Abstract

Method for reducing the concentration of nitrogen oxides in waste gases released during the production of organic amino compounds, wherein an organic compound is first reacted with NOx and/or nitric acid to form an organic nitro compound with the formation of an NOx-containing waste gas stream and the organic nitro compound is converted to the organic amino compound by means of a hydrogen-containing reaction gas, the reaction of the organic nitro compound with the hydrogen-containing reduction gas taking place with the formation of a hydrogen-containing waste gas stream, the method being characterised in that the NOx-containing waste gas stream (1) is combined with the hydrogen-containing waste gas stream and/or an externally supplied hydrogen stream (3) and is reacted at a temperature of 800 to 1700°C for the at least partial reduction of the NOxconcentration. An apparatus for carrying out the method is also described.

IPC Classes  ?

• C07C 209/34 - Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds by reduction of nitro groups by reduction of nitro groups bound to acyclic carbon atoms or to carbon atoms of rings other than six-membered aromatic rings

Abstract

The present invention provides a composition comprising a polycarbonate, and infrared (IR) reflective additive and an epoxy-functional silicone, wherein the composition exhibits a reduced melt flow change over a comparable compound not containing an epoxy-functional silicone.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08L 83/06 - Polysiloxanes containing silicon bound to oxygen-containing groups
• C08K 3/00 - Use of inorganic substances as compounding ingredients
• G02B 1/00 - Optical elements characterised by the material of which they are madeOptical coatings for optical elements

Abstract

The present invention provides processes for filling gaps and voids generated or encountered in gas and oil drilling operations or for geo- stabifization with polychloroprene latex which has been coagulated in a controlled fashion. The inventive process involves at least partially filling a gap or cavity in the earth with polychloroprene latex which becomes coagulated after a specific amount of time by at least one curing agent selected from a polyisocyanate, a blocked polyisocyanate, an acid, a salt, and a gas.

IPC Classes  ?

• C08L 11/00 - Compositions of homopolymers or copolymers of chloroprene
• C09K 8/24 - Polymers
• E21F 15/00 - Methods or devices for placing filling-up materials in underground workings

Abstract

The present invention provides a polycarbonate composition which contains polycarbonate, a thermoplastic polyester, a graft copolymer, polylactic acid. The inventive composition exhibits low smoke generation.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08L 67/00 - Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chainCompositions of derivatives of such polymers
• C08L 51/04 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers grafted on to rubbers
• C08L 67/04 - Polyesters derived from hydroxy carboxylic acids, e.g. lactones
• C08K 3/38 - Boron-containing compounds

Abstract

The present invention provides a polycarbonate composition containing hydroxy aluminum hydroxide which exhibits increased gloss level. This effect is seen in polycarbonate blend or blends of polycarbonate and polyesters. This additive is effective in increasing the gloss level of polymer or polymer blend with gloss levels lower than 80 at 20 degree incident angle.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08L 33/04 - Homopolymers or copolymers of esters
• C08L 9/00 - Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
• C08L 83/04 - Polysiloxanes
• C08K 3/22 - OxidesHydroxides of metals

Abstract

The present invention provides a thermoplastic molding composition comprising A) 60 to 99 percent by weight (pbw) aromatic poly(ester) carbonate having a weight-average molecular weight of at least 25,000, B) 1 to 20 parts per 100 parts resin (phr) graft (co)polymer having a core-shell morphology, comprising a grafted shell that contains poliymerized alkyl(meth)acrylate and a composite rubber core that contains interpenetrated and inseparable polyorganosiloxane and poly(meth)alkyl acrylate where the weight ratio of polyorganosiloxane/poly(meth)alkylacrylate/ grafted shell is 70-90/5-15/5-15, C) 2 to 20 phr phosphorus-containing compound, and D) 0.1 to 15 phr boron compound having average particle diameter of 2 to 10 microns.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08L 51/04 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers grafted on to rubbers
• C08K 5/521 - Esters of phosphoric acids, e.g. of H3PO4
• C08K 3/38 - Boron-containing compounds

Abstract

This invention relates to novel double metal cyanide catalysts and to a process for the production of these double metal cyanide catalysts. These DMC catalysts can be used to prepare polyoxyalkylene polyols which have low amounts of high molecular weight tail compared polyoxyalkylene polyols prepared from DMC catalysts of the prior art.

IPC Classes  ?

• C08G 65/10 - Saturated oxiranes characterised by the catalysts used
• C08G 65/12 - Saturated oxiranes characterised by the catalysts used containing organo-metallic compounds or metal hydrides
• B01J 31/12 - Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing organo-metallic compounds or metal hydrides

Abstract

The present invention provides long chain, active polyether polyols which are characterized by a functionality of 2 to 6 and an equivalent weight of 1000 to 2200 Da. These long chain polyethers comprise the alkoxylation product of (1 ) a starter composition having an equivalent weight of 350 Da or less, with (2) one or more alkylene oxides, in which up to 20% of ethylene oxide may be added as a cap, in the presence of (3) at least one basic catalyst. Suitable starter compositions (1 ) comprise the alkoxylation product of (a) a low molecular weight polyether having a functionality of 3 and an equivalent weight of less than 350 Da, (b) at least one low molecular weight starter compound comprising glycerin, and (c) propylene oxide or a mixture of propylene oxide and ethylene oxide, in the presence of (d) at least one double metal cyanide catalyst. A process for preparing these long chain polyether polyols is also disclosed.

IPC Classes  ?

• C07C 43/10 - Saturated ethers of polyhydroxy compounds
• B01J 27/26 - Cyanides
• B01J 31/00 - Catalysts comprising hydrides, coordination complexes or organic compounds

Abstract

This invention relates to stable, low-viscosity polymer polyols and to a process for preparing these stable, low-viscosity polymer polyols, These polymer polyols comprise (a) a base polyol component that comprises a natural oil base polyol having a mean hydroxy I functionality of 1.7 to 5.0, a number average molecular weight of about 350 to about 725, and an OH number of 190 to 500.

IPC Classes  ?

• C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
• C08G 18/63 - Block or graft polymers obtained by polymerising compounds having carbon-to-carbon double bonds on to polymers
• C08G 18/06 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
• C08J 9/04 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent
• C08G 101/00 - Manufacture of cellular products

Abstract

Low molecular weight polyoxyalkylene polyether polyols having a hydroxy! content of from about 3.4 to about 12.1 % by weight, and OH numbers of from about 112 to about 400 are produced by a continuous process using a DMC catalyst. In the process of the present invention, oxyalky!ation conditions are established in a continuous reactor in the presence of a DMC catalyst; alkylene oxide and a low molecular weight starter are continuously introduced into the continuous reactor; a partially oxyalkylated polyether polyol is recovered from the reactor; and the recovered partially oxyalkylated polyether polyol is allowed to further reactor until the un reacted alkylene oxide content of the mixture is reduced to 0.001 % or less by weight. The alkoxylation of the present invention must be carried out a pressure sufficiently high to prevent deactivation of the DMC catalyst. Pressures of from 45 to 55 psia are preferred.

IPC Classes  ?

• C08G 65/10 - Saturated oxiranes characterised by the catalysts used
• 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 18/48 - Polyethers

Abstract

Flame-retardant polycarbonate compositions and methods for increasing the flame-retardancy of polycarbonate compositions are disclosed. A glass fiber, alumina particles, and wollastonite particles are added to polycarbonate compositions. The addition of the glass fiber, alumina particles, and wollastonite particles to the polycarbonate composition produces a polycarbonate composition having a flame-retardance rating of UL 94 5V-A at 2.3 mm thickness or less. The inventive compositions retain good surface quality.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08L 25/12 - Copolymers of styrene with unsaturated nitriles
• C08L 55/02 - ABS [Acrylonitrile-Butadiene-Styrene] polymers
• C08K 7/14 - Glass
• C08K 3/22 - OxidesHydroxides of metals
• C08K 3/34 - Silicon-containing compounds

Abstract

The present invention provides a hybrid two component coating composition comprising as component I, (A) an N-alkoxysilylalkyl-aspartic acid ester, (B) a polysiloxane having a molecular weight in the range of from about 400 to 10,000, and optionally (C) at least one hydrolyzable silane; and as component II, (D) a polyisocyanate having an average NCO functionality of 2.5 to 5.5 and an isocyanate content, based on solids, of 9 to 50 wt % and containing aliphatic polyisocyanates; and (E) a catalyst. Methods of making and applying the hybrid coating composition are also provided.

IPC Classes  ?

• C09D 183/04 - Polysiloxanes
• C09D 175/00 - Coating compositions based on polyureas or polyurethanesCoating compositions based on derivatives of such polymers

Abstract

The present invention provides a dual-cure composition containing multifunctional polyols, uretdiones, peroxide curable monomers containing unsatu ration and crosslinking agents. The dual-cure composition may be used to form a high modulus material useful as the matrix in a prepreg material and in composites. The present invention also relates to methods for the production of the dual-cure composition, prepreg materials comprising the dual-cure composition and a fibrous support, and composites made from the prepreg material.

IPC Classes  ?

• C08G 18/06 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
• C08F 290/06 - Polymers provided for in subclass
• C08F 265/00 - Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group
• C08G 59/62 - Alcohols or phenols
• C08J 3/24 - Crosslinking, e.g. vulcanising, of macromolecules

Abstract

Polyurethane elastomers having solids contents greater than 40% by weight are produced from a sprayable polyurethane-forming system composed of an isocyanate component and an isocyanate-reactive component. The isocyanate component has a solids content of from 40 to 80 wt. %, based on total weight of isocyanate component and is made up of at least one aromatic polyisocyanate having an NCO content of from 24 to 33%, a functionality of from 2 to 3 and at least one solid filler. The isocyanate-reactive component has a solids content of from 40 to 80 wt. %, based on total weight of the isocyanate-reactive component and is composed of at least one polyether polyol having a hydroxyl number of from 25 to 40 and a functionality of from 2 to 4, and at least one solid filler.

