| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 528059000 | From N=C=X reactant having at least two -C-NH-C(=X)- groups | 76 |
| 20080287638 | Supramolecular Polymers Associative to Carbon Nanotubes - A supramolecular polymer and its composite with carbon nanotubes, CNTs, are described. The supramolecular polymer is an ensemble of precursors that independently contain “sticky feet” for non-covalent binding to carbon nanotube surfaces and associative groups. There is at least one of the associative groups covalently bound to each of the precursor and there is at least one covalently connecting moiety connecting associative groups within a precursor or connecting an associative group to a linker to a “sticky foot” in a precursor. When the associative groups are in a dissociative state, the supramolecular polymer precursors and CNTs can be combined to form a dispersion. Upon promotion, the dissociated associative groups in the dispersion can associate to yield a CNT/supramolecular polymer composite. | 11-20-2008 |
| 20080312403 | AROMATIC URETHANE ACRYLATES HAVING A HIGH REFRACTIVE INDEX - The invention relates to novel aromatic urethane (meth)acrylates having a high refractive index, a process for the preparation thereof and a process for the production of holographic media. | 12-18-2008 |
| 20090036630 | Process for Producing Allophanate Group-Containing Polyisocyanates, Urethane Prepolymers, and Polyurethane Resin Compositions - Polyurethane resin compositions include a urethane prepolymer with an active hydrogen group and a polyisocyanate, or a urethane prepolymer with an isocyanate group and an active hydrogen compound. The urethane prepolymers having an active hydrogen group or an isocyanate group are obtained by reacting an allophanate group-containing polyisocyanate with a side-chain hydrocarbon group of 5 or more carbon atoms and a bifunctional or polyfunctional active hydrogen compound. Particularly preferably, the allophanate group-containing polyisocyanate is obtained by reacting a C5 or higher carbon number compound having an alcoholic hydroxyl group and an organic diisocyanate, in the presence of an organic bismuth carboxylate and an organic phosphite triester. The polyurethane resin compositions are suited for use as adhesives for bonding low-polarity resin bases such as polyolefin films. | 02-05-2009 |
| 20090062500 | 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, ethylenically unsaturated groups which react, with polymerization, on exposure to actinic radiation. | 03-05-2009 |
| 20090118457 | Resorcinol-based mannich base - The invention relates to Mannich bases that can be produced from resorcinol, formaldehyde, and triethylenetetramine and/or tetraethylenepentamine. Also disclosed are a method for the production thereof and the use thereof as hardeners for amine-reactive compounds. The inventive Mannich bases are particularly suitable as hardener components in adhesives. | 05-07-2009 |
| 20090131621 | Speeding Cure Rate Of Bioadhesives - The present disclosure provides compositions having reduced viscosity which may be used as adhesives or tissue sealants, and includes methods for speeding the cure rate of such compositions. | 05-21-2009 |
| 20090156778 | Process for producing low-monomer-content organic polyisocyanates - The invention relates to a new industrial process for producing low-monomer-content organic polyisocyanates by oligomerization of organic diisocyanates in a two-phase system. | 06-18-2009 |
| 20090176961 | Polyamide-imide resin insulating paint and insulation wire using same - A polyamide-imide resin insulating paint according to the present invention includes polyamide-imide resin containing no halogen element in its molecular chain which is dissolved in a polar solvent, in which the polyamide-imide resin contains an aromatic diisocyanate component (A) having three or more benzene rings or an aromatic diamine component (E) having three or more benzene rings in a monomer, and a ratio M/N between a molecular weight (M) of the polyamide-imide resin per repeat unit and an average number (N) of amide groups and imide groups is equal to or more than 200. | 07-09-2009 |
| 20090240019 | IMIDE-MODIFIED ELASTOMER - An imide-modified elastomer represented by the following general formula (I): | 09-24-2009 |
| 20090270581 | Aqueous Radiation Curable Polyurethane Compositions - The invention relates to radiation-curable aqueous composition comprising an (meth)acrylated polyurethane prepolymer obtained from the reaction of a polyisocyanate, optionally a polyol, at least one hydrophilic compound containing at least one reactive group capable to react with isocyanate groups and which is capable to render the polyurethane pre-polymer dispersible in aqueous medium either directly or after the reaction with a neutralizing agent to provide a salt, an (meth)acrylated compound containing at least two reactive groups capable to react with isocyanate groups and an (meth)acrylated compound containing essentially one reactive group capable to react with isocyanate groups, said composition comprising an amount of (meth)acrylated and polymerizable ethylenically unsaturated groups of at least 3 meq per g. | 10-29-2009 |
