Entries |
Document | Title | Date |
20080207845 | Method For Producing Modified Polymer And Modified Polymer Produced By The Same - A method for producing a modified polymer by reacting a tetramethylpiperidinyloxy (TEMPO) derivative having a functional group (A) and a polymer in the presence of a radical initiator to produce a polymer having the functional group (A) grafted thereon, and then, optionally, after adding additives, reacting the resultant reaction product with a compound having a functional group (B) capable of reacting with the functional group (A), whereby it is possible to simply and inexpensively introduce compounds having various types of functional groups into a nonpolar polymer. | 08-28-2008 |
20080207846 | Isocyanate-Containing Thermoplastic Polyurethane - Thermoplastic polyurethane (i) comprising from 20% by weight to 70% by weight of isocyanate dissolved in the thermoplastic polyurethane, based on the total weight of the thermoplastic polyurethane (i) comprising the isocyanates. | 08-28-2008 |
20080249257 | Latent curing agent for epoxy resin and method for manufacturing the same - A latent epoxy resin curing agent is provided which can be manufactured without using an amphiphilic polymer compound requiring a painful trial and error selection process, exhibits excellent solvent resistance and low-temperature fast-curing ability, and contains an imidazole-based compound as a main component. In the latent epoxy resin curing agent containing the imidazole-based compound as a main component, adduct particles formed through adduct reaction of an epoxy-based compound with the particulate imidazole-based compound are coated with an ethyl cellulose film. Furthermore, the surfaces of the adduct particles may be crosslinked with a polyfunctional isocyanate compound. A mixture of the epoxy-based compound, the particulate imidazole-based compound, and ethyl cellulose in a predetermined saturated hydrocarbon-based solvent is heated under stirring. Then, the epoxy-based compound and the particulate imidazole-based compound are subjected to adduct reaction to give a slurry of the adduct. After the slurry is cooled, the latent epoxy resin curing agent is filtrated. If necessary, the ethyl cellulose film is crosslinked with a polyfunctional isocyanate compound. | 10-09-2008 |
20080249258 | Latent curing agent for epoxy resin and method for manufacturing the same - A latent epoxy resin curing agent is provided which can be manufactured without using an amphiphilic polymer compound requiring a painful trial and error selection process, exhibits excellent solvent resistance and low-temperature fast-curing ability, and contains an imidazole-based compound as a main component. In the latent epoxy resin curing agent containing the imidazole-based compound as a main component, the adduct particles of the epoxy-based compound and the imidazole-based compound are coated with an ethyl cellulose film, and the surface thereof is crosslinked with a polyfunctional isocyanate compound. The epoxy-based compound, the imidazole-based compound, and ethyl cellulose are dissolved in a predetermined saturated hydrocarbon-based solvent under stirring and heating. Then, the epoxy-based compound and the imidazole-based compound are subjected to adduct reaction to obtain a slurry of the adduct. After the slurry was cooled, the polyfunctional isocyanate compound is added thereto to crosslink the ethyl cellulose film. | 10-09-2008 |
20080262168 | Process For Preparing a Polyisocyanurate Polyurethane Material - A process for preparing a polyisocyanurate polyurethane material, which process comprises reacting a polyisocyanate and an isocyanate-reactive composition, wherein the reaction is conducted at an isocyanate index of 1600 to 100,000 and in the presence of a trimerisation catalyst, wherein the polyisocyanate comprises a) 75-100% by weight of diphenylmethane di-isocyanate comprising at least 40%, preferably at least 60% and most preferably at least 85% by weight of 4,4′-diphenylmethane diisocyanate and/or a variant of said diphenylmethane diisocyanate which variant is liquid at 25° C. and has an NCO value of at least 20% by weight (polyisocyanate a), and b) 25-0% by weight of another polyisocyanate (polyisocyanate b), the amount of polyisocyanate a) and polyisocyanate b) being calculated on the total amount of this polyisocyanate a) and polyisocyanate b), and wherein the isocyanate-reactive composition comprises a) 80-100% by weight of a polyether polyol having an average nominal functionality of 2-6, an average equivalent weight of 1100-5000 and an oxyethylene (EO) content of 65-100% by weight and b) 20-0% by weight of one or more other isocyanate-reactive compounds, the amount of polyol a) and isocyanate-reactive compound b) being calculated on the total amount of this polyol a) and compound b). | 10-23-2008 |
