Elemental Metal Or Inorganic Compound Thereof Patents (Class 525/371)
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Publication number: 20090148682Abstract: To provide a glass substrate with protective glass which suppresses formation of microscopic scratches on the back surface of the glass substrate in the production process for a display device, and which prevents a strength decrease in the process or formation of etch pits after a chemical etching treatment; a process for producing a display device by using the glass substrate with protective glass; and silicone for release paper for the glass substrate with protective glass. A glass substrate with protective glass, which comprises a glass substrate and a protective glass substrate laminated on each other, and which is characterized in that the glass substrate and the protective glass substrate are laminated by a resin layer having removability.Type: ApplicationFiled: January 6, 2009Publication date: June 11, 2009Applicant: ASAHI GLASS COMPANY, LIMITEDInventor: Toshihiko HIGUCHI
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Patent number: 7476712Abstract: The invention is directed to a film which comprises a poly(carboxylic acid) polymer and a polyvalent metal compound, which is endowed with excellent gas barrier property against, for example oxygen, which has such resistance that the appearance, shape, and gas-barrier properties are not impaired by neutral water, high-temperature water vapor, or hot water; a laminate produced by use of the film; and a process for producing the film or laminate industrially conveniently at low cost. The film or laminate of the present invention is suitable for use as a package, packaging container, or vacuum insulation material for articles which are apt to be deteriorated by oxygen, etc., such as foods, beverages, chemicals, medicines, and metallic precision parts; e.g., electronic parts.Type: GrantFiled: April 23, 2003Date of Patent: January 13, 2009Assignee: Kureha CorporationInventors: Hideaki Tanaka, Hiroyuki Oba, Masahiro Yamazaki, Tomohisa Hasegawa
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Patent number: 7462677Abstract: An initiator is presented for anionically polymerizing monomers, to provide a functional head group on the polymer. A polymer having a functional head group derived from a sulfur containing anionic initiator, and optionally as additional functional group resulting from the use of a functional terminating reagent, coupling agent or linking agent is also provided. A method is presented for anionically polymerizing monomers comprising the step of polymerizing the monomers with a sulfur containing anionic initiator to provide a functional head group on the polymer. An elastomeric compound, comprising a functional polymer and filler is also described. Also provided is a tire having decreased rolling resistance resulting from a tire component containing a vulcanizable elastomeric compound.Type: GrantFiled: September 13, 2007Date of Patent: December 9, 2008Assignee: Bridgestone CorporationInventors: Terrence E. Hogan, William Hergenrother, Yuan-Yong Yan, David Lawson
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Patent number: 7288594Abstract: Provided is a process for producing a modified polymer, characterized by carrying out primary modification in which a hydrocarbyloxysilane compound is reacted with the active site of a polymer having an active site of an organic metal type in a molecule and then carrying out secondary modification in which the hydrocarbyloxysilane compound is further reacted therewith. This makes it possible to provide a modified polymer which enhances interactions with silica and carbon black when used for both of silica-blended and carbon black-blended rubber compositions and which elevates the fracture characteristic, the abrasion resistance and the low heat buildup property at the same time and can exhibit a good workability.Type: GrantFiled: November 29, 2002Date of Patent: October 30, 2007Assignee: Bridgestone CorporationInventors: Youichi Ozawa, Hajime Kondou, Noriko Endou
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Patent number: 7232528Abstract: The surface treatment agent for copper and copper alloys contains hydrogen peroxide, a mineral acid, an azole compound, silver ion and a halide ion. The surface treatment agent for copper and copper alloys is useful in the production of printed wiring boards in electronics industry. The surface treatment agent roughens the surface of copper and copper alloys. Particularly, the surface treatment agent can form a uniform and undulation-free roughened surface on copper-clad substrates having plated mirror surface, this having been difficult in conventional techniques, thereby significantly improving the adhesion to etching resists, solder resists, in addition, to prepregs and a resin for mounting electronic parts.Type: GrantFiled: June 18, 2002Date of Patent: June 19, 2007Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Akira Hosomi, Naoki Kogure, Kenichi Moriyama, Kenichi Takahashi, Atsushi Hosoda, Kazuhiko Ikeda
