Solid Polymer Derived From Hetero-o-cyclic Compounds As Sole Reactants Wherein At Least One Reactant Contains A Hetero-o-ring Other Than Solely As A 1,2-epoxy Or Anhydride, And Wherein None Of The Reactants Contains A Plurality Of Methylol Groups Or Derivatives Thereof Patents (Class 525/410)
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Publication number: 20040072961Abstract: Gel-forming macromers including at least four polymeric blocks, at least two of which are hydrophobic and at least one of which is hydrophilic, and including a crosslinkable group are provided. The macromers can be covalently crosslinked to form a gel on a tissue surface in vivo. The gels formed from the macromers have a combination of properties including thermosensitivity and lipophilicity, and are useful in a variety of medical applications including drug delivery and tissue coating.Type: ApplicationFiled: August 27, 2003Publication date: April 15, 2004Applicant: Focal, IncInventors: Chandrashekhar P. Pathak, Shikha P. Barman, C. Michael Philbrook, Amarpreet S. Sawhney, Arthur J. Coury, Luis Z. Avila, Mark T. Kieras
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Publication number: 20040039134Abstract: A phosphazene composition which has a content of volatile components of not less than 0.02% by weight and not more than 1.0% by weight when it is heated at 200° C. for 2 hours; is excellent in resistance to hydrolysis, and when the phosphazene composition is added to a resin, there is provided a resin composition which highly maintains the balance of resistance to hydrolysis, flame retardancy and stability of electric characteristics in a high-frequency field of not less than 1 GHz.Type: ApplicationFiled: August 27, 2003Publication date: February 26, 2004Inventors: Fumiki Murakami, Jun-Ichi Nakahashi, Atsushi Nanasawa, Tomoyuki Fujita
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Publication number: 20040023121Abstract: Ion-conducting (co)polymer media and ion-conducting oligomer media close in ion conductivity to organic-solvent-based electrolytes can be produced easily and safely on industrial scale. These ion-conducting (co)polymer media use (co)polymers containing at least one cyclocarbonato group, and these ion-conducting oligomer media employ oligomers containing at least two cyclocarbonato groups.Type: ApplicationFiled: July 23, 2003Publication date: February 5, 2004Applicant: Dainichiseika Color & Chemicals Mfg. Co., Ltd.Inventors: Michiei Nakamura, Sachio Yoshikawa, Minoru Takizawa, Toshiyasu Fujita, Seiji Doi, Nobuhiro Kihara
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Patent number: 6642346Abstract: This invention is directed to a coating composition used for original equipment manufacturing or refinishing uses in the automotive industry, which coating composition utilizes an acrylic polymer which contains substituted or unsubstituted exomethylene lactones or lactams as a comonomer.Type: GrantFiled: January 25, 2001Date of Patent: November 4, 2003Assignee: E. I. du Pont de Nemours and CompanyInventors: Charles J. Brandenburg, Randal D. King, Larry G. Oien, Peter W. Uhlianuk
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Graft copolymers of methylene lactones and process for emulsion polymerization of methylene lactones
Publication number: 20030171522Abstract: This invention discloses resilient, acrylic graft polymers comprising &agr;-methylene lact(one)(am) monomers such as &agr;-methylene-&ggr;-butyrolactone, and blends of such polymers with thermoplastic matrix resins.Type: ApplicationFiled: November 27, 2002Publication date: September 11, 2003Inventor: Charles J. Brandenburg -
Patent number: 6583232Abstract: Bioresorbable blends are presented for use in the manufacture of surgical implants. The blends comprise a bioresorbable copolymer and a further bioresorbable polymer.Type: GrantFiled: December 18, 2000Date of Patent: June 24, 2003Assignee: Smith & Nephew PLCInventor: Malcolm W. R. Brown
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Patent number: 6576740Abstract: A polyoxymethylene having enhanced thermal stability and resistance to depolymerization is obtained by using an alkylated melamine compound of formula (1) as a polymerization terminating agent in a polymerization of formaldehyde or a cyclic oligomer thereof and an optional comonomer in the presence of an acid catalyst: wherein, R1 to R6 are each independently H, C1-4 alkyl or CH2OR7; R7 is H, C1-4 alkyl or R8COOR9; R8 is —(CH2)n—, n being an integer of 1 to 4; and R9 is C1-4 alkyl.Type: GrantFiled: January 9, 2002Date of Patent: June 10, 2003Assignee: Korea Engineering Plastics Co., Ltd.Inventors: Chong-Won Chin, Young-Heup Kim, Kyung-Seob Byun