IPC Classes  ?

• C08G 18/70 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
• C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
• C08G 18/72 - Polyisocyanates or polyisothiocyanates
• C08L 75/04 - Polyurethanes
• C08K 3/10 - Metal compounds
• C08G 101/00 - Manufacture of cellular products

Abstract

This invention relates to a semi-batch process for the production of polyoxyalkylene polyether polyols. These polyoxyalkylene polyether polyols have hydroxy I (OH) numbers of from 112 to 400. This process comprises establishing oxyalkylation condition in a reactor in the presence of a DMC catalyst, continuously introducing alkylene oxide and a suitable starter into the reactor, and recovering an oxyalkyated polyether polyol. The oxyalkylation initially occurs at a temperature that is sufficiently high enough to avoid or prevent deactivation of the DMC catalyst, or for from 2% to 50% of the total oxide feed amount, and the oxyalkylation is then continued at a lower temperature.

IPC Classes  ?

• C08G 65/10 - Saturated oxiranes characterised by the catalysts used
• C08G 65/28 - Cyclic ethers and hydroxy compounds
• C08G 18/48 - Polyethers

Abstract

Two-component coating systems and compositions are disclosed. The coating compositions form crosslinked polyurea coatings and have relatively long pot life and set-to-touch time and a relatively short hard dry time. The coating compositions include a polyisocyanate, a polyaspartic ester, and a poiyetheraspartic ester.

IPC Classes  ?

• C08G 18/48 - Polyethers
• C08G 18/00 - Polymeric products of isocyanates or isothiocyanates
• C08G 18/72 - Polyisocyanates or polyisothiocyanates
• C08G 69/02 - Polyamides derived from amino carboxylic acids or from polyamines and polycarboxylic acids
• C08L 71/02 - Polyalkylene oxides

Abstract

Polymer polyols having a solids content of greater than 40 wt.%, a total ethylene oxide content of up to 25 wt.%, and a viscosity at 25°C of less than 15,000 centistokes are produced by reacting (1) a base polyol having active hydrogen atoms with an ethylene oxide content of from 15 to 40 wt.% that has been formed in the presence of a double metal cyanide (DMC) catalyst, (2) one or more unsaturated monomers, (3) at least one radical initiator, optionally (4) a preformed stabilizer and optionally (5) a chain transfer agent. These polymer polyols (PMPOs) are useful in the preparation of polyurethane foams and elastomers.

IPC Classes  ?

• C08G 18/67 - Unsaturated compounds having active hydrogen
• C08G 18/40 - High-molecular-weight compounds
• C08G 18/48 - Polyethers
• C08G 18/06 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
• C08G 101/00 - Manufacture of cellular products

Abstract

The present invention provides a polycarbonate blend which exhibits antimicrobial behavior while retaining excellent impact strength and color when aged at elevated temperature and humidity, even at significantly increased levels of antimicrobial additive. The compositions of the present invention are based on sliver sodium zirconium phosphate of the composition: NaxHyAgzZr2(PO4)3, where x+y+z=1.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08L 55/02 - ABS [Acrylonitrile-Butadiene-Styrene] polymers
• C08K 3/10 - Metal compounds
• C08K 3/32 - Phosphorus-containing compounds
• A01N 59/00 - Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
• A01N 59/26 - PhosphorusCompounds thereof

Abstract

This invention relates to coated polyurethane foams and to a process for preparing coated polyurethane foams. More specifically, these coated polyurethane foams comprise (a) a polyurethane foam substrate, and (b) at least one bilayer of a coating composition on the foam substrate which comprises (1 ) a layer of a positively or negatively charged carbon allotrope, and (2) a layer of a positively or negatively charged polymer. When the carbon allotrope is positively charged, the other material is negatively charged, and vice versa. The final product (i.e. coated polyurethane foam) contains at least 1% by weight of the coating composition, based on 100% by weight of the coated polyurethane foam. The foams described herein have a surface resistivity of less than or equal to 1012 ohms per square.

IPC Classes  ?

• C08J 9/36 - After-treatment
• C08J 7/04 - Coating
• C08K 3/04 - Carbon
• C08L 75/04 - Polyurethanes
• B05D 7/02 - Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber

Abstract

This invention relates to polybutadiene modified polymer polyols which comprise one or more base polyols, at least one preformed stabilizer, one or more ethylenically unsaturated monomers, and polybutadiene, in the presence of at least one free radical polymerization catalyst, and optionally, one or more chain transfer agents. The polybutadiene present in these polybutadiene modified polymer polyols may be carried into the polymer polyol through the preformed stabilizer, by a polybutadiene containing component that is added separately from the preformed stabilizer to the polymer polyol, or a combination thereof, with the total amount of polybutadiene ranging from 0.03 to 1.0% by weight of polybutadiene, based on 100% by weight of the polymer polyol. The present invention also relates to processes for preparing these polybutadiene modified polymer polyols, to foams prepared from these polybutadiene modified polymer polyols, and to processes for producing foams from these polybutadiene modified polymer polyols.

IPC Classes  ?

• C08G 65/48 - Polymers modified by chemical after-treatment
• C08G 18/48 - Polyethers
• C08F 8/00 - Chemical modification by after-treatment
• C08J 9/00 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof

Abstract

The present invention provides a flame-retardant thermoplastic molding composition made from an aromatic polycarbonate, an impact modifier, a bisphenol-A oligophosphate and glass fibers, wherein the ratio of polycarbonate to bisphenol-A oligophosphate is less than about 7.5, wherein the ratio of glass fibers to bisphenol-A oligophosphate is less than about 2.5, wherein the composition is rated V0 at 1.5 mm according to UL-94, and wherein the composition is free from halogenated flame retardants.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08K 5/49 - Phosphorus-containing compounds
• C08K 7/14 - Glass
• C08L 5/08 - ChitinChondroitin sulfateHyaluronic acidDerivatives thereof

Abstract

A high functionality macromer that is the reaction product of (1) a polyisocyanate having an NCO group content of about from about 10% to about 33% having a functionality greater than 2, (2) at least one alcohol with reactive unsaturation, and (3) a hydroxyl group-containing polyether having an OH number of from 9 to 60 and a functionality of from 1 to 6 is used to produce a pre-formed stabilizer that is used to produce a high solids content polymer polyol.

IPC Classes  ?

• C08G 18/72 - Polyisocyanates or polyisothiocyanates
• C08G 18/48 - Polyethers
• C08G 18/62 - Polymers of compounds having carbon-to-carbon double bonds

Abstract

The present invention relates to flame-retardant polycarbonate compositions and methods for increasing the flame-retardancy of polycarbonate compositions. An α,ω-alkoxy phenyl phenyloligosiloxane compound and an alkali metal sulfonate salt are added to the polycarbonate compositions. The addition of the α,ω-alkoxy phenyl phenyloligosiloxane compound and the alkali metal sulfonate salt produces a polycarbonate composition having a flame- retardance rating of UL 94V-0 at 2 mm thickness or less.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08K 5/5415 - Silicon-containing compounds containing oxygen containing at least one Si—O bond
• C08K 5/42 - Sulfonic acidsDerivatives thereof

Abstract

The present invention relates to a device for separating two immiscible phases and/or for extracting one phase with another phase (phase separation or extraction device), comprising at least one vessel for receiving the at least two phases, at least one pipe for supplying a fluid to the vessel, at least one pipe for discharging a fluid from the vessel, and at least one arrangement comprising a transparent disk for observing the separation operation or the extraction operation, wherein at least the side of the transparent disk that faces the phases to be separated or extracted consists of sapphire (sapphire glass) or mica (mica disk), and to the use of such a device in the preparation of di- and polyamines of the diphenylmethane series.

IPC Classes  ?

• B01D 17/12 - Auxiliary equipment particularly adapted for use with liquid-separating apparatus, e.g. control circuits

Abstract

The present invention provides a roll-to-roll continuous manufacturing process for producing a thermoplastic composite laminate comprising extruding a thermoplastic resin into a film article, surface treating a woven fiber cloth material with a thermoplastic sizing and laminating at least one layer of thermoplastic film and at least one layer of the surfaced treated fiber cloth material into a composite sheet at a temperature above the melting or softening point of thermoplastic film and under pressure applied by nipping rolls or nipping belts.

IPC Classes  ?

• B32B 37/00 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
• B32B 27/12 - Layered products essentially comprising synthetic resin next to a fibrous or filamentary layer
• B32B 27/18 - Layered products essentially comprising synthetic resin characterised by the use of special additives
• B32B 17/10 - 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 of synthetic resin

Abstract

A process for endowing a polymeric article with a surface layer of an ion-conducting polymer to yield electrical surface resistivity sufficiently low for electrostatic discharge applications is provided. The polymeric article contains one or more immobilized, polymeric components having amine functional groups. The presence of the ion-conducting polymer in the surface layer lowers the surface electrical resistivity into the range suitable for electrostatic discharge applications, between about 1 x 105 and about 1 x 1012 Ω/π. Plastic electrostatic dissipation materials produced by the inventive process may find use in the optical, electronics, automotive, entertainment, sporting goods, and medical sectors.

IPC Classes  ?

• C08J 7/00 - Chemical treatment or coating of shaped articles made of macromolecular substances
• C08J 7/04 - Coating
• C08L 79/02 - Polyamines
• C09D 179/02 - Polyamines

Abstract

Curable aqueous polyurethane polymer dispersions are described. The dispersion comprises a polyurethane copolymer having pendant (meth)acrylate groups and pendant carboxylic groups along the main chain and a tertiary aminofunctional unsaturated monomer that has reacted in an acid/base reaction with the carboxylic acid groups on the main chain. The dispersion can be applied to the surface of a substrate and cured using ultra-violet or electron-beam radiation to form a cured polyurethane having desired properties that does not emit volatile amine compounds.