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Patent number: 7153919Abstract: An initiator is presented for anionically polymerizing monomers, to provide a functional head group on the polymer. A polymer having a functional head group derived from a sulfur containing anionic initiator, and optionally as additional functional group resulting from the use of a functional terminating reagent, coupling agent or linking agent is also provided. A method is presented for anionically polymerizing monomers comprising the step of polymerizing the monomers with a sulfur containing anionic initiator to provide a functional head group on the polymer. An elastomeric compound, comprising a functional polymer and filler is also described. Also provided is a tire having decreased rolling resistance resulting from a tire component containing a vulcanizable elastomeric compound.Type: GrantFiled: October 30, 2003Date of Patent: December 26, 2006Assignee: Bridgestone CorporationInventors: Terrence E. Hogan, William Hergenrother, Yuan-Yong Yan, David Lawson
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Patent number: 7119151Abstract: An antimicrobial agent utilizes a resin having acrylonitrile and styrene and/or a conjugated diene as units. The antimicrobial agent includes a metal-salt-containing copolymer, and the metal-salt-containing copolymer is obtained by treating a copolymer containing acrylonitrile and at least one of styrene and a conjugated diene as units with an acid to thereby introduce acid radicals into the copolymer, and converting at least part of the acid radicals into a salt of at least one metal selected from among Ag, Cu, and Zn.Type: GrantFiled: December 19, 2003Date of Patent: October 10, 2006Assignee: Sony CorporationInventors: Haruo Watanabe, Yasuhito Inagaki, Tsutomu Noguchi
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Patent number: 6927269Abstract: This invention discloses a rubbery polymer which is comprised of repeat units that are derived from (1) at least one conjugated diolefin monomer, and (2) at least one functionalized monomer having of the structural formula: wherein R represents an alkyl group containing from 1 to about 10 carbon atoms or a hydrogen atom, and wherein R1 and R2 can be the same or different and represent hydrogen atoms or a moiety of the structural formula: wherein the R3 groups in repeat units and in different repeat units can be the same or different and represent hydrogen atoms or alkyl groups containing from 1 to about 4 carbon atoms, wherein n and x represents integers from 1 to about 10, with the proviso that R1 and R2 can not both be hydrogen atoms.Type: GrantFiled: June 30, 2003Date of Patent: August 9, 2005Assignee: The Goodyear Tire & Rubber CompanyInventors: Stephan Rodewald, Steven Kristofer Henning, Brian Earl Burkhart
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Patent number: 6903163Abstract: The present invention relates to high melt swell partially neutralized alpha olefin acid copolymers. It also relates to a process for making such high melt swell polymers as well as for covalently crosslinking other polar copolymers including non-neutralized acid copolymers and non-polar alpha olefin polymers by using a minor amount of metal acrylate, particularly sodium or zinc acrylate.Type: GrantFiled: September 19, 2002Date of Patent: June 7, 2005Assignee: E.I. du Pont de Nemours and CompanyInventors: Richard James Powell, Richard T. Chou, George W. Prejean
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Patent number: 6872783Abstract: A continuous process for manufacture of a polymer including branched and linear components comprising first polymerizing conjugated diene(s) in the presence of an organometallic initiator to a conversion that is at least 90% complete. A coupling agent is added to obtain a polymer including branched and linear components. The coupling agent is added at a ratio of about 0.3 to about 0.6 coupling equivalents to initiator equivalents.Type: GrantFiled: November 26, 2002Date of Patent: March 29, 2005Assignee: Firestone Polymers, LLCInventor: Mark N. Dedecker
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Patent number: 6812307Abstract: This invention is based upon the unexpected finding that random copolymers of 1,3-butadiene monomer and 3-(2-pyrrolidinoethyl) styrene and/or 4-(2-pyrrolidinoethyl) styrene having a low vinyl content can be synthesized by anionic polymerization at normal polymerization temperatures without the need for a conventional polar modifier. The subject invention more specifically discloses a process for synthesizing a rubbery polymer that comprises copolymerizing at least one conjugated diolefin monomer and at least one functionalized monomer in an organic solvent at a temperature which is within the range of 20° C. to about 100° C., wherein the polymerization is initiated with an anionic initiator, wherein the functionalized monomer is of the structural formula: wherein n represents an integer from 4 to about 10, and wherein the polymerization is conducted in the absence of conventional polar modifiers.Type: GrantFiled: July 22, 2003Date of Patent: November 2, 2004Assignee: The Goodyear Tire & Rubber CompanyInventors: Adel Farhan Halasa, Wen-Liang Hsu
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Patent number: 6790921Abstract: This invention discloses a rubbery polymer which is comprised of repeat units that are derived from (1) at least one conjugated diolefin monomer, and (2) at least one functionalized monomer having of the structural formula: wherein R represents an alkyl group containing from 1 to about 10 carbon atoms or a hydrogen atom, and wherein R1 and R2 can be the same or different and represent hydrogen atoms or a moiety of the structural formula: wherein the R3 groups in repeat units and in different repeat units can be the same or different and represent hydrogen atoms or alkyl groups containing from 1 to about 4 carbon atoms, wherein n and x represents integers from 1 to about 10, with the proviso that R1 and R2 can not both be hydrogen atoms.Type: GrantFiled: June 30, 2003Date of Patent: September 14, 2004Assignee: The Goodyear Tire & Rubber CompanyInventors: Stephan Rodewald, Steven Kristofer Henning, Brian Earl Burkhart