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Publication number: 20030088032Abstract: The present invention provides block copolymers containing at least one block of a poly(heteroaromatic)polymer and at least two blocks of a non-conjugated polymer. The chemically different blocks of the copolymer are covalently bonded to each other in an alternating fashion through an appropriate linkage group. The poly(heteroaromatic) block may exist in its neutral or oxidized form, and when in the oxidized form, it associates with organic or inorganic counter-anions to balance the charge. The poly(heteroaromatic)polymer is an intrinsically conducting polymer (ICP), and when in the oxidized form it is electrically conducting. When the ICP block or blocks of the block copolymer are in the doped form, the block copolymer is electrically conducting. Preferably the conducting block copolymers have conductivities in the range 10−6-103 S/cm. Block copolymers of this invention are soluble or dispersible in water, one or more organic solvents, or in a mixture thereof at a level of at least about 0.1 g/liter.Type: ApplicationFiled: September 3, 2002Publication date: May 8, 2003Inventors: Silvia DeVito Luebben, Brian Elliott, Carolina Wilson
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Publication number: 20030060571Abstract: Monofunctional polyfluorooxetane oligomers and polymers are prepared by the cationic polymerization of fluorooxetane monomers with a monoalcohol. The fluorooxetane oligomers or polymers can be copolymerized with generally cyclic ethers. Alternatively, the polyfluorooxetane oligomer or polymer having a single hydroxyl end group can be functionalized with a variety of compounds so as to yield a functional end group such as an acrylate, a methacrylate, an allylic, an amine, etc., with the functionalized oligomer or polymer being suitable for use in radiation curable or thermal curable coating compositions. These functionalized polymers can be copolymerized and cured to provide improvements in wetting and surface properties that have previously been provided by migratory chemicals such as waxes and oils.Type: ApplicationFiled: March 28, 2002Publication date: March 27, 2003Applicant: OMNOVA Solutions Inc.Inventors: Raymond J. Weinert, Guillermina C. Garcia, Aslam Malik, Roland Carlson, Robert E. Medsker
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Patent number: 6517855Abstract: A method of sterilizing objects as well as the sterilized objects obtained from the method are disclosed. The method involves contacting an object such as a medical device to be reused with polycationic dendrimer under conditions which result in rendering a conformationally altered protein (e.g. a prion) non-infectious. A disinfecting agent or surgical scrub composition which comprises the dendrimers is also disclosed as are gelatin capsules treated with polycationic dendrimers.Type: GrantFiled: September 19, 2001Date of Patent: February 11, 2003Assignee: The Regents of the University of CaliforniaInventors: Stanley B. Prusiner, Surachai Supattapone, Michael R. Scott
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Publication number: 20030027937Abstract: Monofilms containing a vinylcyclohexane-based polymer or a mixture of vinylcyclohexane-based polymers with at least one polar polymer.Type: ApplicationFiled: June 19, 2002Publication date: February 6, 2003Inventors: Dirk Mockel, Volker Wege, Friedrich-Karl Bruder, Konstadinos Douzinas
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Patent number: 6508894Abstract: An energetic and recyclable propellant composition, which is capable of withstanding cold temperature, includes an energetic copolyurethane thermoplastic elastomer. The propellant composition can be used as a gun or rocket propellant, an explosive or in air bag gas generators.Type: GrantFiled: August 4, 2000Date of Patent: January 21, 2003Assignee: Her Majesty the Queen in right of Canada, as represented by the Minister of National DefenceInventors: France Beaupré, Guy Ampleman, Charles Nicole, Jean-Guy Mélançon
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Patent number: 6506873Abstract: The present invention relates to a fibrous material which includes a plurality of polylactide containing fibers. The plurality of polylactide containing fibers can be considered low shrinkage or high shrinkage. The plurality of polylactide containing fibers are considered low shrinkage fibers if they provide a boiling water shrinkage propensity of less than about 20%. The plurality of polylactide containing fibers are considered high shrink fibers if they provide an average fiber boiling water shrinkage propensity of greater than about 10% and a heat of fusion of less than about 25 J/g. The invention additionally relates to the use of an extrusion process to provide low shrinkage fibers and high shrinkage fibers. The invention further relates to the use of these fibers in desirable products.Type: GrantFiled: May 4, 1998Date of Patent: January 14, 2003Assignee: Cargill, IncorporatedInventors: Christopher Michael Ryan, Nancy Uzelac Buehler, Scott Louis Gessner, Andrea Lee Brosch
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Publication number: 20030008979Abstract: A wholly aromatic liquid crystalline polyester resin composition comprising about 97-60 parts by weight of a wholly aromatic polyester resin (A) having melting peak determined by DSC equal to or higher than 310° C.; and about 3-40 parts by weight of a wholly aromatic polyester resin (B) having melting peak determined by DSC equal to or lower than 300° C. is provided. The novel liquid crystalline polyester resin composition of the present invention exhibits an improved melt flowability and can provide a molded article having reflow-soldering heat resistance.Type: ApplicationFiled: February 22, 2002Publication date: January 9, 2003Applicant: KABUSHIKI KAISHA UENO SEIYAKU OYO K.Inventors: Jun-ichi Suenaga, Takamasa Owaki, Masaru Egawa