20080287612 | Cationic Electrodeposition paint compositions - This invention discloses a cationic electrodeposition paint composition containing an amino group-containing modified epoxy resin which is obtained through reaction of specific modified epoxy resin with xylene formaldehyde resin having phenolic hydroxyl groups and amino group-containing compound. The cationic electrodeposition paint composition excels in film thickness retention, finished appearance of coating film and electrocoatability of galvanized alloy steel sheet and can form coating film having good corrosion resistance, even when its content of volatile organic compound (VOC) is reduced. | 11-20-2008 |
20090005517 | Process for Making a Polyisocyanurate Composite - Process for making a polyisocyanurate composite which process comprises combining a polyisocyanate, a polyether polyol and a trimerization catalyst with a to-be-bonded material to form a reactive composite, and allowing in a next step this reactive composite to react at elevated temperature, wherein the amount of the reactive binder composition is 1-60% by weight and the amount of the to-be-bonded material is 40-99% by weight, both calculated on the amount of the reactive binder composition plus the amount of the to-be-bonded material, wherein the amount of the polyisocyanate and the polyol is such that the index is 150-10000, characterized in that the polyol is a polyol having an average equivalent weight of 100-2500 and an oxyethylene content of at least 50% by weight. | 01-01-2009 |
20090012244 | COMPOSITIONS INCLUDING A POLYTHIOETHER - Compositions, such as aerospace sealant, coating, and/or potting compositions are disclosed. The compositions include a polythioether and, in at least some cases, can be sprayable and fuel resistant even when substantially free of volatile organic compounds. | 01-08-2009 |
20090054603 | LOW-CURE POWDER COATINGS AND METHODS FOR USING THE SAME - Low-cure powder coating compositions are disclosed. The compositions comprise a polyepoxide and a material having the structure | 02-26-2009 |
20090062483 | NANOPARTICLE PRECURSOR STRUCTURES, NANOPARTICLE STRUCTURES, AND COMPOSITE MATERIALS - Nanoparticle precursor structures, nanoparticle structures, and composite materials that include the nanoparticle structures in a polymer to form a composite material. The nanoparticle structures have chemical linkage moieties capable of forming non-covalent bonds with portions of a polymer for the composite material. Such composite materials are useful as biomaterials in medical devices. | 03-05-2009 |
20090069510 | Cationic electrodeposition paint compositions - This invention discloses cationic electrodeposition paint compositions which comprise specific amino group-containing modified epoxy resin, specific xylene-formaldehyde resin-modified, amino group-containing epoxy resin and blocked polyisocyanate curing agent at specific blend ratios, and which can form coating film of excellent film thickness retention, finished appearance and electrocoatability on galvanized alloy steel sheet and of good corrosion resistance, even when the amount of volatile organic compound in the cationic electrodeposition paint is reduced. | 03-12-2009 |
20090076228 | POLYISOCYANATE MIXTURES - The invention relates to liquid polyisocyanate mixtures, to a process for their preparation and to their use in single- and two-component polyurethane coating compositions. | 03-19-2009 |
20090143542 | Uretonimine-Modified Isocyanate Composition and Method of Forming the Same - A uretonimine-modified isocyanate composition has reduced color. The uretonimine-modified isocyanate composition comprises a polyisocyanate composition having two or more isocyanate groups and comprising 4,4′-diphenylmethane diisocyanate (MDI) and a catalyst for catalyzing a reaction of the isocyanate groups to form carbodiimides available for forming uretonimines and uretonimine oligomers. A first quenching agent partially quenches the reaction of the isocyanate groups to inhibit formation of the carbodiimides thereby inhibiting additional formation of uretonimines and uretonimine oligomers and a second quenching agent different than the first quenching agent quenches the reaction of the isocyanate groups to further inhibit formation of the carbodiimides thereby further inhibiting additional formation of uretonimines and uretonimine oligomers. A method of forming the uretonimine-modified isocyanate composition is also disclosed. | 06-04-2009 |
