| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 528076000 | With ether or thioether compound containing at least two -C-X-C- groups | 35 |
| 20100105855 | CASTING COMPOUNDS BASED ON POLYURETHANE - The invention relates to a polyol mixture which comprises as components
| 04-29-2010 |
| 20100125126 | PROCESS FOR THE PREPARATION OF POLYETHER POLYOLS - The present invention provides a process for conditioning double metal cyanide (DMC) catalysts, which are employed in the preparation of polyether polyols based on starter compounds having active hydrogen atoms, the preparation of polyether polyols using the conditioned catalysts and the use of the polyether polyols prepared in this way for the preparation of polyurethane materials. | 05-20-2010 |
| 20110224396 | PROCESS FOR PREPARING POLYETHER POLYOLS - The present invention relates to a process for the catalytic preparation of polyetherols, wherein the power input by means of at least one stirrer and/or by means of at least one pump, based on the reactor volume, is in the range from 0.001 to 8.2 kW/m | 09-15-2011 |
| 20110224397 | PROCESS FOR PREPARING POLYOLS USING BASE CATALYSIS - The present invention relates to a process for preparing polyetherols in the presence of basic catalysts, wherein propylene oxide (PO) and/or ethylene oxide (EO) whose summated contents
| 09-15-2011 |
| 20110237770 | VISCOSITY REDUCING AGENTS FOR POLYETHER POLYOLS - The present invention relates to a process for the preparation of a polyurethane, comprising the process steps:
| 09-29-2011 |
| 20110275779 | LIGHT GUIDES MADE OF THERMOPLASTIC POLYURETHANES - The invention relates to thermoplastic polyurethanes (hereinafter TPUs) suitable for the production of optical conductors, to a process for their production, and also to optical conductors based on TPUs. | 11-10-2011 |
| 20120029162 | CARBON NANOTUBES COMPRISING HYDROXY GROUPS, METHOD FOR THE PRODUCTION THEREOF AND POLYURETHANE POLYMERS COMPRISING SAID CARBON NANOTUBES - The invention relates to carbon nanotubes comprising hydroxy groups, wherein the surface thereof comprises hydroxy alkyl ester groups covalently bound thereon, chosen from the group according to the general formula (1) and/or the general formula (2), wherein (CNT) stands for the surface of the carbon nanotube and R1 and R2 are independently from each other hydrocarbon, an alkyl radical or an aryl radical. The invention further relates to a method for the production thereof by means of reaction of carbon acid groups of the carbon nanotubes with an epoxy, furthermore a polyurethane polymer, wherein said carbon nanotubes are covalently bound, a method for producing a polymer of said kind and use of the carbon nanotubes for producing polymers. | 02-02-2012 |
| 20120196999 | METHOD FOR THE PRODUCTION OF POLYETHER POLYOLS COMPRISING TERMINAL PRIMARY HYDROXYL GROUPS - The present invention relates to a process for producing polyether polyols having primary hydroxyl end groups, comprising the steps of reacting a starter compound containing active hydrogen atoms with an epoxide under double metal cyanide catalysis, reacting the resulting product with a cyclic carboxylic anhydride and reacting this resulting product with ethylene oxide in the presence of a catalyst containing at least one nitrogen atom per molecule, excluding non-cyclic, identically substituted tertiary amines. The invention further relates to polyether polyols obtainable by this process, compositions containing said polyols and polyurethane polymers based on said polyols. | 08-02-2012 |
| 20130030140 | POLYOL FOR POLYURETHANE PREPARATION AND POLYURETHANE PREPARATION METHOD USING SAME - A polyol (PL) for polyurethane preparation is disclosed that includes the polyol (a) and the strength-enhancing agent (b), as follows. Polyol (a): a polyoxyalkylene polyol that is the alkylene oxide adduct of an active hydrogen-containing compound (H), in which at least 40% of a hydroxyl group positioned on the terminal is a primary hydroxyl group-containing group represented by general formula (I). In general formula (I), R | 01-31-2013 |
| 20130211034 | Method For Making Over-Indexed Thermoplastic Polyurethane Elastomer Precursor And Thermoplastic Polyurethane Elastomer Made From The Precursor - A method for making over-indexed thermoplastic polyurethane elastomer precursor. The precursor may be cross-linked. | 08-15-2013 |
| 20130338331 | METHOD FOR PRODUCING POLYETHER POLYOLS - The invention relates to methods for the preparation of polyether polyols by DMC-catalysed alkylene oxide addition to starter compounds comprising acidic sulfuric acid salts, to the use thereof for the preparation of polyurethanes, and to polyurethanes comprising the polyether polyols according to the invention. | 12-19-2013 |
