Patent application number | Description | Published |
20090216006 | COVALENTLY BOUND POLYSACCHARIDE-BASED CHIRAL STATIONARY PHASES AND METHOD FOR THEIR PREPARATION - The present invention relates to liquid chromatographic chiral stationary phases (CSPs) and their preparation. The CSPs are based on carbamate-derivatized polysaccharides that are covalently bound onto inorganic oxide carriers via unique linkage chemistry. The present invention also relates to methods of obtaining the said linkages, which include derivatizing and functionalizing the polysaccharides, and also chemically bonding the functionalized carbamate-derivatized polysaccharides onto inorganic oxide carriers. The polysaccharide derivatives so obtained can be used as materials for the liquid chromatographic chiral separation of enantiomers. The preferred inorganic oxides are silica, zirconium oxide, and aluminum oxide. Cellulose and amylose are the preferred chiral polysaccharides. | 08-27-2009 |
20090269488 | VARNISH COMPOSITIONS FOR ELECTRICAL INSULATION AND METHOD OF USING THE SAME - A varnish composition for producing an electrically insulative thermoset coating is disclosed. The varnish composition includes a functionalized poly(phenylene ether) having at least one aliphatic unsaturated group and exhibiting an intrinsic viscosity in the range of about 0.06 to about 0.25 deciliter per gram, measured in chloroform at 25° C. The varnish composition further includes an unsaturated polyester resin or vinyl ester resin, a reactive liquid monomer, and a compatibilizing agent. When cured, the polymers and reactive liquid monomer form an electrically insulative thermoset. | 10-29-2009 |
20100080892 | VARNISH COMPOSITIONS FOR ELECTRICAL INSULATION AND METHOD OF USING THE SAME - A varnish composition for producing an electrically insulative thermoset coating is disclosed. The varnish composition comprises a functionalized poly(phenylene ether), an unsaturated polyester, and/or a vinylester resin. The varnish composition further comprises a reactive liquid monomer and a block copolymer comprising a poly(olefin) block, or a poly(diolefin) block, and at least one terminal poly(alkenyl aromatic) block comprising repeat units derived from an alkenyl aromatic monomer. When cured, the polymers and reactive liquid monomer forms an electrically insulative thermoset that provides superior crack resistance. | 04-01-2010 |
20100119716 | VARNISH COMPOSITIONS FOR ELECTRICAL INSULATION AND METHOD OF USING THE SAME - A process for preparing a redistributed poly(phenylene ether), comprising reacting a poly(phenylene ether) in a reactive diluent monomer with a polyhydric phenol in the presence of a redistribution catalyst to form a composition comprising a redistributed poly(phenylene ether) in the reactive monomer diluent. The redistributed poly(phenylene ether) exhibits an intrinsic viscosity in the range of about 0.06 deciliters per gram to about 0.25 deciliters per gram, measured in chloroform at 25° C. The redistributed poly(phenylene ether) can be functionalized and admixed with unsaturated resin such as an unsaturated polyester resin or vinyl ester resin to obtain a varnish composition that, when cured, can form an electrically insulative thermoset. | 05-13-2010 |
20110092648 | Electrostatic Dissipative TPU and Compositions Thereof - The present invention relates to an electrostatic dissipative thermoplastic polyurethane composition made by reacting (a) at least one polyester polyol intermediate with (b) at least one diisocyanate and (c) at least one chain extender. The polyester polyol intermediate, may be derived from at least one dialkylene glycol and at least one dicarboxylic acid, or an ester or anhydride thereof. The invention further provides for methods of making said thermoplastic polyurethane composition, polymer blends containing said thermoplastic and polymer articles made from said thermoplastic. | 04-21-2011 |
20110294966 | VARNISH COMPOSITIONS FOR ELECTRICAL INSULATION AND METHOD OF USING THE SAME - A varnish composition for producing an electrically insulative thermoset coating is disclosed. The varnish composition includes a functionalized poly(phenylene ether) having at least one aliphatic unsaturated group and exhibiting an intrinsic viscosity in the range of about 0.06 to about 0.25 deciliter per gram, measured in chloroform at 25° C. The varnish composition further includes an unsaturated polyester resin or vinyl ester resin, a reactive liquid monomer, and a compatibilizing agent. When cured, the polymers and reactive liquid monomer form an electrically insulative thermoset. | 12-01-2011 |
