Patents Examined by Tanya Zalukaeva
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Patent number: 6107425Abstract: The invention provides inter alia new methods to produce aqueous developable resin binders for negative-acting photoresists. The methods in general comprise free radical polymerization of one or more types of monomers in the presence of a free radical polymerization control agent, particularly a nitroxide polymerization control agent such as a piperidinyloxy (N-oxy) free radical, and wherein at least one of the monomer types contains a moiety that enables aqueous solution development of a photoresist composition containing the formed polymer.Type: GrantFiled: February 6, 1998Date of Patent: August 22, 2000Assignee: Shipley Company, L.L.C.Inventors: Roger F. Sinta, George G. Barclay, Jacque H. Georger, Jr., Mark D. Denison, Sheri L. Ablaza
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Patent number: 6103831Abstract: This invention relates to dye complexing polymers, and, more particularly, to water soluble poly(vinylpyridine betaines) containing a quaternary nitrogen and a carboxylate salt. The polymers herein have effective dye transfer inhibitor (DTI) properties for use, for example, laundry detergent and fabric softener compositions.Type: GrantFiled: April 7, 1999Date of Patent: August 15, 2000Assignee: ISP Investments Inc.Inventors: Jenn S. Shih, Bala Srinivas, John C. Hornby
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Patent number: 6096834Abstract: This invention provides a method of preparing a polymeric delivery system for active ingredients. The delivery system is formed either by attaching the active ingredient to a linker through a hydrolyzable covalent bond, then forming a covalent bond between the linker and a portion of the subunits of a crosslinked polymer, or by attaching a linker to a portion of the subunits of a crosslinked polymer, then attaching the active ingredient to the polymer-linker combination through a hydrolyzable covalent bond. The invention also provides a delivery system comprising an active ingredient covalently bonded through a hydrolyzable covalent bond to a linker, which is in turn covalently bonded to a portion of subunits of a crosslinked polymer.Type: GrantFiled: March 30, 1998Date of Patent: August 1, 2000Assignee: Monsanto CompanyInventor: Samuel J. Tremont
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Patent number: 6093776Abstract: This invention relates to dye complexing polymers, and, more particularly, to water soluble poly(vinylpyridine betaines) containing a quaternary nitrogen and a carboxylate salt. The-polymers herein have effective dye transfer inhibitor (DTI) properties for use, for example, laundry detergent and fabric softener compositions.Type: GrantFiled: April 26, 1999Date of Patent: July 25, 2000Assignee: ISP Investments Inc.Inventors: Jenn S. Shih, Bala Srinivas, John C. Hornby
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Patent number: 6090897Abstract: The present invention provides a curable resin composition and its application to laminate film, which can form a coating film having excellent performances such as adhesion to various substrates at a low temperature of 150.degree. C. or lower, water resistance and chemical resistance, can be suitably used for various purposes of use, and can be used safely. The curable resin composition comprises a carboxyl group-containing polymer and an oxazoline group-containing polymer, and is characterized in that the carboxyl group-containing polymer contains primary and/or secondary amino groups.Type: GrantFiled: December 8, 1997Date of Patent: July 18, 2000Assignee: Nippon Shokubai Co., Ltd.Inventors: Ichimoto Akasaki, Koichiro Saeki
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Patent number: 6087300Abstract: A method for producing a material for purification of physiological fluids of organism by chemical modification of surface exposed vinyl groups of porous hydrophobic divinylbenzene copolymer to form different surface exposed functional groups which are hydrophilous and biocompatible, without effecting a porous structure and hydrophobic interior of the initial divinylbenzene copolymer.Type: GrantFiled: December 14, 1998Date of Patent: July 11, 2000Assignee: Renal Tech International LLCInventors: Vadim Davankov, Ludmila Pavlova, Maria Tsyurupa
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Patent number: 6084032Abstract: A polymer composition containing carboxyl groups which has excellent water solubility, thickening properties and flow characteristics. The composition comprises (A) a crosslinked polymer comprising (a) an .alpha.,.beta.-unsaturated carboxylic acid and (b) a compound having at least two ethylenically unsaturated groups, and (B) at least one polymer comprising N-vinylpyrrolidone as essential monomer.Type: GrantFiled: April 22, 1998Date of Patent: July 4, 2000Assignee: Sumitomo Seika Chemicals Co., Ltd.Inventors: Masato Fujikake, Shinji Kobayashi, Shigeki Hamamoto, Mitsutaka Tabata, Tomoki Kawakita