| 20090286949 | Fluoropolymer compositions and treated substrates - A polymer having at least one carbamate linkage prepared by: (i) reacting (a) at least one diisocyanate, polyisocyanate, or mixture thereof, and (b) at least one fluorinated compound selected from the formula (I): | 11-19-2009 |
| 20100004421 | RESIN COMPOSITION FOR OPTICAL MATERIAL AND OPTICAL MATERIAL USING THE SAME - According to the present invention, a resin compound for optical material, comprising (a) an episulfide compound represented by a specific structural formula, (b) a xylylenedithiol compound and (c) a xylylenediisocyanate compound can be provided. In a preferable embodiment of the present invention, a resin compound for optical material having superb optical properties, a high density and a high thermal resistance can be provided. Also according to the present invention, an optical material obtained by curing the above-described resin compound can be provided. | 01-07-2010 |
| 20100130716 | CROSSLINKED MATERIAL OF PROPYLENE POLYMER - The present invention provides a crosslinked material of a propylene polymer (A) obtainable by crosslinking the propylene polymer (A) comprising a constitutional unit derived from propylene in an amount of not less than 50 mol %, and having a Shore D hardness of not more than 57 as measured in accordance with ASTM D 2240, and a thermal deformation of not more than 10% as measured at 180° C. under a load of 1.1 Kg in accordance with JIS C3005. The crosslinked material of the propylene polymer (A) having the above composition and physical properties has high flexibility, and excellent heat resistance and excellent scratch resistance. | 05-27-2010 |
| 20100249360 | LAMINATING ADHESIVE - [Solution to Problem] The laminating adhesive of the present invention includes a polyisocyanate component (A) and a polyol component (B), wherein the polyisocyanate component (A) contains a polyisocyanate (A1) that does not contain an aromatic ring, and the polyol component (B) contains a macropolyol (B1) that does not contain an aromatic ring but contains a cyclohexane ring. | 09-30-2010 |
| 20100280211 | FAST CURABLE EPOXY COMPOSITIONS CONTAINING IMIDAZOLE-AND 1 -(AMINOALKYL) IMIDAZOLE-ISOCYANATE ADDUCTS - Epoxy curing agents comprising imidazole-isocyanate adducts, including 1-(aminoalkyl)imidazole-isocyanate adducts and especially 1-(3-aminopropyl)imidazole-isocyanate adducts, and their use as curing agents in heat curable one-component epoxy resin compositions. Epoxy curing agents comprising imidazole-isocyanate adducts comprising the reaction product of at least one imidazole, at least one polyisocyanate and at least one diamine. | 11-04-2010 |
| 20100286357 | RESIN COMPOSITION FOR TONER AND METHOD FOR PREPARING RESIN COMPOSITION FOR TONER - The present invention aims to provide a resin composition for toners which enables to obtain a toner having excellent low temperature fixability and high temperature offset resistance, and a toner. The resin composition for toners is obtained by reacting a mixture of a branched polyester (A) having a number average molecular weight of 2,000 to 7,000 and a hydroxyl value of 20 to 80, and a low molecular weight linear polyester (B) having a number average molecular weight of 2,000 to 5,000 and a hydroxyl number of 20 to 55, with an isocyanate compound containing two or more isocyanate groups in one molecule, which comprises a crosslinked structure of said branched polyester (A), a structure in which said branched polyester (A) and said low molecular weight linear polyester (B) are bonded by said isocyanate compound, and an unreacted portion of said low molecular weight linear polyester (B). | 11-11-2010 |
| 20120271027 | POLYURETHANE OLIGOMERS FOR USE IN RESTORATIVE DENTISTRY - A composition of dental filling materials comprising a urethane oligomer obtained from a reaction between natural oil-derived polyols and a diisocyanate in excess to create terminals of isocyanate groups, the oligomer being grafted with an unsaturated acrylic monomer having hydroxyl groups which could react with the isocyanate terminals, and the resulting dental material being curable by free radical initiation. | 10-25-2012 |
| 20130109829 | RESIN COMPOSITION CONTAINING AROMATIC POLYISOCYANATE COMPOUND, BISPHENOL EPOXY RESIN AND IMIDAZOLE COMPOUND, AND HIGHLY THERMO-RESISTANT ISOCYANURATED CURED MATERIAL FORMED FROM THE SAME | 05-02-2013 |
| 20130303721 | METHOD FOR MANUFACTURING RESIN FOR URETHANE-BASED OPTICAL MATERIAL, RESIN COMPOSITION FOR SAME, AND OPTICAL MATERIAL MANUFACTURED THEREBY - A method of preparing an optical material by polymerizing a resin composition including a thiol group-containing compound and an isocyanate group-containing compound, particularly, a method of preparing a high-quality urethane-based optical material using a universal polyisocyanate compound. According to one aspect, a resin composition including a polythiol compound and a widely available polyisocyanate compound, as main components, and having a moisture content of 300 to 3,000 ppm is template-polymerized to prepare the optical material. A colorless, transparent, and high-quality urethane-based optical material may be efficiently prepared in high yield using a low-cost and widely available isocyanate compound through template-polymerization using a tape while minimizing generation of white tape residues and foaming. | 11-14-2013 |
