Chemical Treating Agent Contains Elemental Oxygen Or Oxygen-containing Compound Patents (Class 525/383)
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Patent number: 7728092Abstract: The present invention relates to anaerobically curable compositions based on (meth)acrylate-functionalized poly(acrylate) polymers.Type: GrantFiled: April 13, 2006Date of Patent: June 1, 2010Assignee: Henkel CorporationInventors: Anthony F. Jacobine, Joel D. Schall, John G. Woods
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Patent number: 7728079Abstract: The present invention relates to a process for producing postcrosslinked water-absorbing polymeric formations, comprising the steps of contacting water-absorbing polymeric formations P1 obtained by polymerization of ethylenically unsaturated acid-functional monomers or salts thereof in the presence of a crosslinker with a fluid F1 comprising a postcrosslinker, heating the water-absorbing polymeric formations in contact with the fluid F1 to a temperature in a range from 40 to 300° C. to obtain postcrosslinked water-absorbing polymeric formations P2, the water-absorbing polymeric formations P1 having a thermal stability, as determined in accordance with the test method described herein, of less than 3.0%.Type: GrantFiled: February 24, 2006Date of Patent: June 1, 2010Assignee: Evonik Degussa GmbHInventors: Jörg Harren, Jörg Issberner, Mirko Walden, Rainer Teni, Franck Furno, Peter Werle, Hans-Peter Krimmer
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Publication number: 20100130695Abstract: The present invention relates to a polymer composition with an increased rate of oxygen-uptake by the presence of an oxidation catalyst. The invention further relates to a process to increase the rate of oxygen-uptake by a polymer composition. The invention also relates to a process to increase the oxo-biodegradability of a polymer composition and to the use of such a composition for the preparation of a product having a controlled lifetime. The invention further relates to a process to increase the rate of oxygen-scavenging in a composition containing a carbon-containing polymer, the composition obtained by this method and its use in the preparation of an oxygen-scavenging product. The present invention further relates to objects containing an oxygen scavenging layer containing such a composition.Type: ApplicationFiled: July 4, 2007Publication date: May 27, 2010Applicant: DSM IP ASSETS B.V.Inventors: Pieter Gijsman, Johan Franz Gradus Antonius Jansen
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Patent number: 7705092Abstract: The present invention has its object to provide a process for producing a vinyl polymer which can provide a vinyl polymer in such form that a polymerization catalyst is effectively removed from that. The present invention relates to a process for producing a vinyl polymer wherein a vinyl polymer at the time of completion of the polymerization is treated with oxygen in the presence of a polar solvent. More preferably, the present invention relates to a process for bringing a polymer added with a polar solvent having a relative dielectric constant at 20° C. of not lower than 10 into contact with mixed gases of oxygen and an inert gas such as nitrogen with an oxygen concentration below the explosion limit oxygen concentration of this solvent as in the state of occurrence as a pure component.Type: GrantFiled: March 3, 2006Date of Patent: April 27, 2010Assignee: Kaneka CorporationInventors: Yousuke Asai, Nao Fujita
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Patent number: 7705091Abstract: The present invention provides a method of increasing the absorption rate of peroxides into polymer particles used to fabricate electrical cable insulation. The method includes contacting the polymer particles with a peroxide compound and an additive under physical mixing conditions at a temperature that is above the melting point of the peroxide compound but below the softening point of the polymer particles for a period of time sufficient to allow the peroxide compound to absorb into the polymer particles. Preferably, the additive is squalane or another branched, hydrocarbon oil that substantially increases the rate at which the peroxide compound is absorbed into the polymer particles and improves the peroxide cure.Type: GrantFiled: November 21, 2006Date of Patent: April 27, 2010Assignee: Arkema Inc.Inventor: Peter R. Dluzneski
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Patent number: 7700695Abstract: A modified butyl rubber composition comprising a butyl rubber modified by mixing, under heating, (a) a compound having a nitroxide-free radical in the molecule thereof, which is stable at an ordinary temperature even in the presence of oxygen, (b) a radical initiator, and (c) a bi- or more-functional radical polymerizable monomer and further by compounded with (d) a bi- or more-functional radical polymerizable monomer, which is different from the ingredient (c).Type: GrantFiled: September 29, 2008Date of Patent: April 20, 2010Assignee: The Yokohama Rubber Co., Ltd.Inventors: Makoto Ashiura, Tetsuji Kawazura
