Metal Oxide Patents (Class 525/372)
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Patent number: 5292794Abstract: A water washable protective coating composition for application to surfaces subjected to contact with airborne paints which composition comprises an ionomer of a copolymer of an acrylic acid and an alpha-olefin. The composition forms a protective, clear low-slip coating layer upon surfaces, and is readily removable with heated water.Type: GrantFiled: July 1, 1991Date of Patent: March 8, 1994Assignee: AlliedSignal Inc.Inventor: Michael A. Maginnis
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Patent number: 5210152Abstract: The metal oxide vulcanization of polychloroprene in the presence of amidine compounds, but in the absence of magnesium oxide, leads to vulcanizates which are capable of withstanding high temperatures, even under dynamic stress.Type: GrantFiled: December 10, 1990Date of Patent: May 11, 1993Assignee: Bayer AktiengesellschaftInventors: Rudiger Musch, Rudiger Schubart
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Patent number: 5149745Abstract: Acid-functional polymer is reacted with a transition metal compound at a temperature above a T.sub.g of the polymer to produce crosslinked polymer. The process produces a liquid polymer product that dries to a crosslinked film without the required presence of volatile ligands. Improved coatings such as floor polishes are also disclosed.Type: GrantFiled: April 23, 1991Date of Patent: September 22, 1992Assignee: Rohm and Haas CompanyInventors: Joseph M. Owens, Richard T. Gray
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Patent number: 5093434Abstract: This invention relates to compositions comprising an elastomeric material based on a styrene-butadiene-alkyl (meth) acrylate copolymer also including an ethylenically unsaturated carboxylic acid.The compositions are used for forming a sealing gasket for a container that contains an organic solvent, by crosslinking with a polyvalent metal crosslinking agent, and preferably also a vulcanizing crosslinking agent.The preferred ethylenically unsaturated carboxylic acid is itaconic acid.Type: GrantFiled: April 11, 1990Date of Patent: March 3, 1992Assignee: W. R. Grace & Co.-Conn.Inventor: Pierre-Marie Bernard
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Patent number: 5002986Abstract: This invention relates to fluid absorbent polymer compositions having the ability to absorb aqueous ionic fluids and water rapidly and efficiently. These fluid absorbent polymer compositions are prepared from fine base polymer particles which are ionically surface crosslinked and agglomerated into larger particles by the use of high energy mixing conditions. The fluid absorbent compositions of the invention find application in the preparation of absorbent articles such as diapers, sanitary napkins and incontinent devices.Type: GrantFiled: February 28, 1989Date of Patent: March 26, 1991Assignee: Hoechst Celanese CorporationInventors: Yoji Fujiura, Takashi Sumiya
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Patent number: 4987186Abstract: This invention provides a pressure sensitive adhesive composition comprising an acrylic copolymer component (A) which is at least in part an acetoacetyl group-containing acrylic copolymer and at least one curing component (B) selected from the class consisting of isocyanate compounds, epoxy compounds, aldehyde compounds, non-amino resin amine compounds, metal salts, metal alkoxides, metal chelate compounds, ammonium salts and hydrazine compounds.This adhesive composition is well-balanced in the triad of tack, adhesion, cohesion in adhesion technology and can be advantageously used in various applications such as adhesive tapes and labels.Type: GrantFiled: December 21, 1988Date of Patent: January 22, 1991Assignee: Nippon Gohsei Kagaku Kogyo Kabushiki KaishaInventors: Mamoru Akiyama, Takeshi Matsuyama, Yoshiyuki Yanagida, Akira Yamashita
