Class / Patent application number | Description | Number of patent applications / Date published |
525440010 | Mixed with -N=C=X reactant or polymer derived therefrom (X is chalcogen); or wherein solid polymer is derived from a -N=C=X reactant and also a polycarboxylic acid or derivative and a polyhydroxy reactant | 25 |
20090099319 | METHOD FOR SOLUBILISING HYDROPHOBIC ACTIVE SUBSTANCES IN AN AQUEOUS MEDIUM - The present invention relates to a process for solubilizing hydrophobic active substances in an aqueous medium, which comprises using as assistant at least one hyperbranched polymer obtainable by
| 04-16-2009 |
20110021720 | ENVIRONMENTALLY FRIENDLY NATURAL OIL-BASED TONER RESIN - A method of synthesizing polyester toner resins comprises: polycondensing polycarboxylic acids, polyols and free fatty acids to form low molecular weight polyester resins with alkenyl group or hydroxyl group or a combination of both; wherein at least one of said polycarboxylic acids, said polyols or said free fatty acids derive from natural oils; crosslinking the polyester via alkenyl group with radical initiator and vinyl monomer or via hydroxyl group with diisocyanate to generate polyester of higher molecular weight and melting point; obtaining a first fraction with a molecular weight ranged between 3000 and 15000 and a second fraction with a molecular weight larger than 15000; and combining said first fraction with said second fraction to form said polyester toner resins. | 01-27-2011 |
20110021721 | POLYURETHANE ELASTOMER COMPOSTION FOR ELECTROPHOTOGRAPHIC PRINTING AND ELECTROPHOTOGRAPHIC PRINTING MEMBER USING THE SAME - The present invention provides a polyurethane elastomer composition for electrophotographic printing, including: a polyester polyol (A) obtained by polycondensing a polyvalent carboxylic acid (A-1) containing sebacic acid as a main component and a polyhydric alcohol (A-2) selected from (I) a linear glycol having 2 to 4 carbon atoms, (II) a linear glycol having 2 to 4 carbon atoms and a glycol having 2 to 4 carbon atoms with an alkyl side chain and (III) a linear glycol having 2 to 4 carbon atoms and 1,6-hexaneglycol; a polyisocyanate compound (B); and a mixture (C) of a short-chain diol and a short-chain triol. The polyurethane elastomer composition for electrophotographic printing has reduced temperature dependency, improved long-term durability and satisfactory mechanical strength. An electrophotographic printing member is also provided. | 01-27-2011 |
20110237758 | URETHANE-FORMING REACTION CATALYST AND METHOD FOR PRODUCING URETHANE MATERIAL - The present invention provides a urethane-forming reaction catalyst which is useful for catalyzing a reaction between an isocyanate compound, in particular, an aliphatic isocyanate and a hydroxyl group-containing compound to form a urethane material, which does not affect the performance of the urethane material, and which can be easily removed from the resulting urethane material, and a method for producing a metal compound-free urethane material using the urethane-forming reaction catalyst. The catalyst of the present invention is a urethane-forming reaction catalyst for producing a urethane material by allowing a hydroxyl group-containing compound to react with an isocyanate compound, the catalyst being at least one solid acid catalyst selected from the group consisting of a (A) composite metal oxide in which a metal oxide (A-2) or a non-metal compound (A-3) is carried on a surface of a metal oxide carrier (A-1), (B) zeolite, and a (C) heteropoly acid. | 09-29-2011 |
20130046066 | METHOD OF PREPARING A POLYMER AND COMPOSITIONS THEREFOR - The invention provides a method of making a polymer in the presence of a catalyst composition having an empirical formula M(glycerol) | 02-21-2013 |
20130289221 | METHOD FOR PRODUCING ALIPHATIC POLYESTER HAVING INCREASED MOLECULAR WEIGHT - The present invention addresses the problem of providing a method for continuously and effectively producing an aliphatic polyester having an increased molecular weight by preventing evaporation of a diisocyanate when blending the diisocyanate with an aliphatic polyester prepolymer in a molten state at a temperature not lower than the melting point thereof so that the diisocyanate and the aliphatic polyester prepolymer are uniformly blended.