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Patent number: 7671139Abstract: A functionalized polymer defined by the formula where ? is a polymer chain, R10 is a divalent organic group, and ? is a hydroxyl group, an alkoxyl group, or an amine group, where the amine group can be represented by the formula —NR2, where at least one R is a monovalent organic group and where the second R is hydrogen or a monovalent organic group, and where the alkoxyl group can be represented by the formula —OR?, where R? is a monovalent organic group.Type: GrantFiled: June 17, 2005Date of Patent: March 2, 2010Assignee: Bridgestone CorporationInventors: James Oziomek, James Hall, Thomas Antkowiak
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Publication number: 20100036060Abstract: 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: October 14, 2009Publication date: February 11, 2010Applicant: 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: 7652104Abstract: An epoxy resin composition includes (A) an epoxy resin, (B) a curing agent, and (C) an epoxidized polyisoprene (c-1) that contains an epoxy group at 0.15 to 2 meq/g in the molecule and has a number-average molecular weight of 15000 to 200000 or an epoxidized polybutadiene (c-2) that contains an epoxy group at 0.15 to 2 meq/g in the molecule and has a number-average molecular weight of 20000 to 200000. The epoxy resin composition has high heat resistance and reduced internal stress, and can be suitably used in applications such as electronic part materials represented by semiconductor encapsulating materials and adhesives.Type: GrantFiled: December 25, 2003Date of Patent: January 26, 2010Assignee: Kuraray Co., Ltd.Inventors: Kei Hirata, Koji Kitayama, Mizuho Maeda
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Patent number: 7642322Abstract: A functionalized polymer prepared by a process comprising the steps of preparing a pseudo-living polymer by polymerizing conjugated monomer with a lanthanide-based catalyst, and reacting the pseudo-living polymer with a functionalizing agent defined by the formula (I) A-R1-Z??(I) where R1 is a divalent bond or divalent organic group comprising from 0 to about 20 carbon atoms, A is a substituent that will undergo an addition reaction with a pseudo-living polymer, and Z is a substituent that will react or interact with silica or carbon black reinforcing fillers, with the proviso that A, R1, and Z are substituents that will not protonate a pseudo-living polymer.Type: GrantFiled: August 31, 2005Date of Patent: January 5, 2010Assignee: Bridgestone CorporationInventors: Yoichi Ozawa, H. Jerrold Miller, Koji Masaki, Koichi Morita, Tatsuo Fujimaki, Tetsuya Omura, Takuo Sone, Iwakazu Hattori
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Patent number: 7632895Abstract: A curable resin composition includes (A) a cationically polymerizable-compound, (B) a cationic photopolymerization initiator, and (C) an epoxidized polyisoprene containing an epoxy group at 0.15 to 2.5 meq/g in the molecule and having a number-average molecular weight of 15000 to 200000. The curable resin composition shows excellent elongation properties and high break elongation even in a cured state and can give a cured product having superior compatibility, transparency, flexibility and waterproofness. Accordingly, the composition is suitable for use as adhesives, coating agents, encapsulating materials, inks, sealing materials and the like.Type: GrantFiled: February 17, 2004Date of Patent: December 15, 2009Assignee: Kuraray Co., Ltd.Inventors: Kei Hirata, Koji Kitayama, Mizuho Maeda
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Patent number: 7625989Abstract: Processes for making temporary wet strength additives, more particularly, processes for oxidizing a homo-crosslinking monomeric unit present in a polymer having a homo-crosslinking monomeric unit and a cationic monomeric unit to produce a temporary wet strength additive are provided.Type: GrantFiled: June 21, 2007Date of Patent: December 1, 2009Assignee: The Procter & Gamble CompanyInventors: Robert Lee Barcus, Khosrow Parviz Mohammadi
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Patent number: 7622531Abstract: The present invention relates to a powder paint composition comprising at least (a) a thermosetting polymer having functional groups capable of reacting with ?-hydroxyalkylamide units (b) a compound comprising ?-hydroxyalkylamide units and (c) a deceleration agent, capable of reversibly blocking the functional groups of polymer (a). The deceleration agent is present in an amount sufficient to block at least 9% of the total amount of functional groups of polymer (a). The present invention relates also to the use of a specific amine compound as a deceleration agent in a powder paint composition.Type: GrantFiled: June 10, 2004Date of Patent: November 24, 2009Assignee: DSM IP Assets B.V.Inventors: Antonia Urmanova, Eimbert Gerrit Belder, Jurjen Bolks, Coenraad Maarten Gehrels