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Patent number: 6727323Abstract: A process for reducing odor emission in aqueous polymer dispersions and in polymer powders comprises admixing an aqueous dispersion of a polymer obtained by free-radical polymerization of one or more ethylenically unsaturated monomers, after conclusion of the polymerization, with an odor-reducing composition containing a) one or more water-soluble compounds selected from metal salts of copper(II), silver, aluminum, zinc and iron(III), potassium permanganate, imidazoline, and imidazoline derivatives, optionally in combination with b) one or more water-soluble reducing agents selected from ascorbic acid, isoascorbic acid, iron(II) salts, zinc formaldehydesulfoxylate and alkali metal formaldehydesulfoxylate, and optionally drying the thus treated aqueous polymer dispersion to form a polymer powder.Type: GrantFiled: June 17, 2003Date of Patent: April 27, 2004Assignee: Wacker Polymer Systmes GmbH & Co. KGInventor: Peter Weiler
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Patent number: 6703451Abstract: A superabsorbent resin composition comprising the following components components (A) and (D), wherein (A) is a superabsorbent resin, and (D) a coordination compound in which a chelating agent is coordinated with metal A.Type: GrantFiled: July 3, 2001Date of Patent: March 9, 2004Assignee: Kao CorporationInventors: Yasunori Hosokawa, Tadashi Igarashi, Isao Tsuru, Yoko Hanada
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Patent number: 6680082Abstract: The present invention relates to neutralized copolymer resins having at least two different metals with one of the metals being zinc. These mixed metal resins are transformed into particulate or powder form for application to metal objects. The powder composition has a good balance of properties including all the advantages associated with neutralized ethylene acid copolymers while also having good powder coating behavior for coatings applied to metal objects. The invention also relates to coated metal objects containing the powder composition and metal.Type: GrantFiled: October 3, 2002Date of Patent: January 20, 2004Assignee: E. I. du Pont de Nemours and CompanyInventors: Richard Tien-Hua Chou, Mark Bernard Kelly
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Patent number: 6670424Abstract: The present invention is concerned with cross-linked sulfonated polymers, eventually perfluorinated, and their preparation process. When molded in the form of membranes, the polymers are useful in electrochemical cells, in a chlorine-sodium electrolysis process, as separator in an electrochemical preparation or organic and inorganic compounds, as separators between an aqueous phase and an organic phase, or as catalyst for Diels-Alder additions, Friedel-Craft reactions, aldol concentrations, cationic polymerisation, esterification, and acetal formation.Type: GrantFiled: September 7, 1999Date of Patent: December 30, 2003Assignee: Hydro-QuebecInventors: Christophe Michot, Michel Armand
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Patent number: 6653430Abstract: A butadiene polymer (i) having a cis bond unit content of at least 50% based on the total butadiene units, a number average molecular weight (Mn) of 1,000 to 10,000,000, and at least 80%, based on the total molecular chains, of living chains containing a transition metal of group IV of the Periodic table at a terminal thereof; a polymer (ii) obtained by modifying terminals of the polymer (i); and a polymer (iii) obtained by coupling the polymers (i). These polymers (i), (ii) and (iii) are obtained by polymerizing a conjugated diene monomer alone or with a copolymerizable monomer at a specific temperature in the presence of a catalyst comprising a compound (A) of a transition metal of group IV of the periodic table having a cyclopentadienyl structure and a co-catalyst (B) selected from organoaluminum-oxy compound (a) and others and optionally further by contacting the resultant polymer with a terminal modifier or a coupling agent.Type: GrantFiled: June 18, 2001Date of Patent: November 25, 2003Assignees: Japan as Represented by Director General of the Agency of Industrial Science and Technology, Japan Chemical Innovation InstituteInventors: Kazuo Soga, Michihiko Asai, Yasuzo Suzuki, Akira Miyazawa, Kenji Tsuchihara, Masahide Murata, Hiroyuki Ozaki, Masanao Kawabe, Yoshifumi Fukui, Jizhy Jin, Hideaki Hagihara, Toshio Kase
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Patent number: 6642331Abstract: Perfluoroelastomers, curable by peroxidic route, obtainable by polymerizing the following monomers: a) tetrafluoroethylene (TFE); b) fluorovinylethers of general formula: CFX═CXOCF2OR (I) c) bis-olefins having general formula: RI1RI2C═CRI3—Z—CRI4═CRI5RI6 (IA) d) optionally, one or more fluorinated olefinic comonomers selected from C2-C8 perfluoroolefins, perfluoroalkylvinylethers (PAVE) CF2═CFOR2f, perfluoro-oxyalkylvinylethers CF2═CFOXa, said perfluoroelastomers comprising iodine and/or bromine atoms in the chain and/or in end position, said halogen atoms deriving from “cure site” comonomers and/or from chain transfer agents used in polymerization.Type: GrantFiled: October 16, 2002Date of Patent: November 4, 2003Assignee: Ausimont S.p.A.Inventors: Marco Apostolo, Stefano Arrigoni
