Elemental Metal Or Inorganic Compound Thereof Patents (Class 525/371)
  • Patent number: 5986023
    Abstract: Fluoroaluminate compounds of formula M.sup.+n (AlF.sub.4)n.sup.- wherein n is 1 to 3 and M.sup.+n is N(R.sub.2).sub.4, P(R.sub.2).sub.4, As(R.sub.2).sub.4, HN(R.sub.2).sub.3, H.sub.2 N(R.sub.2).sub.2, H.sub.3 N(R.sub.2), (R.sub.2).sub.3 P.dbd.N.dbd.P(R.sub.2).sub.3, S[N(R.sub.2).sub.2 ].sub.3, ##STR1## (R.sub.2)NCN(R).sub.2, (R).sub.2 N--(C(R).sub.2).sub.k --N(R).sub.3, and ZH.sub.m.sup.+m wherein Z is a base capable of accepting m protons, and various cyclic and aryl groups are disclosed as well as processes for their preparation.
    Type: Grant
    Filed: June 5, 1997
    Date of Patent: November 16, 1999
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Richard Leslie Harlow, Norman Herron, David Lincoln Thorn
  • Patent number: 5959041
    Abstract: A method of preparation of copolymers of 1,3-butadiene and styrene, useful for the production of tires or elastic materials, characterized by a reduced rolling resistance without detriment to other properties such as skid resistance. The copolymer is prepared using anionic polymerization of 1,3-butadiene and styrene and coupling of part of the chains in star shape with an appropriate compound of tin or silicon, terminating the remainder of the linear chains without coupling using an appropriately selected different compound. The presence of these linear chains terminated with tin yields a beneficial effect in the reduction of rolling resistance when said product is used in tire formulations. The invention also concerns the copolymers of 1,3-butadiene and styrene obtained by said method.
    Type: Grant
    Filed: August 19, 1998
    Date of Patent: September 28, 1999
    Assignee: Repsol Quimica S.A.
    Inventors: Valentin Ruiz Santa Quiteria, Juan Antonio Delgado Oyague, Luisa Fraga Trillo, Carmen Sierra Escudero
  • Patent number: 5959048
    Abstract: An acyclic alkane soluble anionic polymerization initiator includes a mixture of from about 90 to about 10 parts by weight of a lithio amine having the general formula A.sub.1 Li and from about 10 to about 90 parts by weight of at least one other lithio amine having the general formula A.sub.2 Li. A.sub.1 and A.sub.2 are selected from the dialkyl, alkyl, cycloalkyl and dicycloalkyl amine radicals and cyclic amine radicals. There is also provided a method of forming a mixture of anionic polymerization initiators, a functionalized polymer and a method of forming a functionalized polymer.
    Type: Grant
    Filed: July 1, 1997
    Date of Patent: September 28, 1999
    Assignee: Bridgestone Corporation
    Inventors: David F. Lawson, James E. Hall, Yoichi Ozawa
  • Patent number: 5958194
    Abstract: A soft or rigid gas permeable silicon elastomer contact lens bonded with either titanium, titanium monoxide, titanium dioxide, dititanium trioxide, trititanium pentoxide, and mixtures thereof to form contact lens having high oxygen permeability, improved wetting ability, decreased fogging ability, an enhanced self-cleaning characteristic, and decreased transmissibility to ultraviolet radiation. Preferred methods of incorporating the additives is by cationic polymerization of either a coating of or in situ bonding to a silicon polymer resulting in the expression of the additive toward the exterior surface of the chemical matrix of the contact lens. Other bonding methods are electron beam evaporation., sputtering and ion implantation of the titanium additive.
    Type: Grant
    Filed: September 18, 1997
    Date of Patent: September 28, 1999
    Inventor: Alan N. Glazier
  • Patent number: 5955527
    Abstract: The present invention provides a wall for a package, which wall comprises, or includes a layer comprising, a composition comprising a polymer and capable of scavenging oxygen through the metal-catalyzed oxidation of an oxidizable organic component thereof. The oxidizable organic component is preferably itself a polymer, and may be the only polymer in the composition. Preferred compositions include a blend of 96% polyethylene terephthalate and 4% poly (m-xylyleneadipamide) containing 200 ppm cobalt as catalyst, with good permeance-versus-time performance (3) when formed into a bottle.