IPC Classes  ?

• C08L 75/04 - Polyurethanes
• C08K 5/17 - AminesQuaternary ammonium compounds
• C08J 3/03 - Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
• C08G 18/62 - Polymers of compounds having carbon-to-carbon double bonds

Abstract

Processes for coating substrates and the related substrates are disclosed herein. A one-component base coating composition is applied onto a substrate and a one-component top coating composition is applied wet-on-wet onto the applied base coating composition. The coating compositions are based on aqueous acrylate/polyurethane dispersions. The top coating composition is applied after the applied base coating composition develops a pendulum hardness of at least 50% of the pendulum hardness that would be exhibited by the base coating composition after UV cure. The applied coatings exposed to UV radiation to simultaneously cure both the base coating composition and the top coating composition.

IPC Classes  ?

• C09D 175/04 - Polyurethanes
• C09D 133/04 - Homopolymers or copolymers of esters
• B05D 3/06 - Pretreatment of surfaces to which liquids or other fluent materials are to be appliedAfter-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
• H05K 3/00 - Apparatus or processes for manufacturing printed circuits

Abstract

Polyurethane foams having a NFPA 101 Class B rating (ASTM E-84) which pass the FM 4450 Calorimeter Test are produced by reacting: (a) an organic polyisocyanate, (b) at least one polyether polyol or polyester polyol with a nominal hydroxyI functionality of at least 2.0, (c) a blowing agent composition and (d) at least one halogen-free flame retardant. The blowing agent composition includes: (1) no more than 10% by weight, based on total weight of the foam-forming composition, of one or more hydrocarbons having an LEL less than 2% by volume in air, and/or (2) a hydrocarbon having an LEL greater than 2% by volume in air, and (3) up to 1% by weight, based on total weight of foam-forming composition, of water.

IPC Classes  ?

• C08G 18/08 - Processes

Abstract

Polyurethane/polyisocyanurate foams having a NFPA 101 Class A rating (ASTM E-84) are produced from a foam-forming reaction mixture that includes: an organic polyisocyanate, an isocyanate-reactive composition that includes at least one polyether polyol or polyester polyol with a nominal hydroxy I functionality of at least 2.0, a blowing agent composition and at least one halogen-free flame retardant. The blowing agent composition includes: (1) up to 5% by weight, based on total weight of the foam-forming composition, of one or more hydrocarbons having an LEL less than 2% by volume in air; and/or (2) a hydrocarbon having an LEL greater than 2% by volume in air; and (3) up to 1 % by weight, based on total weight of foam- forming composition, of water.

IPC Classes  ?

• C08G 18/48 - Polyethers
• C08L 75/04 - Polyurethanes
• C08J 9/04 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent

Abstract

The present invention provides an energy absorber for a blast barrier system comprising a substantially tubular member extending longitudinally along an axis from a first end portion to a second end portion, each of the first end portion and the second end portion having a substantially similar geometric profile, wherein the energy absorber collapses under a predetermmed load when compressed by a residual blast force., The energy absorber of the present invention may help minimize damage to people and structures by further dissipating force from a blast, in a blast barrier system.

IPC Classes  ?

• B60R 19/02 - Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
• B60R 19/04 - Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects formed from more than one section
• B60R 19/18 - Means within the bumper to absorb impact

Abstract

This invention relates to polymer polyols comprising one or more base polyols; one or more ethylenically unsaturated monomers in which at least one of the monomers is styrene which contains less than or equal to 1000 ppm of impurities; with one or more preformed stabilizers; in the presence of at least one free radical polymerization initiator; and optionally, one or more chain transfer agents.

IPC Classes  ?

• C08G 18/32 - Polyhydroxy compoundsPolyaminesHydroxy amines
• C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
• C08G 18/62 - Polymers of compounds having carbon-to-carbon double bonds
• C08J 9/04 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent
• C08F 2/38 - Polymerisation using regulators, e.g. chain terminating agents

Abstract

Composite materials including rubber particles and silane-terminated polyurethane binders are disclosed.

IPC Classes  ?

• C08L 75/04 - Polyurethanes
• C08L 21/00 - Compositions of unspecified rubbers
• C08G 18/83 - Chemically modified polymers
• C08K 3/04 - Carbon
• C08K 7/02 - Fibres or whiskers

Abstract

A polyether polyol based on renewable materials is obtained by the in situ production of a polyether from a hydroxyl group-containing vegetable oil, at least one alkylene oxide and a low molecular weight polyol having at least 2 hydroxyl groups. The polyol is produced by introducing the hydroxyl group-containing vegetable oil, a catalyst and an alkylene oxide to a reactor and initiating the alkoxylation reaction. After the alkoxylation reaction has begun but before the reaction has been 20% completed, the low molecular weight polyol having at least 2 hydroxyl groups is continuously introduced into the reactor. After the in situ made polyether polyol product having the desired molecular weight has been formed, the in situ made polyether polyol is removed from the reactor. These polyether polyols are particularly suitable for the production of flexible polyurethane foams.

IPC Classes  ?

• C08G 65/08 - Saturated oxiranes
• C08G 65/34 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives
• C08G 18/48 - Polyethers
• C08J 9/00 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof

Abstract

Composite materials having a multi-wall carbon nanotube content of from 4 to 15% by weight, based on total weight of the composite, are produced from a dispersion of multi-wall carbon nanotubes (MWCNTs) and a fiber reinforcing material in a carrier fluid which is processed to form a shaped article that may then be infused with a liquid polymer or polymer-forming mixture to form the composite.

IPC Classes  ?

• C08K 3/04 - Carbon
• C08L 101/00 - Compositions of unspecified macromolecular compounds
• C08L 63/00 - Compositions of epoxy resinsCompositions of derivatives of epoxy resins
• C08L 75/04 - Polyurethanes
• C01B 31/02 - Preparation of carbon; Purification

Abstract

This invention relates to an improved continuous process for the production of low molecular weight polyoxyalkylene polyether polyols. These polyoxyalkylene polyether polyols have a hydroxy I content of from about 3.4 to about 12.1 % by weight, and may also be characterized as having an OH number of from about 112 to about 400. The process comprises establishing oxyalkylation conditions in a continuous reactor in the presence of a DMC catalyst; continuously introducing alkylene oxide and a low molecular weight starter into the continuous reactor; recovering a partially oxyalkylated polyether polyol from the reactor; and allowing the recovered partially oxyalkylated polyether polyol to further reactor until the unreacted alkylene oxide content of the mixture is reduced to 0.001 % or less by weight.

IPC Classes  ?

• C08G 65/10 - Saturated oxiranes characterised by the catalysts used
• 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
• C07C 43/11 - Polyethers containing —O—(C—C—O—)n units with 2 ≤ n ≤ 10

Abstract

A viscoelastic foam is produced by reacting (a) an isocyanate component that includes at least 25% by weight of dipbenylmethane diisocyanate having a monomeric content of from 50 to 90% by weight, (b) an isocyanate-reactive component, (c) at least one catalyst, (d) at least one surface active agent, and (e) liquid carbon dioxide. These foams are characterized by a ball rebound of less than 20%, Particularly preferred foams are characterized by a 95% height recovery time greater than 4 seconds.

IPC Classes  ?

• C08J 9/08 - 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 chemical blowing agent developing carbon dioxide
• C08G 18/08 - Processes
• C08G 18/72 - Polyisocyanates or polyisothiocyanates
• C08L 75/04 - Polyurethanes
• C08L 101/00 - Compositions of unspecified macromolecular compounds

Abstract

Preformed stabilizers useful for the production of low viscosity, high solids polymer polyols are produced by free-radical polymerization of: (a) at least one ethylenically unsaturated macromolecule or macromer with (b) at least three different ethylenically unsaturated monomers in the presence of (c) at least one free-radical polymerization initiator, and, optionally, (d) a liquid diluent, and, optionally, (e) a chain transfer agent.

IPC Classes  ?

• C08F 265/04 - Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group on to polymers of esters
• C08F 20/10 - Esters
• C08F 2/38 - Polymerisation using regulators, e.g. chain terminating agents
• C08G 63/00 - Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
• C08G 65/00 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule

Abstract

The present invention describes a surprising effect of an aqueous polyurethane dispersion on the efficacy of active ingredients in the anti-acne treatment. The aqueous polyurethane dispersion was able to reduce irritation and substantially enhance efficacy of the salicylic acid and/or salicylic acid derivative in the topical anti-acne serum.

IPC Classes  ?

• A61K 8/368 - Carboxylic acidsSalts or anhydrides thereof with carboxyl groups directly bound to carbon atoms of aromatic rings
• A61Q 19/00 - Preparations for care of the skin
• A61K 8/87 - Polyurethanes
• A61K 8/04 - DispersionsEmulsions
• A61P 17/10 - Anti-acne agents
• C08K 5/09 - Carboxylic acidsMetal salts thereofAnhydrides thereof
• C08L 75/04 - Polyurethanes

Abstract

Carbon nanotube-reinforced composites are produced by incorporating up to 0.7% by weight of carbon nanotubes into a liquid polymeric material a polymeric material. The viscosity of the carbon nanotube-containing liquid polymeric is sufficiently low that it can be used in vacuum infusion and pultrusion processes to produce large articles such as wind turbine blades.

IPC Classes  ?

• C08J 5/08 - Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous materials glass fibres
• C08K 3/04 - Carbon
• C08L 75/04 - Polyurethanes
• 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
• F03D 1/06 - Rotors

Abstract

The invention relates to a multi-layered structure for use as a mirror/reflector in the fields of CPV (concentrating photovoltaics) and CSP (concentrating solar power). The multi-layered structure contains a substrate layer, a barrier layer, a metallic reflector layer, an oxidic layer and an additional layer that can be a plasma-polymer layer or a high-refractive-index metal oxide layer.