| 20160200857 | DUAL CURE COMPOSITE RESINS CONTAINING URETDIONE AND UNSATURATED SITES | 07-14-2016 |
| 528060000 | With reactant compound containing three or more XH, -C(=X)-XH, -NH, =NH, or HNH groups or combination thereof | 20 |
| 20090048419 | POLYURETHANE ELASTOMER - A polyurethane elastomer obtained by reacting at the least a di, tri or polyisocyanate, a polycarbonate diol and a di, tri or polyalcohol characterized in, that said polycarbonate diol is at least one polycarbonate diol of a 2-alkyl-1,3-propanediol, a 2,2-dialkyl-1,3-propanediol, an alkoxylated 2-alkyl-1,3-propanediol and/or an aldoxylated 2,2-dialkyl-1,3-propanediol and/or is at least one polycarbonate diol comprising units from two or more said 1,3-propanediols, wherein alkyl is a linear or branched aliphatic alkanyl having 1-8 carbon atoms and alkoxylated is ethoxylated, propoxylated and/or butoxylated having 1-20 alkoxy units. | 02-19-2009 |
| 20090048420 | Process for the preparation of polyols - The present invention provides polyols which can be obtained by a simple process. These polyols, unless explicitly specified, are to be understood to encompass both polyether polyols and polyether ester polyols. The invention further provides the simple process for the production of the polyols, and also, the production of polyurethanes comprising reacting a polyol according to the invention with a polyisocyanate. | 02-19-2009 |
| 20090054613 | FAST DRYING POLYURETHANE COMPOSITION - A fast drying polyurethane coating composition wherein the reactants comprise (a) a first component comprising one or more polyol compounds having a glass transition temperature of less than or equal to about 25° C., and preferably an Mw of 5000 or less, preferably acrylic or polyester polyols, and (b) a second component, comprising the reaction of a (poly)isocyanate oligomer having an average NCO functionality of greater than 2, for example a biuret with an NCO functionality of 3, with a compound X comprising a substrate portion comprising one or more cycloaliphatic rings, one or more heterocyclic rings, one or more aromatic rings, or a particle of a crosslinked polymer, and functional groups covalently bonded to such substrate portion, for example hydrogenated bisphenol A (HBPA). | 02-26-2009 |
| 20090076239 | HIGH PERFORMANCE POLYURETHANE ELASTOMERS FROM MDI PREPOLYMERS WITH REDUCED CONTENT OF FREE MDI MONOMER - Polyurethane prepolymers having a reduced amount of unreacted monomeric diisocyanate, particularly diphenylmethane diisocyanate (MDI), prepared by distilling the prepolymer reaction product in the presence of at least one inert solvent whose boiling point is slightly below that of the monomeric diisocyanate; and to high performance cast polyurethane elastomers from the thus obtained prepolymers using diamine and/or diol chain extenders. | 03-19-2009 |
| 20090099329 | Polythiourethane-based polymerizable composition and optical resin obtained from the same - Provided are a polymerizable composition for giving a resin which has a high refractive index and low dispersion, and is especially excellent in impact resistance and tintability; and a resin and an optical component each obtained by curing the composition. There used a polymerizable composition comprising (A) a compound represented by Formula (1) and/or by Formula (2), at least one compound as the following component (B), and at least one compound as the following component (C): | 04-16-2009 |
| 20090149621 | Polyurethanes cured with amines and their preparation - Polyurethane prepolymers are described which are prepared from 2,4′-diiso-cyanate diphenylmethane (2,4′-MDI), a polyol component and an aliphatic diisocyanate. These prepolymers can be cured with aliphatic, cycloaliphatic and/or aromatic amines to form a cured urethane elastomer. In comparison to cured urethane elastomers based on monomeric 2,4′-MDI, these prepolymers provide elastomers with extended pour life, i.e. they exhibit a slower rate of viscosity buildup after curative and prepolymer are mixed which results in a reduced propensity to crack during the curing process and gives the opportunity to cast larger parts. In comparison to polyurea/urethanes prepared from cured TDI-prepolymers and which optionally include H12-MDI, the prepolymers of the invention have better health and safety aspects. | 06-11-2009 |
| 20090209723 | POLYURETHANE RESINS, A METHOD FOR THE PRODUCTION THEREOF AND OPTICAL LENSES MADE OF SAID RESINS - The invention relates to polyurethane resins for producing impact-resistant optical lenses, in particular ophthalmic lenses made by using said resins and to a method for producing said lenses, in particular for using thermosetting polyurethane resin for producing the optical lenses, wherein said resin comprises a part (I) corresponding to an isocyanate part containing. A) a methylene-bis-4,4′-isocyanatecyclohexane (Hi2MDI), b) a prepolymer obtainable by the reaction between propoxilated glycerol and a methylene-bis-4,4′-diisocyanatecyclohexane and a part (II) corresponding to an alcohol part containing: c) an alkoxylated etherate glycerol in the monomer and oligomer form thereof and d) at least one type of a polyalkoxylated tertiary diamine tetraol and/or triol. | 08-20-2009 |