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Patent number: 7615522Abstract: The present invention relates to a block copolymer prepared by ATRP, wherein the polymer chain terminal group is structurally modified with the functionally effective group of a lubricant or polymer additive selected from the group consisting of antioxidants, metal deactivators, antiwear and extreme pressure additives and corrosion inhibitors. The invention also relates to a composition comprising the structurally modified block copolymer and a composition of matter subject to oxidative, thermal or light induced degradation, such as lubricants or polymers.Type: GrantFiled: April 29, 2003Date of Patent: November 10, 2009Assignee: Ciba Specialty Chemicals CorporationInventors: Hugo Camenzind, Paul Dubs, Peter Hänggi, Roger Martin, Andreas Mühlebach, François Rime
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Patent number: 7612147Abstract: This invention discloses a process for synthesizing a dendrimer of a rubbery polymer comprising: (a) reacting a lithium terminated rubbery polymer with a halogenated silicon containing compound to produce a polymer which is terminated with halogenated silicon moieties, wherein the halogenated silicon contain compound has at least four halogen atoms which are bonded directly to silicon atoms, wherein the ratio of the lithium terminated rubbery polymer to halogen atoms in the halogenated silicon containing compound is within the range of 2:n to (n?1):n, wherein n represents the number of halogen atoms that are bonded directly to silicon atoms in the halogenated silicon containing compound, wherein the halogenated silicon containing compound contains at least three halogen atoms which are bonded directly to a silicon atom; (b) reacting the polymer which is terminated with halogenated silicon moieties with a molar excess of a tertiary alcohol to produce a polymer which is terminated with hydroxy silyl moieties; aType: GrantFiled: July 7, 2005Date of Patent: November 3, 2009Assignee: The Goodyear Tire & Rubber CompanyInventors: Adel Farhan Halasa, Wen-Liang Hsu, Chad Aaron Jasiunas
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Patent number: 7608670Abstract: An improved curable formaldehyde-free binding composition is provided. Such curable composition comprises the reaction product of a polyanhydride and a polyol crosslinker and a lower molecular weight anhydride. Initially, the polyanhydride is modified through reaction with a polyol (e.g., a glycol or an alkanolamine) and subsequently is grafted with the lower molecular weight anhydride (e.g., maleic anhydride) to form a water-soluble or water-dispersible curable reaction product. The composition is well suited for binding fibrous materials (e.g., a mat of glass fibers) or for bonding together non-fibrous materials. The binder composition displays an advantageous viscosity so as to facilitate a flowable application with ease combined with an adequately high molecular weight to satisfactorily undergo service as a binder following curing even when harsh environmental conditions (e.g.Type: GrantFiled: November 20, 2006Date of Patent: October 27, 2009Assignee: Johns ManvilleInventor: Kiarash Alavi Shooshtari
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Patent number: 7598322Abstract: A tire component comprising a vulcanized rubber deriving from a functionalized polymer defined by the formula I where ? is a polymer chain, B is a boron atom, R1 is a bond or a divalent organic group, and each ? is independently selected from alkoxy groups (—OR), thioalkoxy groups (—SR), amino groups (—NR2), or phosphino groups (—PR2), where each R is independently selected from monovalent organic groups or two R groups form a divalent organic group, which forms a cyclic structure.Type: GrantFiled: July 26, 2005Date of Patent: October 6, 2009Assignee: Bridgestone CorporationInventors: Christine Rademacher, Steven Luo, Terrence E. Hogan
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Patent number: 7598331Abstract: Processes for making temporary wet strength additives, more particularly, processes for oxidizing a homo-crosslinking monomeric unit present in a polymer comprising the homo-crosslinking monomeric unit and a cationic monomeric unit to produce a temporary wet strength additive are provided.Type: GrantFiled: February 16, 2006Date of Patent: October 6, 2009Assignee: The Procter & Gamble CompanyInventors: Robert Lee Barcus, Khosrow Parviz Mohammadi
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Patent number: 7579412Abstract: The present invention relates to a process for preparing carboxyl-terminated polyisobutenes by ozonolysis of polyisobutenes terminated by an ethylenically unsaturated double bond.Type: GrantFiled: May 14, 2004Date of Patent: August 25, 2009Assignee: BASF AktiengesellschaftInventors: Arno Lange, Helmut Mach, Hans Peter Rath, Ulrich Karl, Bela Ivan, Peter Werner Groh, Zsuzsanna Tamara Nagy, Viktoria Palfi