IPC Classes  ?

• B32B 17/10 - 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 of synthetic resin
• C03C 17/36 - Surface treatment of glass, e.g. of devitrified glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal

Abstract

This invention relates to polyurethane foams which exhibit decreased aldehyde emission, to a process of preparing these polyurethane foams, and to a method of decreasing aldehyde emissions in foams. The polyurethane foams herein additionally comprise a small quantity of a polyhydrazodicarbonamide dispersion polyol to the isocyanate-reactive component, or a trimerized hexamethylene diisocyanate to the polyisocyanate component.

IPC Classes  ?

• C08G 18/32 - Polyhydroxy compoundsPolyaminesHydroxy amines
• C08G 18/60 - Polyamides or polyester-amides
• C08J 9/04 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent
• C08G 101/00 - Manufacture of cellular products

Abstract

A digital holographic apparatus, system, and method are disclosed. The apparatus includes an electronic display device comprising an interferometric spatial light modulator based display engine and a processor coupled to the electronic display device. The processor is operative to upload digital content to the electronic display device. The digital content is displayed on the electronic display device and is recorded into a holographic medium when the holographic medium and the electronic display device are flood exposed by a laser generated light beam. The system additionally includes at least one laser coupled optically coupled to the electronic display device and communicatively coupled to the processor. A method of recording a digital hologram in a holographic medium using the digital holographic system also is disclosed.

IPC Classes  ?

• G03H 1/04 - Processes or apparatus for producing holograms

Abstract

This invention relates to hybrid polymer polyols. These hybrid polymer polyols comprise the free-radical polymerization product of (A) a base polyol comprising (1) a polymer modified polyol selected from (a) dispersions of polyureas and/or polyhydrazodicarbonamides in a hydroxyl group containing compound and (b) polyisocyanate polyaddition polyols, and (2) optionally, a polyol having a functionality of 2 to 6 and an OH number of from 20 to 500; (B) optionally, a preformed stabilizer; and (C) one or more ethylenically unsaturated monomers, in the presence of (D) a free-radical polymerization initiator, and (E) optionally, a polymer control agent. The present invention also relates to a process for the preparation of these hybrid polymer polyols, foams prepared from these hybrid polymer polyols and to a process for the preparation of these foams.

IPC Classes  ?

• C08G 18/00 - Polymeric products of isocyanates or isothiocyanates
• C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
• C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
• C08J 9/00 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof
• C08G 101/00 - Manufacture of cellular products

Abstract

The present disclosure is directed to aqueous dispersions comprising polyurethane and nanoparticles, and processes for preparing the aqueous dispersions. The dispersions comprise aqueous polyurethane dispersions having nanoparticles covalently incorporated into the polymer matrix. The dispersions are prepared by reacting isocyanate groups present on the polyurethane chain ends with free amine groups on a hydroxy- or amino- functionalized nanoparticle to covalently attach the polyurethane and the nanoparticle through urethane or urea linkages, respectively.

IPC Classes  ?

• C08L 75/04 - Polyurethanes
• C08K 7/00 - Use of ingredients characterised by shape
• C08K 3/04 - Carbon
• C08K 9/04 - Ingredients treated with organic substances
• C08J 3/03 - Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media

Abstract

The present invention provides a laminate for protecting an object against close-proximity blasts, ballistic and severe storm events, the laminate comprising two or more layers of polycarbonate having layered there between one or more layers of a thermoplastic polyurethane. Also provided is a method of protecting an object from a close-proximity blasts, ballistic and severe storm events, the method comprising placing between the object and the close-proximity blast, ballistic or severe storm event, the inventive laminate. The inventive laminate can afford increased protection to an object against 50 lbs, to 100 lbs, of trinitrotoluene-equivalent from distances as close as about 3 feet (0.91 m).

IPC Classes  ?

• F41H 5/04 - Plate construction composed of more than one layer
• E04H 9/04 - Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate against air-raid or other war-like actions
• 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

Abstract

Impact resistant, medium density molded polyurethane foams are produced by the process of the present invention. These foams include from 5 to 35% by weight of glass fibers having an average fiber length of from 12.5 to 50 mm and from 25 to 60% by weight of one or more particulate fillers having an average particle size of from 0.3 to 40 microns.

IPC Classes  ?

• C08J 9/04 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent
• 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 5/08 - Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous materials glass fibres
• C08L 75/04 - Polyurethanes
• C08K 7/14 - Glass

Abstract

This invention relates to novel polyol blends, a process for preparing foams with very low resistance to air flow from certain polyol blends and to the resultant foams. The polyol blends comprise one or more monofunctionai poiyethers having a hydroxy I number of less than 28; one or more polyether polyols having a hydroxy I number of 20 to 240 and containing at least 50% of copolymerized oxyethylene; one or more polyether polyols having a hydroxy I number of 47 to 300 and containing from 5 to 40% of copolymerized oxyethylene; and optionally, one or more polyether polyols having a hydroxy I number of 10 to 45. This process of the invention comprises reacting one or more polyisocyanates, with an isocyanate-reactive component which comprises a specifc polyol blend, in the presence of at least one catalyst, at least one surfactant and at least one blowing agent.

IPC Classes  ?

• C08L 71/08 - Polyethers derived from hydroxy compounds or from their metallic derivatives
• C08G 65/34 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives
• C08G 18/48 - Polyethers
• C08J 9/00 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof
• C08G 101/00 - Manufacture of cellular products

Abstract

The present invention, relates to a flexible sensing material made from (a) at least one flexible polymeric layer and (b) at least one conductive, curable coating layer contaming about 0.01 wt. % to about 5 wt.% of multi- walled carbon nanotubes having a diameter of greater than about 4 nm, about 10 wt. % to about 99 wt.% of an aliphatic urethane acrylate and about 0.1 wt. % to about 15 wt.% of a phoioinitiator, wherein the weight percentages are based on the weight of the formulation, wherein the coating layer is curable by exposure to radiation and wherein the cured coating layer has a surface resistivity of about 102 Ω /□ to about 10ί0 Ω /□. The inventive sensing material may prove useful for sensing one or more of pressure, temperature and moisture and find use in a wide variety of applications.

IPC Classes  ?

• B32B 27/04 - Layered products essentially comprising synthetic resin as impregnant, bonding, or embedding substance
• C08F 2/50 - Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light with sensitising agents
• B05D 3/06 - Pretreatment of surfaces to which liquids or other fluent materials are to be appliedAfter-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
• G01L 9/00 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elementsTransmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means

Abstract

Amine-initiated polyether polyols are made by reacting an amine adduct with a triglyceride in the presence of an alkylene oxide to obtain a polyol having a total renewables content of at least 20%. The polyols produced in this manner are particularly useful for the production of polyurethane and a polyisocyanurate foams.

IPC Classes  ?

• C07C 215/80 - Compounds containing amino and hydroxy groups bound to the same carbon skeleton having hydroxy groups and amino groups bound to carbon atoms of six-membered aromatic rings of the same carbon skeleton of the same non-condensed six-membered aromatic ring containing at least two amino groups bound to the carbon skeleton
• C07C 215/12 - Compounds containing amino and hydroxy groups bound to the same carbon skeleton having hydroxy groups and amino groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being saturated and acyclic the nitrogen atom of the amino group being further bound to hydrocarbon groups substituted by hydroxy groups
• B01J 23/04 - Alkali metals
• B01J 31/12 - Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing organo-metallic compounds or metal hydrides
• C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
• C08J 9/00 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof

Abstract

Aqueous polyurethane coating compositions are disclosed in this specification. The aqueous polyurethane coating compositions contain a polycarbonate-polyurethane resin component, an aminoplast resin component, and a polyurethane polyol component.

IPC Classes  ?

• C09D 175/04 - Polyurethanes
• C09D 7/12 - Other additives
• C03C 17/32 - Surface treatment of glass, e.g. of devitrified glass, not in the form of fibres or filaments, by coating with organic material with synthetic or natural resins
• B65D 13/02 - Containers having bodies formed by interconnecting two or more rigid, or substantially rigid, components made wholly or mainly of the same material, other than metal, plastics, wood or substitutes therefor of glass, pottery, or other ceramic material

Abstract

Aqueous polyurethane coating compositions are disclosed in this specification. The aqueous polyurethane coating compositions contain a polycarbonate-polyurethane resin component and a water-dilutable, ethylenically unsaturated polyurethane polyol component.

IPC Classes  ?

• C09D 175/04 - Polyurethanes
• C09D 7/12 - Other additives
• C03C 17/32 - Surface treatment of glass, e.g. of devitrified glass, not in the form of fibres or filaments, by coating with organic material with synthetic or natural resins

Abstract

Aqueous polyurethane coating compositions are disclosed in this specification. The aqueous polyurethane coating compositions contain a polycarbonate-polyurethane resin component, an aminopiast resin component, and a polyester polyol component.

IPC Classes  ?

• C09D 175/04 - Polyurethanes
• C09D 7/12 - Other additives
• C03C 17/32 - Surface treatment of glass, e.g. of devitrified glass, not in the form of fibres or filaments, by coating with organic material with synthetic or natural resins

Abstract

Aqueous polyurethane coating compositions are disclosed in this specification. The aqueous polyurethane coating compositions contain a polycarbonate-polyurethane resin component, an aminopiast resin component, and a polyacrySic polyol component.

IPC Classes  ?

• C09D 175/04 - Polyurethanes
• C09D 7/12 - Other additives
• C03C 17/28 - Surface treatment of glass, e.g. of devitrified glass, not in the form of fibres or filaments, by coating with organic material

Abstract

The present invention provides a composition containing about 90% to about 30% of at least one amorphous thermoplastic or at least one semi crystalline thermoplastic or a mixture thereof and about 10% to about 70% of expanded graphite, wherein about 90% of the particles of the expanded graphite have a particle size of at least about 200 microns. The inventive compositions may find use in LED heat sink applications.

