| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 528085000 | With reactant containing at least two -XH groups | 52 |
| 20080234458 | POLYOL AND METHOD OF MAKING POLYOL USING SOY-BASED POWDER - A method is provided for preparing a polyol from a soy-based precursor powder wherein the powder exhibits excellent solubility as compared to soy polyols in the oil form, and a process for the use of the soy-based polyol thus prepared for the further preparation of polyurethane. | 09-25-2008 |
| 20090069528 | OPTICALLY-DRIVEN ACTUATOR, METHOD OF MANUFACTURING OPTICALLY-DRIVEN ACTUATOR, CONDENSATION POLYMER AND FILM - An optically-driven actuator includes a condensation polymer containing, on its backbone chain, a photoisomerizable group that undergoes structural change under optical stimulation and deforming depending on the structural change of the photoisomerizable group. The condensation polymer deforms under optical stimulation and is functional as an actuator. | 03-12-2009 |
| 20090124785 | Process for production of isocyanate, isocyanate produced by the process, and use of the isocyanate - An isocyanate has been widely used as a starting material for the production of a polyurethane material, a polyisocyanurate material or the like which is suitably applicable to the field of optical materials. Disclosed is a process for producing an isocyanate which includes a step for producing the isocyanate in the form of a hydrochloride with improved productivity. A process for producing a linear or cyclic aliphatic isocyanate comprising the step of reacting a linear or cyclic aliphatic amine with hydrogen chloride to yield a hydrochloride of the linear or cyclic aliphatic amine, the step being performed under a pressure higher by 0.01 MPa or more than the atmospheric pressure. | 05-14-2009 |
| 20090171060 | Impact-Resistant Polyurethane - The present invention teaches a new process to produce novel, hard, optically clear, impact-resistant polyurethane polymers that are characterized by excellent thermo mechanical properties and chemical resistance, and the polymers made as a result of such a process. | 07-02-2009 |
| 20090198036 | Continuous Process for the Production of Moisture-Cure, Polyurethane Sealants and Adhesives - A process for continuous manufacturing of moisture-curable polyurethane formulations used as sealants and adhesives. The process is characterized by the fact that the reactive components are introduced independently, and without the need for a prepolymer, to a mixer. Solid or liquid raw materials can be either pre-blended or fed directly to the mixer, a twin-screw extruder, which provides the requisite energy to homogenously mix the raw materials and drive the chemical reaction. The process is designed so that the extruder barrel and screw allow variable feed addition and heat exchange down the length of the machine. This allows various operations to be performed at different points in the extruder, including reaction, dispersive mixing, distributive mixing and devolitization. | 08-06-2009 |
| 20090264614 | PROCESS FOR PRODUCING POWDERED THERMOPLASTIC POLYURETHANE UREA RESIN - A process for producing a powdered thermoplastic polyurethane urea resin is disclosed, which includes a step of forming a polyurethane urea resin by reacting a polymer polyol (a), an organic polyisocyanate (b), a monofunctional active hydrogen-containing compound (c), and preferably a bifunctional active hydrogen-containing compound (d) in specific proportions to form an isocyanate-terminated prepolymer, and subjecting the isocyanate-terminated prepolymer and water (e) to chain extension reaction in a non-aqueous dispersion medium. According to this production process, a powdered thermoplastic polyurethane urea resin having excellent melt formability can be obtained, and it is easy to control a molecular weight of the polyurethane urea resin. | 10-22-2009 |
| 20090270583 | Process for Producing Pentaerythritol Mercaptocarboxylic Acid Ester, Pentaerythritol Mercaptocarboxylic Acid Ester Obtained by the Same, and Use Thereof - Pentaerythritol which contains none of the alkali metals and the alkaline earth metals or which contains at least one of these in a total amount of 1.0 weight % or smaller is reacted with a mercaptocarboxylic acid to produce a pentaerythritol mercaptocarboxylic acid ester. | 10-29-2009 |
