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| Number | Title | Issue Date |
| 7999066 | Copper removal from ATRP products by means of addition of sulfur compounds The present invention relates to a precipitation process for removing transition metals from polymer solutions. Specifically, it comprises the removal of transition metal complexes which usually comprise copper from polymer solutions after a completed atom transfer ... | 08/16/2011 |
| 7897720 | Method for removing catalyst residues from polymer solution and polymers purified by the method Disclosed is a method for removing a metallic compound catalyst residue from a polymer solution which is prepared in the presence of a catalyst containing metal of Group 10 using a thiourea compound, a polymer from which the metallic compound catalyst residue is rem... | 03/01/2011 |
| 7812115 | Method for preparing high molecule latex resin powder The present invention relates to a method for preparing a high molecular weight latex resin powder, and more precisely, a method for preparing a high molecular weight latex resin powder which comprises the steps of preparing a slurry by coagulating a high molecular ... | 10/12/2010 |
| 7470768 | Polyhydroxyalkanoate having vinyl group, ester group, carboxyl group, and sulfonic group, and method of producing the same To provide a novel polyhydroxyalkanoate having a reactive functional group in a molecule and a method of producing the same; and a novel polyhydroxyalkanoate having a new function obtained by chemically modifying the polyhydroxyalkanoate having a reactive functional... | 12/30/2008 |
| 7439317 | Amorphous polyester chip and method for production thereof, and method for storage of amorphous polyester chip An amorphous polyester chip having superior processing ability is characterized by a moisture content of not more than 300 ppm and a fine particle content of not more than 500 ppm. A preferred embodiment is a copolymerized polyester chip comprising a main repeating ... | 10/21/2008 |
| 7432331 | Hydrolytically stable maleimide-terminated polymers The present invention is directed to hydrolytically stabilized maleimide-functionalized water soluble polymers and to methods for making and utilizing such polymers and their precursors. ... | 10/07/2008 |
| 7432330 | Hydrolytically stable maleimide-terminated polymers The present invention is directed to hydrolytically stabilized maleimide-functionalized water soluble polymers and to methods for making and utilizing such polymers and their precursors. ... | 10/07/2008 |
| 7375176 | Liquid crystal poly(phenylene sulfonic acids) A rigid, rod liquid crystal polymer includes a poly(phenylene sulfonic acid). ... | 05/20/2008 |
| 7368061 | Process and device for the production of elastomer-modified thermoplastics A continuous process for the production of an elastomer-modified thermoplastic is disclosed. The process entails (i) obtaining graft elastomer (D) having residual moisture content of 1 to 50 wt. %, particularly 5 to 50 wt. %, particularly preferably 10 to 40 wt. %, ... | 05/06/2008 |
| 7355057 | Liquid transition metal acetylide chromophores The present invention relates to a series of platinum acetylide nonlinear optical chromophores which are liquid at room temperature. The viscosity of these liquid chromophores is low enough that they are easily processable into optical cells and can be used for nonl... | 04/08/2008 |
| 7341142 | Elastomer composite materials in low density forms and methods A bale of elastomer composite is formed of elastomer and filler, the bale having a void volume of at least 3%. In another aspect, a container is provided, at least a portion of the container being occupied by elastomer composite pieces of elastomer and filler, where... | 03/11/2008 |
| 7339007 | Low sediment process for thermally reacting highly reactive polymers and enophiles A process for forming an ene reaction product wherein an enophile, such as maleic anhydride, is reacted with reactive polyalkene having a terminal vinylidene content of at least 30 mol. %, at high temperature in the presence of a free radical inhibitor. The polyalke... | 03/04/2008 |
| 7323506 | High performance P(VDF-TrFE) copolymer for pyroelectric conversion A process for purifying a P(VDF-TrFE) copolymer to produce an improved high performance copolymer for pyroelectric conversion. Pellets of a P(VDF-TrFE) copolymer are dissolved in a solvent to form a solution. Subsequently, anhydrous ethanol is added to the solution ... | 01/29/2008 |