IPC Classes  ?

• C08L 101/00 - Compositions of unspecified macromolecular compounds
• C08K 3/04 - Carbon
• H01B 1/24 - Conductive material dispersed in non-conductive organic material the conductive material comprising carbon-silicon compounds, carbon, or silicon
• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• F21V 29/00 - Protecting lighting devices from thermal damageCooling or heating arrangements specially adapted for lighting devices or systems

Abstract

The present invention provides a conductive, curable coating made from about 0.01. wt.% to about 5 wt.%, of multi-walled carbon nanotubes; having a diameter of greater than about 4 rim, about 10 wt.% to about 99 wt.% of an aliphatic urethane acrylate and about 0.1 wt.% to about 15 wt.% of a photoinitiator, wherein the coating is curable by exposure to radiation and wherein the, cured coating has a surface resistivity of about 102 Ω / □ lo about 1010 Ω/ □. A process for the production of such coatings is also provided. There are many applications where carbon nanotubes in a radiation curable coating may enhance properties other than conductivity, such as physical and thermal properties.

IPC Classes  ?

• C09D 5/24 - Electrically-conducting paints
• H01B 1/24 - Conductive material dispersed in non-conductive organic material the conductive material comprising carbon-silicon compounds, carbon, or silicon
• C09D 133/04 - Homopolymers or copolymers of esters
• C09D 7/12 - Other additives

Abstract

A polyurethane-forming system having a viscosity at 25°C of less than 600 mPas for at least 30 minutes, a gel time at ambient temperature of greater than 80 minutes and a water content of less than 0.06% by weight, based on total system weight, is used to produce composites by a vacuum infusion process. This system makes it possible to produce large composites such as wind turbine blades having excellent physical properties.

IPC Classes  ?

• C08G 18/08 - Processes
• C08G 18/72 - Polyisocyanates or polyisothiocyanates
• C08L 75/04 - Polyurethanes
• C08J 5/04 - Reinforcing macromolecular compounds with loose or coherent fibrous material

Abstract

The present invention provides a process for the production of functionalized carbon nanotubes. The inventive process for the production of functionalized carbon nanotubes involves reacting carboxylic acid moieties of oxidized carbon nanotubes with vapors of a compound containing carboxylic acid reactive groups to produce functionalized carbon nanotubes. The present invention also provides a composition made from a plastic resin and functionalized carbon nanotubes produced by reacting carboxylic acid moieties of oxidized carbon nanotubes with a vapor containing carboxylic acid reactive groups to produce functionalized carbon nanotubes. The inventive process is useful with single-walled carbon nanotubes, double-walled carbon nanotubes and multi-walled carbon nanotubes.

IPC Classes  ?

• C01B 31/02 - Preparation of carbon; Purification
• B01J 8/22 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with fluidised particles with liquid as a fluidising medium gas being introduced into the liquid
• B82B 3/00 - Manufacture or treatment of nanostructures by manipulation of individual atoms or molecules, or limited collections of atoms or molecules as discrete units
• B82Y 40/00 - Manufacture or treatment of nanostructures

Abstract

A flame-retardant thermoplastic molding composition is disclosed. The composition contains aromatic polycarbonate resin, about 0.01 to 0.15 wt.-% of a salt, wherein the salt is an alkali metal or alkaline earth metal salt of perfluoroalkane sulfonic acid, aromatic sulfimide, ar aromatic sulfonic acid, and about 0.5 to 10 wt.-% of poly- and/or oligo-aryloxysiloxane (herein after referred as aryloxysiloxane) as flame-retardant synergist. The inventive composition is characterized in that its flammability rating is better than that of aromatic polycarbonate resin containing only inorganic salt of a derivative from aliphatic or aromatic sulfonic acid, sulphonamide or sulfonimide in accordance with UL-94 V standard, while mechanical and optical properties of the compositions are maintained.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates

Abstract

The present invention relates to a non-aqueous coating composition comprising: 1) 75 to 99 wt.%, preferably 85 to 95 wt.% of a hard urethane (meth) acrylate polymer or oligomer; and 2) 1 to 25 wt.%, preferably 5 to 15 wt% of a soft unsaturated ucethane (meth) acrylai.e polymer or oligomer containing allophanate groups.

IPC Classes  ?

• C09D 175/04 - Polyurethanes
• C09D 4/02 - Acrylmonomers
• C03C 17/32 - Surface treatment of glass, e.g. of devitrified glass, not in the form of fibres or filaments, by coating with organic material with synthetic or natural resins

Abstract

The present invention relates to a process for the production of sized and/or wet- strength papers, paperboards or cardboards, wherein an aqueous radiation-curable dispersion containing water and at least one polymer, characterized in that the polymer contains cationic groups, is mixed with suspended wood pulp and/or chemical pulp and this mixture is sieved, pressed, thermally dried and then radiation-cured, characterized in that the dispersion is employed in amounts, based on its non-aqueous content in relation to the solid content of the wood pulp and/or chemical pulp, of from 0.001 to 10 wt.%, the papers, paperboards and cardboards produced by this process, and compositions comprising suspended wood pulp and/or chemical pulp and an aqueous radiation-curable dispersion containing at least one polymer, characterized in that the polymer contains cationic groups.

IPC Classes  ?

• D21H 21/16 - Sizing or water-repelling agents
• D21H 17/44 - Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups cationic

Abstract

Cold-pressed mats of lignocellulosic material having a Push Off Test extension equal to at least 85% of that of a mat made with a urea-formaldehyde resin are produced from a lignocellulosic material and binder system. These mats are produced at ambient temperature by separately adding each component of the binder system to the lignocellulosic material, blending the lignocellulosic material and binder system to coat the lignocellulosic material with the binder system, forming the coated lignocellulosic material into the desired form and applying pressure to the formed lignocellulosic material to obtain the desired thickness. The binder system includes: (i) at least one polyfunctional isocyanate and (ii) at least one aqueous dispersion of an adhesive or tackifier.

IPC Classes  ?

• B27N 3/10 - Moulding of mats
• B27N 1/02 - Mixing the material with binding agent
• C08L 97/02 - Lignocellulosic material, e.g. wood, straw or bagasse
• C08L 75/04 - Polyurethanes

Abstract

The present invention provides flexible conventional polyurethane foams made from at least one polyisocyanate and at least one vegetable oil alkoxylated in the presence of a double metal cyanide (DMC) catalyst, optionally at least one non-vegetable oil-based polyol, generally in the presence of a blowing agent and optionally in the presence of a surfactant, pigment, flame retardant, catalyst or filler. The alkoxylated natural oil must have (a) an ethylene oxide content in the alkoxylated segment greater than 20% by weight, (b) a primary hydroxyl group content of at least 10%, with the sum of (a) + (b) being at least 30% but no greater than 60%, The alkoxylated natural oils are environmentally-friendly, bio- based polyols which can be used to increase the "green" content of polyurethane foams without having detrimental effects on foam properties.

IPC Classes  ?

• C08J 9/04 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent
• C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
• C08G 18/16 - Catalysts
• C08G 18/72 - Polyisocyanates or polyisothiocyanates
• C08G 101/00 - Manufacture of cellular products

Abstract

This invention relates to nitrile-free azo initiators for the preparation of polymer polyols and to the polymer polyols prepared therefrom. These novel polymer polyols comprise a base polyol, a preformed stabilizer and at least one ethylenically unsaturated monomer, in the presence of at least one free-radical polymerization initiator comprising as azo compound that is free of nitrile groups, and optionally, a polymer control agent. The process of preparing these polymer polyols is a continuous process comprising free-radically polymerizing a base polyol, a preformed stabilizer, and at least one ethylenically unsaturated monomer, in the presence of at least one free-radical polymerization initiator comprising as azo compound that is free of nitrile groups, and optionally, a polymer control agent.

IPC Classes  ?

• C08K 5/20 - Carboxylic acid amides
• C08K 5/29 - Compounds containing carbon-to-nitrogen double bonds
• C08F 12/08 - Styrene
• C08F 20/44 - Acrylonitrile
• C08F 2/38 - Polymerisation using regulators, e.g. chain terminating agents

Abstract

A process of producing a low gloss coating curing the coating using UV-A radiation.

IPC Classes  ?

• C09D 133/14 - Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen
• C09D 4/02 - Acrylmonomers
• C09D 175/14 - Polyurethanes having carbon-to-carbon unsaturated bonds
• B05D 3/06 - Pretreatment of surfaces to which liquids or other fluent materials are to be appliedAfter-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation

Abstract

Polyols are produced by an alkoxylation process in which a vegetable oil containing hydroxyl functional groups is combined with a DMC catalyst to form a mixture, the DMC catalyst is then activated by adding ethylene oxide and/or propylene oxide to the vegetable oil/catalyst mixture, and ethylene oxide and propylene oxide are added to the mixture containing activated DMC catalyst in amounts such that the total of percentage of ethylene oxide in the polyol plus percentage of primary hydroxyl groups in the polyol produced is from 50 to 77% and the percentage of primary hydroxyl groups is at least 30% but less than 50%. These polyols are useful for the production of molded polyurethane foams, particularly, hot-cure molded polyurethane foams.

IPC Classes  ?

• C07C 67/03 - Preparation of carboxylic acid esters by reacting an ester group with a hydroxy group
• C07C 69/675 - Esters of carboxylic acids having esterified carboxyl groups bound to acyclic carbon atoms and having any of the groups OH, O-metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety of saturated acids of saturated hydroxy-carboxylic acids
• C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
• C08J 9/04 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent

Abstract

A polyurea coating composition comprising the reaction product of: an isocyanate-functional component (A) comprising: a) an aliphatic isocyanate functional material; and b) a cycloaliphatic isocyanate functional material; and an isocyanate-reactive component (B) comprising at least one polyaspartic acid ester component.

