract

The invention relates to a method for continuously producing hydroxy-terminated prepolymers by reacting the components (A), one or more cycloaliphatic, aliphatic, and/or araliphatic polyisocyanates, and (B), one or more cycloaliphatic, aliphatic, and/or araliphatic polyols, wherein the total quantity of the component (B) has a hydroxyl value of 600 mg KOH/g to 1830 mg KOH/g determined in accordance with DIN EN ISO 4629-2:2016. The method has the steps of: a) producing a mixture of the component (A) and the component (B); b) mixing the mixture produced in step a) with a prepolymer outlet sub-stream obtained from step e); c) reacting the mixture from step b); d) dividing the reaction mixture obtained in step c) into two outlet sub-streams, and e) removing the remaining outlet sub-stream of step d) containing the hydroxy-terminated prepolymers. The invention additionally relates to hydroxy-terminated prepolymers which are obtained or can be obtained using the method according to the invention, to a composition containing the hydroxy-terminated prepolymers, and to the use thereof.

IPC Classes  ?

• C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
• C08G 18/32 - Polyhydroxy compoundsPolyaminesHydroxy amines
• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
• C08G 18/08 - Processes

Abstract

The invention relates to a multi-step method for continuously producing thermoplastic semi-crystalline polyurethanes by reacting one or more aliphatic, cycloaliphatic and/or araliphatic diols with one or more aliphatic, cycloaliphatic and/or araliphatic diisocyanates, wherein the total enthalpy of reaction over all the method steps is ≤ -500 kJ/kg, with a molar ratio of diol to diisocyanate of 1.0 : 1.0.

IPC Classes  ?

• C08G 18/08 - Processes
• C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
• C08G 18/32 - Polyhydroxy compoundsPolyaminesHydroxy amines
• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic

Abstract

The present invention relates to a method for producing a thermoplastic polyurethane having improved, lower melt elasticity. The method comprises the method steps: a) producing a mixture of a partial quantity of hexamethylene diisocyanate and the total quantity of butanediol; b) mixing the mixture produced in method step a) with an oligomerisate output partial flow obtained from method step e); bringing the mixture from method step b) to reaction; d) subdividing the reaction mixture obtained in step c) into two output partial flows; e) returning an output partial flow from method step d) as an input partial flow for the mixture in method step b); f) mixing the remaining quantity of hexamethylene diisocyanate with the remaining output partial flow from method step d); and g) allowing the mixture obtained in method step f) to react in order to obtain a thermoplastic polyurethane. The invention also relates to a thermoplastic polyurethane which is obtainable by reacting 1,6-hexamethylene diisocyanate (HDI) with 1,4-butanediol (BDO), wherein the polyurethane has, at a complex module G* of 104 Pa, a phase angle of greater than or equal to 65° and less than or equal to 75°, determined according to ISO 6721-10:2015.

IPC Classes  ?

• C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
• C08G 18/32 - Polyhydroxy compoundsPolyaminesHydroxy amines
• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
• C08G 18/08 - Processes

Abstract

zwwnn ranges from 4 to 10. The invention also relates to a method and a device for producing said prepolymers.

IPC Classes  ?

• C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
• C08G 18/32 - Polyhydroxy compoundsPolyaminesHydroxy amines
• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
• C08G 18/08 - Processes

Abstract

The invention relates to a method for producing a thermoplastic polyurethane (G) using a reactive extrusion process, having the steps of: a) mixing a polyisocyanate stream (A) and a polyol stream (B) in a first mixing device (7) such that a mixture stream (C) is obtained, the mass flow rates of the polyisocyanate stream (A) and the polyol stream (B) being set such that the isocyanate index in the mixture stream (C) ranges from 55 to 85, b) introducing the mixture stream (C) into a circulating stream (D) which is conducted in a circular flow, the monomers of the polyisocyanates stream (A) and the polyol stream (B) in the circulating stream (D) being further reacted into OH-functional pre-polymers, c) separating a sub-stream from the circulating stream (D) as a prepolymer stream (E) and introducing same into an extruder (18), d) introducing an isocyanate feed stream (F) into the extruder (18) downstream of the introduction point of the prepolymer stream (E) in the extruder working direction, wherein the introduction process is carried out such that the OH-functional prepolymers contained in the prepolymer stream (E) and the polyisocyanate contained in the isocyanate feed stream (F) are in an isocyanate index of 85 to 120, and e) reacting the prepolymer stream (E) with the isocyanate feed stream (F) in the extruder (18), thereby obtaining the thermoplastic polyurethane (G) as the extrudate.

