The invention relates to a new polyisocyanate composition for producing coatings, said composition comprising at least one monophenol alkyl compound, a mixture of phosphite compounds for preventing yellowing and/or precipitation of the composition, and optionally, a catalyst.
The invention relates to a new polyisocyanate composition for producing coatings, said composition comprising at least one monophenol alkyl compound, a mixture of phosphite compounds for preventing yellowing and/or precipitation of the composition, and optionally, a catalyst.
The invention relates to a method for producing xylylene diisocyanate (XDI), in particular meta-xylylene diisocyanate (mXDI), comprising the following steps: a) phosgenation of xylylene-diamine (XDA), in particular m-xylylene-diamine (mXDA) in the case of mXDI; b) eliminating the hydrochloric acid from the reaction medium obtained in step (a) at a temperature of between 120 and 190°C and a pressure of between 1 mbar and 20 bar.
The invention relates to the field of polyisocyanate compositions for the production of coatings and adhesives. The composition according to the invention combines a polyisocyanate compound with biuret motifs, a protic, polar reactive diluent compound, one of the addition compounds thereof, and an aprotic reactive diluent compound. The invention also relates to a method for producing the composition according to the invention, and to the use thereof for producing a coating or an adhesive.
C08G 18/79 - Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
C08G 18/09 - Processes comprising oligomerisation of isocyanates or isothiocyanates involving reaction of a part of the isocyanate or isothiocyanate groups with each other in the reaction mixture
C08G 18/36 - Hydroxylated esters of higher fatty acids
C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
C07C 275/60 - Y being an oxygen atom, e.g. allophanic acids
C07C 275/62 - Y being a nitrogen atom, e.g. biuret
C08G 18/62 - Polymers of compounds having carbon-to-carbon double bonds
The invention relates to a modified allophanate compound bearing acrylate functions, resulting from the reaction of a particular allophanate with an ester from the reaction between an acid selected from acrylic acid and methacrylic acid and at least one polyol that does not contain an oxylakylene or aa (poly)oxyalkylene group. The invention further relates to the use of said modified allophanate for preparing a hydrophobic cross-linkable coating composition by means of UV radiation.
C07C 275/60 - Y being an oxygen atom, e.g. allophanic acids
C09D 4/00 - Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond
C08G 18/67 - Unsaturated compounds having active hydrogen
The invention relates to a composition for preparing (poly)urethane from an allophanate and from a hydrophobic resin. The invention also relates to the use of this composition as a replacement for poly(methylene diphenyl diisocyanate) (pMDI), in particular for the preparation of a material for encapsulating an electrical device.
39 - Transport, packaging, storage and travel services
Goods & Services
Administration relating to marketing; Administrative processing of purchase orders; Advertising and marketing; Direct marketing; Business advisory and information services; Public relations services. Arranging transportation of goods; Computerised transport information services; Packaging and storage of goods; Storage and delivery of goods; Freight brokerage; Information services relating to the transportation of goods; Consultancy services relating to transportation; Reservation and booking services for transportation.
The invention relates to a composition for producing a coating comprising (a) a compound comprising at least two secondary amino functions and (b) an isocyanate component comprising an allophanate and a polyfunctional isocyanate, and (c) optionally a solvent. The invention also relates to the use of said composition for producing a coating with improved hydrophobicity, and for improving the pot life duration (pot life property) of a formulation for paint or for varnish, or for improving the opening time of a film or a layer resulting from the application of said composition.
The invention relates to a modified allophanate compound bearing acrylate functions, resulting from the reaction of a particular allophanate with an ester from the reaction between an acid selected from acrylic acid and methacrylic acid and at least one polyol that does not contain an oxylakylene or a (poly)oxyalkylene group. The invention further relates to the use of said modified allophanate for preparing a hydrophobic cross-linkable coating composition by means of UV radiation.
The invention relates to a composition for preparing (poly)urethane from an allophanate and from a hydrophobic resin. The invention also relates to the use of this composition as a replacement for poly(methylene diphenyl diisocyanate) (pMDI), in particular for the preparation of a material for encapsulating an electrical device.