IPC Classes  ?

• C09D 175/02 - Polyureas
• C08G 18/38 - Low-molecular-weight compounds having hetero atoms other than oxygen
• H05K 3/00 - Apparatus or processes for manufacturing printed circuits
• C23C 28/00 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and

Abstract

Polyether polyols with an OH number of from 15 to 120 mg of KOH/g are produced by (i) introducing a mixture of DMC catalyst and a poly(oxyalkylene) polyol or a mixture of DMC catalyst and a polyether polyol ("heel") obtainable by the process according to the invention is initially into a reactor and (ii) continuously introducing one (or more) low molecular weight starter compound(s) with a (mixed) hydroxyl functionality of from 2.2 to 6.0 and a mixture composed of a) 73 to 80 parts by weight (per 100 parts by weight of a) plus b)) of ethylene oxide and b) 27 to 20 parts by weight (per 100 parts by weight of a) plus b)) of at least one substituted alkylene oxide corresponding to a specified formula into the mixture from step (i). These polyether polyols are particularly useful for the production of flexible polyurethane foams.

IPC Classes  ?

• C08G 65/00 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule

Abstract

Composition and process for low temperature curing of polyuretdione-polyol compositions in which the polyuretdione is prepared from a polyisocyanate with isocyanate groups and a polyol containing primary hydroxyl groups. The catalyst for the composition and process is an amine catalyst containing the group -N=C-N-, being aprotic, having a pKa greater than 20 and upon addition to the liquid coating composition causing a phase-change of the coating composition from liquid to solid at 250C and 1atm. within one week.

IPC Classes  ?

• C09D 175/04 - Polyurethanes
• C09D 7/12 - Other additives
• C08J 7/04 - Coating
• C08G 18/72 - Polyisocyanates or polyisothiocyanates

Abstract

The present invention provides a thermoplastic molding composition containing an aromatic polycarbonate and a core-shell graft copolymer which is coagulated with a salt of a metal element selected from the group consisting of lithium, sodium, potassium, rubidium, cesium, francium, beryllium, magnesium, calcium, strontium, barium and radium. The molding composition may optionally include a polyalkylene terephthalate. The inventive thermoplastic molding composition exhibits improved hydrolytic stability over a comparable thermoplastic molding composition produced with a core shell graft copolymer coagulated with a salt of a metal element not selected from the group consisting of lithium, sodium, potassium, rubidium, cesium, francium, beryllium, magnesium, calcium, strontium, barium and radium.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08L 51/00 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers
• C08L 67/03 - Polyesters derived from dicarboxylic acids and dihydroxy compounds the dicarboxylic acids and dihydroxy compounds having the hydroxy and the carboxyl groups directly linked to aromatic rings
• C08J 5/00 - Manufacture of articles or shaped materials containing macromolecular substances

Abstract

Fire-resistant, medium density molded polyurethane foams which may be removed from a mold in substantially shorter times than previously possible are produced by the process of the present invention. These reduced de-mold times are achieved by including a solid flame retardant composition in the polyurethane foam forming composition. This solid flame retardant composition includes a melamine coated ammonium polyphosphate and zinc borate.

IPC Classes  ?

• C08J 9/00 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof
• C08L 75/04 - Polyurethanes
• C08K 9/04 - Ingredients treated with organic substances
• C08K 3/38 - Boron-containing compounds
• C08G 18/06 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen

Abstract

The present invention relates to a flame-retardant, optically clear thermoplastic molding composition. The composition contains a A) about 60 pbw to about 97 pbw of a polycarbonate, B) about 1 pbw to about 20 pbw of bromine- substituted oligocarbonate, C) about 1 pbw to about 20 pbw of a phosphorus- containing compound and D) about 0.01 pbw to about 1 pbw of at least one alkali or alkaline- earth salt of perfluoroalkane sulfonic acid and optionally E) about 0.01 to about 1 pbw of a phosphite antioxidant/stabilizer. In accordance with UL-94 standard the flame-retardant, optically clear thermoplastic molding composition is rated 5VA at 3.00 mm and V-O at 2.3 mm, more preferably V-O at 1.5 mm according to UL-94.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08K 5/52 - Phosphorus bound to oxygen bound to oxygen only
• C08K 5/36 - Sulfur-, selenium-, or tellurium-containing compounds
• C09K 21/00 - Fireproofing materials

Abstract

The present invention provides a flow-through photobioreactor containing at least one thermoplastic multi-wall sheet having an upper layer and a lower layer having arranged there between at least two sidewalls, at least one inner wall and two or more end caps. Also provided is a process for the production of a biofuel with the inventive photobioreactor. The photobioreactor and process of the present invention have the following advantages: genetically engineered microbes that give higher yields cannot escape into the environment, water in the system does not evaporate, no weeding (presence of unwanted algae), UV light from the sun is filtered out by the reactor walls, temperature control is possible, CO2 from power plants, breweries, etc. can be artificially fed to increase yield. The inventive photobioreactor is also less expensive to build than pipe reactors and may have low energy costs to operate, because little or no energy is needed for agitation and pumping in a preferred gravity assisted embodiment.

IPC Classes  ?

• C12M 3/04 - Tissue, human, animal or plant cell, or virus culture apparatus with means providing thin layers
• C12M 1/14 - Apparatus for enzymology or microbiology with means providing thin layers or with multi-level trays
• C12M 1/18 - Multiple fields or compartments
• C12P 7/06 - Ethanol, i.e. non-beverage
• C12P 7/16 - Butanols

Abstract

The present disclosure is directed to an aliphatic isocyanate-based moisture-curable resin. The disclosed resin may include an aliphatic isocyanate functional material and an cycloaliphatic isocyanate functional material. The resin may be used to formulate a coating composition that may exhibit no substantial sag when applied at a wet film thickness of at least 6 mils, and no substantial blistering when cured to a dry film thickness of at least 6 mils.

IPC Classes  ?

• C09D 175/04 - Polyurethanes
• C09D 175/08 - Polyurethanes from polyethers
• C09D 5/00 - Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects producedFilling pastes
• C08J 7/04 - Coating
• C08L 75/04 - Polyurethanes

Abstract

The present invention provides processes for the production of polyurethane wind turbine blades and other large objects. The inventive process involves forming a mold for the polyurethane wind turbine blade at a wind farm site, injecting an isocyanate and an isocyanate-reactive component with an automated reaction injection molding ("RIM") machine into the mold, closing, pressing and heating the mold to cure the resulting polyurethane and installing the polyurethane blade in the wind turbine. Alternatively, the process involves forming a mold for polyurethane wind turbine blade at a wind farm site, injecting an isocyanate, an isocyanate-reactive component and long fibers with an automated long fiber injection ("LFI") machine, closing, pressing and heating the mold to cure the resulting polyurethane and installing the polyurethane blade in the wind turbine. Because the inventive manufacturing process occurs at the wind farm site, transportation problems are obviated.

IPC Classes  ?

• B29C 70/16 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements using fibres of substantial or continuous length
• F03D 11/00 - Details, component parts, or accessories not provided for in, or of interest apart from, the other groups of this subclass
• C08L 75/04 - Polyurethanes

Abstract

The present invention relates to an aqueous polyurethane coating composition comprising: 1) 1 to 99 wt. % of the reaction product of: a) a polyol component, which is soluble or dispersible in water and is the reaction product of a polyisocyanate component containing 50 to 100 wt. % of an aliphatic diisocyanate, a polyol component containing one or more polyether polyols and having an OH number of 25 to 350 mg KOH/g solids and an isocyanate-reactive component containing at least one group capable of salt formation; and b) polyisocyanate component, which is soluble or dispersible in water, has blocked isocyanate groups and is the reaction product of one or more polyisocyanates having an isocyanurate group content of 0 to 30 wt. %, a reversible, mono functional blocking agent for isocyanate groups, a nonionic hydrophilic component and a stabilizing component which has 1 to 2 hydrazide groups and a molecular weight of 74 to 300 g/mol; and 2) 1 to 99 wt.% of an aqueous polyurethane dispersion prepared from at least one polycarbonate polyol, wherein the total wt. % of components 1) and 2) add up to 100%.

IPC Classes  ?

• C09D 175/04 - Polyurethanes
• C09D 5/02 - Emulsion paints
• C03C 17/32 - Surface treatment of glass, e.g. of devitrified glass, not in the form of fibres or filaments, by coating with organic material with synthetic or natural resins
• B65D 1/00 - Rigid or semi-rigid containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material or by deep-drawing operations performed on sheet material
• A47G 19/00 - Table service

Abstract

The present invention relates to a composite containing a first plastic layer, a second plastic layer and a sprayable elastomeric polyurethane foam made from the reaction product of at least one isocyanate, at least one polyol and water, optionally at least one of blowing agents, surfactants, cross-linking agents, extending agents, pigments, flame retardants, catalysts and fillers, wherein the sprayable elastomeric polyurethane foam is sprayed onto one surface of the first plastic layer and expands to contact and adhere to one surface of the second plastic layer which is oriented parallel to the one surface of the first plastic layer and wherein the sprayable elastomeric polyurethane foam has a free rise density of from about 5 lb/ft3 to about 25 lb/ft3, a reactive cream time of from about 10 seconds to about 120 seconds, an elongation of from about 30% to about 300%, a molded density of from about 25 lb/ft3 to about 65 lb/ft3 and a peel strength of greater than about 2.0 lb/in2. Such composites may find use in a variety of applications.