| 20090281269 | PROCESS FOR PRODUCING PENTAERYTHRITOL MERCAPTOCARBOXYLIC ESTERS AND POLYMERIZABLE COMPOSITIONS CONTAINING THE ESTERS - A process for producing pentaerythritol mercaptocarboxylic ester by reacting pentaerythritol with a mercaptocarboxylic acid having a content of thioester formed by condensation of two molecules of the acid of 5% or below (in terms of area percentage) as determined by the high-performance liquid chromatography in the case of the total area of the mercaptocarboxylic acid and thioester formed by intermolecular condensation of the acid is taken as 100%. | 11-12-2009 |
| 20090292100 | PROCESS FOR PREPARING PENTAMETHYLENE 1,5-DIISOCYANATE - The present invention relates to a process for preparing pentamethylene 1,5-diisocyanate, to pentamethylene 1,5-diisocyanate prepared in this way and to the use thereof. | 11-26-2009 |
| 20090306327 | Method of reducing stress relaxation in polymer articles and articles formed thereby - A method of improving the mechanical properties of polymers is described. The method involves heat treating the polymer at a temperature below the glass transition temperature in a wet or in a dry environment. Polymer articles capable of moisture uptake in humid environments, as well as polymer articles less susceptible to moisture uptake, have improved mechanical properties, particularly improved stress relaxation behavior and set properties, when treated in accord with the heat treatment method. | 12-10-2009 |
| 20100036082 | POLYMER POLYOL, METHOD FOR PRODUCING THE SAME, AND METHOD FOR PRODUCING POLYURETHANE - A polymer polyol (A) that comprises a polyol (PL) and polymer particles (JR) having an ethylenically unsaturated compound (E) as a constituent unit and contained in a polyol (PL) is provided, in which a ratio of acrylonitrile in (E) is 0 mol % to 67 mol %, and relationship between a viscosity of the polymer polyol and a content (PC) of the polymer particles satisfies a formula (1) below, and/or satisfies formulae (2) and (3) below: | 02-11-2010 |
| 20100093970 | PROCESS OF PRODUCING PLASTIC LENS AND PLASTIC LENS - A process of producing a plastic lens having a high refractive index, a high Abbe's number and good mechanical strength and a plastic lens obtained by that process. A process of producing a plastic lens including a step of polymerizing a mixture of (1) a prepolymer obtained by mixing and reacting from 0.1% by weight to 10% by weight, based on the whole amount of the mixture, of sulfur and an epithio group-containing compound, (2) a polyisocyanate compound, and (3) a polythiol compound; and a plastic lens obtained by this process. | 04-15-2010 |
| 20100190951 | SOY-BASED POLYOLS - The invention provides processes for preparing soy-based oligomeric polyols or substituted oligomeric polyols, as well as urethane bioelasteromers comprising the oligomeric polyols or substituted oligomeric polyols. | 07-29-2010 |
| 20100298521 | 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 %. | 11-25-2010 |
| 20100305294 | POLYURETHANE RESIN COMPOSITION FOR REACTION INJECTION MOLDING AND MOLDED ARTICLE - Disclosed is a polyurethane resin composition for reaction injection molding, which contains an isocyanate component containing at least one of an alicyclic polyisocyanate and an aralkyl polyisocyanate and a trimer of hexamethylene diisocyanate, and a polyol component. | 12-02-2010 |
| 20110009591 | High Index and High Impact Resistant Poly(thio)urethane/Urea Material, Method of Manufacturing Same and Its Use in the Optical Field - A transparent, non elastomeric, high refractive index, impact resistant poly(thio)urethane/urea material comprising the reaction product of: a) at least one (α, ω)-diiso(thio)cyanate cycloaliphatic or aromatic polysulfide prepolymer, and b) at least one aromatic primary diamine, in an equivalent molar ratio amine function/iso(thio)cyanate function ranging from 0.5 to 2, wherein, said prepolymer and diamine are free from disulfide (—S—S—) linkage and wherein the (α, ω)-diiso(thio)cyanate polysulfide prepolymer is the reaction product of at least one cycloaliphatic or aromatic diiso(thio)cyanate and at least one (α, ω)-diol prepolymer. | 01-13-2011 |