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Patent number: 6077920Abstract: The present invention provides a process and apparatus for feeding powders such as fine, cohesive, or powdery particulate materials from a low pressure system to a high pressure system. In a preferred embodiment a process and apparatus of pressurizing and feeding carbon black fluff to a polymerization reactor is provided particularly a gas phase fluidized polymerization reactor to provide for a close-coupling of a carbon black reactor to a polymerization reactor.Type: GrantFiled: November 12, 1997Date of Patent: June 20, 2000Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Duan-Fan Wang, Robert Lorenz Boysen, Leonard Sebastian Scarola, Gary Harry Williams
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Patent number: 6075106Abstract: The present invention relates to (co)polymers which contain at least one repeat chain unit selected from the group comprising the general formula (1) and (2) and optionally (3), ##STR1## in which L.sup.1 and L.sup.2 mutually independently mean a photoluminescent residue.Type: GrantFiled: August 27, 1996Date of Patent: June 13, 2000Assignee: D-51368 Bayer AGInventors: Yun Chen, Burkhard Kohler, Rolf Wehrmann, Andreas Elschner, Ralf Dujardin
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Patent number: 6071847Abstract: The invention provides solid supported anionic catalysts, suitable for gas phase anionic polymerization of conjugated diene monomers, that are useful for anionically producing very high molecular weight branched diene polymers, such as styrene butadiene rubber, polybutadiene rubber, polyisoprene rubber, and the like. The catalysts comprise a metalatable particle, such as a bound rubber, a thermoplastic polymer or a cured elastomer, that is multiply metalated with Group IA alkali metal atoms. The multi-branched diene polymers obtained by gas phase anionic polymerization employing the catalysts exhibit desirable properties, such as an extremely high molecular weight, a controlled molecular weight distribution, T.sub.g and vinyl content, and the ability to readily absorb hydrocarbon solvents and oils. The polymers are easily compounded to form vulcanizable elastomeric compounds and articles, such as tires, that have excellent resistance to wear and tear and exhibit reduced hysteresis properties.Type: GrantFiled: March 13, 1998Date of Patent: June 6, 2000Assignee: Bridgestone CorporationInventors: William M. Cole, William L. Hergenrother, Theodore J. Knutson, Georg G. A. Bohm
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Patent number: 6066708Abstract: This invention provides a process to produce a composition that comprises diluent and copolymer and also provides the composition. The process of this invention comprises: (a) producing a composition that comprises diluent and copolymer; and (b) removing a portion of said diluent from said composition. This produces a composition that has a lower amount of diluent and a lower amount of imperfections.Type: GrantFiled: August 29, 1997Date of Patent: May 23, 2000Assignee: Phillips Petroleum CompanyInventors: Larry L. Nash, Carleton E. Stouffer, George A. Moczygemba, Richard Peacock, Ralph C. Farrar, Jr.
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Patent number: 6063504Abstract: Disclosed is a composite olefin resin laminated sheet comprising a surface layer and an intermediate layer, wherein the surface layer comprises an olefin resin composite material having a melt flow rate of not higher than 20 g/10 min and a density of 1.00 to 1.90 g/cm.sup.3, and the intermediate layer comprising (1) a composite olefin resin composition comprising 100 parts by weight of an olefin resin composite material having a melt flow rate of not higher than 20 g/10 min and a density of 1.00 to 1.90 g/cm.sup.3 and 0.01 to 10 parts by weight of polytetrafluoroethylene or (2) an olefin resin composition comprising 100 parts by weight of an olefin resin having a melt flow rate of 0.3 to 20 g/10 min and a density of not less than 0.890 g/cm.sup.3 and 0.01 to 10 parts by weight of polytetrafluoroethylene.Type: GrantFiled: December 4, 1998Date of Patent: May 16, 2000Assignee: Japan Polychem CorporationInventors: Yoshinobu Nagaoka, Akihiko Egashira, Toshimitsu Hasegawa
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Patent number: 6060571Abstract: Acrolein polymer from acrolein and one or more polyhydric alcohols, characterized by release of monomeric acrolein in aqueous systems and hence by a prolonged effect on microorganisms, is prepared by adding acrolein to a reaction medium containing catalyst in dissolved form, and not allowing the temperature of the reaction medium to rise about 50.degree. C. The acrolein polymer may be used in aqueous systems as a biocide.Type: GrantFiled: February 21, 1997Date of Patent: May 9, 2000Assignee: Degussa AktiengesellschaftInventors: Peter Werle, Hans-Peter Krimmer, Martin Trageser, Franz-Rudolf Kunz