20090171040 | Moisture-curable silylated polyurea and adhesive, sealant and coating compositions containing same - A moisture-curable, optionally cured, silylated polyurea possessing an average of from 80 to 100 equivalent percent of urea linkages based on the total equivalents of urea and urethane linkages therein is the reaction product of organofunctional silane (a) possessing hydrolyzable functionality and at least one polyurea (b) possessing amine termination or isocyanate termination, polyurea (b) being obtained from the reaction of at least one polyamine (c) and at least one polyisocyanate (d) in the substantial absence of silane (a). | 07-02-2009 |
20090176944 | Aldimines Comprising Reactive Groups Containing Active Hydrogen, and Use Thereof - The invention relates to aldimines of formula (I), the resulting products thereof, in addition to the uses thereof. The compounds containing aldimines and aldimines wherein they are odour-free and during hydrolysis separate the odour-free aldehydes. They are therefore used as sources for aldehydes and amines. | 07-09-2009 |
20090275708 | Thermosetting Epoxy Resin Composition - Even when a terminal epoxy resin is contained as the epoxy component of a thermosetting epoxy resin composition containing an aluminum chelate/silanol curing catalyst system, the epoxy resin composition can be configured to cure rapidly at low temperatures without termination of polymerization. | 11-05-2009 |
20090281251 | Exterior material for electronic device comprising thermoplastic elastomer-resin alloy - An exterior material for an electronic device housing electronic parts is disclosed, wherein the exterior material is made of a thermoplastic elastomer-resin alloy comprising 1 to 99% by weight of a thermoplastic elastomer and 1 to 99% by weight of a resin. Particularly, provided is a thermoplastic elastomer alloy resin composition is provided that is suitable for use as interior materials for electronic devices with softness, color variety, impact resistance, water resistance, durability, abrasion resistance and rigidity. | 11-12-2009 |
20090281252 | Novel thermoplastic elastomer-resin alloy composition and preparation method thereof - A thermoplastic elastomer-resin alloy composition, includes 1 to 99% by weight of a thermoplastic elastomer and 1 to 99% by weight of a resin, and a method sets forth preparation of the composition. More specifically, a novel thermoplastic elastomer alloy resin composition has softness, color variety, impact resistance, water resistance, durability, abrasion resistance and rigidity, and is suitable for use as an interior/exterior material for a variety of products. | 11-12-2009 |
20100016517 | POLYMERIZATION CATALYST FOR POLYTHIOURETHANE-BASED OPTICAL MATERIAL, POLYMERIZABLE COMPOSITION CONTAINING THE CATALYST, OPTICAL MATERIAL OBTAINED FROM THE COMPOSITION, AND METHOD FOR PREPARING THE OPTICAL MATERIAL - The polymerization catalyst for a polythiourethane-based optical material of the present invention includes a sulfonate represented by the following general formula (1). Furthermore, in the formula, R | 01-21-2010 |
20100022717 | A terminal isocyanate group-containing polyamide resin, alkoxysilane-modified polyamide resin, processes for production of the resins, hot-melt adhesive agent, and cured resin product - A terminal isocyanate group-containing polyamide resin can be produced by reacting a terminal carboxyl group-containing oligomer and a polyisocyanate compound at such a ratio that the amount of an isocyanate group exceeds that of a carboxyl group. An alkoxysilane-modified polyamide resin can be produced by reacting the terminal isocyanate group-containing polyamide resin with an alkoxysilane compound containing a secondary amine. | 01-28-2010 |
20100029860 | ALKOXYSILANE-CONTAINING RESIN, MODIFIED ALKOXYSILANE-CONTAINING RESIN, THEIR PRODUCTION METHODS, HOT MELT ADHESIVE, AND RESIN CURED PRODUCT - An alkoxysilane-containing resin is produced by reacting a terminal carboxyl group-containing oligomer with an isocyanato alkoxysilane compound. | 02-04-2010 |
20100048831 | POLYURETHANE ADHESIVE - The present invention relates to acrylic compositions capable of bonding directly with an isocyanate-containing composition, e.g. polyurethane, and methods for manufacturing the same. The acrylic compositions of the invention have multifunctional chain transfer agents and/or multifunctional crosslinkers with isocyanate-reactive groups. | 02-25-2010 |