| 20110060115 | High bio-content hybrid natural oil polyols and methods therefor - Methods of producing a hybrid petro-plant oil polyol having a high bio-content by coupling a petro-chemical polyol with a plant oil based polyol is provided, including coupling an intermediate petro-polyol prepolymer with a plant oil polyol so as to synthesize a hybrid petro-plant oil polyol having a high bio-content and a hydroxyl number of between about 50 and 60. | 03-10-2011 |
| 20110065885 | POLYISOCYANURATE ELASTOMER AND A COMPOSITION FOR PRODUCING SAME - A polyisocyanurate elastomer is produced from a composition. The composition comprises an isocyanate-reactive component and an isocyanate component. The isocyanate-reactive component comprises a diol having at least one ether group and further comprises at least one catalyst. The isocyanate-reactive component of the composition is substantially free of polyols. The isocyanate component comprises diphenylmethane diisocyanate. A method of producing the isocyanurate elastomer comprises the steps of providing the isocyanate-reactive component, providing the isocyanate component, mixing the isocyanate-reactive component and the isocyanate component to produce a reaction intermediary, and curing the reaction intermediary. | 03-17-2011 |
| 20110065886 | PROCESS FOR PREPARING HYPERBRANCHED, DENDRITIC POLYURETHANES BY MEANS OF REACTIVE EXTRUSION - The present invention relates to a process for preparing hyperbranched, dendritic polyurethanes by means of reactive extrusion. | 03-17-2011 |
| 20110065887 | PROCESS FOR PRODUCING PENTAERYTHRITOL MERCAPTOCARBOXYLIC ACID ESTER, PENTAERYTHRITOL MERCAPTOCARBOXYLIC ACID ESTER OBTAINED BY THE SAME, AND USE THEREOF - A process for producing pentaerythritol mercaptocarboxylic ester by reacting pentaerythritol with a mercaptocarboxylic acid having a content of thioester formed by condensation of two molecules of the acid of 5% or below (in terms of area percentage) as determined by the high-performance liquid chromatography in the case of the total area of the mercaptocarboxylic acid and thioester formed by intermolecular condensation of the acid is taken as 100%. | 03-17-2011 |
| 20110105714 | METHOD FOR PRODUCING POLYOLS - A process for the preparation of a polyol which includes reacting an amino-group-containing starter compound with an alkylene oxide in the presence of a catalyst to form a polyol, wherein the catalyst is based on a compound selected from the group consisting of alkali metal hydroxides, alkali, alkaline earth metal hydrides, alkaline earth metal carboxylates, and alkaline earth hydroxides, and wherein the catalyst is present in an amount of from 0.004 to 0.1 wt. % based on the amount of polyol; and neutralizing the polyol with from 0.75 to 1 mol of sulfuric acid per mol of catalyst used. | 05-05-2011 |
| 20110118432 | NATURAL OIL BASED AUTOCATALYTIC POLYOLS - The present invention relates to a vegetable oil based autocatalytic polyol derived from the reaction product of an epoxidized vegetable oil and an alkanolamine. The autocatalytic polyol according to the present invention may be used as a replacement for all or a portion of petroleum derived polyols generally used in the production of polyurethane materials. The polyurethane materials produced may be used in a variety of applications, such as, foam, elastomer and coating applications. | 05-19-2011 |
| 20110137006 | Methods for Polymerizing Films In-Situ - A method for formation of a polymer film in-situ according to the invention comprises steps of: providing a polymerizable composition in one or multiple parts; initiating polymerization of the polymerizable composition to form a polymerizing composition; prior to completion of polymerization of the polymerizable composition, forming a film therefrom; and fully polymerizing the polymerizing composition to form the polymer film. | 06-09-2011 |