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Patent number: 6639048Abstract: A process for reducing the residual monomer amount in aqueous polymer dispersions comprises aftertreating with a redox initiator system.Type: GrantFiled: March 8, 2002Date of Patent: October 28, 2003Assignee: BASF AktiengesellschaftInventors: Claudia Wood, Reinhard Schneider, Eberhard Beckmann
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Patent number: 6627721Abstract: This invention discloses a rubbery polymer which is comprised of repeat units that are derived from (1) at least one conjugated diolefin monomer, and (2) at least one functionalized monomer having of the structural formula: wherein R represents an alkyl group containing from 1 to about 10 carbon atoms or a hydrogen atom, and wherein R1 and R2 can be the same or different and represent hydrogen atoms or a moiety selected from the group consisting of wherein R3 groups can be the same or different and represent alkyl groups containing from 1 to about 10 carbon atoms, aryl groups, allyl groups, and alkyloxy groups of the structural formula —(CH2)y—O—(CH2)z—CH3, wherein Z represents a nitrogen containing heterocyclic compound, wherein R4 represents a member selected from the group consisting of alkyl groups containing from 1 to about 10 carbon atoms, aryl groups, and allyl groups, and wherein n, x, y and z represents integers from 1 to about 10, with theType: GrantFiled: September 19, 2002Date of Patent: September 30, 2003Assignee: The Goodyear Tire & Rubber CompanyInventors: Stephan Rodewald, Steven Kristofer Henning, Brian Earl Burkhart
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Patent number: 6569911Abstract: A method of manufacturing a support media from a cross-linked polymerisate based on vinyl compounds, and exhibiting residual vinyl groups. The characteristic feature of the method is that the polymerisate is subjected to a heating step that preferably is carried out under reduced access of oxygen. The use of the support media is also described.Type: GrantFiled: March 5, 2001Date of Patent: May 27, 2003Assignee: Amersham Biosciences ABInventors: Torunn Arntsen, Jan Roger Karlson, Geir Fonnum, Steinar Hagen
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Patent number: 6559242Abstract: An aqueous immersion bath contains a water-soluble peroxide compound and a transition metal salt and is used to activate the surface of a thermoplastic olefin prior to the application of a coating thereon. After immersion of the thermoplastic olefin material in the aqueous immersion bath, an improved adhesion between the coating and the surface of the thermoplastic olefin material is obtained.Type: GrantFiled: May 2, 2002Date of Patent: May 6, 2003Assignee: Ford Global Technologies, Inc.Inventors: James Charles Ball, Willie C Young
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Publication number: 20030065103Abstract: The present invention relates to neutralized copolymer resins having at least two different metals with one of the metals being zinc. These mixed metal resins are transformed into particulate or powder form for application to metal objects. The powder composition has a good balance of properties including all the advantages associated with neutralized ethylene acid copolymers while also having good powder coating behavior for coatings applied to metal objects. The invention also relates to coated metal objects containing the powder composition and metal.Type: ApplicationFiled: October 3, 2002Publication date: April 3, 2003Inventors: Richard Tien-Hua Chou, Mark Bernard Kelly
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Patent number: 6525140Abstract: A continuous process for manufacture of a polymer including branched and linear components comprising first polymerizing conjugated diene(s) in the presence of an organometallic initiator to a conversion that is at least 90% complete. A coupling agent is added to obtain a polymer including branched and linear components. The coupling agent is added at a ratio of about 0.3 to about 0.6 coupling equivalents to initiator equivalents.Type: GrantFiled: March 23, 2000Date of Patent: February 25, 2003Assignee: Firestone Polymers, LLCInventor: Mark N. Dedecker
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Patent number: 6515087Abstract: It is important for rubbery polymers that are used in tires, hoses, power transmission belts and other industrial products to have good compatibility with fillers, such as carbon black, silica, clay (including organoclays), and mixtures thereof. To attain improved interaction with fillers such rubbery polymers can be functionalized with various compounds, such as amines. The present invention discloses a process for synthesizing a rubbery polymer that is functionalized to attain improved compatibility with fillers.Type: GrantFiled: December 6, 2001Date of Patent: February 4, 2003Assignee: The Goodyear Tire & Rubber CompanyInventors: Wen-Liang Hsu, Adel Farhan Halasa, Scott McDowell Christian, Michael Lester Kerns
