Patents Examined by Olga Asinovsky
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Patent number: 7183356Abstract: A fluororesin powder coating composition having high light resistance and being excellent in blocking resistance and smoothness of the coating film when coated, and a fluororesin powder to be used for a powder coating material, are presented. The fluororesin powder coating composition is made by using as the main material resin a composite fluorinated copolymer powder having a core/shell structure wherein core particles are made of a fluorinated copolymer and their surfaces are covered by e.g. a (meth)acrylate resin having a glass transition temperature higher than that of the core particles. The core/shell structure is formed by seed polymerization wherein fluorinated polymer particles are used as seeds.Type: GrantFiled: March 24, 2004Date of Patent: February 27, 2007Assignee: Asahi Glass Company, LimitedInventor: Toru Ishida
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Patent number: 7183359Abstract: Polypropylene having high maleic anhydride content, between about 5 and about 45 wt %, may be prepared by first reacting a metallocene-prepared polypropylene having terminal unsaturation with one mole equivalent of maleic anhydride to give polypropylene having a single unsaturation and a terminal succinic anhydride moiety. This product is then reacted with additional maleic anhydride in the presence of a free radical initiator (such as a peroxide or UV radiation) to give a polypropylene with maleic anhydride moieties along the backbone. The polypropylene product does not suffer scission or crosslinking with subsequently undesirable increases in molecular weight or viscosity. The maleic anhydride moieties provide reactivity to the polypropylene and thus expand its uses and applications.Type: GrantFiled: October 12, 2005Date of Patent: February 27, 2007Assignee: Baker Hughes IncorporatedInventors: Paul K. Hanna, David D. Truong
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Patent number: 7179862Abstract: The invention relates to crosslinked polymerizates which are capable of absorbing, which are based on partially neutralized, monoethylenically unsaturated monomers that carry acidic groups, which exhibit improved properties, in particular, with regard to their ability to transport liquids when in a swollen state, and which have been subsequently crosslinked on the surface thereof with a combination consisting of an organic crosslinker compound, with the exception of polyols, and of a cation provided in the form of a salt in an aqueous solution.Type: GrantFiled: June 6, 2003Date of Patent: February 20, 2007Assignee: Stockhausen GmbHInventors: Richard Mertens, Joerg Harren
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Patent number: 7179863Abstract: The present invention relates to the use of films, formed from an adhesive layer and a layer (A), for coating articles made of a thermoset, the adhesive layer comprising, by weiqht: 0 to 60 parts of PVDE, 10 to 100 parts of functionalized PMMA, 0 to 50 parts of an acrylic elastomer and 0 to 4 parts of a UV absorber, the total making up 100 parts, the layer (A) comprising, as main constituents, 0 to 100 parts of PVDF per 100 to 0 parts of PMMA, respectively. This film may be manufactured by coextrusion and is then fixed to the thermoset, for example by hot pressing. The invention also relates to an SMC (Sheet Moulding Compound) multilayer structure comprising, in this order: a backing film, a crosslinkable composition (the precursor of the thermoset), the above adhesive layer and the above layer (A).Type: GrantFiled: October 3, 2003Date of Patent: February 20, 2007Assignee: Arkema FranceInventors: Anthony Bonnet, Philippe Bussi, David Silagy
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Patent number: 7169850Abstract: The present invention is a novel block copolymer containing a controlled distribution copolymer block of a conjugated diene and a mono alkenyl arene, where the controlled distribution copolymer block has terminal regions that are rich in conjugated diene units and a center region that is rich in mono alkenyl arene units. Also disclosed is a method for manufacture of the block copolymer.Type: GrantFiled: February 10, 2005Date of Patent: January 30, 2007Assignee: Kraton Polymers U.S. LLCInventors: Dale L. Handlin, Jr., Carl L. Willis
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Patent number: 7169849Abstract: A process for production of a thermoplastic elastomer composition by melt-kneading a mixture in one step to thereby conduct dynamic crosslinking, wherein the mixture comprises a hydrogenated block copolymer (a1) which is prepared by hydrogenating a block copolymer comprising a vinyl aromatic polymer block (A1) and a conjugated diene polymer block (B1) and has number-average molecular weight of 200000 or above and, if necessary, a non-hydrogenated block copolymer (a2) comprising a vinyl aromatic polymer block (A2) and a conjugated diene polymer block (B2), and contains a non-aromatic rubber softening agent (b), a peroxide-crosslinkable olefin resin (c) having a density of 0.94 g/cm3 or above, a peroxide-decomposable olefin resin (d), an organic peroxide (e), and a crosslinking aid (f), the amount of (b) being 50 to 250 parts by mass per 100 parts by mass of the sum of (a1) +(a2), the amount of (c) being 2.5 to 50 parts by mass per 100 parts by mass of (a); and the amount of (d) being 0.Type: GrantFiled: June 13, 2002Date of Patent: January 30, 2007Assignee: Kuraray Co., Ltd.Inventors: Masaki Ikuji, Koichi Wada, Masanari Uno