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Patent number: 4985506Abstract: Oxidatively cross-linkable, water dilutable binders suitable for lacquers, coating compositions and sealing compounds are modified co-polymers of olefinically unsaturated compounds, having a molecular weight of 6000 to 160,000 and having for each 100 grams of solids content, a total of from60 to 250 milliequivalents of chemically incorporated carboxyl groups, of which from 10 to 100% are neutralized thereby rendering the product dilutable in water andfrom 15 to 50% by weight of chemically incorporated moieties corresponding to the formula--O--RwhereinR represents an olefinically monounsaturated or polyunsaturated aliphatic hydrocarbon having a molecular weight above 166 and containing from 12 to 22 carbon atoms, are prepared by:(a) preparing a co-polymer having a molecular weight from 5000 to 80,000, determined by gel permeation chromatography, and having intramolecular carboxylic acid anhydride units corresponding to the formula ##STR1## and an anhydride equivalent weight of from 240 to 1960 by a radically iType: GrantFiled: June 26, 1989Date of Patent: January 15, 1991Assignee: Bayer AktiengesellschaftInventors: Harald Blum, Peter Hohlein, Michael Sonntag, Wolfgang Wellner
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Patent number: 4943614Abstract: A coating composition comprising a fluorine-containing copolymer obtained by copolymerizing a fluoroolefin, an N-vinyl-lactam, a monomer having a cross-linkable functional group and other monomers copolymerizable therewith in a proportion of from 30 to 70 mol%, from 5 to 68 mol%, from 2 to 40 mol% and from 0 to 63 mol%, respectively.Type: GrantFiled: October 20, 1988Date of Patent: July 24, 1990Assignee: Asahi Glass Company Ltd.Inventors: Nobuyuki Miyazaki, Masao Unoki, Seiji Munekata
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Patent number: 4929686Abstract: A fluorine-containing elastomer composition comprising a fluorine-containing elastomer, at least one of oxide and hydroxide of divalent metal, a polyhydroxyaromatic compound, and a quaternary ammonium salt compound represented by the general formula: ##STR1## wherein R' is a piperidino or a pyrrolidinyl radical, and if desired, further containing 1,8-diazabicyclo-[5,4,0]-undec-7-ene or 1,5-diazabicyclo[4,3,0]-non-5-ene, has good storage stability as green elastomer composition and gives distinguished physical properties to the vulcanized products.Type: GrantFiled: February 23, 1989Date of Patent: May 29, 1990Assignee: Nippon Mektron Ltd.Inventors: Takehiro Sonoi, Okimasa Yamada
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Patent number: 4835221Abstract: Polymers and copolymers of conjugated dienes and aromatic vinyl compound which have a carboxyl end group and are present as salts, the salts containing metal cations or metal cation complexes which are bivalent or polyvallent and also a process for preparing such salts of polymers which contain carboxyl end groups and their use for modifying thermoplastic materials or as vulcanizable materials.Type: GrantFiled: October 17, 1986Date of Patent: May 30, 1989Assignee: BASF AktiengesellschaftInventors: Klaus Bronstert, Wolfgang F. Mueller
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Patent number: 4820609Abstract: A highly sensitive positive resist mixture which comprises a resist having a carboxyl group at the side chain and which is decomposable by high energy rays constituted by a polymer having the formula I ##STR1## where R.sub.1, R.sub.2, . . . R.sub.n represent alkyl groups, halogenated alkyl groups, or aryl groups having five or fewer carbon atoms, or --COORa or --CORb (where Ra and Rb are alkyl groups or halogenated alkyl or aryl groups having five or fewer carbon atoms), and when ##EQU1## m.sub.c /M is in the range of 0.01 to 1.0 and m.sub.1 /M, m.sub.2 /M, . . . m.sub.n /M are respectively in the range of 0.99 to 0, and an additive selected from the group consisting of oxides, halides and organic acid salts of bivalent metals.Type: GrantFiled: June 25, 1987Date of Patent: April 11, 1989Assignee: Nippon Telegraph and Telephone CorporationInventors: Kazumi Iwadate, Katsuhiro Harada
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Patent number: 4812525Abstract: A rubber composition is disclosed which contains, as a rubber component, 20-100% by weight of (A) polybutadiene polymerized by using a lithium initiator and 80 to 0% by weight of (B) another rubber component. The polybutadiene has the following physical properties (i)-(v):(i) The molecular weight distribution of Mw/Mn is 1.4 to 3.0 in which Mw and Mn are a weight average molecular weight and a number average molecular weight, respectively;(ii) A polymer component having the molecular weight being not more than 10.sup.5 when calculated as polystyrene is from 7 to 25%;(iii) The content of bound vinyl groups is from 10 to 25%;(iv) The content of tin atoms bonded to the polymer by tin-carbon bonds is not less than 50 ppm;(v) Mooney viscosity (ML.sub.1+4, 100.degree. C.) is from 20 to 70.Type: GrantFiled: July 16, 1987Date of Patent: March 14, 1989Assignees: Japan Synthetic Rubber Co., Ltd., Bridgestone CorporationInventors: Noboru Oshima, Yoshishige Chikatsu, Toshiaki Fukuhori, Tatsuro Hamada, Tatsuo Fujimaki