20100063220 | COATING COMPOSITION - Coating composition comprising one or more polythiols, one or more polyisocyanates, and a base compound, e.g., an amine catalyst, and a carboxylic acid compound, e.g., cyanoacetic acid and/or a halogenated acetic acid, such as dichloroacetic acid or trifluoroacetic acid. The molar ratio of the acid compound to the basic compound is preferably at least 2:1, e.g. at least 10:1. | 03-11-2010 |
20100105842 | PROCESS FOR REACTING THERMOPLASTIC POLYURETHANES WITH COMPOUNDS HAVING ISOCYANATE GROUPS - Process for reacting thermoplastic polyurethanes with compounds having isocyanate groups, wherein the reaction is carried out in the presence of a prepolymer which is the reaction product of (a) isocyanates with (b) compounds which are reactive toward isocyanates and have a molecular weight in the range from 500 g/mol to 10 000 g/mol, preferably from 2000 g/mol to 8000 g/mol, and the prepolymer has a glass transition temperature Tg measured by means of DSC in accordance with DIN EN ISO 11357-1 below −35° C. | 04-29-2010 |
20100120992 | PROCESS FOR PREPARING MODIFIED POLYISOCYANATE - Purpose: A process for preparing a liquid organic isocyanate having a carbodiimide group and/or an uretonimine group, excellent in storage stability. Solution: In a process for preparing a modified polyisocyanate by carbodiimidizing an organic polyisocyanate in the presence of a phospholine-based catalyst, silicon dioxide particles having a specific surface area of at least 400 m | 05-13-2010 |
20100152394 | REACTIVE HOT MELT ADHESIVE - Solvent free, moisture curable reactive hot melt adhesives are prepared using an oxazolidine functional prepolymer and a polyfunctional isocyanate. | 06-17-2010 |
20100216951 | HYBRID COATINGS PREPARED FROM GLYCIDYL CARBAMATE RESINS - The invention relates to solvent-containing two-component polyurethane moisture cured hybrid sol-gel coating formulation comprising 1) an epoxy-functional binder with carbamate functionality and 2) a blended curing component comprising at least one sol gel precursor and an amine crosslinker. | 08-26-2010 |
20100280186 | FURANIC-MODIFIED AMINE-BASED CURATIVES - Aromatic polyamines are derivatized with polycarboxylic acids or their derivatives to form polyamine amides) containing pendant amine groups; the derivatives have enhanced curative properties when used as curatives for polyureas, hybrid epoxy-urethanes, hybrid urea-urethanes, chain extenders for polyurethane and polyurea elastomers, and also for reaction injection molding (RIM) products. | 11-04-2010 |
20100286344 | CURABLE COMPOSITION - To provide a curable composition comprising a polymer having a reactive silicon group as a curing component, containing no or substantially no organic metal compound, and having a high curing rate. | 11-11-2010 |
20110003944 | NOVEL COMPOSITION FROM A POLYISOCYANATE AND A POLYETHER MONOAMINE - Composition obtained by reacting a polyisocyanate which is a diphenylmethane diisocyanate, optionally comprising a homologue comprising 3 or more isocyanate groups, and/or a variant of such diisocyanate with a monoalkylether of a polyoxyalkylene monoamine having an average molecular weight of 550-3000 and an oxyethylene content of more than 50% by weight, calculated on the weight of the monoamine, and the alkyl group having 1-4 carbon atoms at index of 100-250. It is used as plasticizer, particularly in polyurethane and/or polyurea materials. | 01-06-2011 |
20110009572 | POLYMER BLENDS CONTAINING POLYDIORGANOSILOXANE UREA COPOLYMERS - Polymer blends containing organopolysiloxane-polymer-polyurethane copolymers and thermoplastic polymers bearing epoxy, carboxylic acid, carboxylic acid ester, or carboxylic acid anhydride groups exhibit enhanced physical properties. | 01-13-2011 |
20110046316 | POLYMER CARBON NANOTUBE COMPOSITES - A method for forming polymer carbon nanotube composites, the method comprising: contacting carbon nanotubes with ozone to functionalize the sidewalls of the carbon nanotubes with at least one oxygen moiety; and reacting the functionalized carbon nanotubes with at least one monomer or at least one polymer or copolymer to attach polymer chains to the sidewalls of the carbon nanotubes. | 02-24-2011 |