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Patent number: 6492462Abstract: The rheological properties of a crosslinkable resin system are modified by the presence of a side chain crystalline (SCC) polymer (or a similar crystalline polymer which melts over a narrow temperature range). The polymer dissolves in the curable system at temperatures above the melting point of the crystalline polymer (Tp), but when the system is then cooled to a temperature below Tp, at least partially forms a separate phase in the curable system. Below Tp, this separate phase substantially increases the viscosity of the curable system (i.e. makes it thicker than the same system without the crystalline polymer). This is particularly valuable for sheet molding composites (SMCs) in which the increase in viscosity makes the composites less tacky, and for dry film resists (DFRs). Above Tp, the curable system containing the dissolved crystalline polymer has a viscosity which is substantially less than its viscosity below Tp.Type: GrantFiled: December 19, 2000Date of Patent: December 10, 2002Assignee: Landec CorporationInventors: Steven P. Bitler, David D. Taft, Ray F. Stewart
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Publication number: 20020161135Abstract: The invention pertains to a coating composition comprising a first compound comprising at least one bicyclo- or spiro-orthoester group and a second compound comprising at least two hydroxyl-reactive groups. The invention also comprises a process for curing the present coating composition. More particularly, the latent hydroxyl groups of the bicyclo- or spiro-orthoester groups have to be deblocked and reacted with the hydroxyl-reactive groups of the second compound if the present coating composition is to be cured. Further, a process for making bicyclo-orthoester compounds from the corresponding oxetane compound is described, as are polymers comprising at least one bicyclo- or spiro-orthoester group.Type: ApplicationFiled: August 22, 2001Publication date: October 31, 2002Inventors: Keimpe Jan van den Berg, Klaus Hobel, Huig Klinkenberg, Arie Noomen, Josephus Christiaan van Oorschot
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Publication number: 20020156200Abstract: Monofunctional polyfluorooxetane oligomers and polymers Zare prepared by the cationic polymerization of fluorooxetane monomers with a monoalcohol. The fluorooxetane oligomers or polymers can be copolymerized with generally cyclic ethers. Alternatively, the poly-fluorooxetane oligomer or polymer having a single hydroxyl end group can be functionalized with a variety of compounds so as to yield a functional end group such as an acrylate, a methacrylate, an allylic, an amine, etc., with the functionalized oligomer or polymer being suitable for use in radiation curable or thermal curable coating compositions. These functionalized polymers can be copolymerized and cured to provide improvements in wetting and surface properties that have previously been provided by migratory chemicals such as waxes and oils.Type: ApplicationFiled: March 28, 2002Publication date: October 24, 2002Applicant: OMNOVA Solutions Inc.Inventors: Raymond J. Weinert, Guillermina C. Garcia, Aslam Malik, Roland Carlson, Robert E. Medsker
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Publication number: 20020143112Abstract: Monofunctional polyfluorooxetane oligomers and polymers are prepared by the cationic polymerization of fluorooxetane monomers with a monoalcohol. The fluorooxetane oligomers or polymers can be copolymerized with generally cyclic ethers. Alternatively, the polyfluorooxetane oligomer or polymer having a single hydroxyl end group can be functionalized with a variety of compounds so as to yield a functional end group such as an acrylate, a methacrylate, an allylic, an amine, etc., with the functionalized oligomer or polymer being suitable for use in radiation curable or thermal curable coating compositions. These functionalized polymers can be copolymerized and cured to provide improvements in wetting and surface properties that have previously been provided by migratory chemicals such as waxes and oils.Type: ApplicationFiled: March 28, 2002Publication date: October 3, 2002Applicant: OMNOVA Solutions Inc.Inventors: Raymond J. Weinert, Guillermina C. Garcia, Aslam Malik, Roland Carlson, Robert E. Medsker