| 20090247721 | PREPOLYMERS - The invention relates to novel prepolymers which are accessible from the formamides of oligomeric di- or polyamines (formamide-terminated oligomers) and di- or polyisocyanates. | 10-01-2009 |
| 20090264613 | PROCESS FOR PRODUCING (POLY)THIOL COMPOUND FOR USE AS OPTICAL MATERIAL, AND POLYMERIZABLE COMPOSITION CONTAINING THE COMPOUND - Disclosed is a process for producing a (poly)thiol compound for an optical material. The process comprises reacting an organic (poly)halogen compound or a (poly)alcohol compound with thiourea to produce an isothiuronium salt and hydrolyzing the isothiuronium salt to thereby produce the (poly)thiol compound, wherein the thiourea has a calcium content of not more than 1.0 wt %. | 10-22-2009 |
| 20090270582 | HYPER-BRANCHED POLYURETHANES METHOD FOR PRODUCTION AND USE THEREOF - A hyperbranched polyurethane which is obtainable by reacting a diisocyante or polyisocyanate with a triol of the formula (1) | 10-29-2009 |
| 20090281268 | METHODS FOR PREPARING POLYURETHANES - The present invention provides methods for preparing polyurethanes from reaction components including: (a) reacting about 1 equivalent of at least one polyisocyanate; and about 0.1 to about 0.5 equivalents of at least one polyol having 2 to 18 carbon atoms to form an isocyanate functional urethane prepolymer; and (b) reacting the isocyanate functional urethane prepolymer, about 0.05 to about 1.0 equivalents of at least one branched polyol having 4 to 18 carbon atoms and at least 3 hydroxyl groups; and up to about 0.9 equivalents of at least one polyol different from the branched polyol and having 2 to 18 carbon atoms, wherein the reaction components are essentially free of polyester polyol and polyether polyol, as well as methods for preparing polyurethanes using a one pot process. | 11-12-2009 |
| 20100048852 | High impact poly(urethane urea) polysulfides - The present invention relates to a sulfur-containing polyureaurethane and a method of preparing the polyureaurethane. The sulfur-containing polyureaurethane has a refractive index of at least 1.57, an Abbe number of at least 32 and a density of less than 1.3 grams/cm | 02-25-2010 |
| 20100204428 | Process and Composition for the Preparation of Transparent Polyurethanes and Polyurethanes Obtained Therefrom - A process for the preparation of transparent polyurethanes is disclosed, comprising step a) of preparing a prepolymer by reaction of one or more aliphatic or cycloaliphatic isocyanates, having two or more isocyanate groups, and one or more polyhydroxy compounds, having two or more hydroxy groups and a molecular weight ranging from 150 to 2000, step b) of preparing a composition comprising one or more polyhydroxy compounds, having two or more hydroxy groups and a molecular weight ranging from 150 to 2000 and a functionality from 2 to 5, and a suitable catalyst, and step c) of reacting the so-obtained prepolymer with the composition of step b), wherein at the end of step a) the percentage of free isocyanate groups in the prepolymer is at least 15%. In the preferred disclosed process, the percentage of free isocyanate groups in the prepolymer is from 15 to 30%. Particularly, a composition for the preparation of transparent polyurethanes and polyurethanes obtainable by said process are disclosed. | 08-12-2010 |
| 20100204429 | METH (ACRYLATE) FUNCTIONAL POLYURETHANE AND METHOD OF MAKING - The present invention relates to a powder coating composition comprising the reaction product of (a) a polyisocyanate with (b) the reaction product of (i) a polyol having at least three hydroxyl groups, one of which is less reactive than the other hydroxyl groups, and (ii) a (meth)acrylic acid or functional equivalent thereof, in which the equivalent ratio of (ii) to (i) is (n−1):n, where n is the hydroxyl functionality of the polyol, and the equivalent ratio of (a) to (b) is about 1:1. | 08-12-2010 |
| 20100292430 | POLYMERIZABLE COMPOSITION FOR OPTICAL MATERIAL, OPTICAL MATERIAL AND METHOD FOR PRODUCING OPTICAL MATERIAL - Disclosed is a polymerizable composition for o an optical material containing tolylene diisocyanate, hexamethylene diisocyanate, and one or more polythiol compounds selected from the group consisting of 4-mercaptomethyl-1,8-dimercapto-3,6-dithiaoctane,4,8-, 4,7- or 5,7-dimercaptomethyl-1,11-dimercapto-3,6,9-trithiaundecane, pentaerythritol tetrakismercaptoacetate, pentaerythritol tetrakismercaptopropionate, 2,5-bis(mercaptomethyl)-1,4-dithiane, bis(mercaptoethyl)sulfide, 1,1,3,3-tetrakis(mercaptomethylthio)propane, 4,6-bis(mercaptomethylthio)-1,3-dithiane and 2-(2,2-bis(mercaptomethylthio)ethyl)-1,3-dithietane. | 11-18-2010 |
| 20100317820 | Polyol Functionalized Water Soluble Carbon Nanostructures - A method of making a water soluble carbon nanostructure includes treating a fluorinated carbon nanostructure material with a polyol in the presence of a base. A water soluble carbon nanostructure comprises a fluorinated carbon nanostructure covalently bound to a polyol. Exemplary uses of water soluble carbon nanostructures include use in polymer composites, biosensors and drug delivery vehicles. | 12-16-2010 |
