Class / Patent application number | Description | Number of patent applications / Date published |
525457000 | Mixed with -N=C=X reactant or polymer therefrom | 21 |
20080200620 | Spray Polyurea System, Process for Producing and Use Thereof - Polyurea spray system containing a polyisocyanate, a polyamine and an imidazoline-containing polyaminoamide as chain extender, suitable for use as internal coating of drinking water pipelines and storage tanks. | 08-21-2008 |
20080221279 | Process for the production of shape memory molded articles with a wide range of applications - The present invention relates to a process for the production of shape memory molded articles with a wide temperature application range, and their use in the he production of injection molded articles and extruded articles. | 09-11-2008 |
20080312386 | PROCESS FOR PRODUCTION OF URETHANE RESIN AND ADHESIVE AGENT - An object of the invention is to provide a process for urethane resin production in which the molecular weight of the urethane resin can be easily controlled regardless of the kind of polyisocyanate compound and which can yield a urethane resin for use as a removable pressure-sensitive adhesive usable in extensive applications ranging from a strong-tack region to a slight-tack region. The process for urethane resin production of the invention is a process for producing a urethane resin which comprises reacting a polyol with a first polyisocyanate compound in such a proportion that isocyanate groups are present in excess to thereby obtain an isocyanate-group-terminated prepolymer, subsequently reacting the isocyanate-group-terminated prepolymer with a chain extender, and further reacting the resultant polymer with a chain terminator, wherein the chain extender comprises a polyfunctional compound (X) having three or more functional groups reactive with an isocyanate group, wherein two of the functional groups of the polyfunctional compound (X) are primary hydroxyl groups and the remaining functional group(s) is secondary hydroxyl or tertiary hydroxyl group(s). | 12-18-2008 |
20090030161 | Allophanate modified diphenylmethane diisocyanates, prepolymers thereof, and their use in the preparation of polyureas and polyurethanes - This invention relates to novel allophanate-modified diphenylmethane diisocyanates, prepolymers of these allophanate-modified diphenylmethane diisocyanates, and two-component polyureas and one-component polyureaurethanes prepared from these prepolymers. In addition, the invention also relates to processes for the preparation of these various compositions, and to the preparation of sealants from the two-component polyureas and caulking agents from the one-component polyureaurethanes. | 01-29-2009 |
20090137750 | Process for preparing low-viscosity allophanates containing actinically curable groups - The present invention relates to a process for preparing low-viscosity reaction products of polyisocyanates containing activated groups which react, with polymerization, with ethylenically unsaturated compounds on exposure to actinic radiation. | 05-28-2009 |
20090240004 | FUNCTIONALIZED POLYURETHANE RESIN, METHOD FOR THE PRODUCTION THEREOF, AND USE THEREOF - Disclosed is a functionalized polyurethane resin containing a binder component, a hardener component and, optionally, a formulation component. The binder component consists essentially of urethane dispersions with defined structural components which, in turn, consist of special reaction products. Such polyurethane resins are used for the production of fluorine-modified polyurethane coatings and generally in construction or industrial applications for the permanent oil-, water- and dirt-resistant coating of mineral and non-mineral surfaces on the basis of, for example, hydraulically setting components. | 09-24-2009 |
20090286939 | METHOD FOR PRODUCING GOLF BALL - A method of manufacturing golf balls composed of a core and a cover of one or more layer that encloses the core, at least one cover layer being made of a thermoplastic polyurethane composition characterized by including at least 90 wt % of a thermoplastic polyurethane obtained by a polyurethane-forming reaction of an organic diisocyanate compound with a long-chain polyol and a chain extender, which thermoplastic polyurethane composition cover layer has an inherent viscosity in a DMF solvent of larger than 1.5 dl/g and an inherent viscosity in a 0.05 mol/L n-butylamine-containing DMF solution of larger than 0.5 dl/g, the golf ball manufacturing method being characterized by:
| 11-19-2009 |
20100144980 | RESIN POWDER COMPOSITION FOR SLUSH MOLDING AND MOLDED ARTICLES - The present invention provides a resin powder composition for slush molding which can give slush molded articles with more excellent hydrolysis resistance. The present invention relates to a resin powder composition for slush molding which is characterized by comprising as the main component a thermoplastic polyurethane resin powder, preferably a thermoplastic polyurethane elastomer powder, and containing a polycarbodiimide prepared by polymerizing tetramethylxylylene diisocyanate, alkoxy terminated one having a number average molecular weight of 500 to 30,000. | 06-10-2010 |
20100222524 | HIGH MODULUS TRANSPARENT THERMOPLASTIC POLYURETHANES CHARACTERIZED BY HIGH HEAT AND CHEMICAL RESISTANCE - Transparent thermoplastic polyurethanes characterized by high impact resistance, high flexural modulus, high chemical resistance and a deflection temperature under load of at least 50° C. at 264 psi are produced by blending a polyurethane reaction product with from 3 to 20 parts by weight, per 100 parts by weight of total blend, of a thermoplastic polyurethane. The polyurethane reaction product is prepared from a diphenylmethane diisocyanate and at least one chain extender at an NCO/OH ratio of from 0.95:1 to 1.10:1 in the absence of any isocyanate-reactive material having a molecular weight greater than 400. | 09-02-2010 |
20110136991 | ELASTOMERIC MATERIALS HAVING A HIGH HARDBLOCK CONTENT AND PROCESS FOR PREPARING THEM - Elastomeric material having a density of more than 100 kg/m | 06-09-2011 |
20110275767 | MOISTURE-CURABLE HOT MELT ADHESIVE - A moisture-curable hot-melt adhesive having an excellent balance of environmental friendliness, compatibility of ingredients, early-stage adhesive strength, heat resistance after moisture curing, tack free time, etc. and a method of manufacture for this hot-melt adhesive. A moisture-curable hot-melt adhesive which contains a urethane polymer that has a terminal isocyanate group and a moisture-curable hot-melt adhesive that contains urethane modified resin, has a residual percentage of isocyanate compound of 5 wt. % or less, and has a heat-resistant softening temperature after moisture curing of 60° C. or higher, has an excellent balance of the aforementioned. Urethane modified resin can be obtained by reacting a resin derivative that has a hydroxyl group with an isocyanate compound, and a moisture-curable hot-melt adhesive can be produced by mixing urethane-modified resin, polymer, and isocyanate compound. The adhesive is particularly useful for building materials, electronics materials, the automotive field, and the like. | 11-10-2011 |
20120259074 | POLYURETHANE ELASTIC YARN AND PRODUCTION METHOD THEREOF - [Problem] To provide a polyurethane elastic yarn which has the high strength and ductility sought in polyurethane elastic yarn, and also has excellent durability and heat resistance, as well as little fatigue at low temperature; and a production method thereof. | 10-11-2012 |
20130158210 | REDUCTION OF THE FRACTION OF MONOMERS COMPRISING ISOCYANATE GROUPS IN MOISTURE-CURING POLYURETHANE COMPOSITIONS - The invention relates to a composition having at least one polyurethane polymer comprising isocyanate groups, at least one monomer comprising isocyanate groups, and at least one silicon dioxide comprising on its surface functional groups which are reactive with respect to isocyanate groups. The silicon dioxide is present in the form of particles which have an average particle size of ≦100 μm and a specific surface area of ≧100 m | 06-20-2013 |
20130274423 | Low Friction Polymeric Compositions As Well As Devices And Device Fabrication Methods Based Thereon - A polymer blend is provided that includes a polycarbonate polyurethane polymer component having a water contact angle greater than 75 degrees and a polyurethane polymer component having a water contact angle less than 75 degrees. The polycarbonate polyurethane component and the other polyurethane polymer can be immiscible with respect to one another, and thus are phase separated in the polymer blend. The weight percentage of the polycarbonate polyurethane polymer component is greater than the weight percentage of the other polyurethane polymer component in the blend. The polymer blend is well suited for realizing a low friction surface of a variety of medical and non-medical devices. | 10-17-2013 |