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Patent number: 7576160Abstract: An electrodepositable coating composition comprising a cationic acrylic resin derived from an epoxy function acrylic resin and an IPDI trimer and coated substrates having improved sweat resistance are disclosed. Methods for using the coatings are also disclosed.Type: GrantFiled: May 6, 2005Date of Patent: August 18, 2009Assignee: PPG Industries Ohio, Inc.Inventors: David R. Fenn, Mark L. Follet, Anthony D. Kulfan, Jean-Pierre Marthe, Fabrice Leusiere
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Publication number: 20090186067Abstract: According to an aspect of the present invention, implantable or insertable medical devices are provided that contain at least one covalently crosslinked polymeric region, which contains at least one block copolymer comprising at least one low Tg block and at least one high Tg block.Type: ApplicationFiled: February 27, 2009Publication date: July 23, 2009Applicant: Boston Scientific Scimed, Inc.Inventors: Frederick H. Strickler, Mark Boden
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Patent number: 7550538Abstract: Chlorosulfonated propylene/olefin elastomers containing 0.5-55 weight percent chlorine and 0.15 to 5 weight percent sulfur are prepared from metallocene catalyzed propylene/olefin copolymer base resins having a ratio of Mw/Mn less than 3.5 and a copolymerized propylene content of 70-98 weight percent.Type: GrantFiled: March 12, 2008Date of Patent: June 23, 2009Assignee: DuPont Performance Elastomers LLCInventor: Avinash C. Gadkari
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Publication number: 20090156750Abstract: This invention relates to unsaturated polyester resin or vinyl ester resin compositions comprising a polymer containing reactive unsaturations as a resin; a 1,3-dioxo-component, and optionally a reactive diluent and/or an inhibitor and/or a stabilizer; the resin compositions being curable with a peroxide component, and wherein the resin in the resin composition has an acid value=10; and the resin composition contains—while being cured—a base, which is either selected from the group of organic or inorganic oxides, hydroxides, alkoxides or carboxylates for each of which the cation has a redox potential of the metal of at most ?1V, or of ammonium ions; or is selected from the group of nitrogen-containing organic compounds. The present invention also relates to objects and structural parts prepared from such resin composition by curing with a peroxide.Type: ApplicationFiled: June 6, 2006Publication date: June 18, 2009Applicant: DSM IP ASSETS B.V.Inventors: Johan Franz Gradds Antonius Jansen, Ivo Ronald Kraeger
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Patent number: 7534839Abstract: Anionically-polymerized living polymers are sequentially functionalized with certain agents X? and Y?. A method of preparing a functionalized polymer comprising the steps of reacting the polymer with a functionalizing agent X?, and then further reacting the polymer with a functionalizing agent Y?.Type: GrantFiled: June 9, 2004Date of Patent: May 19, 2009Assignee: Bridgestone CorporationInventors: David F. Lawson, Christine Rademacher, Christopher Robertson
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Patent number: 7524913Abstract: An olefin polymer having greater than 95 percent chain end unsaturation, where greater than 80 percent of said unsaturation comprises a 1,2-disubstituted olefinic unsaturation, especially polymers comprising in polymerized form 4-methyl-1-pentene and more especially highly isotactic polymers, a process of manufacture, methods to functionalize and articles formed therefrom.Type: GrantFiled: January 21, 2005Date of Patent: April 28, 2009Assignee: Dow Global Technolgies, Inc.Inventors: John R. Briggs, Edmund M. Carnahan, Phillip D. Hustad, Tia L. Jackson
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Patent number: 7511102Abstract: A liquid sealing agent used for automobile parts, electric parts, various kinds of machine parts and the like exhibits good oil resistance, heat resistance, adhesiveness and flexibility. A vinyl polymer has at least one crosslinkable silyl group and can yield a cured product exhibiting an oil resistance superior to that of a cured product from a reference polymer obtained by replacing the repeating unit thereof with butyl acrylate alone, in any one item of the immersion test according to JIS K 6258 for the land use 3-5 lubricating oil specified in JIS K 2215.Type: GrantFiled: January 25, 2007Date of Patent: March 31, 2009Assignee: Kaneka CorporationInventors: Nobuhiro Hasegawa, Yoshiki Nakagawa