| 20130090449 | Biobased Polyester Diols And Polyols From High Molecular Weight Polyhydroxyalkanoates - Methods for producing biobased hydroxyl-terminated polyester polymers are described wherein molten-dispersed or hydrocarbonaceous fluid-dispersed phase polyhydroxyalkanoate polymers are reacted with a difunctional hydroxylated insertion compound at a sufficient temperature and time to depolymerize the starting polyester polymers to provide hydroxyl-terminated reaction products of reduced molecular weight. The difunctional hydroxylated insertion compound can be at least one of diol, aminoalcohol, and polyhydroxyalcohol. The use of catalyst may be required, reduced or eliminated. The hydroxyl-terminated reaction product is at least one of hydroxyl-terminated polyhydroxyalkanoate. A method for making polyurethanes further is described wherein the hydroxyl-terminated reaction product is reacted with polyfunctional isocyanate to form a polyurethane product. Products that include the hydroxyl-terminated reaction product or polyurethane also are described. | 04-11-2013 |
| 20130211033 | PROCESS FOR FUNCTIONALIZATION OF UNSATURATED COMPOUNDS - The present invention relates to a process for synthesizing a multifunctional compound, including the reaction of a compound of formula (II) with atmospheric or molecular oxygen, in the presence of at least one aldehyde of formula (III), and optionally in the presence of at least one catalyst or at least one radical initiator; wherein: R | 08-15-2013 |
| 20130296522 | POLYURETHANE USEFUL FOR ORTHOPEDICS EXTERNAL FIXING SYSTEM IN COMPLEX ENVIRONMENT AND PREPARATION METHOD THEREOF - A polyurethane used for orthopedics external fixing system in complex environment is obtained by reaction of mixture of polyether polyol with modified isocyanate in the weight ratio of 1:0.6-0.75. The modified isocyanate is obtained by reaction of polyphenyl polymethylene isocyanate with polyether diol. The components and corresponding weight percents of the mixture of polyether polyol are as follows: 60-65% polyether polyol as shown by formula (I), in the formula, m is an integer of 7-15, R represents mannitol, sucrose or pentaerythritol; 0.3-1% catalyst; 0.1-2% foam stabilizer; 0.1-2% or 3-20% foaming agent; 25-40% filler and 0.5-2% functional auxiliary agent. The method of producing the polyurethane is also provided. | 11-07-2013 |
| 20140094585 | Polymers Containing Metathesized Natural Oil Derivatives - Polymers containing natural oil derivatives are generally disclosed. Methods of forming such polymers are also generally disclosed. In some embodiments, the polymer is a polyurethane. In some embodiments, the natural oil derivative is a cross-linking group that links two or more polymer chains together. | 04-03-2014 |
| 528061000 | With organic nitrogen reactant which contains two NH, =NH, or HNH groups | 9 |
| 20090182113 | SEGMENTED POLYURETHANE ELASTOMERS WITH HIGH ELONGATION AT TEAR - The present invention relates to a process for producing a polyurethane elastomer fiber, which comprises a) reacting polymeric diol with a substance reactive therewith to form an OH-terminated prepolymer, b) reacting the OH-terminated prepolymer with a diisocyanate to form an isocyanate-terminated prepolymer, c) reacting the isocyanate-terminated prepolymer with a chain extender, if appropriate a chain-terminating agent and if appropriate further additives to form the polyurethane elastomer, and d) spinning the polyurethane elastomer to form a fiber, in which there are less than 15% by weight of further polyurethane elastomers in the fiber. The present invention further relates to a polyurethane elastomer fiber obtainable by such a process, to its use for producing textiles, for example wovens or knits, and also to the use of a polyurethane elastomer for producing such a fiber. | 07-16-2009 |
| 20090318656 | Polyetheramine Macromonomers Comprising Two Neighboring Hydroxyl Groups And Their Use For Producing Polyurethanes - The object of the invention are compounds of the formula (2) wherein R | 12-24-2009 |
| 20100204430 | Continuous Production of Polyurethanes/Polyureas - The invention relates to a continuous process for the preparation of polyurethanes/polyureas, in which the components of a starting reaction composition are applied individually and/or as a mixture in a thin film to an inner region of a hot surface of a rotating body A so that the thin film flows over the hot surface of the rotating body A to an outer region of the hot surface of the rotating body A, the thin film leaves the hot surface as polyurethane/polyurea-containing reaction composition and, after leaving the hot surface, the reaction composition is abruptly cooled, a polyisocyanate component and a polyol/polyamine component being present as components of the starting reaction composition, the temperature of the hot surface being 70 to 400° C. and the abrupt cooling of the reaction composition being at least 30° C. | 08-12-2010 |
| 20100261865 | METHOD FOR METALLIZING A POLYMER - The present invention relates to a method for metallizing a polymer, wherein the polymer is treated in succession