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Publication number: 20020137853Abstract: Monofunctional polyfluorooxetane oligomers and polymers are prepared by the cationic polymerization of fluorooxetane monomers with a monoalcohol. The fluorooxetane oligomers or polymers can be copolymerized with generally cyclic ethers. Alternatively, the polyfluorooxetane oligomer or polymer having a single hydroxyl end group can be functionalized with a variety of compounds so as to yield a functional end group such as an acrylate, a methacrylate, an allylic, an amine, etc., with the functionalized oligomer or polymer being suitable for use in radiation curable or thermal curable coating compositions. These functionalized polymers can be copolymerized and cured to provide improvements in wetting and surface properties that have previously been provided by migratory chemicals such as waxes and oils.Type: ApplicationFiled: March 27, 2002Publication date: September 26, 2002Applicant: OMNOVA Solutions Inc.Inventors: Raymond J. Weinert, Guillermina C. Garcia, Aslam Malik, Roland Carlson, Robert E. Medsker
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Patent number: 6423788Abstract: A curable coating composition is described comprising (A) a carbamate- or urea-functional compound that is the reaction product of a mixture comprising (1) a compound comprising a carbamate or urea group or a group that can be converted to carbamate or urea, and a hydroxyl functional group that is the reaction product of (a) a compound comprising a carbamate or urea group or a group that can be converted to a carbamate or urea group, and an active hydrogen group that is reactive with a lactone ring or a hydroxy carboxylic acid, and (b) a lactone or a hydroxy carboxylic acid, and (2) a compound that is reactive with hydroxyl groups on a plurality of molecules of compound (A)(1), but that is not reactive with the carbamate or urea groups on compound (A)(1), (B) a compound comprising a plurality of groups that are reactive with carbamate or urea.Type: GrantFiled: October 6, 1995Date of Patent: July 23, 2002Assignee: BASF CorporationInventors: Brian D. Bammel, John D. McGee, Walter H. Ohrbom, Todd A. Seaver, Paul J. Harris, John W. Rehfuss
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Patent number: 6420452Abstract: A polyurethane composition comprising a chain extender including a silicon-containing diol of the formula (I): wherein R1, R2, R3, R4, R5, and R6 are the same or different and selected from an optionally substituted straight chain, branched or cyclic, saturated or unsaturated hydrocarbon radical; R7 is a divalent linking group or an optionally substituted straight chain, branched or cyclic, saturated or unsaturated hydrocarbon radical; and n is 0 or greater, preferably 2 or less.Type: GrantFiled: January 14, 2000Date of Patent: July 16, 2002Assignee: Aortech Biomaterials PTY LTDInventors: Pathiraja A. Gunatillake, Gordon Francis Meijs, Raju Adhikari
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Patent number: 6403760Abstract: Monofunctional polyfluorooxetane oligomers and polymers are prepared by the cationic polymerization of fluorooxetane monomers with a monoalcohol. The fluorooxetane oligomers or polymers can be copolymerized with generally cyclic ethers. Alternatively, the polyfluorooxetane oligomer or polymer having a single hydroxyl end group can be functionalized with a variety of compounds so as to yield a functional end group such as an acrylate, a methacrylate, an allylic, an amine, etc., with the functionalized oligomer or polymer being suitable for use in radiation curable or thermal curable coating compositions. These functionalized polymers can be copolymerized and cured to provide improvements in wetting and surface properties that have previously been provided by migratory chemicals such as waxes and oils.Type: GrantFiled: December 28, 1999Date of Patent: June 11, 2002Assignee: OMNOVA Solutions Inc.Inventors: Raymond J. Weinert, Guillermina C. Garcia, Aslam Malik, Roland Carlson, Robert E. Medsker
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Publication number: 20020010312Abstract: This invention is directed to a coating composition used for original equipment manufacturing or refinishing uses in the automotive industry, which coating composition utilizes an acrylic polymer which contains substituted or unsubstituted exomethylene lactones or lactams as a comonomer.Type: ApplicationFiled: January 25, 2001Publication date: January 24, 2002Inventors: Charles J. Brandenburg, Randal D. King, Larry G. Oien, Peter W. Uhlianuk
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Patent number: 6339129Abstract: Curable coating compositions for powder coatings are disclosed which are composed of a cyclic carbonate functional polymer and a carbamate salt of a multifunctional amine.Type: GrantFiled: September 30, 1999Date of Patent: January 15, 2002Assignee: Eastman Chemical CompanyInventor: Dean Charles Webster
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Patent number: 6337384Abstract: A method of making a thermally-removable epoxy by mixing a bis(maleimide) compound to a monomeric furan compound containing an oxirane group to form a di-epoxy mixture and then adding a curing agent at temperatures from approximately room temperature to less than approximately 90° C. to form a thermally-removable epoxy. The thermally-removable epoxy can be easily removed within approximately an hour by heating to temperatures greater than approximately 90° C. in a polar solvent. The epoxy material can be used in protecting electronic components that may require subsequent removal of the solid material for component repair, modification or quality control.Type: GrantFiled: January 18, 2000Date of Patent: January 8, 2002Assignee: Sandia CorporationInventors: Douglas A. Loy, David R. Wheeler, Edward M. Russick, James R. McElhanon, Randall S. Saunders