| 20110313124 | METHODS OF PREPARING HYDROXY FUNCTIONAL VEGETABLE OILS - There is disclosed a process for hydroxylating vegetable oils to create polyols suitable for use in polymer processes, particularly polyurethane processes. The process includes contacting a vegetable oil with hydrogen peroxide and an organic acid having 1-3 carbon atoms under conditions sufficient to oxidize carbon to carbon double bonds found in the vegetable oil. There is also disclosed a vegetable oil based polyol having an acid number of 2.0 mg KOH/g or less. The polyol contains 0.1% w/w or less water, 0.1% w/w or less of the organic acid used to prepare the polyol, and triglyceride groups having fatty acid moieties ranging from C | 12-22-2011 |
| 20120071624 | PROCESS FOR PREPARING 1,6-HEXANEDIOL - The invention provides 1,6-hexanediol having a proportion by weight of nitrogen of less than 5 ppm, and polymers obtained by reacting the 1,6-hexanediol with at least one reactive compound. The 1,6-hexanediol is obtained by distilling a mixture including 1,6-hexanediol and more than 500 ppm of at least one carboxylic acid, ester, or both, having a boiling point higher than that of the 1,6-hexanediol and being in contact with the 1,6-hexanediol at a temperature range greater than or equal to 100° C. for at least 5 minutes before, during, or before and during, the distillation, followed by collection of the 1,6-hexanediol. In certain embodiments of this invention, the 1,6-hexanediol has a proportion by weight of nitrogen of less than 3 ppm and less than 2 ppm. | 03-22-2012 |
| 20120108779 | METHOD FOR PRODUCING POLYOLS ON THE BASIS OF RENEWABLE RESOURCES - The invention provides a method for producing polyols, comprising the steps of
| 05-03-2012 |
| 20120108780 | METHOD FOR PRODUCING POLYOLS ON THE BASIS OF RENEWABLE RESOURCES - A method for producing a polyol, the method including: | 05-03-2012 |
| 20120165494 | METHODS FOR PRODUCING POLYOLS AND POLYURETHANES - Methods for producing a polyols and polyurethanes are described. The polyols described herein can be produced directly from crude glycerin or through liquefaction of lignocellulosic biomass using a solvent comprising crude glycerin. The polyols produced in accordance with certain aspects may be derived from a significant proportion of renewable resources. | 06-28-2012 |
| 20120178895 | METHOD AND DEVICE FOR THE PRODUCTION OF A SPRAY APPLICATION CONSISTING OF REACTIVE PLASTIC - The present invention relates to a method for the production of layers and moulded parts consisting of reactive plastic, the reactive components being intermixed on a plurality of planes with the aid of mixed gases. The invention further relates to a device which allows a corresponding method. | 07-12-2012 |
| 20120184704 | METHOD FOR MANUFACTURING AN ISOCYANATE-TERMINATED PREPOLYMER, PREPOLYMER OBTAINED THEREBY, AND POLYURETHANE RESIN - The present invention relates to a method for manufacturing an isocyanate group-terminated prepolymer, comprising the following steps (a) to (d): (a) a step of ring-opening polymerizing an alkyleneoxide-containing cyclic compound by using an initiator in the presence of a composite metal cyanide complex catalyst, thereby obtaining a polyol composition containing the catalyst; (b) a step of, without removal of the composite metal cyanide complex catalyst from the polyol composition obtained in the step (a), adding water and performing a heat treatment in a closed system; (c) a step of subjecting the hydrous polyol composition after the step (b) to a dehydration treatment; and (d) a step of adding a polyisocyanate compound to the polyol composition after the step (c) and subjecting to a reaction with the polyol in the polyol composition. | 07-19-2012 |
| 20120184705 | METHOD FOR PRODUCING POLYOLS CONTAINING AMINO GROUPS - The present invention provides a simple method with no processing for producing polyols based on amino group-containing starter compounds. Unless explicitly specified, polyols are understood to be polyether polyols, polyether ester polyols and also polyether ester amide polyols. The invention also provides the polyols obtainable by the method according to the invention and the use of the polyols according to the invention to produce polyurethane materials. | 07-19-2012 |