| 7319116 | Flame-resistant polycarbonate molding composition modified with a graft polymer A flame resistant thermoplastic molding composition having improved mechanical properties is disclosed. The composition contains polycarbonate, a graft polymer and a phosphorus compounds of formula (I): and a mix... | 01/15/2008 |
| 7312268 | Water-absorbent carboxyl-containing polymers with low monomer content A water absorbent polymer with reduced residual monomer content is prepared using silver ions and/or colloidal silver. ... | 12/25/2007 |
| 7309758 | Polybenzimidazole compounds, polymeric media, and methods of post-polymerization modifications A PBI compound includes imidazole nitrogens at least a portion of which are substituted with a moiety containing a carbonyl group, the substituted imidazole nitrogens being bonded to carbon of the carbonyl group. At least 85% of the nitrogens may be substituted. The... | 12/18/2007 |
| 7309729 | Aqueous additive systems for polymeric matrices Aqueous-form additive systems, and methods of blending the same with a matrix resin, are disclosed whereby acrylic-based impact modifier compositions, butadiene-based impact modifier compositions and acrylic-based processing aids are used in aqueous form without the... | 12/18/2007 |
| 7304113 | Method for partially and selectively hydrogenating polymers made of conjugated dienes The invention relates to a method for partially and selectively hydrogenating a polymer made of at least a conjugated diene monomer having a vinyl content of from 20 to 65%, comprising a hydrogenation step on a solution of the polymer, characterized in that the hydr... | 12/04/2007 |
| 7301003 | Method of preparing polymers having terminal amine groups The present invention is directed to methods of preparing linear polymers such as polyalkylene oxides containing a terminal amine in high purity. One preferred method includes reacting a polyalkylene oxide such as polyethylene glycol containing a terminal azide with... | 11/27/2007 |
| 7301002 | Sulfonated polyphenylene polymers Improved sulfonated polyphenylene compositions, improved polymer electrolyte membranes and nanocomposites formed there from for use in fuel cells are described herein. The improved compositions, membranes and nanocomposites formed there from overcome limitations of ... | 11/27/2007 |
| 7294685 | Sulfonated polyphosphazene derivative and method for producing the same A polyphosphazene derivative and an aromatic ring compound are bonded to one another to obtain an intermediate product. Subsequently, anhydrous sulfuric acid is added in such an amount that the molar ratio is 2 to 8 with respect to a repeating unit of the intermedia... | 11/13/2007 |
| 7288218 | Deaggregated electrically conductive polymers and precursors thereof Deaggregated substituted and unsubstitued polyparaphenylenes, polyparaphenylevevinyles, polyanilines, polyazines, polythiophenes, poly-p-phenylene sulfides, polyfuranes, polypyrroles, polyselenophene, polyacetylenes formed from soluble precursors and combinations th... | 10/30/2007 |
| 7279244 | Fuel cell, polyelectrolyte and ion-exchange resin use for same The object of this invention is to provide a solid polymer electrolyte which is excellent in durability and of low cost, and membranes, solutions for electrode catalyst coating, membrane/electrode assemblies and fuel cells which use the electrolyte. According to thi... | 10/09/2007 |
| 7265199 | Poly-tri-fluoro-ethoxypolyphosphazene coverings and films The present invention relates to an anti-thrombogenic, physically well-tolerated polymer and its use for manufacturing sheaths and films as a component of therapeutic devices for preventing excessive cell proliferation. Furthermore, it relates to films made from the... | 09/04/2007 |
| 7259230 | Polybenzimidazole compounds, polymeric media, and methods of post-polymerization modifications A PBI compound includes imidazole nitrogens at least a portion of which are substituted with an organic-inorganic hybrid moiety. At least 85% of the imidazole nitrogens may be substituted. The organic-inorganic hybrid moiety may be an organosilane moiety, for exampl... | 08/21/2007 |
| 7241833 | Phenolic novolaks and process for production thereof A process for production of phenolic novolak which comprises the step of conducting heterogeneous reaction of a phenol with 0.40 to 0.93 mol of an aldehyde per mol of the phenol in the presence of at least 25 parts by mass of a phosphoric acid per 100 parts by mass ... | 07/10/2007 |
| 7238771 | Dibenzodiazocine polymers Dibenzodiazocine polymers, methods for producing dibenzodiazocine polymers, products formed from dibenzodiazocine polymers, and uses for such dibenzodiazocine polymers are provided. ... | 07/03/2007 |