| 10-14-2010 |
| 20130331537 | POLYETHER URETHANE AND POLYETHER UREA BASED COPOLYMERS AND METHODS RELATED THERETO - Polymeric materials referred to herein as PEU include a plurality of linking groups selected from urea and urethane groups, and a plurality of segments located between adjacent linking groups, where at least some of the segments of the PEU are polyoxyalkylene, but other exemplary segments include hydrocarbons, polyesters, polycarbonates and polysiloxanes. The polymeric materials are biocompatible and may be used, for example, to replace or supplement cartilage in an articulated joint. | 12-12-2013 |
| 528062000 | Organic NH, =NH, or HNH nitrogen-containing reactant contains a heterocyclic ring | 1 |
| 20100063239 | POLYIMIDE RESIN - A polyimide resin represented by the following general formula (I): | 03-11-2010 |
| 528064000 | Organic NH, =NH or HNH nitrogen reactant contains a carbocyclic or aromatic ring | 3 |
| 20080287639 | CROSS-LINKED THERMOPLASTIC POLYURETHANE/POLYUREA AND METHOD OF MAKING SAME - A cross-linked thermoplastic polyurea is formed by heating a mixture containing a thermoplastic urethane base material, a monomeric and/or polymeric di-isocyanate comprising between 1 to 10% of the total weight of the mixture, and a diamine comprising between 1 to 10% of the total weight of the mixture. A thermoplastic polyurethane may be formed by substituting hydroquinone for the diamine. The mixture is heated to a temperature within the range of 250° F. to 550° F. The heated mixture, which is flowable, is then injected into at least one injection molding device. The mixture is then cured at a temperature between 150° F. to 250° F. for a period of time between 2 and 36 hours. The cross-linked thermoplastic polyurethane/polyurea retains the excellent flowability characteristics of a thermoplastic urethane while the same time exhibits good abrasion, tensile strength, rebound, and compression set characteristics which are similar to those found in thermoset urethanes. | 11-20-2008 |
| 20100234552 | POLYOL COMPOUND, TRANSPARENT MOLDED ARTICLE AND METHOD OF MANUFACTURING TRANSPARENT MOLDED ARTICLE - A polyol compound denoted by general formula (I). A transparent molded article obtained by polymerizing monomer components comprising the aforementioned polyol compound. A transparent molded article obtained by polymerizing monomer components comprising components (C) and (D). A method of manufacturing a transparent molded article, comprising casting a mixture of component (C) and component (D) into a casting mold and then polymerizing component (C) and component (D) to obtain a molded article. | 09-16-2010 |
| 20150087797 | Plasticizer Free Curing Composition - Plasticizer free curing compositions comprising small particle size complexes of methylenedianiline and an alkali salt, e.g. a 3:1 coordination complex of MDA/alkali salt, with average diameter 60 micron or less, often 20 micron or less, e.g., 10 microns or less, dispersed in a volatile, non-polar, organic solvent are prepared. Stable one pack urethane compositions comprising the plasticizer free curing compositions and polyurethane prepolymers are prepared, which exhibit excellent storage stability and overcome many of the drawbacks encountered when using MDA complexes dispersed in plasticizers such as high boiling aromatic and alkyl di-esters. | 03-26-2015 |
| 528065000 | With reactant having two -XH groups | 27 |
| 20080300377 | Process for the preparation of Thermoplastic Polyurethanes based on 1,5-Naphthalene-Diisocyanate - Thermoplastic polyurethanes (TPU) based on NDI are prepared by reacting specific, storage-stable NDI-based NCO prepolymers with chain extenders and granulating the largely reacted and cooled reaction melt. The TPU granules can then be processed to form shaped articles. | 12-04-2008 |
| 20090030170 | Polythiourethane Polymerizable Composition and Method for Producing Optical Resin by Using Same - A resin composition excellent in tintability and resin strength, a resin obtained by curing such a resin composition, and an optical component is provided. A polymerizable composition containing an isocyanate compound suitably used for transparent resin materials, at least one polythiol compound which may have one or more (poly)sulfide bonds in a molecule, and at least one polyhydroxy compound having two or more hydroxy groups in a molecule and/or at least one (poly)hydroxy(poly)mercapto compound having one or more hydroxy groups and one or more thiol groups is used. | 01-29-2009 |
| 20090069526 | THERMOPLASTIC POLYURETHANES - A process for the preparation of thermoplastic polyurethane by reacting (a) isocyanates with (b) compounds reactive toward isocyanates and having a molecular weight (M | 03-12-2009 |
| 20100036080 | PLASTICS MOULDINGS OF POLYURETHANE AND THEIR USE - The invention relates to compact plastics mouldings having bulk densities of >1000 kg/m | 02-11-2010 |
| 20100056746 | OPTICAL POLYURETHANE RESIN COMPOSITION AND OPTICAL POLYURETHANE RESIN - An optical polyurethane resin composition contains a polyisocyanate component including at least one cyclic polyisocyanate selected from the group consisting of alicyclic polyisocyanates, aralkyl polyisocyanates, and modified compounds thereof; and a polyol component having an average hydroxyl value of 280 to 1240 mg KOH/g and an average functionality of more than 2 and less than 5. | 03-04-2010 |