20130022877 | Salt Modified Electrostatic Dissipative Polymers - The present invention relates to electrostatic dissipative thermoplatic urethanes (TPU) and compositions thereof. The present invention provides a composition comprising: (a) an inherently dissipative polymer and (b) a halogen-free lithium-containing salt. The invention also provides a shaped polymeric article comprising the inherently dissipative polymer compositions described herein. The invention also provides a process of making the inherently dissipative polymer compositions described herein. The process includes the step of mixing a halogen-free lithium-containing salt into an inherently dissipative polymer. | 01-24-2013 |
20130142979 | Thermoformed IC Trays Of Poly(Phenylene Ether) Compositions - The present invention relates to a component carrier tray, and more particularly, a thermoformed carrier tray for integrated circuit (IC) components such as IC chips. The trays of the present invention have the benefit of being suitable for all parts of the IC component manufacturing process, including being suitable for the steps of transporting, sorting, storing, baking, etc. Thus the trays of the present invention reduce the need for transferring IC components from one tray to another and as a result reduce manufacturing cost and risk of part damage. The trays of the present invention are particularly suitable for mid-temperature applications. | 06-06-2013 |
20130202970 | Salt Modified Inherently Electrostatic Dissipative Polymers - The present invention relates to inherently electrostatic dissipative polymers, such as thermoplastic urethanes (TPU), and compositions thereof. The present invention provides a composition comprising: (a) an inherently dissipative polymer and (b) a halogen-free metal salt of an amidoalkanesulfonic acid, a hydrocarbyl-substituted benzenesulfonic acid, or a mixture thereof, or a polymer derived therefrom. The invention also provides a shaped polymeric article comprising the inherently dissipative polymer compositions described herein. The invention also provides a process of making the inherently dissipative polymer compositions described herein. The process includes the step of mixing a halogen-free metal-containing salt into an inherently dissipative polymer. | 08-08-2013 |
20130310505 | Flame Retardant Thermoplastic Polyurethane Compositions - The present invention relates to flame retardant thermoplastic polyurethane (TPU) compositions that are prepared by compounding certain TPU's and with a polyphosphonate homopolymer or copolymer, and more specifically TPU compositions that pass ASTM E84 Class 1 and UL94 V0 ratings. The invention also relates to compositions that further include an inherently dissipative polymer to provide a TPU composition that has flame retardant properties, electrostatic discharge performance, good clarity and/or transparency, or any combination thereof. | 11-21-2013 |
20140011926 | RUBBER COMPOSITION, METHOD FOR ITS FORMATION, AND AUTOMOTIVE TIRE CONTAINING THE COMPOSITION - A rubber composition with disperse phase particles containing poly(phenylene ether) can be formed by a method that includes melt blending an uncured rubber with a poly(phenylene ether) composition containing a poly(phenylene ether) and an oil to form an uncured rubber composition, then curing the uncured rubber composition. Before being blended with the rubber, the poly(phenylene ether) composition exhibits a glass transition temperature of about 40 to about 140° C., and during blending with the rubber, the oil component of poly(phenylene ether) composition migrates from the poly(phenylene ether) composition to the rubber, leaving a poly(phenylene ether)-containing disperse phase that gives rise to a second hysteresis peak temperature of about 160 to about 220° C. as measured by dynamic mechanical analysis of the cured rubber composition. Also described are the poly(phenylene ether) composition used in the method, a cured rubber composition formed by the method, and a tire containing the cured rubber composition. | 01-09-2014 |