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Patent number: 6316505Abstract: Block copolymers containing a fluorinated hydrocarbon unit, a hydrocarbon unit, and a poly(oxyethylene) unit are useful in fluid formulations of pharmaceutical agents. A typical embodiment is: C11H23—CONHC2H4NHCO—C8F16—CONHC2H4NHCOO—(C2H4O)34—H.Type: GrantFiled: August 5, 1999Date of Patent: November 13, 2001Assignee: Supratek Pharma, Inc.Inventors: Alexander V. Kabanov, Serguei V. Vinogradov
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Publication number: 20010034417Abstract: Molecular weight-enlarged, homogeneously soluble ligands are provided that are especially useful for hydrogenation catalysts, wherein the ligands contain homochiral active centers of bis(3,4-diarylphosphinyl)pyrrolidines, and their use in producing cataylsts for enantioselective reactions, as well as the catalysts thus produced.Type: ApplicationFiled: January 24, 2001Publication date: October 25, 2001Applicant: Degussa-Huels AktiengesellschaftInventors: Olaf Burkhardt, Jens Woeltinger, Andreas Bommarius, Juan Jose Almena Perea, Hans Henniges, Karlheinz Drauz, Andreas Karau, Jean-Louis Philippe, Hans-Peter Krimmer, Gunther Oehme
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Patent number: 6297329Abstract: The invention pertains to a coating composition comprising a first compound comprising at least one bicyclo- or spiro-orthoester group and a second compound comprising at least two hydroxyl-reactive groups. The invention also comprises a process for curing the present coating composition. More particularly, the latent hydroxyl groups of the bicyclo- or spiro-orthoester groups have to be deblocked and reacted with the hydroxyl-reactive groups of the second compound if the present coating composition is to be cured. Further, a process for making bicyclo-orthoester compounds from the corresponding oxetane compound is described, as are polymers comprising at least one bicyclo- or spiro-orthoester group.Type: GrantFiled: February 21, 1997Date of Patent: October 2, 2001Assignee: Akzo Nobel NVInventors: Keimpe Jan van den Berg, Klaus Hobel, Huig Klinkenberg, Arie Noomen, Josephus Christiaan van Oorschot
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Patent number: 6201071Abstract: A solid polymer electrolyte containing a polyether copolymer having a weight-average molecular weight of 104 to 107 which may optionally be cross-linked and which contains (A) 1 to 99% by mol of a repeating unit derived from a monomer represented by the formula (I): wherein R1 represents a divalent organic group, (B) 99 to 1% by mol of a repeating unit derived from ethylene oxide, and (C) 0 to 15% by mol of a repeating unit derived from a monomer having one epoxy group and at least one reactive functional group, an electrolyte salt compound, and a plasticizer has an excellent ionic conductivity.Type: GrantFiled: April 19, 1999Date of Patent: March 13, 2001Assignee: Daiso Co., Ltd.Inventors: Katsuhito Miura, Masanori Yanagida, Kazumasa Hinoue, Yoshiro Furukawa
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Patent number: 6187897Abstract: A vinyl-group-containing dendrimer useful in coating and printing and is curable by any one of conventional triggers such as heating, ultraviolet light, infrared light, electron beams and &ggr; rays, the composition comprising a vinyl-group-containing dendrimer (A) comprising a core portion, branching portions, branches and at least 4 terminal portions and having a vinyl group as a terminal portion and a long-chain group and a curable unsaturated-group-containing compound (B), and the composition comprising a vinyl-group-containing dendrimer (A) obtained by reacting a polyfunctional compound (a) having at least three active-hydrogen-containing groups in a terminal per molecule and having at least five active hydrogen atoms per molecule with a long-chain-group-containing compound (b) having a functional group reactive with an active hydrogen atom so as to leave part of the active hydrogen atoms, thereby obtaining a long-chain-group-containing multi-branched compound (X), and reacting the long-chain-containingType: GrantFiled: July 24, 1998Date of Patent: February 13, 2001Assignee: Toyo Ink Manufacturing Co., Ltd.Inventors: Miki Kawashima, Minoru Nakamura, Hiroaki Tanaka
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Patent number: 6150429Abstract: The present invention provides polyester/vinyl dioxolane based coating compositions containing no or essentially no volatile organic components. Oligomers for forming the coating compositions of the present invention are vinyl dioxolane end-capped polyester oligomers.Type: GrantFiled: November 2, 1999Date of Patent: November 21, 2000Assignee: Foster-Miller, Inc.Inventors: Robert F. Kovar, Nese Orbey, Nelson Landrau, William E. Dorogy, Jr., Paul Osenar