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Patent number: 6512058Abstract: This invention relates to a method of producing modified vinyl ether polymers, wherein vinyl ether polymers comprising recurring units of general formula (I) where R represents a C2-C4 alkyl group and x denotes an integer from 10 to 1000, are partially transetherified with compounds of general formula Y—OH, wherein Y represents aliphatic and/or cycloaliphatic hydrocarbon groups comprising 5 to 30 carbon atoms, the hydrogen atoms of which can be replaced at least in part by halogen atoms and/or aryl radicals, and/or represents aliphatic, cycloaliphatic and/or aromatic groups with a molecular weight of up to 6000 which contain at least one ether group —O— or an ester group —COO— within the molecule, in the presence of compounds of the platinum metals with the release of the corresponding C2-C4 alcohols, wherein statistically at least one R radical is replaced by a Y radical per molecule of vinyl ether polymer.Type: GrantFiled: March 21, 2000Date of Patent: January 28, 2003Assignee: BYJ-Chemie GmbHInventors: Karlheinz Haubennestel, Alfred Bubat
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Patent number: 6469106Abstract: There is provided a process for producing a modified diene polymer rubber, which comprises the steps of: (i) polymerizing a conjugated diene compound, or a combination of a conjugated diene compound and an aromatic vinyl compound in a hydrocarbon solvent in the presence of an alkali metal catalyst, thereby obtaining an active conjugated diene polymer having an alkali metal at the end thereof, and (ii) reacting the active conjugated diene polymer having an alkali metal at the end thereof with an amine compound represented by the specific formula (1), thereby obtaining the modified diene polymer rubber.Type: GrantFiled: August 20, 2001Date of Patent: October 22, 2002Assignee: Sumitomo Chemical Company, LimitedInventors: Katsunari Inagaki, Seiichi Mabe, Yoshihiro Nakatsuji
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Patent number: 6462138Abstract: A process is described for reducing the residual monomer content in a liquid solution, mixture, melt, suspension or dispersion of a polymer by postpolymerization with addition of a redox initiator system at a reaction temperature appropriate to it and with an extremely short mixing time of the liquid system in the production reactor by metering—gradually, in portions or continuously—at least one of the redox initiator components required to initiate polymerization of the residual monomers over a period (metering time) which is from about 10 to 250 times the mixing time of the liquid system in said reactor.Type: GrantFiled: March 15, 2000Date of Patent: October 8, 2002Assignee: BASF AktiengesellschaftInventors: Robert Rupaner, Sven Lawrenz, Johannes Dobbelaar, Gerhard Bauer, Franz-Josef Mueseler, Werner Kirchner, Bradley Ronald Morrison, Jürgen Nahstoll, Martin Meister, Reinhard Bächer, Wolfgang Hübinger, Gerhard Schumacher
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Patent number: 6444760Abstract: A process is described for effectively reducing the residual monomer content of an aqueous polymer dispersion by aftertreatment at atmospheric pressure or above with an initiator system comprising a) a hydroperoxide, hydrogen peroxide or a peracid, and b) an &agr;-hydroxy carboxylic acid, such as tartaric acid, or with a salt thereof.Type: GrantFiled: March 17, 2000Date of Patent: September 3, 2002Assignee: BASF AktiengesellschaftInventors: Robert Rupaner, Gerhard Bauer, Sven Lawrenz, Claudia Heibel, Johannes Dobbelaar
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Patent number: 6433105Abstract: A butadiene-type polymer suitable for use as a processing aid in a rubber composition is formed by polymerizing butadiene or other conjugated diene monomers in a solvent, such as hexane, to form a polymer of relatively low molecular weight (around 30-40,000 g/mole). The polymer is coupled with a coupling agent, such as tin tetrachloride, to increase its molecular weight to a level at which conventional desolventizing processes may be used to remove the solvent from the mix. After desolventizing, the polymer is decoupled, by heating, to return the polymer to its original molecular weight.Type: GrantFiled: June 9, 2000Date of Patent: August 13, 2002Assignee: Bridgestone CorporationInventor: Thomas J. Lynch
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Patent number: 6410666Abstract: The invention discloses a method for preparing a tri block copolymer of the formula: comprising: (a) contacting a cycloalkene with a chain transfer agent of the formula: Z—Y═Y—Z in the presence of a metal carbene metathesis catalyst to form a telechelic polymer; and (d) contacting the telechelic polymer with an alkene of the formula in the presence of an ATRP organometallic catalyst wherein n and m are integers; Z is an ATRP initiator and —Y═Y— is an alkenyl group; and, R′ is selected from the group consisting of aryl, nitrile and C1-C20 carboxylate, wherein R′ is substituted or unsubstituted. The invention also discloses a method for preparing a diblock copolymer. In addition, the invention encompasses a triblock copolymer having no 1,2-PBD structure in the PBD portion of the copolymer.Type: GrantFiled: March 17, 2000Date of Patent: June 25, 2002Assignee: California Institute of TechnologyInventors: Robert H. Grubbs, Christopher W. Bielawski
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Publication number: 20020061980Abstract: Rubbery polymers made by anionic polymerization can be coupled with tin halides or silicon halides to improve the characteristics of the rubber for use in some applications, such as tire treads. In cases where the rubbery polymer is synthesized by anionic polymerization utilizing a polar modifier it is difficult to attain a high level of coupling.Type: ApplicationFiled: September 21, 2001Publication date: May 23, 2002Inventors: Wen-Liang Hsu, Adel Farhan Halasa