C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
H01B 3/30 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances plasticsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
Industrial chemicals; industrial chemicals used in the manufacture of paints, varnishes, lacquer, adhesives, resins, packing, stuffing and insulating materials
A process for the preparation of an allophanate of one or more identical or different isocyanates, compositions obtained by the process, and uses of the compositions are disclosed. The process comprises reacting an isocyanate with at least one monoalcohol comprising an ether or polyether functional group in the presence of a bismuth-comprising catalyst and a metal compound as co-catalyst.
A process for phosgenating an amine comprising employing a plug-flow type reactor with internal recycle is disclosed. The process can be continuous, which makes it possible to prepare, in a single stage, a (poly)isocyanate with a good yield, without formation of byproducts and on simplifying the plant in order to carry out the process so as to promote safety.
3 are formulated into aqueous emulsions which advantageously further comprise a compound, bearing a mobile hydrogen function, or a compound containing precursor functions capable of liberating hydroxyl functions, and are useful for producing coatings on a variety of substrates, e.g., made of cement, wood or leather in particular, and also for producing adhesives.
C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
C08L 75/00 - Compositions of polyureas or polyurethanesCompositions of derivatives of such polymers
at least one surfactant comprising an acid or a mixture of acids and an optionally heterocyclic amine or polyamine or a mixture of such amines, the amine or polyamine or at least one amine of said mixture carrying at least one alkylene oxide, preferably ethylene oxide, functional group.
2 are identical or different and independently represent a hydrocarbonated chain. Said mixture of compounds of formulae (I) and (II) is characterized in that the molar ratio between compound (II) and compound (I) is higher than 1.
The present invention relates to a process for preparing dinitrotoluene. The process of the invention for preparing dinitrotoluene from mononitrotoluene, which comprises carrying out a mononitrotoluene nitration reaction using a nitrating mixture comprising nitric acid, sulphuric acid and water resulting in a two-phase medium and separating the organic and aqueous phases of said two-phase medium, is characterized in that the mononitrotoluene nitration is carried out using a nitrating mixture comprising at most 10% by weight of water resulting in a two-phase medium, in that the organic and aqueous phases of said two-phase medium are separated, and in that the aqueous phase derived from the separating operation is recycled, at the end of the mononitrotoluene nitration reaction and before the separation of the organic and aqueous phases, such that the weight ratio of the aqueous phase to the organic phase is at least equal to 1.2.
C07C 205/00 - Compounds containing nitro groups bound to a carbon skeleton
20.
Mixture based on a polyisocyanate and a solvent of ether ester type, aqueous emulsion obtained from this mixture and use of this emulsion for the manufacture of coatings and adhesives
The mixture of the invention comprises at least one cycloaliphatic polyisocyanate and at least one solvent comprising an ester function and an ether function. An aqueous emulsion can be obtained from this mixture which also comprises a compound bearing a function with a mobile hydrogen, selected from primary or secondary hydroxyl functions, phenol functions, primary and/or secondary amino functions, carboxylic functions and a thiol function or a compound containing precursor functions capable of freeing hydroxyl functions. The emulsion can be used for the manufacture of coatings on a substrate of cement, of wood or especially of leather, and also for the manufacture of adhesives.
B05D 3/02 - 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 baking
C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
C08J 3/00 - Processes of treating or compounding macromolecular substances
21.
Composition containing a modified (poly) isocyanate and a solvent of the acetal or aliphatic ketone type, and use of said composition for producing coatings
The invention relates to a modified (poly)isocyanate composition that contains a modified (poly)isocyanate and at least one solvent. The invention also relates to the use of this composition for preparing coatings such as paints and varnishes.
C08G 18/00 - Polymeric products of isocyanates or isothiocyanates
C08G 18/79 - Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
Compositions that can be polymerized and/or crosslinked into coatings by cationic and/or radical irradiation contain at least one photoinitiator and at least one compound having at least one isocyanate function.
C07D 303/40 - Compounds containing oxirane rings with hydrocarbon radicals, substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals by ester radicals
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 9/00 - Layered products essentially comprising a particular substance not covered by groups
B32B 33/00 - Layered products characterised by particular properties or particular surface features, e.g. particular surface coatingsLayered products designed for particular purposes not covered by another single class
The invention relates to the use of additived (poly)isocyanate compositions for producing coatings, especially paints or varnishes for car bodywork parts, said compositions having excellent impact-resistant properties, especially grit-resistant properties.