| 20120202961 | ISOCYANATE MANUFACTURE - The present invention encompasses the finding that improvements can be achieved in manufacture of isocyanates through the use of a substitute for or a precursor of phosgene. Methods and compositions utilized in accordance with the present invention can be useful in situations in which it is difficult to use phosgene, and in particular gaseous phosgene. In some embodiments, a substitute for or a precursor of phosgene used in accordance with the present invention for preparing isocyanates is or comprises diphosgene (ClCO | 08-09-2012 |
| 20120253001 | Polyurethane-Based Sealant for Insulated Glass Units - Insulated glass units are sealed with polyurethane made using a natural oil-based polyol (NOBP). In one embodiment the NOBP is made using a monol-rich monomer containing high levels of mono-hydroxy functional fatty acid methyl esters. Insulated glass sealants based on these compounds provide enhanced resistance to UV and oxidative degradation as compared to conventional products while still providing the required barrier and mechanical properties. | 10-04-2012 |
| 20130005937 | NOVEL METHOD FOR PREPARING POLYOLS AND PRODUCTS OBTAINED - The present invention relates to a method for preparing polyols of formula (I″) | 01-03-2013 |
| 20130066035 | EUKARYOTIC ORGANISMS AND METHODS FOR INCREASING THE AVAILABILITY OF CYTOSOLIC ACETYL-COA, AND FOR PRODUCING 1,3-BUTANEDIOL - Provided herein are non-naturally occurring eukaryotic organisms that can be engineered to produce and increase the availability of cytosolic acetyl-CoA. Also provided herein are non-naturally occurring eukaryotic organisms having a 1,3-butanediol (1,3-BDO) pathway. and methods of using such organisms to produce 1,3-BDO. | 03-14-2013 |
| 20130131302 | SOY-BASED POLYOLS - The invention provides processes for preparing soy-based oligomeric polyols or substituted oligomeric polyols, as well as urethane bioelasteromers comprising the oligomeric polyols or substituted oligomeric polyols. | 05-23-2013 |
| 20130331538 | MELT PROCESSIBLE POLYUREAS AND POLYUREA-URETHANES, METHOD FOR THE PRODUCTION THEREOF AND PRODUCTS MADE THEREFROM - A polyurea or polyurea-urethane elastomer comprises a soft polymer segment and a hard polymer segment, wherein the hard polymer segment includes polyurea groups in combination with H-bond accepting chain extenders (HACEs) to reduce the flow temperature (T | 12-12-2013 |
| 20140024797 | GRANULAR POLYURETHANE RESIN COMPOSITION AND MOLDED ARTICLE OF THE SAME - Disclosed is a granular polyurethane resin composition containing a thermoplastic polyurethane resin which contains a hard segment obtained by a reaction between a polyisocyanate and a chain extender. The polyisocyanate contains isocyanate groups of 1,4-bis(isocyanatomethyl)cyclohexane in an amount of not less than 50% by more relative to the total mole number of isocyanate groups. | 01-23-2014 |
| 20140058056 | MICROORGANISMS AND METHODS FOR ENHANCING THE AVAILABILITY OF REDUCING EQUIVALENTS IN THE PRESENCE OF METHANOL, AND FOR PRODUCING 1,4-BUTANEDIOL RELATED THERETO - Provided herein is a non-naturally occurring microbial organism having a methanol metabolic pathway that can enhance the availability of reducing equivalents in the presence of methanol. Such reducing equivalents can be used to increase the product yield of organic compounds produced by the microbial organism, such as 1,4-butanediol (BDO). Also provided herein are methods for using such an organism to produce BDO. | 02-27-2014 |
| 20140107312 | Semi-Crystalline Shape Memory Polymer and Production Method Thereof - A semi-crystalline shape memory polymer with transition temperature near body temperature and the production method thereof is disclosed. The shape memory polymer comprises a polymer chain which further comprises a plurality of prepolymers and a plurality of chain extenders bonding the prepolymers together in which each prepolymer further comprises a plurality of synthesized units. The above mentioned synthesized unit is obtained by reacting polymer diol with first diisocyanate. The obtained synthesized units are polymerized together with second diisocyanate and chain extender to form the shape memory polymer. | 04-17-2014 |