| 20140046019 | HYDROSWELLABLE, SEGMENTED, ALIPHATIC POLYURETHANES AND POLYURETHANE UREAS - Hydroswellable, absorbable and non-absorbable, aliphatic, segmented polyurethanes and polyurethane-urea capable of swelling in the biological environment with associated increase in volume of at least 3 percent have more than one type of segments, including those derived from polyethylene glycol and the molecular chains are structurally tailored to allow the use of corresponding formulations and medical devices as carriers for bioactive agents, rheological modifiers of cyanoacrylate-based tissue adhesives, as protective devices for repairing defective or diseased components of articulating joints and their cartilage, and scaffolds for cartilage tissue engineering. | 02-13-2014 |
| 20140142271 | CONTINUOUS METHOD FOR THE SYNTHESIS OF POLYOLS - The present invention is directed to the synthesis of polyols in a continuous process which comprises the continuous generation of oligomeric polyoxyalkylene polyether polyol by acid catalysis. | 05-22-2014 |
| 20140350206 | THERMOPLASTIC POLYURETHANE FOR PRODUCING HYDROPHILIC FIBERS - The invention relates to a thermoplastic polyurethane that can be obtained by reacting at least the following components: an isocyanate having two isocyanate groups, a first poly(ethylene glycol)polyether diol of the structure (HO—(CH2-CH2-O)x-H) having two isocyanate-reactive groups and a number-average molecular weight Mn>=6000 and <=16000 g/mol, a second poly(ethylene glycol)polyether diol of the structure (HO—(CH2-CH2-O)x-H) having two isocyanate-reactive groups and a number-average molecular weight Mn that corresponds to up to 80% of the number-average molecular weight Mn of the first poly(ethylene glycol)polyether diol B1), a chain extender having two isocyanate-reactive groups and a number-average molecular weight Mn>=60 and <600 g/mol, optionally a catalyst, and optionally auxiliary agents and additives, wherein the equivalent ratio of isocyanate A); to poly(ethylene glycol)polyether diols B1) and B2) lies between 1.5:1.0 and 10.0:1.0 and the NCO index, calculated from the quotient of the equivalent ratios of the isocyanate groups multiplied by 100 and the total of the isocyanate-reactive groups, is 90 to 105. The invention further relates to a method for producing the thermoplastic polyurethane according to the invention and to a thermoplastic polyurethane that can be obtained as per the method according to the invention. | 11-27-2014 |
| 20140357828 | MODIFIED BETA-AMINO ACID ESTER (ASPARATE) CURING AGENTS AND THE USE THEREOF IN POLYUREA TISSUE ADHESIVES - The present invention relates to a compound of a formula (I) | 12-04-2014 |
| 20150368396 | FUNCTIONALIZED POLYOXYMETHYLENE BLOCK COPOLYMERS - The invention relates to a method for producing functionalized polyoxymethylene block copolymers comprising the step of polymerizing formaldehyde in a reaction vessel in the presence of a catalyst, the polymerization of formaldehyde in addition taking place in the presence of a starter compound comprising at least 2 Zerewitinoff active H atoms, to obtain an intermediate product. The intermediate product obtained is subsequently reacted with a cyclic carboxylic acid ester or carbonic acid ester, thus obtaining a functionalized polyoxymethylene block copolymer. The invention further relates to functionalized polyoxymethylene block copolymers obtained by such a method and to the use of said copolymers. | 12-24-2015 |
| 20160002827 | POLYURETHANE FIBER - Provided is a fragrance-retaining fiber that, after absorption of a fragrance component, retains the fragrance even though a long period of time has passed. In particular, provided is a fragrance-retaining polyurethane-based fiber having, 48 hours after absorption of a fragrance component, a total fragrance component emission of from 0.1 μg/g·h to 1000 μg/g·h. | 01-07-2016 |
| 20160122464 | SOLVENT FREE POLYISOBUTYLENE BASED POLYURETHANES - A biocompatible polyisobutylene urethane, urea, and urethane/urea copolymer including hard segments, soft segments and that is free of urethane, urea or urethane/urea solvents. The hard include diisocyanate residue. The soft segments include at least one polyisobutylene diol or diamine and optionally a polyether diol. | 05-05-2016 |
| 20160185903 | LOW VISCOSITY POLYETHER CARBONATE POLYOLS HAVING SIDE CHAINS - The present invention relates to a method for producing low viscosity polyether carbonate polyols having side chains, said method comprising the steps of (a) providing either a suspending agent that does not contain any H-functional groups or an H-functional starter compound, and a catalyst, 03) adding at least one epoxide, the difference between the molecular weights of the lightest and the heaviest of the alkylene oxides added in steps 03) and (y) being greater than or equal to 24 g/mol and the lightest alkylene oxide being a C2-C4 alkylene oxide, wherein the epoxide or epoxides added in step (y) can be the same as or different from the expoxide or expoxides added in 03) and wherein step 03) is carried out between step (a) and step (y), and (y) adding carbon dioxide and at least two alkylene oxides, characterized in that the difference between the molecular weights of the lightest and the heaviest of the alkylene oxides added in step (y) is greater than or equal to 24 g/mol and the lightest alkylene oxide is a C2-C4 alkylene oxide and, in addition, the catalyst is a DMC catalyst. The invention also relates to low viscosity polyether carbonate polyols producible by means of the method according to the invention and to the use thereof. | 06-30-2016 |