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Patent number: 6387291Abstract: An aqueous leather coating composition and a method for coating leather with the aqueous coating composition are provided. The aqueous coating composition contains an aqueous emulsion polymer which includes from 0.4% to 10% by weight of a copolymerized acetoacetate or acetoacetamide monomer and has a glass transition temperature from −20° C. to 10° C. In an alternative embodiment the aqueous coating composition contains an aqueous emulsion polymer which includes from 0.1% to 6% by weight of a copolymerized acetoacetate or acetoacetamide monomer and from 2% to 15% by weight of copolymerized carboxylic acid monomer and has a glass transition temperature from −40° C. to 0° C., the polymer having been contacted with a transition metal oxide, hydroxide, or carbonate at a pH less than 9 in an amount greater than 0.20 equivalent of transition metal per equivalent of copolymerized carboxylic acid monomer.Type: GrantFiled: May 31, 2001Date of Patent: May 14, 2002Assignee: Rohm and Haas CompanyInventors: Patricia Marie Lesko, Frederick James Schindler
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Patent number: 6362286Abstract: A method for reducing the molecular weight of olefin copolymers comprises contacting an olefin copolymer and a base oil containing less than about 0.05 wt. % sulfur in the presence of oxygen and at a temperature of at least about 60° C.Type: GrantFiled: December 13, 1999Date of Patent: March 26, 2002Assignee: Exxon Chemical Patents Inc.Inventors: James Macfarlane Gardiner, Keith James Fenner, Ralph Joseph Spohn, Gary W. Ver Strate
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Patent number: 6359102Abstract: Improvements are disclosed for biphasic polymerization processes in which an aqueous solution of a first monomer that is hydrolytically unstable below a pH of about six or above a pH of about eight is admixed with a water-immiscible organic solvent and there is added to the admixture a catalyst selected from tertiary amine, quaternary amine and phosphonium catalysts, an acid-forming co-monomer for the first monomer, an acid scavenger, after which the resulting polymer is recovered, wherein the improvement includes providing the aqueous solution at a pH between about si and about eight, and adding to the admixture the acid-forming co-monomer and the acid scavenger at relative rates effective to maintain the pH of the admixture between about six and about eight. The catalyst may be added in a molar ratio to the first monomer effective to provide a predetermined weight-average or number-average molecular weight for the resulting polymer.Type: GrantFiled: June 29, 1998Date of Patent: March 19, 2002Assignee: Integra LifeSciences I, Ltd.Inventors: John E. Kemnitzer, George L. Brode, Joachim B. Kohn
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Publication number: 20020026014Abstract: Perfluoroelastomer compositions comprising perfluoroelastomers having copolymerized units of tetrafluoroethylene, a perfluoro(vinyl ether), and a nitrile-containing cure site monomer are cured with certain nitrogen-containing nucleophilic compounds. The nucleophilic compounds also act as dual curatives in perfluoroelastomer compositions which incorporate other curing agents.Type: ApplicationFiled: February 6, 2001Publication date: February 28, 2002Inventors: Christopher J. Bish, Peter A. Morken, Walter W. Schmiegel
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Publication number: 20010041764Abstract: Adhesives comprising as binder an aqueous dispersion of a polymer formed from free-radically polymerizable compounds (monomers), wherein from 0.1 to 20% by weight of the monomers, based on the overall amount of the monomers, are ethylenically unsaturated acids at least 20 mol % of whose acid groups are present as a salt of at least divalent metals.Type: ApplicationFiled: August 25, 1999Publication date: November 15, 2001Inventors: SABINE KIELHORN-BAYER, BURKHARDT DAMES, KARL-HEINZ SCHUMACHER
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Patent number: 6313232Abstract: A method of continuously polymerizing a conjugated diene monomer and a vinyl aromatic hydrocarbon monomer in a hydrocarbon solvent by using an organolithium initiator, adding to the polymerization mixture a tin compound and again adding a tin compound after the polymerization mixture has been withdrawn from the polymerization vessel. The resulting diene polymers possess a significantly reduced Payne Effect and a substantial reduction (over 10%) in tan delta at 50° C. which results in tires having decreased hysteresis loss, excellent wear resistance and rolling resistance and good wet skid resistance.Type: GrantFiled: June 3, 1999Date of Patent: November 6, 2001Assignee: Bridgestone CorporationInventors: David M. Roggeman, Daniel F. Graves, William J. Kern, Yasuo Horikawa
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Patent number: 6290866Abstract: An aqueous leather coating composition and a method for coating leather with the aqueous coating composition are provided. The aqueous coating composition contains an aqueous emulsion polymer which includes from 0.4% to 10% by weight of a copolymerized acetoacetate or acetoacetamide monomer and has a glass transition temperature from −20° C. to 10° C. In an alternative embodiment the aqueous coating composition contains an aqueous emulsion polymer which includes from 0.1% to 6% by weight of a copolymerized acetoacetate or acetoacetamide monomer and from 2% to 15% by weight of copolymerized carboxylic acid monomer and has a glass transition temperature from −40° C. to 0° C., the polymer having been contacted with a transition metal oxide, hydroxide, or carbonate at a pH less than 9 in an amount greater than 0.20 equivalent of transition metal per equivalent of copolymerized carboxylic acid monomer.Type: GrantFiled: January 10, 2000Date of Patent: September 18, 2001Assignee: Rohm and Haas CompanyInventors: Patricia Marie Lesko, Frederick James Schindler