| 20100113733 | Low Haze Thermoplastic Polyurethane Using Mixture Of Chain Extenders Including 1,3-And 1,4-Cyclohexanedimethanol - The present invention is a low haze thermoplastic polyurethane (TPU) prepared from a chain extender mixture that includes an acyclic diol and a mixture of 1,3- and 1,4-cyclohexanedimethanol. The TPU elastomers exhibit good optical clarity, particularly when formed into relatively thick injection molded parts. | 05-06-2010 |
| 20100152404 | Process for the preparation of polyurethdione resins - A process for preparing a carboxyl functional polyuretdione resin composition for use in powder coating compositions comprising the steps of:
| 06-17-2010 |
| 20100152405 | THERMOPLASTIC POLYURETHANES COMPRISING POLYTRIMETHYLENE ETHER SOFT SEGMENTS - Provided are hermoplastic polyurethanes prepared from reactants comprising: (a) polytrimethylene ether glycol; (b) diisocyanate; (c) diol chain extender; and (d) monofunctional isocyanate reactive alcohol or amine. Also provided are methods of manufacturing the polyurethanes. | 06-17-2010 |
| 20100184938 | Polyurethane Polymer - A rigid thermoplastic polyurethane made by reacting a diisocyanate with a diol, wherein the diisocyanate includes a mixture of positional and geometric isomers of bis(isocyanatomethyl) cyclohexane. | 07-22-2010 |
| 20130079486 | METHOD FOR PRODUCING 1,5-PENTAMETHYLENEDIAMINE, 1,5-PENTAMETHYLENEDIAMINE, 1,5-PENTAMETHYLENE DIISOCYANATE, METHOD FOR PRODUCING 1,5-PENTAMETHYLENE DIISOCYANATE, POLYISOCYANATE COMPOSITION, AND POLYURETHANE RESIN - In a method for producing 1,5-pentamethylenediamine, a lysine decarboxylase-expressing microorganism that is subjected to a treatment is used. | 03-28-2013 |
| 20130085250 | HEAT-ADHERENT FILM AND PRESSURE-SENSITIVE ADHESIVE TAPE - Provided is a heat-adherent film capable of sufficiently expressing each of “attachment position correction workability” that enables the film to be easily aligned by the expression of good temporary attachment property, “reworkability” that enables the film to be easily reattached, and “temperature-sensitive strong pressure-sensitive adhesiveness” that enables the film to express strong temperature-sensitive pressure-sensitive adhesiveness, and capable of maintaining its film shape in a state where the film is free of a base material at least at around room temperature. Also provided is a pressure-sensitive adhesive tape containing such heat-adherent film. The heat-adherent film includes a polymer having a urethane group, an amide group, and an acrylic group, in which: the film maintains a film shape in a state where the film is free of a base material at least at 25° C.; and the film has a tensile storage modulus of elasticity at −50° C. of 1.00×10 | 04-04-2013 |
| 20130109830 | POLYURETHANE ELASTOMERS, A METHOD FOR PRODUCING SAME, AND USE THEREOF | 05-02-2013 |
| 20130338330 | PENTAMETHYLENEDIISOCYANATE, METHOD FOR PRODUCING PENTAMETHYLENEDIISOCYANATE, POLYISOCYANATE COMPOSITION, POLYURETHANE RESIN, AND POLYUREA RESIN - A Pentamethylene diisocyanate is obtained by phosgenating pentamethylenediamine or its salt obtained by a biochemical method, and contains 5 to 400 ppm of a compound represented by the general formula (1) below and a compound represented by the general formula (2) below in total: | 12-19-2013 |
| 20140107311 | Thermoplastic Polyurethane With Reduced Tendency To Bloom From A Bio-Based Glycol - The present invention discloses a thermoplastic polyurethane comprised of the reaction product of (1) a hydroxyl terminated polyester intermediate, (2) a polyisocyanate, and (3) a glycol chain extender; wherein the polyester intermediate is comprised of repeat units derived from a 1,3-propylene glycol component and a dicarboxylic acid wherein the 1,3-propylene glycol component comprises a bio-based 1,3-propylene glycol; wherein the polyester intermediate has a number average molecular weight from 500 to 10,000; and wherein the polyurethane includes hard segments that are the reaction product of the polyisocyanate and the glycol chain extender. This thermoplastic polyurethane is unique as it has a greatly reduced tendency to bloom and is prepared from a renewable material. Blooming causes articles containing the polyurethane to be hazy or foggy in appearance and can also reduce the ability of an article to be securely bound to another with an adhesive. | 04-17-2014 |
| 20160153559 | POLYURETHANE ELASTOMERIC SEAL FOR HYDRAULIC PUMPS | 06-02-2016 |
| 20160376396 | LIQUID CRYSTALLINE POLYURETHANE ELASTOMER AND METHOD FOR PRODUCING SAME - A liquid crystalline polyurethane elastomer is produced by reacting an isocyanate component, a high-molecular-weight polyol component and a mesogenic diol represented by formula (1), and having a crosslinking site that is introduced by a tri-functional or higher isocyanate in the isocyanate component and/or a high-molecular-weight polyol having a number average molecular weight of 400 or more and less than 7000 and having three or more hydroxy groups, in the high-molecular-weight polyol component, wherein the melting point of a mesogenic unit does not exist in a temperature range lying between the glass transition temperature (Tg) and the (liquid crystal phase)-to-(isotropic phase) transition temperature (Ti) of the polyurethane elastomer, and a liquid crystal is developed at a temperature between the Tg and the Ti. (In the formula, X represents an alkylene group having 3 to 20 carbon atoms; and Y represents a single bond, —N═N—, —CO—, —CO—O— or —CH═N—.) | 12-29-2016 |