| 20160194434 | POLYISOCYANATE POLYADDITION POLYOL MANUFACTURING PROCESS AND PRODUCT | 07-07-2016 |
| 528077000 | Ether or thioether compound contains three or more -XH groups | 10 |
| 20100280213 | PROCESS FOR PRODUCING POLYTHIOL COMPOUND FOR OPTICAL MATERIALS, AND POLYMERIZABLE COMPOSITION CONTAINING POLYTHIOL COMPOUND - Provided is a process for producing a polythiol compound for an optical material, the method includes reacting 2-mercaptoethanol with an epihalohydrin compound to give polyalcohol, and preparing a polythiol compound through the polyalcohol, wherein a content of bis(2-hydroxyethyl)disulfide in the 2-mercaptoethanol is 0.5 wt % or less. | 11-04-2010 |
| 20110021738 | METHOD FOR THE PRODUCTION OF POLYOLS - The present invention relates to polyols obtainable via a simple process. Unless specified explicitly, polyols in the following are to be understood as meaning both polyether polyols and polyether ester polyols. The invention also provides the simple process itself and the use of the polyols according to the invention for the preparation of polyurethane materials. | 01-27-2011 |
| 20110178264 | PROCESS FOR PRODUCING (POLY)THIOL COMPOUND FOR USE AS OPTICAL MATERIAL, AND POLYMERIZABLE COMPOSITION CONTAINING THE COMPOUND - A process for producing a (poly)thiol compound for an optical material. The process involves reacting an organic (poly)halogen compound or a (poly)alcohol compound with thiourea to produce an isothiuronium salt and hydrolyzing the isothiuronium salt in the presence of ammonia water to thereby produce the (poly)thiol compound, wherein the thiourea has a calcium content of not more than 1.0 wt %. | 07-21-2011 |
| 20120116044 | POLYETHERESTER POLYOLS - The present invention relates to hydrophobic polyetherester polyols, to a process for preparing them, and to the use of the polyetherester polyols of the invention for producing polyurethanes. | 05-10-2012 |
| 20140378641 | COMPACT, LIGHTFAST POLYURETHANE MOULDED PARTS - The invention relates to compact, lightfast polyurethane moulded parts which consist of isocyanates, polyols and chain extenders and/or cross-linking agents, as well as to the use of same. | 12-25-2014 |
| 20150018507 | METHOD FOR PRODUCING POLYTHIOL COMPOUND FOR OPTICAL MATERIALS AND COMPOSITION COMPRISING SAME FOR OPTICAL MATERIALS - The present invention relates to a polythiol compound for a high quality optical material that exhibits excellent physical properties in terms of color, a composition for an optical material including the polythiol compound, a method for producing an optical material, and a method for preparing the polythiol compound. The method includes reacting an epichlorohydrin compound containing 0.5% by weight or less of impurities with 2-mercaptoethanol. The polythiol compound is prevented from being colored. The polythiol compound can be used to produce a urethane optical material that is prevented from being colored and has a low yellowness index and a good color. The polythiol compound can be used to produce various optical materials including urethane optical materials. The optical material can be used to manufacture an optical lens having a good color. The optical lens can be used as a spectacle lens, a polarizing lens, a camera lens, or the like. | 01-15-2015 |
| 20160017085 | METHOD FOR PRODUCING POLYTHIOL COMPOUND, POLYMERIZABLE COMPOSITION FOR OPTICAL MATERIAL, AND USES THEREOF - Provided is a method for producing a molded product comprising preparing a polymerizable composition for optical materials and curing the polymerizable composition for optical materials to produce the molded product. The preparation of the polymerizable composition comprises preparing a polythiol compound containing, as a main component, one kind or two or more kinds selected from a defined group of compounds, and preparing the polymerizable composition from the polythiol compound. The preparation of the polythiol compound comprises reacting 2-mercaptoethanol with a defined epihalohydrin compound to obtain a defined compound, reacting the defined compound with sodium sulfide to obtain a defined polyalcohol compound, reacting the polyalcohol compound with thiourea in the presence of hydrogen chloride to obtain an isothiuronium salt, adding aqueous ammonia to a reaction solution containing the isothiuronium salt thereby hydrolyzing the isothiuronium salt to obtain the polythiol compound and purifying the polythiol compound with hydrochloric acid. | 01-21-2016 |