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Patent number: 6147183Abstract: Amphoteric amine based polymers having a net cationic charge, wherein the polymers are obtained by reacting (a) at least one amine with (b) at least one crosslinking agent, in a molar ratio of (a):(b) of from 2:1 to 1:1.5 and (c) reacting the condensation products of (a) and (b), which are free of anionic groups, with an anionic group containing an alkylating agent or oxidizing their tertiary nitrogen atoms to N-oxides in such an amount that the resulting polymers still have a net cationic charge, and a process for the production of amphoteric amine based polymers having anet cationic charge by reacting the compounds of (a), (b) and (c) the amphoteric amine based polymers may be used as additives in detergents.Type: GrantFiled: September 15, 1998Date of Patent: November 14, 2000Assignee: BASF AktiengesellschaftInventors: Soren Hildebrandt, Elisabeth Kappes, Dieter Boeckh, Rajan Panandiker, Sherri Randall, Eugene Paul Gosselink, William Conrad Wertz
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Patent number: 6133211Abstract: Block copolyethers having general formula (I):RX--(CH.sub.2 --CHR.sub.1 --O--).sub.x --(--CH.sub.2 CHR.sub.2 --O--).sub.y --(--CH.sub.2 --CHR.sub.3 --O--).sub.z --R.sub.4wherein:R is selected from H, alkyl, alkylaryl;X is selected from O, S and N;R.sub.1, R.sub.2 and R.sub.3 are selected from H, CH.sub.3, and C.sub.2 -C.sub.10 alkyl radicals;R.sub.4 is selected from H, alkyl, acyl;x,y,z represent the number of ether units and are integers which have such values that the molecular weight of the compound having general formula (I) is between 600 and 4000, and in addition (x+z)/y is between 1.5 and 5.0; with the proviso that:a) either R.sub.1 and R.sub.3 are selected from H and CH.sub.3, in which case R.sub.2 is selected from C.sub.2 to C.sub.10 alkyl radicals,b) or R.sub.1 and R.sub.3 are selected from C.sub.2 -C.sub.10 alkyl radicals, in which case R.sub.2 is selected from H and CH.sub.3.Type: GrantFiled: October 30, 1997Date of Patent: October 17, 2000Assignee: Agip Petroli S.p.A.Inventors: Sandra Cobianco, Alessandro Lezzi, Alberto Forlini, Emilio Gatti
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Patent number: 6103029Abstract: Polyethers containing pendant azide groups are cured without a catalyst by yclo-addition with diacetylenes to form triazole cross-linked, energetic binders having improved mechanical properties and stability. The polyethers typically have three hydroxy-terminated chains each of about 5000 to about 50,000 daltons. Ideally, only one azide group per chain reacts by cyclo-addition since the diacetylene is added in a proportion of about one molecule to each two polyether chains. Repeating units of glycidal azide, azidomethylmethyloxetane, bis-azidomethyloxetane/nitratomethylmethyloxetane, and bis-azidomethyloxetane/azidomethylmethyloxetane are believed effective as polyethers when used with the diethynlbenzenes 1,4-bis(ethynl)benzene, 1,4-bis(ethynlcarbonyl)benzene, and 1,3-bis(cyanoethynl)benzene. The polyethers may be further cross-liked at the hydroxyl terminations by urethane bonds.Type: GrantFiled: June 23, 1997Date of Patent: August 15, 2000Assignee: The United States of America as represented by the Secretary of the NavyInventor: Russell Reed, Jr.
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Patent number: 6099759Abstract: The present invention has for subjects, novel benzopyran derivatives, substituted in position 2 with an adamantyl group as well as the compositions and (co)polymer matrices containing such derivatives. Said derivatives possess interesting photochromic properties.Type: GrantFiled: December 21, 1998Date of Patent: August 8, 2000Assignee: Corning IncorporatedInventor: You-Ping Chan
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Patent number: 6063286Abstract: Process for preparing fine-particle, water-insoluble polymers of aziridines by polymerizing aziridines, preferably ethylenimine, in the presence of crosslinkers which contain at least two functional groups, and in at least one ether, and also modified, water-insoluble polymers of aziridines which can be obtained by reacting fine-particle, water-insoluble, crosslinked polymers of aziridines, in aqueous medium, with carbon disulfide or formaldehyde and a nucleophilic agent from the group consisting of alkali metal cyanides, primary amines, secondary amines, alkali metal sulfites and alkali metal phosphites, and use of the modified and non-modified fine-particle, water-insoluble polymers for immobilizing active compounds, as absorbents for aldehydes, ketones and acids, and also for removing heavy metal ions from wastewaters.Type: GrantFiled: October 22, 1998Date of Patent: May 16, 2000Assignee: BASF AktiengesellschaftInventors: Ulrich Steuerle, Wolfgang Reuther, Hubert Meixner, Michael Ehle, Thomas Greindl, Rainer Betz