| 20220135739 | Polyetherpolyol with Low Content of Cyclic Oligomers - The present invention refers to polyetherpolyols which are characterized by a low content of cyclic by-products as well as to a method for producing the polyetherpolyol and an adhesive composition comprising the same. | 05-05-2022 |
| 528066000 | Reactant having two -XH groups contains two or more -C-X-C- groups or two or more carboxylic acid ester groups | 10 |
| 20090076240 | COMPOUNDS HAVING ISOCYANATE FUNCTIONAL GROUP SUBSTITUENTS AND COATING COMPOSITIONS COMPRISED THEREOF - Novel compounds having an average isocyanate functionality of greater than 2 are synthesized by the reaction of a (poly)isocyanate having an average functionality of greater than 2, with a compound X comprising a function B(H) | 03-19-2009 |
| 20090143559 | Flexible cycloaliphatic diisocyanate trimers - 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 T | 06-04-2009 |
| 20090149622 | Thermoplastic Polyurethane Containing Structural Units of Polyester and Polyether Diols - The present invention is a transparent thermoplastic polyurethane (TPU) comprising structural units of: a.) a diisocyanate; b.1) a polyester diol and b.2) a specific polyether diol and c.) a chain extender. The TPU has good combinations of light transmission and clarity, tensile strength, low temperature flexibility, and high moisture vapor transition rates compared to other commercial or known TPUs. A preferred example composition is a TPU that is based on MDI as the diisocyanate monomer, polycaprolactone as a polyester diol, an EO capped EO/PO polyether diol containing less than 20% EO, and butanediol as chain extender. These composition have good combinations of clarity, tensile strength, hydrolytic stability and processability compared to TPUs prepared using either polyester or polyether diols alone or the combination with a higher EO polyether diol. | 06-11-2009 |
| 20090259012 | UREA-TERMINATED ETHER POLYURETHANES AND AQUEOUS DISPERSIONS THEREOF - The present invention relates to water-dispersible urea terminated ether type polyurethanes based on polyether diols, aqueous dispersions of such polyurethanes, and their manufacture. The urea termination can have nonionic hydrophilic substituents. | 10-15-2009 |
| 20100087617 | COMPOSITION CAPABLE OF FORMING YELLOWING-FREE, LOW-HARDNESS POLYURETHANE ELASTOMER, AND METHOD FOR PRODUCING YELLOWING-FREE, LOW-HARDNESS POLYURETHANE ELASTOMER USING THE SAME - The present invention provides a thermosetting polyurethane elastomer that is yellowing-free, has low hardness and does not give rise to bleeding without using any plasticizer, has little tack, and exhibits small changes in hardness with temperature. | 04-08-2010 |
| 20100222540 | NCO-FUNCTIONAL PREPOLYMER MADE OF DICYCLOHEXYL METHANE DIISOCYANATE, ISOPHORONE DIISOCYANATE, AND POLYETHER POLYOLS, HAVING A REDUCED TENDENCY TO CRYSTALLIZATION - The invention relates to NCO-functional prepolymers prepared from dicyclohexylmethane diisocyanate (H | 09-02-2010 |
| 20100261866 | METAL-CONTAINING COMPOUND AND USE THEREOF - A compound having two or more thiol groups and an atom selected from metal atoms in a molecule, a polythiol composition containing such a compound, a polymerizable composition containing such a polythiol composition, a resin obtained by polymerization of such a polymerizable composition, and an optical component obtained from such a resin are provided. The polymerizable composition can be a raw material for a resin having high transparency, good heat resistance and mechanical strength required for optical components such as plastic lenses and the like, while attaining a high refractive index (nd) exceeding 1.7. | 10-14-2010 |
| 20100324254 | REACTIVE HOT MELT ADHESIVE - A reactive hot melt adhesive exhibiting good hardness (flexibility) after curing while maintaining excellent initial adhesion properties is provided. The reactive hot melt adhesive is obtained by reacting a polyether polyol (A), an amorphous polyester polyol (B) having a softening point of less than 40° C., an amorphous polyester polyol (C) having a softening point of 40° C. or more, and a polyisocyanate compound (D). | 12-23-2010 |
| 20110003961 | THERMOPLASTIC POLYURETHANE WITH REDUCED FORMATION OF DEPOSIT - A thermoplastic polyurethane is obtainable via reaction of the following components A, B, C, and, if appropriate, D and E
| 01-06-2011 |
| 20130172512 | BIO-BASED POLYURETHANE ARTICLE - A polyurethane article includes at least 25% of bio-based content and is made of a reactive composition containing an isocynate compound, a polymeric polyol component including biomass derived polymeric polyol, and a biomass derived diol. | 07-04-2013 |