20140031478 | Electrostatic Dissipative Polycarbonate Compositions - The present invention relates to electrostatic dissipative polycarbonate compositions that are prepared by combining an aromatic polycarbonate polymer with a thermoplastic polyurethane based inherently dissipative polymer and a compatibilizer component that comprises a second thermoplastic polyurethane. This second thermoplastic polyurethane is a reaction product of (a) at least one polyol intermediate, (b) at least one diisocyanate, and (c) at least one chain extender, wherein (a), the polyol intermediate comprises a polycaprolactone polyol, a polycarbonate polyol, or combinations thereof. | 01-30-2014 |
20140097187 | Multilayer Composite - A flexibly multilayer composite comprising at least one barrier layer of high hardness TPU having a Shore D hardness of at least 80, a soft segment content of less than 5%, and a low gasoline vapor transmission rate of less than 1 g/M | 04-10-2014 |
20140107289 | RUBBER COMPOSITION, METHOD FOR ITS FORMATION, AND AUTOMOTIVE TIRE CONTAINING THE COMPOSITION - A rubber composition with disperse phase particles containing poly(phenylene ether) can be formed by a method that includes melt blending an uncured rubber with a poly(phenylene ether) composition containing a poly(phenylene ether) and an oil to form an uncured rubber composition, then curing the uncured rubber composition. Before being blended with the rubber, the poly(phenylene ether) composition exhibits a glass transition temperature of about 40 to about 140° C., and during blending with the rubber, the oil component of poly(phenylene ether) composition migrates from the poly(phenylene ether) composition to the rubber, leaving a poly(phenylene ether)-containing disperse phase that gives rise to a second hysteresis peak temperature of about 160 to about 220° C. as measured by dynamic mechanical analysis of the cured rubber composition. Also described are the poly(phenylene ether) composition used in the method, a cured rubber composition formed by the method, and a tire containing the cured rubber composition. | 04-17-2014 |
20140255792 | Polyurethane Based Electrolyte Systems For Electrochemical Cells - The invention relates to a polymer gel electrolyte system for use in an electrochemical cell having positive and negative electrodes, said electrolyte system comprising: (A) a poly(dialkylene ester) thermoplastic polyurethane composition; (B) an alkali metal salt; and (C) an aprotic organic solvent. The invention also provides an electrochemical cell comprising a positive electrode, a negative electrode, and (I) a polymer electrolyte disposed between said positive and negative electrodes, wherein the polymer electrolyte comprises (A) the poly(dialkylene ester) thermoplastic polyurethane composition; (B) an alkali metal salt; and (C) an aprotic organic solvent. | 09-11-2014 |
20140287323 | Polyurethane Based Membranes And/Or Separators For Electrochemical Cells - The invention relates to a membrane comprising a poly(dialkylene ester) thermoplastic polyurethane composition. The invention also provides an electrochemical cell comprising a positive electrode, a negative electrode, and (I) a separator membrane disposed between said positive and negative electrodes, wherein the said membrane comprises (A) the described poly(dialkylene ester) thermoplastic polyurethane composition. | 09-25-2014 |
20140302398 | Polyurethane-Based Electrode Binder Compositions And Electrodes Thereof For Electrochemical Cells - The invention relates to an electrode binder composition, an electrode made using the described binder composition, and an electrochemical cell made using the described electrode, where the all of these materials are made using a composition of a poly(dialkylene ester) thermoplastic polyurethane composition. The electrode is made using the described thermoplastic polyurethane and an electrode active material. The electrochemical cells can be made using the described electrodes and also using (i) membranes and/or separators made using the described poly(dialkylene ester) thermoplastic polyurethane composition; (ii) an electrolyte system based on the described poly(dialkylene ester) thermoplastic polyurethane composition; or (iii) a combination thereof. | 10-09-2014 |