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Patent number: 6288161Abstract: Improved oxygen barrier and oxygen absorbing compositions and structures comprising blends of xylylene group-containing polyamides and cobalt octoate and xylylene group-containing polyamides, polyesters and cobalt octoate are disclosed and claimed. These blends have superior barrier properties and clarity obtained by controlling the degree of orientation and the amount of cobalt. These novel blends are used as single layers and as the core layer in multiple layer films, structures and articles. When used in multiple layer structures, the adjacent layers are comprised of polyesters and/or polyamides. The structures made from the blends of the present invention have a clarity that is superior to structures previously known in the art.Type: GrantFiled: December 24, 1997Date of Patent: September 11, 2001Assignee: Pechiney Emballage Flexible EuropeInventors: Yong Joo Kim, Ray Germonprez, Roger L. Kaas, Atul Mehta
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Patent number: 6245860Abstract: A rubber composition which contains substantially hollow, irregularly-shaped particles, and/or fragments thereof derived from a surface-modified carbon black aggregate from the which the carbon black core has been removed. For example, an irregularly-shaped carbon black aggregate may be surface-modified to have interconnecting domains of at least one inorganic material on its surface and the carbon black core removed by an oxidation process leaving an irregularly-shaped, substantially hollow particle and/or fragments thereof of said inorganic materials. An article having a component of such rubber composition is also provided such as, for example, a tire or an industrial product.Type: GrantFiled: June 16, 1999Date of Patent: June 12, 2001Assignee: The Goodyear Tire & Rubber CompanyInventors: Thierry Florent Edmé Materne, Christian Kaes, Giorgio Agostini, Uwe Ernst Frank, Friedrich Visel
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Patent number: 6239210Abstract: Improved oxygen barrier and oxygen absorbing compositions and structures comprising blends of xylylene group-containing polyamides and cobalt octoate and xylylene group-containing polyamides, polyesters and cobalt octoate are disclosed and claimed. These blends have superior barrier properties and clarity obtained by controlling the degree of orientation and the amount of cobalt. These novel blends are used as single layers and as the core layer in multiple layer films, structures and articles. When used in multiple layer structures, the adjacent layers are comprised of polyesters and/or polyamides. The structures made from the blends of the present invention have a clarity that is superior to structures previously known in the art.Type: GrantFiled: December 3, 1999Date of Patent: May 29, 2001Assignee: Pechiney Emballage Flexible EuropeInventors: Yong Joo Kim, Ray Germonprez, Roger L. Kaas, Atul Mehta
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Patent number: 6211271Abstract: A process for producing a vulcanizable rubber composition containing silica and carbon black, comprises the step of intimately mixing at a temperature of from 130° to 180° C. at least a first cross-linkable unsaturated chain polymer with a first carbon black-based reinforcing filler, so as to obtain a first rubber composition capable of allowing a subsequent effective dispersion of a second silica-based reinforcing filler and of a second cross-linkable unsaturated chain polymer. The rubber composition thus obtained shows a homogeneous dispersion of the reinforcing fillers, in particular of the silica-based reinforcing filler, constant physical-mechanical characteristics, and improved drawability, and is particularly suitable for the manufacture of tire treads with low rolling resistance.Type: GrantFiled: July 14, 1999Date of Patent: April 3, 2001Assignee: Pirelli Pneumatici S.p.A.Inventors: Luciano Garro, Angela Amaddeo, Roberto Pessina
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Patent number: 6197891Abstract: A process for the preparation of hydrocarbon solutions of monofunctional ether initiators of the following general structure: M—Qn—Z—O—[A(R1R2R3)] wherein M is an alkali metal selected from the group consisting of lithium, sodium and potassium; Q is a saturated or unsaturated hydrocarbyl group derived by incorporation of a compound selected from the group consisting of conjugated diene hydrocarbons, alkenylsubstituted aromatic hydrocarbons, and mixtures thereof into the M—Z linkage; Z is a branched or straight chain hydrocarbon group which contains 3-25 carbon atoms, optionally containing aryl or substituted aryl groups; A is an element selected from carbon and silicon; R1, R2, and R3 are independently selected from hydrogen, alkyl, substituted alkyl groups containing lower alkyl, lower alkylthio, and lower dialkylamino groups, aryl or substituted aryl groups containing lower alkyl, lower alkylthio, and lower dialkylamino groups, and n is an integer from 1 to 5, monofType: GrantFiled: September 26, 1996Date of Patent: March 6, 2001Assignee: FMC CorporationInventors: James Anthony Schwindeman, Eric John Granger, Robert Charles Morrison, Conrad William Kamienski, Robert James Letchford