| 10-31-2013 |
20140275442 | TITANIUM DIOXIDE PIGMENT AND MANUFACTURING METHOD - In one aspect, the invention provides a titanium dioxide pigment. The titanium dioxide pigment comprises a plurality of titanium dioxide particles, and a polymer deposited on the titanium dioxide particles for inhibiting agglomeration of the titanium dioxide particles in an aqueous based coating formulation. The titanium dioxide particles have anchoring moieties associated therewith for facilitating anchoring of the polymer to the particles. The polymer is a copolymer having anchoring groups for attaching to the anchoring moieties associated with the titanium dioxide particles and hydrophobic end groups for attaching to the resin of the coating formulation. In another aspect, the invention provides a method of manufacturing a titanium dioxide pigment. | 09-18-2014 |
20140323667 | METHOD FOR PRODUCING CLEANING BLADE - In a method for producing a cleaning blade, a first composition obtained by causing a reaction of diphenylmethane diisocyanate and a first aliphatic polyester polyol which has a number-average molecular weight of 2000 to 3500 and is used in an amount of 20 to 40 mol % relative to the diphenylmethane diisocyanate and a second composition containing a urethane rubber-synthesizing catalyst and a second aliphatic polyester polyol which has a number-average molecular weight of 2000 to 3500 and is the same as or different from the first aliphatic polyester polyol are mixed so that a relationship between a number of moles (M | 10-30-2014 |
20150112029 | Polyester Polyols and Methods of Making and Using the Same - Polyester polyols are generally disclosed, including methods of making and using them. In some embodiments, the polyester polyols are incorporated into a block copolymer, such as a polyurethane block copolymer. In some embodiments, the polyurethane block copolymers can be used as compatibilizing agents, which can be used, for example, in polymer blends, polymer alloys, solutions, emulsions, as well as in extruded and injection molded articles. In some embodiments, at least a portion of the polyurethane block copolymer is derived from a renewable source. | 04-23-2015 |
525440020 | Blocked isocyanate reactant or polymer derived therefrom | 1 |
20150361297 | POWDER COATING MATERIAL SET, AND POWDER COATING MATERIAL COMPOSITION - A powder coating material set for performing color matching by dry mixing of at least two kinds of powder coating materials having different colors is disclosed. The powder coating materials contain powder particles, and the powder particles contain a thermosetting resin and a thermosetting agent, and have a volume average particle diameter of 3 μm to 10 μm and a GSDv of equal to or smaller than 1.3. | 12-17-2015 |
525440040 | Heterocyclic containing reactant or polymer derived therefrom other than as an anhydride of a polcarboxylic acid | 1 |
20140142256 | SUPRAMOLECULAR POLYMERS FROM LOW-MELTING, EASILY PROCESSABLE BUILDING BLOCKS - The present invention relates to a supramolecular polymer comprising 1-50 4H-units, said supramolecular polymer being obtainable by reacting at least one monomeric building block with a prepolymer. The present invention further relates to articles or compositions comprising the supramolecular polymer, in particular articles or compositions selected from the group consisting of decorative, thermo-reversible, or self-healing coatings, adhesive compositions, sealing compositions, thickeners, gelators and binders. | 05-22-2014 |
525440060 | Nitrogen containing reactant other than N in a N=C=X group or polymer thereof | 3 |
20110207895 | POLYURETHANE ADHESIVE FOR WINDSHIELD APPLICATIONS - A polyurethane adhesive which is useful in bonding porous and non-porous surfaces is provided. The adhesive is especially useful in bonding windshield glass into automotive frames under a variety of environmental conditions, particularly in after market windshield replacement applications. The polyurethane includes at least one urethane prepolymer which is based on at least one thermoplastic polyol. In one embodiment, the urethane prepolymer may be formed from one or more polyisocyanates, one or more polyetherpolyols and one or more thermoplastic polyesterpolyols, wherein the prepolymer has a free isocyanate content of from