| 20140200324 | PRODUCTION OF POLYOLS USING DISTILLERS GRAINS AND PROTEINS AND LIGNIN EXTRACTED FROM DISTILLERS GRAINS - Processes for the production of polyols from sources such as dried distillers grains plus solubles (DDGS) make use of a two-stage reaction scheme. In the first stage, the proteinaceous starting material is reacted with an aminating agent, such as diethanolamine (DEOA), to generate amino-amides and amides. These products are then reacted with an alkoxylating agent, preferably a substituted or unsubstituted epoxide to yield polyols. These polyols may be further reacted with isocyanates to give low-cost rigid polyurethane foams. In alternate forms, lignin may be directly converted to polyols by reaction with an alkoxylating agent, optionally followed by reaction with an isocyanate to produce polyurethanes. | 07-17-2014 |
| 20140309397 | Polyurethane Elastomers Based on TDI Prepolymers Enriched in the 2,6-TDI Isomer Cured with Trimethylene Glycol Di-(para Amino Benzoate) - Polyurethane/urea elastomer compositions which retain their dimensions at elevated temperatures. These polyurethane/urea elastomers surprisingly have improved green strength or dimensional stability upon demolding at typical mold temperatures of 80 to 130 C and remain dimensionally stable throughout the post cure process which is typically overnight at about 100 C. They are useful in indirect food contact or dry food contact applications since the compositions use trimethylene glycol di(p-aminobenzoate) as a chain extender or curative. The polyurethane/urea elastomers may be prepared by reacting toluene diisocyanate prepolymers with trimethylene glycol di(p-aminobenzoate). The toluene diisocyanate prepolymers are reaction products of toluene diisocyanate containing at least 25% by weight of the 2,6-isomer, preferentially at least 35%, more preferentially at least 45%, and most preferentially 60% with polyols such as polyoxyalkylene polyether polyols like polytetramethylene glycol, polypropylene glycol and polyethylene glycol, polyester polyols, polycaprolactone polyols, polycarbonate polyols, polybutadiene polyols or mixtures thereof. | 10-16-2014 |
| 20150038665 | PRODUCTION OF POLYOLS USING DISTILLERS GRAINS AND PROTEINS AND LIGNIN EXTRACTED FROM DISTILLERS GRAINS - Processes for the production of polyols from sources such as dried distillers grains plus solubles (DDGS) make use of a two-stage reaction scheme. In the first stage, the proteinaceous starting material is reacted with an aminating agent, such as diethanolamine (DEOA), to generate amino-amides and amides. These products are then reacted with an alkoxylating agent, preferably a substituted or unsubstituted epoxide to yield polyols. These polyols may be further reacted with isocyanates to give low-cost rigid polyurethane foams. In alternate forms, lignin may be directly converted to polyols by reaction with an alkoxylating agent, optionally followed by reaction with an isocyanate to produce polyurethanes. | 02-05-2015 |
| 20150119546 | LIGHTFAST POLYURETHANE COMPOSITIONS - The present invention relates to a composition comprising 10 to 50 wt.-% of at least one polyisocyanate a-1) based on hexamethylene diisocyanat, comprising at least one oligomeric polyisocyanate based on hexamethylene diisocyanate and optionally monomeric hexamethylene diisocyanate and 50 to 90 wt.-% of at least one polyisocyanate a-2) based on isophorone diisocyanate, comprising at least one oligomeric polyisocyanate based on isophorone diisocyanate and optionally monomeric isophorone diisocyanate, with the proviso that at least one of the components a-1) and a-2) additionally comprises monomeric isocyanate of the named kind, as well as at least one sulfur-containing component. It has been shown that the above mentioned mixture of the specific isocyanate group containing components improves the thermal and mechanical properties of a cured composition. Thus prepared molded articles are particularly suitable for the preparation of spectacle lenses, inter alia due to these properties. | 04-30-2015 |