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Patent number: 4771105Abstract: A water-absorbent resin of polyacrylic acid series characterized in that the resin has the crosslinked surface formed by reacting a powdery water-absorbent resin of polyacrylic acid series with an aluminum compound which can react with the powdery resin in the presence of polyhydric alcohol and water.Type: GrantFiled: February 4, 1987Date of Patent: September 13, 1988Assignee: Sekisui Kaseihin Kogyo Kabushiki KaishaInventors: Hideharu Shirai, Fumito Yamai, Setsuo Inada, Hisashi Ike, Yoshifumi Nakahara
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Patent number: 4767804Abstract: The invention provides a polymer derivative comprising the reaction product of a metal compound and a polymer having functional groups. The metal compound may be an acetate, carbonate, chloride, hydroxide, oxalate, oxide or sulphate of Al, Ba, Ca, Ce, Cd, Co, Cr, Cu, Fe, Hg, K, Li, Mg, Mn, Mo, Na, Pb, Sn, Ti, V, Zn and Zr. The functional group may be a carboxylic acid group, a thiol group or an olefinic group.The invention includes a process for efficiently reacting a functional group on a polymer with at least one co-reagent wherein the co-reagents are rendered compatible with the polymer, for example by being dissolved in the polymer or in a solution thereof whereby the reaction is effected in a single phase. The process may be a two stage process which comprises forming a metal derivative of a polymer of relatively low molecular weight and then incorporating the metal derivative into a polymer of higher molecular weight.Type: GrantFiled: September 4, 1986Date of Patent: August 30, 1988Assignee: Rubber Bands and Plastic Research Association of Great BritainInventor: Bryan G. Willoughby
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Patent number: 4707523Abstract: Metal oxide containing polymers and particularly styrene, acrylic or protein polymers containing fine, magnetic iron oxide particles are formed by combining a NO.sub.2 -substituted polymer with an acid such as hydrochloric acid in the presence of metal, particularly iron particles. The iron is oxidized to fine, black Fe.sub.3 O.sub.4 particles which deposit selectively on the polymer particles. Nitrated polymers are formed by reacting functionally substituted, nitrated organic compounds such as trinitrobenzene sulfonate or dinitrofluoro benzene with a functionally coreactive polymer such as an amine modified acrylic polymer or a protein. Other transition metals such as cobalt can also be incorporated into polymers using this method.Type: GrantFiled: October 11, 1985Date of Patent: November 17, 1987Assignee: California Institute of TechnologyInventors: Manchium Chang, Michael S. Colvin, Alan Rembaum, Gil F. Richards
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Patent number: 4489196Abstract: A curable fluoropolymer composition containing a copolymer of vinylidene fluoride and hexafluoropropylene or the like, a vulcanization accelerator which is a quaternary ammonium compound or a quaternary phosphonium compound, a crosslinking agent such as a bisphenol, a divalent metal oxide or divalent metal hydroxide acid acceptor, and as a coaccelerator a polyol e.g. pentaerythritol or the like.Type: GrantFiled: April 26, 1983Date of Patent: December 18, 1984Assignee: E. I. Du Pont de Nemours and CompanyInventor: Walter W. Schmiegel
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Patent number: 4447583Abstract: Increasing the electrical conductivity of polyacetylene by partial oxidation (doping) with a compound of trivalent iron or of trivalent cobalt.Type: GrantFiled: June 10, 1982Date of Patent: May 8, 1984Assignee: Bayer AktiengesellschaftInventors: Jurgen Hocker, Rolf Dhein, Rudolf Merten