    Type: Grant
    Filed: April 18, 1997
    Date of Patent: September 21, 1999
    Assignee: CarnaudMetalbox plc
    Inventors: Michael Alexander Cochran, Rickworth Folland, James William Nicholas, Melvin Edward Riddell Robinson
  • Patent number: 5945486
    Abstract: Fluoropolymeric substrates with metallized surfaces may be prepared by self-assembly of a chemisorbed layer of a metal ion-chelating organosilane onto a fluoropolymer surface after radio-frequency glow discharge plasma surface hydroxylation. The silane covalently binds an aqueous palladium catalyst and subsequent electroless deposition yields homogeneous or patterned metal deposits that exhibit excellent adhesion to the fluoropolymer.
    Type: Grant
    Filed: September 29, 1997
    Date of Patent: August 31, 1999
    Assignees: Geo-Centers, Inc., The United States of America as represented by the Secretary of the Navy
    Inventors: Terrence G. Vargo, Jeffrey M. Calvert, Joseph A. Gardella, Jr., Mu-San Chen
  • Patent number: 5936029
    Abstract: The present invention provides a method of anionic synthesis of stable macrocyclic polymers that are compounded to form vulcanizable elastomeric compounds exhibiting reduced hysteresis properties. Cyclic organometallic compounds containing divalent metal atoms of Groups IIA and IIB of the Periodic System are employed as initiators of anionic polymerization of conjugated diene, vinyl aromatic and/or triene monomers. Coupling of the living ends of the resulting macrocyclic polymers or copolymers with a coupling agent or a coupling agent that is also a functionalizing agent results in stable macrocyclic polymers with improved hysteresis properties.
    Type: Grant
    Filed: September 29, 1997
    Date of Patent: August 10, 1999
    Assignee: Bridgestone Corporation
    Inventor: James E. Hall
  • Patent number: 5916961
    Abstract: The reduction of hysteresis in a silica-filled, vulcanized elastomeric compound is produced by mixing diene monomer and optionally monovinyl aromatic monomer with a lithium amine initiator and, optionally, a modifier; effecting polymerization conditions; terminating polymerization with an amino group producing terminator to form an amine functionalized diene elastomer; compounding the amine functionalized diene elastomer with an amorphous silica filler and a vulcanization agent; and, effecting vulcanization. A pneumatic tire tread stock incorporating the vulcanized elastomer compound exhibits decreased rolling resistance in the tire.
    Type: Grant
    Filed: July 11, 1997
    Date of Patent: June 29, 1999
    Assignee: Bridgestone Corporation
    Inventors: William L. Hergenrother, Thomas J. Lynch
  • Patent number: 5891956
    Abstract: Water-soluble polymers including functionalization from the group of amino groups, carboxylic acid groups, phosphonic acid groups, phosphonic ester groups, acylpyrazolone groups, hydroxamic acid groups, aza crown ether groups, oxy crown ethers groups, guanidinium groups, amide groups, ester groups, aminodicarboxylic groups, permethylated polyvinylpyridine groups, permethylated amine groups, mercaptosuccinic acid groups, alkyl thiol groups, and N-alkylthiourea groups are disclosed.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: April 6, 1999
    Assignee: The Regents of the University of California, Office of Technology Transfer
    Inventors: Barbara F. Smith, Thomas W. Robison, Joel W. Gohdes
  • Patent number: 5883183
    Abstract: The present invention is directed toward anionic polymerization employing lithio amines mixed with an organic alkali metal compound and optionally, a chelating reagent. The lithio amines have the general formula (A)Li(SOL)y, where SOL is a solubilizing component, A is an alkyl, dialkyl, cycloalkyl or dicycloalkyl amine radical or a cyclic amine, and y is 0 or is from about 0.5 to about 3. The invention is also directed toward polymers and other products made using the initiator, and methods therefor. Further, the invention contemplates a polymer, a polymer composition and products therefrom, which include a functional group from the reaction product of an amine and an organolithium compound. The resulting polymers may be terminated with a terminating, coupling or linking agent, which may provide the polymer with a multifunctionality.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: March 16, 1999
    Assignee: Bridgestone Corporation
    Inventors: Takashi Kitamura, David F. Lawson, Koichi Morita, Yoichi Ozawa
  • Patent number: 5877225
    Abstract: A method of reducing the volume of a mixture of filter fibers and a powder-form ion-exchange resin, produces a waste product that is particularly suitable for ultimate disposal. A solvent which dissolves the filter fibers is added to the mixture and a mixture which is thus formed is first dried and then given an additional heat treatment.