| 20150148513 | MICROORGANISMS AND METHODS FOR PRODUCTION OF 4-HYDROXYBUTYRATE, 1,4-BUTANEDIOL AND RELATED COMPOUNDS - The invention provides non-naturally occurring microbial organisms having a 4-hydroxybutyrate, 1,4-butanediol, or other product pathway and being capable of producing 4-hydroxybutyrate, 1,4-butanediol, or other product, wherein the microbial organism comprises one or more genetic modifications. The invention additionally provides methods of producing 4-hydroxybutyrate, 1,4-butanediol, or other product or related products using the microbial organisms. | 05-28-2015 |
| 20150148514 | METHOD FOR IDENTIFYING BIOABSORBABLE POLYMERS - A system and method for producing a bioabsorbable thermoplastic polyurethane tailored to a medical application are provided. The method includes identifying suitable thermoplastic polyurethane properties based on the medical application. The thermoplastic polyurethane comprises units derived from a diol chain extender, a diisocyanate, and a polyol. The thermoplastic polyurethane properties include a biodegradation rate and at least one physical property. The method includes identifying a base thermoplastic polyurethane and altering at least one parameter of the base thermoplastic polyurethane which relates to the desired thermoplastic polyurethane properties to generate a candidate thermoplastic polyurethane. The altering may be performed iteratively until the suitable range of thermoplastic polyurethane properties based on the medical application is met. | 05-28-2015 |
| 20150315329 | METHOD FOR PREPARING NOVEL NATURAL OIL BASED HIGH TEMPERATURE ISOCYANURATE CONTAINING POLYURETHANE THERMOSETTING RESINS - Soy-based high temperature products, or thermoset resins, are produced by solvent free polymerization of soy polyols and polyisocyanates at room temperature. The ratio of isocyanate equivalents to polyol equivalent used in the synthesis is greater than or equal to 3. The invented soy-based products are polyisocyanurate solid materials with excellent stability at high temperature. Heat resistance of the material is influenced by ratio of soy polyol and polyisocyanate. | 11-05-2015 |
| 20150329752 | HYDROPHILIC POLYISOCYANATES - The invention relates to water-soluble or water-dispersible, hydrophilic polyisocyanates and polyisocyanate mixtures, to a process for preparing them, and to their use as a starting component in the production of polyurethane polymers, more particularly as crosslinkers for water-soluble or water-dispersible film-forming binders, adhesives binders, or sealant binders or binder components with or without groups which are reactive towards isocyanate groups. | 11-19-2015 |
| 20150344751 | ADHESIVE COMPOSITIONS AND METHODS - The present invention encompasses polyurethane adhesive compositions comprising aliphatic polycarbonate chains. In one aspect, the present invention encompasses polyurethane adhesives derived from aliphatic polycarbonate polyols and polyisocyanates wherein the polyol chains contain a primary repeating unit having a structure: | 12-03-2015 |
| 20150346387 | 1,4-BIS(ISOCYANATOMETHYL)CYCLOHEXANE, POLYISOCYANATE COMPOSITION, POLYURETHANE RESIN, MOLDED ARTICLE, EYEWEAR MATERIAL, EYEWEAR FRAME, AND LENS - 1,4-bis(isocyanatomethyl)cyclohexane contains 70 mol % or more and 95 mol % or less of a trans isomer relative to a total amount of a cis isomer and the trans isomer, and 0.1 ppm or more and 300 ppm or less of the compound represented by formula (1) below: | 12-03-2015 |
| 20150376480 | MOISTURE-CURABLE HOT-MELT ADHESIVE AGENT - The present invention provides a moisture-curable hot melt adhesive comprising an alicyclic urethane prepolymer having isocyanate group(s) at the ends, wherein the alicyclic urethane prepolymer comprises a chemical structure derived from a polycarbonate polyol, and at least one of the isocyanate group(s) at the ends is combined with a chemical structure derived from an aromatic ring. The moisture-curable hot melt adhesive is excellent in adhesion property (initial adhesion property and adhesion property after aging), light resistance (light-resisting adhesive force, yellowing and fading), and curing property (heat resistance). | 12-31-2015 |
| 20160194506 | SELF-HEALING POLYMER COMPOSITIONS | 07-07-2016 |