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Publication number: 20090043051Abstract: Vinylamine-containing polymers are disclosed where the amine groups are substituted with (1) cationic functional groups, (2) anionic functional groups, (3) hydrophobic functional groups, (4) hydrophilic functional groups, (5) functional groups that impart amphoteric characteristics to the polymers, or (6) combinations thereof. Also disclosed are processes for preparing such polymers, as well as compositions comprising such polymers. Among other applications, these polymers can be used in papermaking applications as dry strength additives, wet strength additives, retention aids, drainage aids, and pitch and stickies control agents.Type: ApplicationFiled: July 31, 2008Publication date: February 12, 2009Inventors: Qu-Ming Gu, Jonathan M. McKay, Richard J. Riehle
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Patent number: 7488403Abstract: Compositions comprising a blend of two or more paper strengthening agents have improved stability compared with previously known paper strengthening agents. One component is a polymeric paper strengthening agent, preferably a wet strengthening agent. The other component is a stabilized glyoxalated polyacrylamide prepared by (1) reacting a first portion of glyoxal with a polyacrylamide having pendant amide groups to form a first reaction mixture comprising glyoxalated polyacrylamide; (2) adding an acid to the first reaction mixture to form a second reaction mixture having a reduced pH and comprising the glyoxalated polyacrylamide; and (3) adding a second portion of glyoxal to the second reaction mixture to form the stabilized glyoxalated polyacrylamide. If desired, an aldehyde scavenger can be included in one or more of step (1), step (2), step (3), or the stabilized glyoxalated polyacrylamide. Such compositions can be used to enhance the strength of paper, particularly the wet strength of paper.Type: GrantFiled: August 17, 2004Date of Patent: February 10, 2009Inventors: Cornel Hagiopol, Yuping Luo, David F. Townsend, James W. Johnston, Clay E. Ringold, Karla D. Favors
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Publication number: 20090018274Abstract: A method for the manufacture of an adhesive id described, comprising: (A) Providing an initial reaction product of a solution polymerization reaction, the initial reaction product comprising polymer, unreacted polymerizable reactant, non-poly-merizable material, and solvent; and (B) Purifying the initial reaction product by adding an oxidizing agent and a reducing agent to the initial reaction product and allowing the unreacted polymerizable reactant in the initial reaction product to further react, thereby providing a second reaction product comprising additional polymer and a lower level of unreacted polymerizable reactant than was present in the initial reaction product.Type: ApplicationFiled: September 21, 2006Publication date: January 15, 2009Inventors: Dong-Wei Zhu, Cheryl L. Moore, James T. Wolter
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Patent number: 7476713Abstract: A method for improving the dimensional stability of a shaped article made of a composition containing a nucleated polymeric material, which comprises adding to the polymeric material a divalent metal alcoholate of a polyhydroxy-(C2-C20alkane) before shaping.Type: GrantFiled: September 5, 2005Date of Patent: January 13, 2009Assignee: Ciba Specialty Chemicals Corp.Inventors: David Hild, Jürg Zingg, Philipp Walter
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Patent number: 7473742Abstract: Novel additive systems for lead-free filled cable insulation are disclosed. These systems provide improved electrical and mechanical properties. The base polymer may be metallocene based, non metallocene based or combinations thereof. The additives may contain one or more hindered amine light stabilizers, mercapto compounds, and optionally, amine antioxidants.Type: GrantFiled: October 25, 2006Date of Patent: January 6, 2009Assignee: General Cable Technologies Corp.Inventor: Mark R. Easter
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Publication number: 20080312379Abstract: The invention relates to a process for compounding polycondensates selected from the group consisting of polyamide, polyester and polycarbonate, in the presence of an epoxy-containing styrene and/or (meth)acrylic monomer, of a bisphenol A epoxide or of an epoxy-containing natural oil or fatty acid ester, which comprises carrying out the compounding at temperatures less than/equal to 220° C. and in the presence of an activator selected from the group consisting of: zinc, titanium compound and C1-C12-alkyltriphenylphosphonium halide.Type: ApplicationFiled: February 15, 2006Publication date: December 18, 2008Applicant: BASF AktiengesellschaftInventors: Dietrich Scherzer, Andreas Eipper, Carsten Weiss, Motonori Yamamoto, Gabriel Skupin, Uwe Witt