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Patent number: 4376190Abstract: Complex compositions that comprise a cation guest and a polymer host are provided. The polymer host contains one or more cation-complexing segments that contain hetero atoms in a polydentate complexing array. At least two of the hetero atoms in the cation complexing segment comprise a cyclic ether selected from tetrahydrofuran 2,5-diyl units and tetrahydropyran 2,6-diyl units.Type: GrantFiled: November 26, 1979Date of Patent: March 8, 1983Assignee: Minnesota Mining and Manufacturing CompanyInventors: William J. Schultz, Margaret C. Etter, Alphonsus V. Pocius, Samuel Smith
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Patent number: 4336685Abstract: Anti-static polymeric films, fibers and textile yarn produced by process comprising admixing a branched chain, sulfur-containing polyester with a synthetic film- or fiber-forming polymer, extruding said film or textile fiber, and exposing said film or textile fiber to an aqueous solution containing a polyvalent metal ion reactive with the sulfate groups present in said sulfur-containing polyester. The sulfur-containing polyester is thereby fixed within the synthetic film or fiber and is resistant to extraction by water or commonly used dry cleaning solvents.Type: GrantFiled: March 30, 1981Date of Patent: June 29, 1982Assignee: BASF Wyandotte CorporationInventor: Stephen E. Eisenstein
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Patent number: 4288575Abstract: A heterogeneous catalytic process for dehydrohalogenating allylically halogenated olefinic hydrocarbon polymers to produce conjugated diene unsaturated polymeric products is disclosed comprising employing certain metal containing catalyst compositions, especially activated alumina supported copper containing catalysts. The process is especially suitable for the preparation of conjugated diene butyl elastomers from halogenated butyl rubber and produces products having relatively high reactivity levels in terms of active diene content.Type: GrantFiled: September 17, 1979Date of Patent: September 8, 1981Assignee: Exxon Research & Engineering Co.Inventor: Irwin J. Gardner
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Patent number: 4211855Abstract: A heterogeneous catalytic process for dehydrohalogenating allylically halogenated olefinic hydrocarbon polymers to produce conjugated diene unsaturated polymeric products is disclosed comprising employing certain metal containing catalyst compositions, especially activated alumina supported copper containing catalysts. The process is especially suitable for the preparation of conjugated diene butyl elastomers from halogenated butyl rubber and produces products having relatively high reactivity levels in terms of active diene content.Type: GrantFiled: December 4, 1978Date of Patent: July 8, 1980Assignee: Exxon Research & Engineering Co.Inventor: Irwin J. Gardner
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Patent number: 4185831Abstract: This invention is directed to a composition for use as a material for the outer layer of a golf ball, which composition is produced by the reaction of an ionomer resin with a monoepoxy compound. The golf ball having the outer layer of such composition can be driven for a long distance with a soft shot feeling.Type: GrantFiled: August 3, 1978Date of Patent: January 29, 1980Assignee: Sumitomo Rubber Industries, Ltd.Inventor: Ichiro Tominaga
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Patent number: 4166892Abstract: A process for vulcanizing a rubber base comprising at least one halogen-containing amorphous polymer at a low temperature ranging from 5.degree. to 85.degree. C., which comprises carrying out the vulcanization in the presence of 0.01 to 20 parts by weight of an organic hydroperoxide and/or ketone peroxide per 100 parts by weight of the rubber base.In the above process, at least one member selected from the group consisting of (I) the oxides of metals, such as zinc, lead, chromium, cobalt, nickel, magnesium, manganese, copper and iron, or the metallic salts of said metals with aliphatic or cycloaliphatic carboxylic acid having 8 to 24 carbon atoms; (II) methacrylic esters; (III) maleimides; and (IV) oximes, may be used as a vulcanization activator or a vulcanization accelerator in an amount of 0.01 to 20 parts by weight per 100 parts by weight of the rubber base.Type: GrantFiled: July 12, 1977Date of Patent: September 4, 1979Assignee: Sumitomo Chemical Company, LimitedInventors: Isamu Maeda, Masashi Aoshima