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Patent number: 6054492Abstract: Block copolymers containing a fluorinated hydrocarbon unit, a hydrocarbon unit, and a poly(oxyethylene) unit are useful in fluid formulations of pharmaceutical agents. A typical embodiment is:C.sub.11 H.sub.23 --CONHC.sub.2 H.sub.4 NHCO--C.sub.8 F.sub.16 --CONHC.sub.2 H.sub.4 NHCOO--(C.sub.2 H.sub.4 O).sub.34 --H.Type: GrantFiled: September 9, 1997Date of Patent: April 25, 2000Assignee: Supratek Pharma Inc.Inventors: Alexander V. Kabanov, Serguei V. Vinogradov
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Patent number: 6020451Abstract: Thus, there is provided according to the present invention polyol compositions comprising(A) a polytetramethylene ether glycol, and(B) a difunctional active hydrogen compound-initiated polyoxyalkylene polyether polyol having a degree of unsaturation of not greater than 0.04 milliequivalents per gram of said polyether polyol.Type: GrantFiled: July 30, 1997Date of Patent: February 1, 2000Assignee: BASF CorporationInventors: Thomas L. Fishback, Curtis J. Reichel, Thomas B. Lee
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Patent number: 6020457Abstract: Dendritic polymers containing disulfide functional groups which are essentially inert under non-reducing conditions, but which form sulfhydryl groups upon being subjected to a reducing agent are prepared by synthesizing dendritic polymers having a core with a disulfide linkage or by reacting a dendritic polymer with a molecule containing a disulfide linkage and reactive terminal groups. In one aspect of the invention, dendritic polymers having a single disulfide functional group at the core are provided. The single disulfide group at the core can be reduced to form two sulfhydryl groups to which other molecules, such as proteins, oligonucleotides, peptides, hormones, other dendritic polymers, non-dendritic polymers, etc., can be bound.Type: GrantFiled: September 30, 1997Date of Patent: February 1, 2000Assignee: Dendritech Inc.Inventors: June W. Klimash, Herbert M. Brothers, II, Douglas R. Swanson, Rui Yin, Ralph Spindler, Donald A. Tomalia, Yong Hsu, Roberta C. Cheng
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Patent number: 5998574Abstract: Thus, there is provided according to the present invention polyol compositions comprising(A) a polytetramethylene ether glycol, and(B) a difunctional active hydrogen compound-initiated polyoxyalkylene polyether polyol having a degree of unsaturation of not greater than 0.04 milliequivalents per gram of said polyether polyol.Type: GrantFiled: July 10, 1996Date of Patent: December 7, 1999Assignee: BASF CorporationInventors: Thomas L. Fishback, Curtis J. Reichel, Thomas B. Lee
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Patent number: 5994495Abstract: A new class of branched dendrimeric macromolecules, is described essentially consisting of a polyvalent central nucleus and a series of polyoxaalkylene "dendra". Such molecules are characterized by the presence of at least one branch, attached either directly to the "core" or to a "dendron", which does not participate in the growth and which therefore differs from all the other functions of the macromolecule.Type: GrantFiled: May 11, 1998Date of Patent: November 30, 1999Assignee: Dibra S.p.A.Inventors: Luigia Gozzini, Monica Muttoni
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Patent number: 5891968Abstract: A self-doped conducting polymer having along its backbone a .pi.-electron conjugated system which comprises a plurality of monomer units, between about 0.01 and 100 mole % of the units having covalently linked thereto at least one Bronsted acid group. The conductive zwitterionic polymer is also provided. as are monomers useful in the preparation of the polymer and electrodes comprising the polymer.Type: GrantFiled: June 7, 1995Date of Patent: April 6, 1999Assignee: The Regents of University of CaliforniaInventors: Fred Wudl, Alan Heeger
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Patent number: 5859146Abstract: Thermoplastic molding materials containA) from 10 to 99.5% by weight of a thermoplastic polymer selected from the group consisting of the polyoxymethylenes, polyolefins, polyesters, polycarbonates, polystyrene, ABS, ASA, SAN, polyamides or poly(meth)acrylates or mixtures thereof,B) from 0.5 to 80% by weight of a thermoplastic polyurethane having a melting point of <200.degree. C.,C) from 0 to 50% by weight of a fibrous or particulate filler or a mixture thereof andD) from 0 to 30% by weight of conventional additives and processing assistants,the percentages by weight of the components A) to D) summing to 100%.Type: GrantFiled: July 31, 1996Date of Patent: January 12, 1999Assignee: BASF AktiengesellschaftInventors: Sabine Kielhorn-Bayer, Herbert Stutz, Dietrich Sanger, Friedhelm Lehrich, Peter Rieger