| 20160024242 | METHOD FOR PRODUCING POLYTHIOL COMPOUND, POLYMERIZABLE COMPOSITION FOR OPTICAL MATERIAL, AND USES THEREOF - Provided is a method for producing a molded product comprising a step for preparing a polymerizable composition for optical materials and a step for curing the polymerizable composition for optical materials to produce the molded product. The step for preparing the polymerizable composition for optical materials comprises a step for preparing a defined polythiol compound and a step for preparing the polymerizable composition for optical materials from the polythiol compound. The step for preparing the defined polythiol compound comprises reacting 2-mercaptoethanol with a defined epihalohydrin compound at a temperature of 10° C. to 50° C. to obtain a defined polyalcohol compound, reacting the polyalcohol compound with thiourea in the presence of hydrogen chloride to obtain an isothiuronium salt, hydrolyzing the isothiuronium salt to obtain the polythiol compound, adding hydrochloric acid at a defined concentration to a solution of the polythiol compound, and washing the solution to purify the polythiol compound. | 01-28-2016 |
| 20160122461 | COMPOSITION FOR OPTICAL MATERIAL - According to the present invention, a composition for an optical material contains a compound (a), a compound (b), and a polyisocyanate compound (c), and can suppress the generation of striae defects. The compound (a) is a compound having a structure represented by formula (1). | 05-05-2016 |
| 20160185894 | Polyfunctional Polyglycerine Initiated Polyether Polyols and High Resilience Polyurethane Slabstock Therefrom - A polyglycerine initiated polyether polyol exhibiting a final functionality less than the nominal functionalities of the polyol initiator wherein the initiator is a polyglycerine formed by the polymerization of glycerin having an HEW less than about 35 and exhibiting a nominal functionality between 2 and 16 is provided. Also provided is a process for producing a polyfunctional polyurethane by the reaction of a mixture containing a polyol based on polyglycerine initiator wherein between 5 wt % and 100 wt % of the total initiator is polyglycerine having a nominal functionality between 2 and 16, at least one organic isocyanate, an amine and/or a metal salt catalyst, and optionally a blowing agent. Also provided is a flexible polyurethane foam comprising a reaction product of a polyglycerine or formed by the glycidol polymerization of glycerin, at least one organic isocyanate, and an amine catalyst. | 06-30-2016 |
| 528078000 | Ether or thioether contains at least one nitrogen atom other than as a C NH, C=NH, or C-N(H)-H | 3 |
| 20120071623 | POLYUREAS PREPARABLE FROM TWO POLYETHERAMINES AND A PREPOLYMER - The invention relates to a polyurea preparable from
| 03-22-2012 |
| 20120077950 | Compound Suitable as Polymeric Dispersant - A compound according to the present invention is obtainable by reacting a polyisocyanate with a monoalkylether of a polyoxyalkylenemonoamine, in such an amount that substantially no free isocyanate groups are present in the component. The polyisocyanate itself is an adduct of two polyisocyanate molecules with one isocyanate reactive molecule chosen from the group consisting of a polyoxyalkylene diamine, a polyoxyalkylene diol, a polyoxyalkylenealkanolamine, a polyester diamine, a polyester diol and a polyesteralkanolamine, the average molecular weight of the isocyanate reactive molecule being more than 1000. | 03-29-2012 |
| 20130345386 | 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 | 12-26-2013 |
| 528079000 | Ether or thioether contains a carbocyclic or aromatic group | 2 |
| 20130035467 | HYBRID POLYESTER-POLYETHER POLYOLS - A process for preparing a hybrid polyester-polyether polyol comprises contacting a carboxyl group-containing component and an epoxide, optionally in the presence of one or more of a double metal cyanide catalyst, a superacid catalyst, a metal salt of a superacid catalyst and/or a tertiary amine catalyst, under conditions such that a hybrid polyester-polyether polyol is formed. The hybrid polyester-polyether polyol offers the advantages of both ester and ether functionalities when used in a polyurethane formulation, thus enhancing physical properties. The process results in products having narrow polydispersity, a low acid number and unsaturation, and reduced byproduct formation, particularly when the double metal cyanide catalyst is employed. | 02-07-2013 |
| 20160060381 | POLYURETHANE RESIN FOR MOISTURE-PERMEABLE WATER-PROOF MATERIALS, AND POLYURETHANE RESIN COMPOSITION - The present invention aims to provide a polyurethane resin for moisture-permeable waterproof materials which is excellent in all of the moisture permeability, waterproofness, and resistance to washing. The polyurethane resin for moisture-permeable waterproof materials according to the present invention is a polyurethane resin for moisture-permeable waterproof materials, obtainable by reacting an active hydrogen component (A1) with an organic polyisocyanate component (B),
| 03-03-2016 |