20150344614 | Non-hot-melt MDI-based polyurethane composition bearing NCO end groups and having a low content of MDI monomer, comprising at least one isocyanate compound of particular molar volume - 1) Polyurethane composition comprising:
| 12-03-2015 |
525458000 | Contains polyhydroxy reactant; or additional polymer derived from -N=C=X and polyhydroxy reactant | 6 |
20090240005 | DISPERSION ADHESIVES - The invention relates to aqueous dispersion adhesives based on a mixture of aqueous polyurethane or polyurethane-urea dispersions, to a process for their preparation, and to the use of the dispersion adhesives in the production of adhesive composites. | 09-24-2009 |
20090312502 | Method for preparing polyhydroxy-urethanes - The invention relates to a method for preparing polyhydroxy-urethanes without using a compound having an isocyanate function, and from amino compounds and compounds carrying carbonate functions, in particular cyclic carbonate functions. The invention also relates to a method for preparing aqueous or hydro-organic formulations containing polyhydroxy-urethanes, and to the use of said polyhydroxy-urethanes and of said aqueous or hydro-organic formulations. | 12-17-2009 |
20120077942 | Materials Comprising a Matrix and Process for Preparing Them - The present invention is concerned with a material comprising: a matrix material comprising a plurality of urethane and/or urea and/or isocyanurate groups and having a hardblock content of more than 75% (hereinafter called matrix A); and a polymeric material which 1) has no groups which are able to form a urethane, urea or isocyanurate group with an isocyanate group, 2) exhibits a phase change as measured by differential scanning calorimetry (DSC) in the temperature range −10° C. to +60° C. with an enthalpy ΔHm of at least 87 kJ/kg, 3) is interpenetrating said matrix A, and 4) has an average molecular weight of more than 700 and comprises at least 50% by weight of oxyalkylene groups, based on the weight of this material, wherein at least 85% of the oxyalkylene groups are oxyethylene groups (hereinafter called polymeric material B); and wherein the relative amount of said matrix A and of said polymeric material B, on a weight basis, ranges from 15:85 to 75:25. Process for preparing such material. | 03-29-2012 |
20120088889 | POLYURETHANE ON THE BASIS OF SOFT THERMOPLASTIC POLYURETHANE - The invention relates to polyurethanes based on a thermoplastic polyurethane and an isocyanate concentrate having a functionality greater than 2 and less than 10 added to the thermoplastic polyurethane, wherein the hard phase content of the thermoplastic polyurethane is in the range from 0% to 5% and the isocyanate concentrate is added in an amount of at least 2% by weight based on the polyurethane PU-1. | 04-12-2012 |
20140094571 | POLYURETHANE ON THE BASIS OF SOFT THERMOPLASTIC POLYURETHANE - The invention relates to polyurethanes based on a thermoplastic polyurethane and an isocyanate concentrate having a functionality greater than 2 and less than 10 added to the thermoplastic polyurethane, wherein the hard phase content of the thermoplastic polyurethane is in the range from 0% to 5% and the isocyanate concentrate is added in an amount of at least 2% by weight based on the polyurethane PU-1. | 04-03-2014 |
20140128554 | POLYURETHANE RESIN COMPOSITION AND HOLLOW FIBER MEMBRANE MODULE PRODUCED USING SAME - The polyurethane resin composition comprises a main agent (I) which comprises an urethane prepolymer (A) with an isocyanate group terminal and a hardener (II) which comprises an urethane prepolymer (B) with a hydroxyl group terminal, wherein the urethane prepolymer (B) with the hydroxyl group is a product of reaction between a polyol ingredient (a) comprising a castor oil-based polyol (a1) and a polyisocyanate (b) can inhibit the hollow fiber membranes from clogging, regardless of the kind thereof, when the composition is used as a binder for hollow fiber membranes. | 05-08-2014 |