| 7226987 | Aromatic polymer phosphonic acid derivative and process for production the same Provided is an aromatic polymer phosphonic acid derivative in which a phosphonic acid derivative group is directly bound to aromatic ring. Said aromatic polymer phosphonic acid derivative can be produced by brominating a specific aromatic polymer compound with a bro... | 06/05/2007 |
| 7220817 | Process for producing polyarylene sulfide A process for producing polyarylene sulfide includes: steps of reacting an aromatic dihalide compound and an alkaline metal compound in a polar organic solvent for polymerization under heating and cooling a system including the reaction mixture to recover particulat... | 05/22/2007 |
| 7214742 | 2-hydroxyphenyl-s-triazine crosslinkers for polymer networks Compounds of the general formula I′ in which R1 is H, C1–C12alkyl; C5–C12cycloalkyl; C2–C18alkyl which is interrup... | 05/08/2007 |
| 7195834 | Metallized conducting polymer-grafted carbon material and method for making A composition comprising particulate carbonaceous material and a conducting polymer containing hetero atoms. The composition can further comprise a metal. Devices comprising the composition can be constructed including supported electrocatalysts, membrane electrode ... | 03/27/2007 |
| 7186790 | Sulfonated polyphenylene polymers Improved sulfonated polyphenylene compositions, improved polymer electrolyte membranes and nanocomposites formed there from for use in fuel cells are described herein. The improved compositions, membranes and nanocomposites formed there from overcome limitations of ... | 03/06/2007 |
| 7183371 | Method for making polycarbonate A method of making polycarbonate comprises melt-polymerizing an aromatic dihydroxy compound and a carbonic acid diester in a presence of a polymerization catalyst in a reactor system producing a byproduct stream, wherein the polymerization catalyst comprises a quate... | 02/27/2007 |
| 7175930 | Conducting polymer-grafted carbon material for fuel cell applications A composition comprising particulate carbonaceous material and a conducting polymer containing hetero atoms. The composition can further comprise a metal. Devices comprising the composition can be constructed including supported electrocatalysts, membrane electrode ... | 02/13/2007 |
| 7173103 | Modified Suzuki-method for polymerization of aromatic monomers A process for preparing high molecular weight polymers or copolymers by Suzuki coupling. The catalyst used in the process comprises a source of palladium and a source of a phosphine characterized in that at least one substituent on the phosphine is an ortho substitu... | 02/06/2007 |
| 7173104 | Products, especially moulding materials of polymers containing triazine segments, method for the production thereof and uses of the same The invention relates to products, especially moulding materials of polymers containing triazine segments and consisting of mixtures of meltable 4–18 ring oligotriazine ethers which are soluble in highly polar solvents, and in which the triazine rings are predomin... | 02/06/2007 |
| 7169499 | Sulfonated polyphosphazenes, uses thereof, and methods for preparing same Polyphosphazene polymers having at least one sulfonated pendent group, and no more than five different sulfonated pendent groups, repeated along the polymer chain, wherein at least one the repeated sulfonated pendent groups links at least one SO3− | 01/30/2007 |
| 7148296 | Capped poly(arylene ether) composition and process A thermoset composition exhibiting reduced water absorption in the cured state includes an olefinically unsaturated monomer and a capped poly(arylene ether) prepared by the reaction of an uncapped poly(arylene ether) with an anhydride capping agent. The capped poly(... | 12/12/2006 |
| 7148292 | Method for hydrogenation of polymers in dispersed medium The invention concerns a method for hydrogenation of unsaturated polymers in dispersed medium based on an oxidation-reduction system containing hydrazine, an oxidant such as a peroxide and optionally a carboxylic acid. The hydrogenation rate can reach 100% in certai... | 12/12/2006 |
| 7148301 | High purity fluoropolymers The invention relates to high purity fluoropolymers and processes for making such materials. These polymers are particularly suited for applications in the semiconductor industry. The process comprises removal of unstable polymer end groups by fluorination and remov... | 12/12/2006 |