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Patent number: 6084025Abstract: A functionalized polymer prepared by a process comprising the steps of preparing a solution of a cyclic amine compound, an organolithium compound, and from 3 to about 300 equivalents, based upon one equivalent of lithium, of a monomer selected from the group including diene monomers, vinyl aromatic monomers, and mixtures thereof, where the cyclic amine compound is defined by the formula where R.sub.2 is selected from the group consisting of an alkylene, substituted alkylene, oxy- or N-alkylamino-alkylene group having from about 3 to about 16 methylene groups, N is a nitrogen atom, and H is a hydrogen atom, thereby forming a polymerization initiator having the formula where Li is a lithium atom, SOL is a divalent hydrocarbon group having from 3 to about 300 polymerized monomeric units, y is from 0.5 to about 3, and A is a cyclic amine radical derived from the cyclic amine, charging the solution containing (A)Li(SOL)y with from about 0.Type: GrantFiled: March 15, 1999Date of Patent: July 4, 2000Assignee: Bridgestone CorporationInventors: Takashi Kitamura, David F. Lawson, Koichi Morita, Yoichi Ozawa
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Patent number: 6075095Abstract: This invention discloses a process for preparing an asymmetrical tin-coupled rubbery polymer which comprises: (1) continuously polymerizing in a first reactor at least one diene monomer to a conversion of at least about 90 percent, utilizing an anionic initiator to produce a polymer cement containing living polydiene rubber chains; (2) continuously feeding the polymer cement produced in the first reactor into a second reactor; (3) adding a tin halide to the polymer cement in a second reactor under conditions of agitation to produce a polymer cement having the tin halide homogeneously dispersed therein, wherein the residence time in the second reactor is within the range of about 15 minutes to about 4 hours; (4) continuously feeding the polymer cement having the tin halide homogeneously dispersed therein into a plug flow reactor having a residence time of about 15 minutes to about 1 hour to produce a polymer cement of the asymmetrically tin-coupled rubbery polymer; and (5) continuously withdrawing the polymerType: GrantFiled: November 18, 1998Date of Patent: June 13, 2000Assignee: The Goodyear Tire & Rubber CompanyInventors: Ronald David Fiedler, Edward Lee Johnson
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Patent number: 6046288Abstract: A method for reducing the amount of aliphatic solvent needed for maintaining aminoalkyllithium initiators in solution comprising the step of combining at least one aminoalkyllithium compound with a second, dissimilar lithioamine.Type: GrantFiled: September 24, 1997Date of Patent: April 4, 2000Assignee: Bridgestone CorporationInventors: David F. Lawson, Michael L. Kerns, John R. Schreffler
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Patent number: 6025450Abstract: A functionalized polymer includes a polymer chain carrying at least one functional group selected from alkyl, dialkyl and cycloalkyl amine radicals having the general formula ##STR1## and cyclic amine radicals having the general formula ##STR2## where R.sub.1 is an alkyl, cycloalkyl or aralkyl having from 1 to about 12 carbon atoms, and R.sub.2 is an alkylene, substituted alkylene, oxy- or N-alkylamino-alkylene group having from about 3 to about 16 methylene groups. The invention also provides products based upon such polymers.Type: GrantFiled: July 9, 1998Date of Patent: February 15, 2000Assignee: Bridgestone CorporationInventors: David F. Lawson, Mark L. Stayer, Jr., David Saffles, Koichi Morita, Yoichi Ozawa, Ryota Fujio, Thomas A. Antkowiak
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Patent number: 6020441Abstract: Polymers containing ethylenically unsaturated double bonds are hydroformylated by reacting aqueous dispersions of the polymers with hydrogen and carbon monoxide in the presence of suitable hydroformylation catalysts.Also provided are the polymer dispersions obtainable by this process and the hydroformylated polymers themselves.Type: GrantFiled: May 12, 1997Date of Patent: February 1, 2000Assignee: BASF AktiengesellschaftInventors: Edgar Zeller, Hartmann F. Leube, Bernhard Schlarb, Heinz-Josef Kneuper, Michael Roper
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Patent number: 6008295Abstract: Diene polymers or copolymers having improved balance between raw polymer viscosity and mixed compound viscosity, useful in tire tread compositions having highly balanced wet traction, rolling resistance, and traction in ice and snow, and fracture properties in the cured and white carbon reinforced states are provided. These diene polymers or copolymers comprise a mixture of diene polymer or copolymer chains containing carbon-tin bonds in the main polymer or copolymer chains and diene polymer or copolymer chains containing terminals derived from hydrocarboxysilane compounds. The diene polymer or copolymers are prepared by first coupling a portion of the living diene polymer or copolymer chains obtained by anionic polymerization using a tin polyhalide coupling agent and then terminating the remaining living diene polymer or copolymer chains using hydrocarboxysilane compounds.Type: GrantFiled: July 11, 1997Date of Patent: December 28, 1999Assignee: Bridgestone CorporationInventors: Hideo Takeichi, Daniel F. Graves, Sunil B. Sarkar, David F. Lawson