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 27/20 - Layered products essentially comprising synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
• 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

Abstract

The present invention relates to a sprayable elastomeric polyurethane foam made from the reaction product of at least one isocyanate, at least one isocyanate- reactive component and water, optionally in the presence of at least one of blowing agents, surfactants, cross-linking agents, extending agents, pigments, flame retardants, catalysts and fillers, wherein the sprayable elastomeric polyurethane foam has a free rise density of from about 5 lb/ft3 to about 25 lb/ft3, a reactive cream time of from about 10 seconds to about 120 seconds, and an elongation of from about 30% to about 300%.

IPC Classes  ?

• C08G 18/70 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
• C08L 75/04 - Polyurethanes
• C08G 101/00 - Manufacture of cellular products

Abstract

The present disclosure is directed to a process for forming a reinforced ultraviolet (UV) radiation-curable composite. The composite may be formed by applying reinforcing layers and resin layers to a substrate. The resin composition may include an aliphatic urethane acrylate oligomer, a polyfunctional acrylate monomer, and a photoinitiator. The composite formed on the substrate may be exposed to UV radiation to cure the composite on the substrate. The composite may be characterized in that it is cured within 10 minutes of exposure to UV radiation and does not exhibit oxygen inhibition effects, such as, for example, surface tack. The reinforced UV-curable composite may find utility, for example, as a rapid field repair patch in aerospace applications, among others.

IPC Classes  ?

• B05D 1/38 - Successively applying liquids or other fluent materials, e.g. without intermediate treatment with intermediate treatment
• C09D 4/02 - Acrylmonomers
• B05D 3/06 - Pretreatment of surfaces to which liquids or other fluent materials are to be appliedAfter-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation

Abstract

An isocyanate-reactive composition containing a blowing agent that includes HFC 134a and water characterized by a vapor pressure which is lower than that of comparable compositions which do not include the stabilizing composition of the present invention. The stabilizing composition of the present invention includes an ethoxylated nonylphenol and propylene carbonate. This stabilizing composition is included in the isocyanate-reactive composition in an amount sufficient to promote the solubility of the blowing agent. The isocyanate-reactive composition may be stored at ambient conditions rather than under pressure and may be hand mixed with an isocyanate to produce a foam. The isocyanate-reactive composition containing blowing agent of the present invention may be used to produce foams having good physical properties after storage at ambient temperature and pressure for periods as long as 3 months.

IPC Classes  ?

• C08L 75/04 - Polyurethanes
• C08K 5/04 - Oxygen-containing compounds
• C08J 9/04 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent
• C08G 18/70 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used

Abstract

A reinforced polymer composite that includes a Class A surface and method of making are disclosed. A reinforced polymer composite comprises a polymeric barrier layer that comprises a barrier layer first surface, a barrier layer second surface, and a plurality of hard segment domains. A reinforced polymer composite also comprises a reinforced polymeric layer covering at least a portion of the barrier layer first surface, wherein the barrier layer second surface exhibits a Class A quality, and wherein the plurality of hard segment domains substantially suppress deformation of the polymeric barrier layer at a molding temperature of the reinforced polymer composite. Optionally, an in-mold coating that has a Class A surface covers at least a portion of the barrier layer second surface.

IPC Classes  ?

• B27N 3/00 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres

Abstract

The present invention provides a bi-active method of mounting a monolithic polycarbonate sheet or a laminate in a semi -rigid metallic framing system along two parallel sides of a rectangular shaped sheet or laminate with the two shorter parallel sides being unconstrained. In the case of a square shaped sheet, two parallel sides are supported in the semi -rigid frame, and the other two parallel sides are unconstrained. The semi-rigid frame utilizes cylindrically shaped hardware (i.e., bolts, rivets, studs, etc.) to hold the sheet or laminate. The semi-rigid frame is designed, via section and material properties, to flex and hinge about fixed mounting points along the length of the frame.

IPC Classes  ?

• E06B 5/16 - Fireproof doors or similar closuresAdaptations of fixed constructions therefor
• E06B 3/76 - Door leaves consisting of frame and panels with metal panels
• E06B 3/78 - Door leaves consisting of frame and panels with panels of plastics
• A62C 2/06 - Physical fire-barriers

Abstract

The present invention relates to coating compositions for modulating biofilm growth on a surface, the composition comprising the reaction product of: A) an ethylenically unsaturated compound having at least one group with the following structure:Formula (I), and B) an ethylenically unsaturated compound.

IPC Classes  ?

• C08G 18/06 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
• C09D 175/04 - Polyurethanes
• A61L 29/16 - Biologically active materials, e.g. therapeutic substances

Abstract

The present invention provides a transparent thermoplastic molding composition made from one member selected from the group consisting of a transparent copolyestercarbonate resin, a transparent blend of a polycarbonate resin with a polyester resin, and a transparent polyester resin, from about 0.005 weight percent to about 2 weight percent, based on the weight of the composition, of a perfluoroalkylsulfonic acid salt of the formula (I): (RA — SO3-)nXn+ (I), wherein R denotes perfluorinated linear or branched carbon chain having 1 to 30 carbon atoms, A denotes a direct bond or an aromatic nucleus, n denotes an integer of 1 or 2, and X denotes a metal element selected from the first or the second column in the Periodic Table of the Elements, and from about 0 weight percent to about 5 weight percent, based on the weight of the composition, of a glycerol monostearate (GMS), wherein the transparent thermoplastic molding composition has a total transmittance according to ASTM D- 1003 of greater than about 84 % and an electric resistivity according to ASTM D-257 (at 277 °C after 1000 seconds electrification at 100 volts) of less than about 2.5E+06 ohm-m.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08L 67/03 - Polyesters derived from dicarboxylic acids and dihydroxy compounds the dicarboxylic acids and dihydroxy compounds having the hydroxy and the carboxyl groups directly linked to aromatic rings
• C08K 5/42 - Sulfonic acidsDerivatives thereof
• C08K 5/09 - Carboxylic acidsMetal salts thereofAnhydrides thereof
• C08L 67/00 - Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chainCompositions of derivatives of such polymers

Abstract

This invention relates to fire-resistant, flexible, molded, medium density polyurethane foams. These foams typically have a density of from 10 to 30 pcf. The foams are the reaction product of a) at least one polyester polyol, b) at least one highly branched polyether polyol, c) at least one chain extender, d) a polymethylene poly(phenyl isocyanate), an isocyanate group containing prepolymer based on a polymethylene poly(phenyl isocyanate), or mixtures thereof, e) a solid flame retardant and f) water. This invention also relates to a process for preparing these polyurethane foams in open molds.

IPC Classes  ?

• C08J 9/22 - After-treatment of expandable particlesForming foamed products
• C08J 9/228 - Forming foamed products
• C08J 9/04 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent
• C08L 75/04 - Polyurethanes
• C08G 18/34 - Carboxylic acidsEsters thereof with monohydroxyl compounds
• C08G 18/48 - Polyethers
• C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
• C08K 3/38 - Boron-containing compounds
• C08K 3/10 - Metal compounds

Abstract

This invention relates to a fire-resistant, medium density polyurethane foam. The foam is made up of a) 50 to 90 parts by weight of water blown polyurethane and b) 10 to 50 parts by weight of a solid flame retardant that contains ammonium polyphosphate and zinc borate, and in which the resultant foam contains at least 5% by weight of zinc borate. The present invention also relates to a process for the preparation of these fire-resistant, medium density polyurethane foams.

IPC Classes  ?

• C08J 9/22 - After-treatment of expandable particlesForming foamed products
• C08L 75/04 - Polyurethanes
• C08K 5/49 - Phosphorus-containing compounds
• C08K 3/38 - Boron-containing compounds
• C08K 3/22 - OxidesHydroxides of metals
• C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
• C08G 18/34 - Carboxylic acidsEsters thereof with monohydroxyl compounds
• C08G 101/00 - Manufacture of cellular products

Abstract

The present invention relates to a thermoplastic molding composition containing an aromatic polycarbonate, a polylactic acid and an impact modifying amount of a non-functionalized ethylene/(meth)acrylate copolymer. The inventive composition is characterized by its higher impact resistance, flexural and tensile properties than those of corresponding compositions where the copolymer is functionalized.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08L 67/04 - Polyesters derived from hydroxy carboxylic acids, e.g. lactones
• C08L 23/08 - Copolymers of ethene
• C08L 33/08 - Homopolymers or copolymers of acrylic acid esters
• C08L 33/12 - Homopolymers or copolymers of methyl methacrylate
• C08L 33/14 - Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur, or oxygen atoms in addition to the carboxy oxygen

Abstract

A thermoplastic molding composition characterized by its flame retardance and impact strength is disclosed. The composition contains (A) linear aromatic (co)polycarbonate, (B) a graft (co)polymer having a grafted phase containing the polymerization product of at least one vinyl monomer and a substrate in particulate form that contains crosslinked member selected from the group consisting of (i) rubber containing interpenetrated and inseparable silicone and poly(meth)alkyl acrylate components and (ii) silicone rubber, (C) a phosphorous-containing flame retardant compound, (D) fluorinated polyolefin. The composition containing neither polyalkylene terephthalate nor boron compounds.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08L 51/04 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers grafted on to rubbers
• C08L 51/06 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
• C08K 5/5373 - Esters of phosphonic acids containing heterocyclic rings not representing cyclic esters of phosphonic acids
• C08L 27/18 - Homopolymers or copolymers of tetrafluoroethene

Abstract

A flame-retardant, optically clear thermoplastic molding composition is disclosed. The composition contains aromatic polycarbonate resin, a bromine-substituted carbonate oligomer, a phosphorous containing compound and an inorganic salt of perfluoroalkane sulfonic acid in amounts effective to impart to the composition flame resistance that in accordance with UL-94-5V standard is rated A at 3.00 mm and V-O at 1.5 mm.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08K 5/5373 - Esters of phosphonic acids containing heterocyclic rings not representing cyclic esters of phosphonic acids
• C08K 5/42 - Sulfonic acidsDerivatives thereof
• C08K 3/10 - Metal compounds

Abstract

The present invention provides a low density, semi-rigid polyurethane foam made from the reaction product, at an isocyanate index of from about 100 to about 150, of at least one polyisocyanate and an isocyanate-reactive blend containing from about 15 wt.% to about 55 wt.%, based on the weight of the resin, of a difunctional or greater functionality polyether polyol, from about 3 wt.% to about 19 wt.%, based on the weight of the resin, of at least one polyether tetrol, and from about 7 wt.% to about 39 wt.%, based on the weight of the resin, of at least one non-halogenated polyester polyol in the presence of jτom about 5 wt.% to about 30 wt.%, based on the weight of the resin, of at least one non-hydroxy functional flame retardant and from about 1 wt.% to about 20 wt.%, based on the weight of the resin, of at least one cross linking agent, and optionally in the presence of one or more of catalysts, surfactants, chain extenders and blowing agents, wherein the semi-rigid polyurethane foam having a density of from about 2 to about 25 pcf meets at least a V-I class rating in accordance with UL 94 V flammability testing. The low density, semi-rigid polyurethane foams of the present invention may find use in producing lightweight, rapidly erected barriers for protection of people such as soldiers, police officers and fire fighters from pursuit by adversaries. Barriers made with the inventive foam may also be used to limit access to already secured areas.