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Patent number: 7465768Abstract: A novel method of preparing carboxyl-terminated polymers. A monomer is mixed with an organolithium initiator in a hydrocarbon solvent so as to anionically polymerize linear living polymer lithium chains. A trialkyl aluminum compound is also mixed so as to form polymer lithium: aluminate complexes in equilibrium with the linear living polymer lithium chains. When a cyclic anhydride terminator is mixed, the cyclic anhydride terminator preferentially reacts with the C—Li center on a living polymer lithium chain rather than with the C—Al—Li center on a polymer lithium: aluminate complex.Type: GrantFiled: May 25, 2005Date of Patent: December 16, 2008Assignee: Bridgestone CorporationInventors: James E. Hall, James Oziomek
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Patent number: 7439311Abstract: The present invention provides a method for producing a polymer by conducting polymerization in a polymerization reactor having an inner wall covered with an anti-fouling agent comprising an aqueous solution containing a polyvinyl alcohol obtained through saponification of a polyvinyl ester that contains monomer units having a silyl group. In the present invention, the polyvinyl alcohol satisfies the following formulae (I) and (II): 370<P×S<9000 ??(I) where P indicates the viscosity-average degree of polymerization of the polyvinyl alcohol, and S indicates the content (mole %) of the monomer units having a silyl group of formula (1) in the polyvinyl alcohol; 0.2/100?(A?B)/(B)?75/100 ??(II) where A indicates the content (ppm) of silicon atoms in the polyvinyl alcohol, and B indicates the content (ppm) of silicon atoms in the polyvinyl alcohol that was washed with sodium hydroxide-containing methanol and then washed with methanol by Soxhlet extraction.Type: GrantFiled: January 18, 2008Date of Patent: October 21, 2008Assignee: Kuraray Co., Ltd.Inventors: Masaki Kato, Kazuyuki Somemiya, Takeshi Kusudou, Naoki Fujiwara
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Patent number: 7417093Abstract: In a process for functionalizing an ?-olefin/diene copolymer, a copolymer comprising units derived from at least one ?-olefin and units derived from at least one diene, which copolymer contains at least one double bond, is contacted in a reaction medium with an alkyl hydroperoxide in the presence of a catalyst comprising a metal of Group 5 or 6 of the Periodic Table or a compound thereof, under reaction conditions which promote formation of an oxirane ring or hydroxyl groups at the site of the double bond.Type: GrantFiled: May 21, 2007Date of Patent: August 26, 2008Assignee: ExxonMobil Chemical Patents Inc.Inventors: Karla S. Colle, Caiguo Gong, Kevin R. Squire
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Patent number: 7414095Abstract: A solution process for polymerizing one or more ?-olefins of the formula CH2?CHR, where R is H or an alkyl radical C1-C18, to produce a polymer that is soluble in the reaction medium, comprising the steps of: continuously polymerizing in a liquid phase the ?-olefin in the presence of a catalyst system based on a transition metal compound to obtain a solution of polymer in the reaction medium; the polymeric solution obtained from step a) is then mixed in one or more mixing stages with an aqueous mixture comprising one or more organic compounds having at least a hydroxy or epoxy group, said aqueous mixture having a dynamic viscosity at 30° C. higher than 50 cP (centiPoise).Type: GrantFiled: November 29, 2004Date of Patent: August 19, 2008Assignee: Basell Polioefine Italia s.r.l.Inventors: Giuseppe Penzo, Daniele Bigiavi, Massimo Covezzi, Maria Silvia Tonti, Anna Fait, Pietro Baita
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Patent number: 7385011Abstract: The invention discloses a method for selectively introducing carbonyl groups into polymers by oxygenation of double C?C bonds of polymers with the aid of nitrous oxide (N2O) at a temperature comprised between 50 and 350° C. and a pressure of N2O of from 0.01 to 100 atmospheres. The introduction of an insignificant amount of C?O groups allows one to modify the physico-chemical properties of a polymer, with its molecular weight and molecular-weight distribution preserved. Deeper oxygenation results in controlled cleavage of polymer macromolecules and makes it possible to produce oxygen-containing oligomers having a desired molecular weight.Type: GrantFiled: May 17, 2004Date of Patent: June 10, 2008Assignee: Institut Kataliza Imeni G.K. Boreskova, Sibirskogo Otdeleniya Rossiiskoi Akademii NaukInventors: Constantin Alexandrovich Dubkov, Sergey Vladimirovich Semikolenov, Vladimir Alexandrovich Zakharov, Valentin Nikolaevich Parmon, Ludmila Gennadyevna Echevskaya, Evgeny Vladimirovich Starokon, Gennady Ivanovich Panov