    Type: Grant
    Filed: December 16, 1996
    Date of Patent: March 2, 1999
    Assignee: Siemens Aktiengesellschaft
    Inventors: Klaus Blinn, Karl-Heinz Kleinschroth, Dietmar Bege
  • Patent number: 5866650
    Abstract: The reduction of hysteresis in a silica-filled, vulcanized elastomeric compound is produced by mixing diene monomer and optionally monovinyl aromatic monomer with a lithium amine initiator and, optionally, a modifier; effecting polymerization conditions; terminating polymerization with an amino group producing terminator to form an amine functionalized diene elastomer; compounding the amine functionalized diene elastomer with an amorphous silica filler and a vulcanization agent; and, effecting vulcanization. A pneumatic tire tread stock incorporating the vulcanized elastomer compound exhibits improved reduced hysteresis, or highly balanced wet traction, rolling resistance, snow/ice traction, and mechanical strength when compounded with silica filler and vulcanized, in the tire.
    Type: Grant
    Filed: July 11, 1997
    Date of Patent: February 2, 1999
    Assignee: Bridgestone Corporation
    Inventors: David F. Lawson, Hideo Takeichi, William L. Hergenrother, Thomas J. Lynch, James Oziomek
  • Patent number: 5859145
    Abstract: Disclosed is a process for esterifying and/or transesterifying a polymer having a polyethylenic backbone and pendant acid and/or ester moieties comprising contacting a melt of the polymer with a transesterifying compound so that the polymer undergoes esterification and/or transesterification but not alcoholysis. The esterified or transesterified polymer also has pendant ester moieties which differ in kind and/or number from the unreacted polymer. In one embodiment, the process also comprises adding an amount of a transition metal salt that is effective to promote oxygen scavenging. Also in a further embodiment, the process comprises irradiating the transesterified polymer with actinic radiation to reduce the induction period before oxygen scavenging commences. Also disclosed are compositions comprising a component which comprises an ethylenic or polyethylenic backbone and a pendant or terminal moiety comprising a benzylic, allylic, or ether-containing radical.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: January 12, 1999
    Assignee: Chevron Chemical Company
    Inventors: Ta Yen Ching, Kiyoshi Katsumoto, Steven P. Current, Leslie P. Theard
  • Patent number: 5814706
    Abstract: Novel terpolymers are disclosed which comprise the reaction product of a high molecular weight olefin, such as polybutene or polypropylene, with an unsaturated acid reactant, such as maleic anhydride and a di-or polyunsaturated reactant. The terpolymers are useful as dispersants in lubricating oils and fuels and are also used to prepared polysuccinimides and other post-treated additives useful in lubricating oils and fuels.