IPC Classes  ?

• C08J 9/22 - After-treatment of expandable particlesForming foamed products
• C08J 9/04 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent
• C08G 18/48 - Polyethers
• C08G 18/34 - Carboxylic acidsEsters thereof with monohydroxyl compounds
• C08L 75/04 - Polyurethanes
• C08K 5/49 - Phosphorus-containing compounds
• C08K 3/00 - Use of inorganic substances as compounding ingredients
• C08G 101/00 - Manufacture of cellular products

Abstract

The present invention provides a process for producing a rigid polyisocyanurate foam involving reacting at an isocyanate index of from about 175 to about 400, a polyisocyanate with at least one natural-oil polyol containing at least about 35 wt.%, based on the weight of the polyol, of natural oil, having a hydroxyl number from about 175 to about 375 and a hydroxyl functionality of about 2.0 to about 2.8, in the presence of a blowing agent and optionally, in the presence of one or more of surfactants, flame retardants, pigments, catalysts and fillers, wherein the resulting foam has a renewable biobased content of at least 8% by weight. The foams provided by the inventive process possess properties similar to foams produced from petroleum-derived materials and may find use in wall or roof insulation systems. The high biobased content (>8%) may allow wall or roof insulation systems containing these foams to be considered for the U.S. Government's preferred procurement program.

IPC Classes  ?

• C08J 9/22 - After-treatment of expandable particlesForming foamed products
• C08J 9/30 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof by mixing gases into liquid compositions or plastisols, e.g. frothing with air
• C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
• C08G 18/72 - Polyisocyanates or polyisothiocyanates
• C08G 18/74 - Polyisocyanates or polyisothiocyanates cyclic
• C08G 101/00 - Manufacture of cellular products

Abstract

The invention relates to new, hydrolysis-stable, aqueous polyurethane-polyurea dispersions based on polycarbonate-polyols, to a process for preparing them and to their use in coating materials.

IPC Classes  ?

• C08G 18/30 - Low-molecular-weight compounds
• C08G 18/40 - High-molecular-weight compounds
• C08G 18/72 - Polyisocyanates or polyisothiocyanates
• C08G 18/48 - Polyethers
• C08G 18/82 - Post-polymerisation treatment
• C08J 3/03 - Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
• C08L 75/04 - Polyurethanes
• C09D 175/04 - Polyurethanes

Abstract

A thermoplastic composition having antimicrobial and good impact properties is disclosed. The composition comprises (i) (co)polycarbonate, (ii) (co)polyester, (iii) grafted elastomeric (co)polymer and an amount of an antimicrobial agent. The antimicrobial agent that contains zeolite, metal oxide and hydrotalcite is present in an amount sufficient to impart to the composition antimicrobial efficacy.

IPC Classes  ?

• C08K 3/10 - Metal compounds
• C08K 3/22 - OxidesHydroxides of metals
• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08L 67/00 - Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chainCompositions of derivatives of such polymers

Abstract

The present invention is directed to a process for coating a wood substrate, the coating composition curable by radiation having a wavelength of 320 nm to 450 nm and the coated product so-produced.

IPC Classes  ?

• C09D 175/04 - Polyurethanes
• C09D 15/00 - Woodstains

Abstract

A coating composition is provided. The composition comprises as component I, a) a polyaspartic acid ester comprising the reaction product of one more diamines, one or more difunctional acrylate-containing compounds and one or more maleic/fumaric acid esters; b) at least one moisture scavenger; c) at least one deaerator; d) at least one plasticizer; and e) optionally additives; and as component II, one or more polyisocyanates. Methods of making and applying the composition to a substrate are also provided. The coating is particularly suitable for use as a gel coat.

IPC Classes  ?

• C08L 75/06 - Polyurethanes from polyesters
• B44F 9/04 - Designs imitating natural patterns of stone surfaces, e.g. marble
• C08K 5/5415 - Silicon-containing compounds containing oxygen containing at least one Si—O bond
• C23C 16/44 - Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
• 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 27/10 - 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

A blast-resistant barrier comprising a plurality of units each including a panel having a thickness of greater than 20 to less than 40 millimeter is disclosed. The panel is in the form of a monolithic polycarbonate sheet or laminate that is positioned vertically between the source of a blast and the blast target, the laminate including at least two polycarbonate sheets and an optional image layer interposed therebetween. The panel is fixedly attached to a frame which is firmly embedded in concrete in a manner calculated to provide stiffness sufficient to absorb and withstand external forces resulting from said blast. In a preferred embodiment the panel includes at least two polycarbonate sheets laminated one to the other, optionally including an image layer interposed therebetween. In an additional embodiment, the frame is anchored securely to the target enabling dissipation of the blast force through the target's structure. The height of the blast-resistant barrier is preferably proportional to the height of the target.

IPC Classes  ?

• E04H 9/04 - Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate against air-raid or other war-like actions
• E04H 9/02 - Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
• E04C 2/26 - Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups , , , or of materials covered by one of these groups with a material not specified in one of these groups
• E04C 2/20 - Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the likeBuilding elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of plasticsBuilding elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of foamed products of plastics
• E04C 2/22 - Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the likeBuilding elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of plasticsBuilding elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of foamed products of plastics reinforced

Abstract

A thermoplastic molding composition characterized by its flame retardance and impact strength is disclosed. The composition contains (A) linear aromatic (co)polycarbonate, (B) a graft (co)polymer having core-shell morphology, the shell containing polymerized alkyl(meth)acrylate and the core containing interpenetrated and inseparable polyorganosiloxane and poly(meth)alkyl acrylate components, (C) a phosphorous-containing flame retardant compound, (D) fluorinated polyolefin and (E) a boron compound, and optionally SAN. The composition is further characterized in that it contains no polyalkylene terephthalate.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08L 51/00 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers
• C08K 5/49 - Phosphorus-containing compounds
• C08L 27/12 - Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogenCompositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
• C08K 3/38 - Boron-containing compounds
• C08L 67/03 - Polyesters derived from dicarboxylic acids and dihydroxy compounds the dicarboxylic acids and dihydroxy compounds having the hydroxy and the carboxyl groups directly linked to aromatic rings
• C08K 5/521 - Esters of phosphoric acids, e.g. of H3PO4
• C08K 5/00 - Use of organic ingredients

Abstract

A process of directly coating a metal substrate and curing the coating using radiation sources such as UV radiation having a wavelength of 200nm and above. Furthermore, compositions of the invention can be used as a tie-coat for coatings that do not bond well directly to various metal substrates.

IPC Classes  ?

• C09D 133/08 - Homopolymers or copolymers of acrylic acid esters
• C09D 175/06 - Polyurethanes from polyesters
• C09D 163/10 - Epoxy resins modified by unsaturated compounds

Abstract

This invention relates to freeze-stable aromatic diisocyanates, an to processes for the preparation of these freeze-stable aromatic diisocyanates. The preferred aromatic diisocyanate is preferably diphenylmethane diisocyanate. These freeze-stable aromatic diisocyanates comprise a blend of an aromatic diisocyanate, with 2,2,4- trimethyl-1,3-pentanediol diisobutyrate, and have an NCO group content of from about 6% to about 29% by weight. Suitable aromatic diisocyanates contain one or more of the following modifying groups: allophanate groups, carbodiimide groups, uretonimine groups, biuret groups, dimer groups, isocyanurate groups, urea groups and/or urethane groups. Prepolymers of these modified aromatic diisocyanates are also suitable for the present invention.

IPC Classes  ?

• C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
• C07C 291/10 - Isocyanides
• C08G 18/00 - Polymeric products of isocyanates or isothiocyanates
• C08G 18/32 - Polyhydroxy compoundsPolyaminesHydroxy amines
• C08G 18/72 - Polyisocyanates or polyisothiocyanates
• C08L 75/00 - Compositions of polyureas or polyurethanesCompositions of derivatives of such polymers

Abstract

This invention relates to flexible cycloaliphatic diisocyanate trimers and a process for the preparation of these. These flexible products are allophanate-modified, partially trimerized cycloaliphatic diisocyanates and are characterized by a low Tg. More specifically, the Tg of the resultant product ranges from about -30 °C to about 40 °C, after the excess monomer has been removed from the product.

IPC Classes  ?

• C08G 18/74 - Polyisocyanates or polyisothiocyanates cyclic
• C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain
• C08G 18/83 - Chemically modified polymers
• C08G 18/16 - Catalysts
• C08G 18/00 - Polymeric products of isocyanates or isothiocyanates