about 0.6 to about 3.5% by weight, based on the weight of the polyurethane. In another embodiment, a one-part adhesive composition is provided which includes an isocyanate-functional and thermoplastic polyurethane prepolymer having a free isocyanate content of from about 0.6 to about 3.5% by weight, based on the weight of the polyurethane, and a combination of several catalysts which are capable of catalyzing the reaction of isocyanate moieties with isocyanate-reactive moieties while providing less temperature dependent catalyzing of the reaction between isocyanate moieties and water. Also provided is a process for bonding two or more substrates together utilizing the polyurethane adhesive. In automotive windshield replacement applications, the polyurethane adhesive allows for a sufficient working time and development of green strength to provide a safe drive-away time within 1 hour at a temperature from about 0 to about 100° C. | 08-25-2011 |
20150126688 | METHODS FOR CONTROLLING (EXTENDING) THE POT LIFE IN CHAIN-EXTENDED POLYURETHANE (PU)-BASED SYSTEMS - The invention relates to novel processes for controlling (extending) the pot life in polyurethane (PU) based systems that are chain-extended with diamines, preferably PU elastomers, PU adhesives, PU casting resins. | 05-07-2015 |
20160075822 | BIODEGRADABLE PHOTOLUMINESCENT POLYMERS - The present invention describes a novel elastomeric biodegradable photoluminescent polymer (BPLP). The BPLPs of the present invention possess great processability and tunable fluorescence emission characteristics and are cell-compatible and biodegradable. The BPLPs of the present invention can serve as both implant materials and bioimaging probes. | 03-17-2016 |
525440070 | Reactant contains ethylenic unsaturation | 1 |
20080319141 | Urethane Modified Water-Reducible Alkyd Resins - Urethane modified water-reducible alkyd resins ABCD, comprising moieties derived from polyhydric alcohols A, modified fatty acids B made hγ grafting olefinically unsaturated carboxylic acids B2 onto fatty acids B1, ungrafted fatty acids C and polyfunctional isocyanates D, a process for their production, and a method of use thereof in coating binders | 12-25-2008 |
525440080 | Fused or bridged ring system containing, or non-aryl carbocyclic ring containing reactant | 3 |
20110306734 | THERMOPLASTICALLY PROCESSABLE POLYURETHANES BASED ON SUCCINIC ACID PROPIONATES - The present invention relates to a thermoplastically processable polyurethane elastomer having a hardness of 50 Shore A to 70 Shore D (ISO 868), which are obtained from reacting components comprising a) one or more linear polyester diols having a functionality from 1.8 to 2.2, wherein the one or more linear polyester diols comprise succinic acid 1,3-propionate and have an average molecular weight from 1,950 to 4,000 g/mol. b) one or more organic diisocyanates, and c) one or more diols having a molecular weight from 60 to 350 g/mol, wherein the components have a molar NCO:OH ratio of from 0.9:1 to 1.1:1. | 12-15-2011 |
20130281636 | PROCESS FOR PREPARING POLYURETHANE-POLYACRYLATE HYBRID DISPERSIONS - The present invention relates to a new process for preparing polyurethane-polyacrylate hybrid dispersions, and to the resulting dispersions and their use. | 10-24-2013 |
20150329668 | ALIPHATIC POLYESTER, METHOD OF PREPARING THE SAME, AND POLYMER ORGANIZER - An aliphatic polyester having a number-average molecular weight of from 500,000 to 2,000,000 includes an ester bonding site and an amide bonding site. The content of the amide bonding site is from 1×10 | 11-19-2015 |
525440120 | N=C=X reactant or polymer derived therefrom contains at least one aryl group | 3 |
20140163178 | LACTIDE COPOLYMER, A PREPARATION METHOD THEREOF, AND A RESIN COMPOSITION INCLUDING THE SAME - The present invention relates to a lactide copolymer having good flexibility in addition to excellent properties such as mechanical properties and processability and preferably being applicable as a packaging material, a preparation method thereof, and a resin composition including the same. The lactide copolymer includes two or more specific block copolymerized repeating units that the hard segments of polylactide repeating units are connected to both ends of the soft segments of polyether polyol repeating unit, and the block copolymerized repeating units are connected to each other through the intermediation of urethane connecting groups derived from polyvalent isocyanate compound of which the average equivalent of isocyanate group per a molecule is more than 2 and less than 3. | 06-12-2014 |