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Patent number: 7169848Abstract: The present invention is a novel block copolymer containing a controlled distribution copolymer block of a conjugated diene and a mono alkenyl arene, where the controlled distribution copolymer block has terminal regions that are rich in conjugated diene units and a center region that is rich in mono alkenyl arene units. Also disclosed is a method for manufacture of the block copolymer.Type: GrantFiled: February 6, 2003Date of Patent: January 30, 2007Assignee: Kraton Polymers U.S. LLCInventors: Robert C. Bening, Dale L. Handlin, Jr., Larry L. Sterna, Carl L. Willis
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Patent number: 7166678Abstract: A torsional vibration damper or other vibration damping device with a rubber vibration absorbing element. The rubber element is a peroxide-cured composition comprising 100 parts of ethylene-alpha-olefin elastomer, and 20 to 100 parts of substantially isobutylene or butene polymer having a viscosity average molecular weight greater than about 5000. The polymer may also be a copolymer of isobutylene and isoprene. The addition of the isobutylene polymer to the ethylene-alpha-olefin elastomer composition increases the vibration damping character of the rubber.Type: GrantFiled: March 31, 2004Date of Patent: January 23, 2007Assignee: The Gates CorporationInventors: Paul N. Dunlap, Bobbie E. South
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Patent number: 7166671Abstract: Thermoplastic polymer compositions, films, continues, closures, laminates can comprise a modified vinyl polymer said modified polymer having a moiety comprising a cyclodextrin compound. The cyclodextrin compound, locked into the polymer structure, can absorb impurities, permeants, or other undesirable volatile materials. The cooperation between the cyclodextrin grafted onto the thermoplastic polymer and the polymer structure can provide barrier properties to a film, web or other polymer structure. A permeant or a contaminant can be complexed or trapped within the polymer and held within the film or Web preventing the permeant or contaminant from passing into the interior of a container or enclosure.Type: GrantFiled: September 25, 2003Date of Patent: January 23, 2007Assignee: Cellresin Technologies, LLCInventors: Willard E. Wood, Neil J. Beaverson, Kasyap V. Seethamraju
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Patent number: 7160947Abstract: Graft copolymers providing soil release benefits in laundry detergent compositions contain backbone units derived from an ethylenically unsaturated monomer, hydrophilic uncharged side chains, and cationically chargeable or charged side chains containing a tertiary or quaternary nitrogen atom. Preferred copolymers have a methacrylate backbone with polyethylene oxide and 2-dimethylaminoethyl methacrylate (DMAEMA) side chains. The graft copolymers may be prepared by radical polymerisation.Type: GrantFiled: December 11, 2003Date of Patent: January 9, 2007Assignee: Unilever Home & Personal Care USA division of Conopco, Inc.Inventors: Per Martin Claesson, Petrus Wilhelmus Nicolaas de Groot, Donna MacNab, Albert van der Wal, Becky Zhou
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Patent number: 7160950Abstract: A modified olefin-based copolymer produced by graft-polymerizing an alkenyl aromatic hydrocarbon and/or an unsaturated carboxylic acid or derivative thereof to an olefin-based copolymer containing repeating units derived from a linear ?-olefin and/or ethylene copolymer of ethylene and repeating units derived from a vinyl compound (I) or (II) described below, and an adhesive containing the product as an effective ingredient, in which an adhesiveness to an adherend such as olefin resins (e.g. polyethylene, polypropylene) is further improved, are provided. Vinyl compound (I): a vinyl compound represented by the general formula CH2?CH—R, wherein steric parameters Es and B1 of the substituent R are respectively ?1.64 or less and 1.53 or more. Vinyl compound (II): a vinyl compound represented by the general formula CH2?CH—R?, wherein a substituent R? is a secondary or tertiary alkyl group.Type: GrantFiled: August 6, 2002Date of Patent: January 9, 2007Assignee: Sumitomo Chemical Company, LimitedInventors: Toshiki Mori, Nobuo Oi
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Patent number: 7153905Abstract: Hyperbranched dendron (HD) polymers are synthesized using low molecular weight polyethyleneimine (BPEI-L) as a core and used for gene delivery. The obtained polymers display low toxicity and efficient gene delivery at low nitrogen-to-phosphate (N/P) ratios. Using successive attachment of ethyleneimine moieties to a PEI core, the polymer has a lower relative ratio of linear-to-branched structures than in the core PEI. The more extensive branching enables the polymer to condense plasmid DNA into nanostructure complexes with a size of less than or equal to about 100 nm. The complexes are stable and efficient in transfecting cells in the presence of serum. Bioluminescent imaging of in vivo gene expression using a luciferase reporter gene performed in live mice showed gene expression in the liver and in submandibular lymph nodes.Type: GrantFiled: March 22, 2004Date of Patent: December 26, 2006Assignee: The General Hospital CorporationInventors: Pallab Banerjee, Wilfried Reichardt, Ralph Weissleder, Alexei Bogdanov