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Patent number: 5854385Abstract: A coating composition is disclosed that includes:(A) a multi-functional compound having(1) at least one carbamate or urea functional group,(2) at least one other functional group which may or may not be carbamate or urea, and(3) at least one hydrogen bond acceptor group that is not also a hydrogen bond donor group, with the proviso that said multi-functional compound is other than an acrylic polymer or oligomer having carbamate functional or urea groups appended to the acrylic backbone through acrylic ester side chains, a polyester polymer or oligomer that is the polycondensation reaction product of a polyol and a polyacid component, or a polyurethane that is the reaction product of a polyisocyanate component and a polyester polyol component, and(B) a curing agent comprising a plurality of groups that are reactive with the functional groups on compound (A).Type: GrantFiled: August 15, 1996Date of Patent: December 29, 1998Assignee: BASF CorporationInventors: John D. McGee, Brian D. Bammel, Todd A. Seaver, Walter H. Ohrbom, John W. Rehfuss, Gregory G. Menovcik, Paul J. Harris
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Patent number: 5852139Abstract: Polymer mixtures which comprise at least one thermoplastic and at least one oxidized polyarylene sulfide show particularly good tribological behaviour. The thermoplastics of the mixture are, for example, polyacetal, polyester, liquid-crystalline polymer, polyaryl ether ketone, polysulfone, polyether sulfone, polyphenylene sulfide or polyether imide. The oxidized polyarylene sulfide is preferably polyphenylene sulfone. The polymer mixtures are used for producing gear wheels, gear racks, bearings, chains, pulleys, rollers, wheels or gasket materials.Type: GrantFiled: April 8, 1997Date of Patent: December 22, 1998Assignee: Ticona GmbHInventor: Di Helmut Scheckenbach
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Patent number: 5830948Abstract: Polyoxazolines having the structural formula: ##STR1## wherein R is phenylene or alkylene containing 2 to 18 carbon atoms, R.sup.2 is C.sub.1-4 alkyl and R.sub.1 is selected from the group consisting of C.sub.1-12 alkyl, vinyl, isopropylidene, pentafluoroethyl, phenyl, hydroxyphenyl which is optionally interrupted by up to 20 ethylene oxide groups, C.sub.1-2 -alkoxyphenyl which is optionally interrupted by up to 20 ethylene oxide groups and .paren open-st.CH.sub.2 CH.sub.2 --O.paren close-st..sub.r CH.sub.3 in which r ranges from 1-20, X is NH.sub.2 or OH, n ranges from 2 to 50 and m ranges from 0 to 50, wherein R.sub.1 is hydroxyphenyl optionally interrupted by up to 20 ethylene oxide groups only when X is NH.sub.2, are polymerizable to form hyperbranched polymers which have a number average molecular weight ranging from 5,000 to 150,000, a weight average molecular weight ranging from 5,500 to 5,000,000 and a polydispersity ranging from 1.Type: GrantFiled: February 28, 1997Date of Patent: November 3, 1998Assignee: Cornell Research Foundation, Inc.Inventors: Jean J.M. Frechet, Koji Yui
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Patent number: 5807971Abstract: A new class of branched dendrimeric macromolecules, is described essentially consisting of a polyvalent central nucleus and a series of polyoxaalkylene "dendra". Such molecules are characterized by the presense of at least one branch, attached either directly to the "core" or to a "dendron", which does not participate in the growth and which therefor differs from all the other functions of the macromolecule.Type: GrantFiled: September 13, 1996Date of Patent: September 15, 1998Assignee: Dibra S.p.A.Inventors: Luigia Gozzini, Monica Muttoni
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Patent number: 5786308Abstract: A new group of polymer flow controllers for powder resin lacquer is provided. The polymer flow controllers contain groups ##STR1## wherein n and m are numbers from 0 to 1000 with the sum of n+m=2-1000 and R.sub.1 and R.sub.2 are independently hydrogen, an optionally hydroxy substituted hydrocarbon group containing 1 to 36 carbon atoms aryl and aralkyl optionally substituted in the aromatic nucleus, or R.sub.3 --(--O--C.sub.2 H.sub.4 --)--.sub.p O--CH.sub.2 -- wherein R.sub.3 is an alkyl or alkenyl group containing 1 to 18 carbon atoms and p is a number of 1 to 10.Type: GrantFiled: August 27, 1996Date of Patent: July 28, 1998Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Ulrich Eicken, Brigitte Hase, Herbert Fischer, Paul Birnbrich, Heinz-Guenter Schulte, Wolfgang Gress, Harald Frommelius
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Patent number: 5773527Abstract: This invention discloses non-crosslinked, poly-branched polymers having a comb-burst configuration and a process for preparing such polymers.Type: GrantFiled: January 20, 1995Date of Patent: June 30, 1998Assignee: Dendritech, Inc.Inventors: Donald A. Tomalia, David M. Hedstrand, Rui Yin
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Patent number: 5770673Abstract: The present invention relates to non-sagging, light stable polyurethane compositions. These non-sagging, light stable polyurethane compositions are the reaction product of a liquid hexamethylene diisocyanate adduct with a mixture of an organic compound containing hydroxyl groups, an aliphatic and/or alicyclic diamine, and an alkanolamine. It also relates to a process for producing these non-sagging, light stable compositions, and their use as seam sealants.Type: GrantFiled: April 10, 1996Date of Patent: June 23, 1998Assignee: Bayer CorporationInventors: Peter H. Markusch, Robert L. Cline, A. M. Sarpeshkar