IPC Classes  ?

• C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
• C08G 18/32 - Polyhydroxy compoundsPolyaminesHydroxy amines
• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
• C08G 18/08 - Processes

Abstract

χχ in the range from 10 % to 51 %, to compositions containing such polyurethane polymers, to a method for the production thereof and to the use of said polyurethane polymers.

IPC Classes  ?

• C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
• C08G 18/32 - Polyhydroxy compoundsPolyaminesHydroxy amines
• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
• C08G 18/08 - Processes

Abstract

The present invention relates to thermoplastic aliphatic polyurethane prepolymers the proportion (formula I) of which is in a range of 2.3 to 6 and which have a degree of crystallinity χ in the range of 10% to 55%, to compositions containing such polyurethane prepolymers, to a process for preparing same and to the use of these polyurethane prepolymers.

IPC Classes  ?

• C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
• C08G 18/32 - Polyhydroxy compoundsPolyaminesHydroxy amines
• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
• C08G 18/08 - Processes

Abstract

The present invention relates to hydroxy-terminated polyurethane prepolymers at least 90 wt.% of which consist of the reaction product of the reaction of 1,6-hexamethylene diisocyanate with 1,4-butandiol and which have an allophanate content of ≤ 1.00 mole %, to a process for preparing same, to compositions containing such polyurethane prepolymers and to the use of these polyurethane prepolymers.

IPC Classes  ?

• C08G 18/32 - Polyhydroxy compoundsPolyaminesHydroxy amines
• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
• C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
• C08G 18/08 - Processes

Abstract

The present invention relates to a method for producing a thermoplastic polyurethane, as well as the thermoplastic polyurethane obtained according to said method and to a device for the production thereof.

IPC Classes  ?

• C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
• C08G 18/32 - Polyhydroxy compoundsPolyaminesHydroxy amines
• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
• C08G 18/08 - Processes

Abstract

The present invention relates to a method for producing a polyoxymethylene polyoxyalkylene copolymer, comprising reacting a polymer formaldehyde compound with an alkylene oxide in the presence of a double metal cyanide (DMC) catalyst, wherein the polymer formaldehyde compound comprises at least one terminal hydroxyl group and wherein the method comprises the steps of placing a suspending agent in a reactor and subsequently incrementally or continuously metering in the polymer formaldehyde compound into the reactor during the reaction.

IPC Classes  ?

• C08G 2/08 - Polymerisation of formaldehyde
• C08G 2/22 - Copolymerisation of aldehydes or ketones with epoxy compounds
• C08G 2/06 - Catalysts

Abstract

The present invention relates to a method for producing an aliphatic polyester carbonate, the polyester carbonate itself, and to moulding compositions and moulded articles containing the polyester carbonate. The claimed method is characterised in particular in that the method comprises three steps and the last step is a melt transesterification method in the presence of two catalysts.

IPC Classes  ?

• C08G 63/64 - Polyesters containing both carboxylic ester groups and carbonate groups
• C08G 63/78 - Preparation processes
• C08G 63/83 - Alkali metals, alkaline earth metals, beryllium, magnesium, copper, silver, gold, zinc, cadmium, mercury, manganese, or compounds thereof
• C08G 63/87 - Non-metals or inter-compounds thereof

Abstract

The present invention relates to a process for preparing a polyester carbonate on the basis of aliphatic diacids and aliphatic diols and to the polyester carbonate prepared according to the process and to a moulding mass and moulding body containing the polyester carbonate. The process according to the invention is a direct synthesis in which all structural elements forming the subsequent polyester carbonate are already present as monomers in the first process step and in which two catalysts are used.

IPC Classes  ?

• C08G 63/64 - Polyesters containing both carboxylic ester groups and carbonate groups
• C08G 63/78 - Preparation processes
• C08G 63/83 - Alkali metals, alkaline earth metals, beryllium, magnesium, copper, silver, gold, zinc, cadmium, mercury, manganese, or compounds thereof