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Patent number: 7153896Abstract: An element for the attachment of protein arrays, the element comprising a surface to which are attached a plurality of piperazine functional groups wherein the piperazine functional groups are represented by Formula I: where R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, are hydrogen, alkyl, alkenyl, alkynyl, alkylhalo, cycloalkyl, cycloalkenyl, alkylthio, alkoxy, with the proviso that at least one of R1 to R10 be a non-labile chemical unit that attaches the piperazine functional group to the surface of the element.Type: GrantFiled: November 14, 2003Date of Patent: December 26, 2006Assignee: Eastman Kodak CompanyInventors: Kevin P. Dockery, David M. Teegarden, Tiecheng A. Qiao, Brian J. Antalek, Susan Power
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Patent number: 7151137Abstract: The invention provides water-soluble or water-swellable copolymers obtained by free-radical copolymerization of A) acryloyldimethyltaurine and/or acryloyldimethyltaurates, B) if desired, one or more other olefinically unsaturated, optionally crosslinking comonomers containing at least one oxygen, nitrogen, sulfur or phosphorus atom and possessing a molecular weight of less than 500 g/mol, the copolymerization C) taking place in the presence of at least one polymeric additive having a number-average molecular weight of from 200 g/mol to 109 g/mol. The water-soluble or water-swellable copolymers of the present invention are useful in paper processing, laundry detergents, textile processing, petroleum extraction and formulating cosmetics.Type: GrantFiled: November 28, 2001Date of Patent: December 19, 2006Assignee: Clariant GmbHInventors: Roman Morschhäuser, Matthias Löffler
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Patent number: 7148288Abstract: A process is disclosed for formation of a preformed stabilizer for use in formation of graft polyols. The preformed stabilizer has a reduced level of transesterification products and results in less reactor fouling. The preformed stabilizer is prepared in the presence of phosphorous compounds, which reduces the unwanted transesterification products.Type: GrantFiled: June 27, 2003Date of Patent: December 12, 2006Assignee: BASF CorporationInventors: Joseph P. Borst, Mao-Yao Huang, David D. Peters
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Patent number: 7148291Abstract: The thermoplastic elastomer composition of this invention includes 2 through 14 mass % of PP; 19 through 35 mass % of PB-1; and 30 through 52 mass % of olefin-based rubber, and a weight ratio of PB-1/(PP+PB-1) is 56 through 90% and a weight ratio of PB-1/(PP+(PB-1)+olefin-based rubber) is 25 through 47%.Type: GrantFiled: January 20, 2004Date of Patent: December 12, 2006Assignee: Mazda Motor CorporationInventors: Chikara Tanaka, Masaaki Onishi
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Patent number: 7144961Abstract: The present invention provides a thermoplastic elastomer composition which is not only satisfactory in rubber-like characteristics and moldability but also satisfactory in both permanent compression set and vibration damping properties and comprises an unsaturated bond-containing isobutylene polymer (A) and an olefinic resin (B).Type: GrantFiled: June 28, 2002Date of Patent: December 5, 2006Assignee: Kaneka CorporationInventors: Hironari Nakabayashi, Ryuji Fukuda, Taizo Aoyama
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Patent number: 7144955Abstract: Solvent-based, dual cure coatings incorporating thermally curable blocked polyisocyanates, which also contain unsaturated linkages, and a method for preparing these coatings. The unsaturated linkages, such as acrylate groups, can be crosslinked by free-radical mechanisms such as UV curing.Type: GrantFiled: October 27, 2003Date of Patent: December 5, 2006Assignees: Bayer MaterialScience LLC, Bayer MaterialScience AGInventors: Scott A. Grace, Michael J. Dvorchak, Richard R. Roesler, Dinesh Pethiyagoda, Michael K. Jeffries, Jan Weikard
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Patent number: 7144957Abstract: The present invention relates to polymer mixtures comprising hydrogel forming polymers capable of absorbing aqueous fluids, having different pH values and each being preparable by polymerization of olefinically unsaturated carboxylic acids or derivatives thereof, their preparation, use and hygiene articles containing same. More particularly, the invention relates to 2-component polymer mixtures comprising polymers having a pH range from acidic to neutral.Type: GrantFiled: September 26, 2002Date of Patent: December 5, 2006Assignee: BASF AktiengesellschaftInventors: Rüdiger Funk, Norbert Herfert, Mariola Wanior
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Patent number: 7144950Abstract: Methods, compositions and articles of manufacture involving cationic conjugated conformationally flexible polymers are provided. A method for the synthesis of cationic water-soluble polymers with linkages along the polymer main chain structure which disrupt the ability of the polymers to form extended-rod structures is provided. Such polymers may serve in the fabrication of novel optoelectronic devices and in the development of highly efficient biosensors. The invention further relates to the application of these polymers in assay methods.Type: GrantFiled: September 17, 2003Date of Patent: December 5, 2006Assignee: The Regents of the University of CaliforniaInventors: Guillermo C. Bazan, Bin Liu