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Patent number: 7361712Abstract: A water absorbing agent comprising a crosslinked polymer including a water-soluble vinyl monomer (a1) and/or a vinyl monomer (a2) that is formed into the water-soluble vinyl monomer (a1) by hydrolysis, and a crosslinking agent (b) as an essential constituting unit, wherein the following formulae (1) and (2) are satisfied; a process for its production, and absorbers and absorbent articles made by the water absorbing agent. (Y)??1.14(X)+69.5 ??(1) (X)=((x1)2+4×(x2)2)1/2 ??(2) wherein (x1) denotes a water-retention amount (g/g) of the water absorbing agent after being soaked in a physiological saline for one hour; (x2) denotes an absorption amount (g/g) of the water absorbing agent after being soaked in a physiological saline under loading of 0.9 psi for one hour; and (Y) denotes a liquid permeation speed (ml/min) of a physiological saline after the water absorbing agent is soaked in a physiological saline under loading of 0.3 psi for one hour.Type: GrantFiled: November 18, 2002Date of Patent: April 22, 2008Assignee: San-Dia Polymers, Ltd.Inventors: Munekazu Satake, Yoshihisa Ohta
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Patent number: 7354977Abstract: The present invention relates to a process for hydroxyalkylating terminal carboxylic acid groups. More specifically, this invention provides a process for preparing hydroxyl-functionalized materials, such as butadiene nitrile polymers, from carboxylic acid-functionalized materials, such as butadiene nitrile polymers, using a carbocyclic carbonate, such as ethylene carbonate, or a carbocyclic sulfite, such as ethylene sulfite.Type: GrantFiled: January 16, 1998Date of Patent: April 8, 2008Assignee: Henkel CorporationInventors: John G. Woods, Susanne D. Morrill, Anthony F. Jacobine
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Publication number: 20080064819Abstract: The present invention is directed to a method for preparing a cellulose reactive adduct of polyvinylamide and a composition resulting from the method. The preparation of the cellulose reactive adduct is carried out close to a Critical Concentration defined herein. When the reaction is run close to this Critical Concentration, the risk of gelation is minimized, consumed glyoxal is maximized, and shelf live is enhanced. Additionally, the glyoxalated vinylamides of the present invention impart improved wet and dry strengthening efficiency to paper and paperboard when compared to adducts disclosed in previously described art.Type: ApplicationFiled: August 28, 2007Publication date: March 13, 2008Inventor: Matthew D. Wright
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Publication number: 20080060756Abstract: A water activated adhesive system is described that is particularly suited for applying non-paper polymeric labels to surfaces which have low moisture permeability. The adhesive system is characterized by a dry non-tacky surface that becomes tacky in less than one second when contacted with a water-based activator. While it is a water activated adhesive, it is also characterized after aging bonded to a substrate by resistance to adhesive failure during 72 hours of immersion in ice/water mixture. The adhesive is beneficial to allow use of existing paper labeling equipment with polymeric labels.Type: ApplicationFiled: September 13, 2007Publication date: March 13, 2008Applicant: LUBRIZOL ADVANCED MATERIALS, INC.Inventors: Lawrence J. Schnieders, Alexander V. Lubnin
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Patent number: 7342084Abstract: The present invention provides peroxidically crosslinked hydrogenated vinylpolybutadienes which serve for production of technical rubber products and which have very good recovery performance over a wide temperature range.Type: GrantFiled: September 15, 2006Date of Patent: March 11, 2008Assignee: LANXESS Deutschland GmbHInventors: Werner Obrecht, Andreas Bischoff
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Patent number: 7339005Abstract: There is provided a process for producing a both end-modified diene polymer rubber comprising the steps of: (1) polymerizing a conjugated diene monomer or a combination thereof with an aromatic vinyl monomer in the presence of a compound represented by the following formula (1) to produce an alkali metal end-carrying active polymer, and (2) reacting the alkali metal end-carrying active polymer with an amine compound, a ketone compound, an acrylamide compound, a heterocyclic compound or a silyl compound represented by specific formulas, respectively: R—(CH2)n—X-M??(1) wherein R is a functional group containing a substituent group-carrying nitrogen atom, X is a saturated or unsaturated hydrocarbon group comprising from 0 to 10 conjugated diene monomer units or aromatic vinyl monomer units, n is an integer of from 1 to 10, and M is an alkali metal.Type: GrantFiled: December 22, 2003Date of Patent: March 4, 2008Assignee: Sumitomo Chemical Company, LimitedInventors: Mayumi Oshima, Seiichi Mabe, Katsunari Inagaki