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Patent number: 6057409Abstract: A process for the preparation of carrier powder polymer coatings which comprises the supercritical polymerization of two monomers and surfactant in a supercritical medium.Type: GrantFiled: April 3, 1995Date of Patent: May 2, 2000Assignee: Xerox CorporationInventors: Michael F. Cunningham, Hadi K. Mahabadi
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Patent number: 6051660Abstract: A polyacetal resin molded article excellent in thermal aging resistance and surface appearance of molded article in which an amino-substituted triazine compound is dispersed in the form of particles having an average particle size of not more than 1 .mu.m in a polyacetal resin, which molded article is obtained by melt-kneading a polyacetal resin having a formaldehyde content of 1,000 to 3,000 with an amino-substituted triazine compound for a time of 250 seconds or less.Type: GrantFiled: February 12, 1998Date of Patent: April 18, 2000Assignee: Asahikasei Kogyo Kabushiki KaishaInventor: Mikio Oka
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Patent number: 6048942Abstract: A thermoplastic olefin composition useful for making molded articles with high surface gloss and mar resistance includes (1) about 10 to about 90 parts of a propylene homopolymer, copolymer, or terpolymer, (2) about 90 to about 10 parts of either an olefin polymer composition that contains a low molecular weight ethylene copolymer rubber; an elastomeric copolymer of ethylene and a C.sub.3 -C.sub.8 .alpha.-olefin made with a metallocene catalyst, or a mixture of the two, and (3) about 0.1 to about 10 parts of a lubricant per hundred parts of (1) plus (2).Type: GrantFiled: August 15, 1997Date of Patent: April 11, 2000Assignee: Montell North America Inc.Inventors: Charles K. Buehler, Stephen M. Dwyer, Douglas Mosier, Matthew L. Paschick
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Patent number: 6043321Abstract: Tire rubbers which are prepared by anionic polymerization are frequently coupled with a suitable coupling agent, such as a tin halide, to improve desired properties. It has been unexpectedly found that greatly improved properties for tire rubbers, such as lower hysteresis, can be attained by asymmetrically coupling the rubber.Type: GrantFiled: January 19, 1998Date of Patent: March 28, 2000Assignee: The Goodyear Tire & Rubber CompanyInventors: Adel Farhan Halasa, Shingo Futamura, Wen-Liang Hsu, Barry Allen Matrana
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Patent number: 6028142Abstract: The present invention relates to a crosslinked elastomer with thermoplastic conversion and to a process for its manufacture. The elastomer with thermoplastic conversion is characterized in that it includes at least one polyoctene and a grafted polyolefin. The invention has numerous industrial applications, especially in the manufacture of insulating and/or leakproofing gaskets and packings as employed for thermal and sound insulation and/or leakproofing against water and moisture, as well as of conduits, tubes, pipes, tubings, couplings and the like for the transfer of fluids.Type: GrantFiled: January 20, 1998Date of Patent: February 22, 2000Assignee: HutchinsonInventor: Nicolas Garois
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Patent number: 6020434Abstract: Blends of at least two polyethylenes are described for extrusion coatings, blown films and cast films. The gloss exhibited by such coatings or films is surprisingly higher than the gloss of the individual components.Type: GrantFiled: February 13, 1998Date of Patent: February 1, 2000Assignee: Eastman Chemical CompanyInventors: Ray Edwards, Whitney Kay
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Patent number: 6020439Abstract: A method for hydrogenating living polymers that include mainly conjugated double bond monomers and aromatic vinyl monomers. At least one conjugated diene compound is polymerized or copolymerized in an inert solvent by using a polymerization initiator of organic alkali metal. The produced polymer is contacted with hydrogen in the presence of a catalyst. The catalyst is formed of a cyclopentadienyl titanium compound represented by: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are independently selected from halogen groups, C.sub.1 -C.sub.8 alkyl groups, C.sub.1 -C.sub.8 alkoxy groups, C.sub.6 -C.sub.20 aryloxy groups, C.sub.6 -C.sub.20 cycloalkyl groups, silyl groups, and carbonyl groups. A cocatalyst is provided of alkoxylithium compound represented by:R.sub.4 O--Liwherein R.sub.4 is a hydrocarbon. This cocatalyst selectively hydrogenates the unsaturated double bonds in the conjugated diene units of the living polymer.Type: GrantFiled: January 26, 1998Date of Patent: February 1, 2000Assignee: Korea Kumho Petrochemical Co., Ltd.Inventors: Young-Hoon Ko, Hoo-Chae Kim