20110294963 | METHOD OF TOUGHENING EPOXY RESIN AND TOUGHENED EPOXY RESIN COMPOSITE - The present invention discloses a novel toughener selected from the group of polyurea, polyurethane and poly(urea-urethane) using a facile synthesis method. The toughener forms thick-interface particles, and creates an effective toughness improvement for epoxy resin. Different from the conventional epoxy/rubber composite or epoxy/thermoplastic composite, the epoxy/polyurea, epoxy/polyurethane, or epoxy/poly(urea-urethane) composite shows Newtonian rheological behaviour, a convenient property for processing. The unique feature of the toughener according to the present invention is that toughness can be significantly improved at low toughener content without losing other desirable properties. | 12-01-2011 |
20120277382 | NON-CRYSTALLIZING BIS-OXAZOLIDINES - Non-crystallizing oxazolidines as curing agents for polyisocyanates and polyurethanes. The curing agents are mixtures of at least one polyoxazolidine POU having at least two urethane groups and at least one polyoxazolidine POC having at least one carbonato group. | 11-01-2012 |
20120316295 | STEROID LIPID-MODIFIED POLYURETHANE AS AN IMPLANTABLE BIOMATERIAL, THE PREPARATION AND USES THEREOF - A modified polyurethane including a lipid substituent pendant from at least one urethane nitrogen and/or at least one carbon atom of the modified polyurethane, methods of preparing modified polyurethanes and the use thereof as an implantable biomaterial. | 12-13-2012 |
20130090435 | POWDER COATINGS COMPOSITIONS - A solid epoxy resin powder coating composition which includes a divinylarene dioxide resin as one component; and wherein the solid epoxy resin powder coating composition can be formed by blending or reacting various other components with the divinylarene dioxide resin. For example, other components can include other epoxy resins; phenolic resins; or monomeric and/or polymeric isocyanates. The powder coating composition or formulation may advantageously provide, for example, a Fusion Bonded Epoxy coating on a substrate. | 04-11-2013 |
20140135457 | OXAZOLIDONE RING CONTAINING VINYL ESTER RESIN AND PRODUCTS THEREFROM - A process comprising contacting a) an epoxy resin; b) an adduct comprising at least one oxazolidone ring prepared from a multifunctional epoxy resin and an isocyanate compound; and c) an unsaturated acid to form a vinyl ester, is disclosed. | 05-15-2014 |
20140221580 | High Molecular Weight Polycarbodiimide And Method Of Producing Same - A method of producing the high molecular weight polycarbodiimide comprises the steps of providing an isocyanate component comprising toluene diisocyanate (TDI), a carbodiimidization catalyst, and a first solvent. The method further comprises the step of polymerizing the isocyanate component in the first solvent and in the presence of the carbodiimidization catalyst to produce a reaction mixture including at least one carbodiimide compound and the first solvent. In addition, the method comprises the step of combining a second solvent and the reaction mixture. Finally, the method comprises the step of polymerizing the at least one carbodiimide compound for a second period of time in the first and second solvents and in the presence of the carbodiimidization catalyst to produce the high molecular weight polycarbodiimide. | 08-07-2014 |
20140243483 | Chiral Polymers for the Self-Assembly of Photonic Crystals - Described herein are copolymers constructed from chiral, non-racemic monomers, which self-assemble to photonic crystals. The difficulty of incorporating chiral elements into photonic crystals has limited the ability to generate unique bandstructures for different circular polarizations of light. The materials and methods described herein relate to easily, predictably fabricating chiral photonic crystals having desirable optical properties. | 08-28-2014 |
20140316075 | Linear Silicone Block Copolymer and Method of Making the Same - The present disclosure provides a composition comprising a linear silicone block copolymer of Formula (IV) wherein R is a hydrogen or a C | 10-23-2014 |
20160032054 | DYNAMIC UREA BONDS FOR REVERSIBLE AND SELF-HEALING POLYMERS - The disclosure provides reversible polymers from polyurea by modifying the nitrogen atom with hindered substituents. The reversibility of hindered urea bond (HUB) can be controlled by changing the bulkiness of the substituents, and N-tert-butyl-N-ethylurea (TBEU), with its high binding constant and short lifetime, is applicable in the design of reversible polymer and self-healing materials at mild temperatures without external stimuli. HUB can be used in the design of smart materials with its adjustable reversibility, facile synthesis, and compatibility with many other polymer structures. | 02-04-2016 |
20160152822 | 1K THERMOSET EPOXY COMPOSITION | 06-02-2016 |