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Patent number: 7297748Abstract: The invention is directed to a direct to metal coating composition containing an acrylic polyol synthesized with a phosphated monomer having improved adhesion and corrosion resistance characteristics. The invention is also directed to a method for producing a direct to metal coating composition containing an acrylic polyol synthesized with a phosphated monomer on a substrate by applying the coating composition of the invention to a metal surface. The invention is further directed to an acrylic polyol synthesized with a phosphated monomer coated article having improved adhesion and corrosion resistance characteristics.Type: GrantFiled: August 30, 2005Date of Patent: November 20, 2007Assignee: Rhodia Inc.Inventor: Satyen Trivedi
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Patent number: 7279532Abstract: A modified hydrogenated copolymer comprising a hydrogenated copolymer and a functional group-containing modifier group bonded to the hydrogenated copolymer, wherein the hydrogenated copolymer is obtained by hydrogenating an unhydrogenated copolymer comprising conjugated diene monomer units and vinyl aromatic monomer units, the unhydrogenated copolymer having at least one polymer block (H) of the vinyl aromatic monomer units, and wherein the modified hydrogenated copolymer has the following characteristics (1) to (4): (1) a content of the vinyl aromatic monomer units of from more than 60% by weight to less than 90% by weight, based on the weight of the hydrogenated copolymer, (2) a content of the polymer block (H) of from 0.1 to 40% by weight, based on the weight of the unhydrogenated copolymer, (3) a weight average molecular weight of from more than 100,000 to 1,000,000, and (4) a hydrogenation ratio of 70% or more, as measured with respect to the double bonds in the conjugated diene monomer units.Type: GrantFiled: February 27, 2003Date of Patent: October 9, 2007Assignee: Asahi Kasei Chemicals CorporationInventors: Masahiro Sasagawa, Shigeki Takayama, Shigeru Sasaki, Takahiro Hisasue, Katsumi Suzuki, Shigeo Nakajima, Toshinori Shiraki
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Patent number: 7273908Abstract: A chlorosulphonated ethylene-?-olefin copolymer having a chlorine content of 0.5-20% by weight and a glass transition temperature in differential scanning calorimetry (DSC) of ?50° C. or lower and being crystalline. The chlorosulphonated ethylene-?-olefin copolymer is obtained by chlorinating a crystalline ethylene-?-olefin copolymer having a density of 890 kg/m3 or lower, obtained by copolymerizing ?-olefin comprising a hydrocarbon having 4 or more carbon atoms, with ethylene, and then chlorosulphonating the chlorinated copolymer.Type: GrantFiled: June 21, 2005Date of Patent: September 25, 2007Assignee: Tosoh CorporationInventors: Nobuyuki Ito, Seiichi Shimomura, Tuneo Hironaka, Hideyoshi Nakamura
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Patent number: 7259218Abstract: Processes for making temporary wet strength additives, more particularly, processes for oxidizing a homo-crosslinking monomeric unit present in a polymer comprising the homo-crosslinking monomeric unit and a cationic monomeric unit to produce a temporary wet strength additive are provided.Type: GrantFiled: February 17, 2005Date of Patent: August 21, 2007Assignee: The Procter + Gamble CompanyInventors: Robert Lee Barcus, Khosrow Parviz Mohammadi
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Patent number: 7238754Abstract: A process for improving the melt characteristics of polyethylene resins is provided. The process involves contacting a polyethylene resin powder with a low level of free radical initiator at a temperature below the melting point of the resin.Type: GrantFiled: December 12, 2005Date of Patent: July 3, 2007Assignee: Equistar Chemicals, LPInventors: Andrew J. Scheie, Harilaos Mavridis
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Patent number: RE39617Abstract: Hydrogenated butadiene polymers having terminal functional groups have minimum viscosity at any molecular weight when the 1,2-addition is between 30% and 70% Hydrogenated butadiene polymers having about two terminal hydroxyl groups per molecule have surprisingly lower viscosities at 30% to 70% 1,2-addition than similar polymers having either higher or lower amounts of 1,2-addition. The polymers are useful in making coatings, sealants, binders, and block copolymers with polyesters, polyamides, and polycarbonates.Type: GrantFiled: September 5, 2003Date of Patent: May 8, 2007Assignee: Kraton Polymers US LLCInventors: Dale L. Handlin, Jr., Daniel E. Goodwin, Carl L. Willis, David J. St. Clair, John D. Wilkey, Michael J. Modic, Craig A. Stevens
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Patent number: RE39635Abstract: The invention provides hydrogels for use in the production of biomedical devices. In particular, the invention provides hydrogels formed from siloxane prepolymers and a hydrophilic monomer, which hydrogels are optically transparent.Type: GrantFiled: February 28, 2002Date of Patent: May 15, 2007Inventors: Douglas G. Vanderlaan, Frank Molock, Giancarlo Fruzzetti