20150133610 | SOFT THERMOPLASTIC POLYURETHANE BASED ON THE ESTER OF A TRICARBOXYLIC ACID - The invention refers to a thermoplastic polyurethane produced from at least an organic diisocyanate and a compound which is reactive toward isocyanates, wherein the polyurethane comprises the ester of a tricarboxylic acid with at least one alcohol and wherein all acid groups of the tricarboxylic acid are esterified with an alcohol. The invention further refers to a process for producing the respective polyurethane, products comprising this thermoplastic polyurethane and the use of the ester of a tricarboxylic acid as plasticizer in thermoplastic polyurethanes. | 05-14-2015 |
20150368392 | CLEAR HYDROPHOBIC TPU - A clear hydrophobic TPU is provided by reacting (a) a hydrophobic polyol made from dimerised fatty acid, (b) a chain extender mixture of a linear diol chain extender and a branched diol chain extender, and (c) a diisocyanate. The preferred polyol is a C | 12-24-2015 |
525440130 | Solid polymer derived from polycarboxylic acid or derivative and a polyhydroxy compound is derived from a hydroxy containing carboxylic acid or derivative reactant | 1 |
20160152870 | SURFACE PROTECTIVE PRESSURE-SENSITIVE ADHESIVE SHEET | 06-02-2016 |
525440140 | Solid polymer derived from polycarboxylic acid or derivative and a polyhydroxy compound wherein said polycarboxylic acid or derivative contains three or more carboxylic acid or derivative groups | 2 |
20130345369 | Biodegradable Photoluminescent Polymers - The present invention describes a novel clastomeric biodegradable photoluminescent polymer (BPLP). The BPLPs of the present invention possess great processability and tunable fluorescence emission characteristics and are cell-compatible and biodegradable. The BPLPs of the present invention can serve as both implant materials and bioimaging probes. | 12-26-2013 |
20150080535 | HYDROXYLAMINO POLYMER AND METHOD FOR THE PRODUCTION THEREOF - The present invention relates to a process for the preparation of a hydroxy-amino polymer, comprising the steps: a) reacting an H-functional starter compound carrying at least one Zerewitinoff-active H atom with an unsaturated cyclic carboxylic acid anhydride to give a carboxyl-group-carrying prepolymer, b) reacting the carboxyl-group-carrying prepolymer with at least one epoxide compound to give a hydroxyl-group-carrying prepolymer, c) adding a primary amine and/or ammonia to the double bond of the hydroxyl-group-carrying prepolymer obtained according to step b) to give the hydroxy-amino polymer, wherein the ratio of the amount of carboxylic acid anhydride to the number of Zerewitinoff-active H atoms of the H-functional starter compound is so chosen that almost all the Zerewitinoff-active H atoms of the H-functional starter compound are reacted. The invention relates additionally to a hydroxy-amino polymer obtainable by the above-mentioned process, wherein the ratio of the amount of unsaturated cyclic carboxylic acid anhydride to the number of Zerewitinoff-active H atoms of the H-functional starter compound is at least approximately 0.9:1, and further to the use of this hydroxy-amino polymer is the preparation of a polyurethane urea polymer. | 03-19-2015 |
525440160 | Solid polymer derived from two or more polycarboxylic acid or derivatives and a single polyhydroxy compound | 1 |
20130035448 | BIOMASS-RESOURCE -DERIVED POLYURETHANE, METHOD FOR PRODUCING SAME, AND BIOMASS-RESOURCE-DERIVED POLYESTER POLYOL - The invention relates to a method for producing a biomass-resource-derived polyurethane, which comprises: reacting a dicarboxylic acid and an aliphatic diol to produce a polyester polyol; and reacting the polyester polyol and a polyisocyanate compound, wherein the dicarboxylic acid contains at least one component derived from biomass resources, a content of an organic acid in the dicarboxylic acid is more than 0 ppm and not more than 1,000 ppm relative to the dicarboxylic acid, and a pKa value of the organic acid at 25° C. is not more than 3.7. | 02-07-2013 |