    Type: Grant
    Filed: December 23, 1997
    Date of Patent: September 29, 1998
    Assignee: Ethyl Corporation
    Inventors: Daniel Y. F. Yu, Carl A. Mike
  • Patent number: 5804236
    Abstract: A container composed of a polymer material integrated with an oxygen scavenging agent is disclosed that is suitable for oxygen sensitive contents. The novel container is capable of scavenging excess oxygen from the enclosed atmosphere of the container without substantially modifying the design of similar container. The container includes at least one layer composed of a polymer material integrated with an oxygen scavenging agent between 0.01 and 1.0% weight of the entire container. The oxygen scavenging layer only surrounds the atmosphere of the container while the rest of the container has an unmodified layer of the same polymer material. In most container configurations, the modified layer would be the neck portion of the container. The polymer material may be selected from polyethylene terephthalate, a copolymer of polyethylene terephthalate and a mixture thereof. The oxygen scavenging agent may be selected from iron based compounds, organic compounds and biologically active compounds.
    Type: Grant
    Filed: September 26, 1996
    Date of Patent: September 8, 1998
    Inventor: Peter Frisk
  • Patent number: 5798419
    Abstract: A method of preparation of copolymers of 1,3-butadiene and styrene, useful for the production of tires or elastic materials, characterized by a reduced rolling resistance without detriment to other properties such as skid resistance. The copolymer is prepared using anionic polymerization of 1,3-butadiene and styrene and coupling of part of the chains in star shape with an appropriate compound of tin or silicon, terminating the remainder of the linear chains without coupling using an appropriately selected different compound. The presence of these linear chains terminated with tin yields a beneficial effect in the reduction of rolling resistance when said product is used in tire formulations. The invention also concerns the copolymers of 1,3-butadiene and styrene obtained by said method.
    Type: Grant
    Filed: July 15, 1996
    Date of Patent: August 25, 1998
    Assignee: Repsol Quimica S.A.
    Inventors: Valentin Ruiz Santa Quiteria, Juan Antonio Delgado Oyague, Luisa Fraga Trillo, Carmen Sierra Escudero
  • Patent number: 5798320
    Abstract: A method of formulating a zirconium lactate compound is accomplished by combining in solution lactic acid or a lactate salt with zirconium carbonate. The reacting solution forms zirconium lactate and carbon dioxide which is evolved as a gas from the solution. This eliminates the need to filter or wash the zirconium lactate in order to remove undesirable by-products. The zirconium lactate can be used as a crosslinking agent for crosslinking aqueous polymer gels used in such things as fracturing fluids for fracturing subterranean formations of oil and gas wells.
    Type: Grant
    Filed: September 29, 1997
    Date of Patent: August 25, 1998
    Assignee: BJ Services Company
    Inventors: Jeffrey C. Dawson, Hoang Van Le
  • Patent number: 5780554
    Abstract: A saturated polymer having a terminal aldehyde or hydroxy substituent which may be used directly or in a derivative form as a dispersant for both fuel and lubricating oil compositions, wherein the saturated polymer has a M.sub.n of about 300 to 10,000, and is derived from a polyolefin which is derived from a monomer of the formula H.sub.2 C.dbd.CHR.sup.4, wherein R.sup.4 is hydrogen or a straight or branched chain alkyl radical, and wherein the polyolefin has at least about 30% terminal vinylidene unsaturation. Particularly desirable amine derivatives can be formed by either a single step aminomethylation process or a two step hydroformylation and reductive amination process.
    Type: Grant
    Filed: November 1, 1996
    Date of Patent: July 14, 1998
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Jacob Emert, Istvan T. Horvath, Richard H. Schlosberg, Warren A. Thaler, David A. Young, Stephen Zushma
  • Patent number: 5753779
    Abstract: An aqueous chromium-free coating preparation for the protection of a metal substrate against corrosion and attack by moisture comprises an acrylic acid or derivative thereof as binder and also a crosslinking system which comprises at least one hydroxide of a divalent metal ion and an amine compound. The acrylic acid:crosslinking system ratio is generally 1.5-4:2-4. The crosslinking system may comprise other monofunctional or polyfunctional compounds. Various constituents of the crosslinking system can be interchanged within certain margins.
    Type: Grant
    Filed: March 28, 1996
    Date of Patent: May 19, 1998
    Assignee: ADW Chemical Products B.V.
    Inventor: Johannes J.H. Verberg
  • Patent number: 5723533
    Abstract: An acyclic alkane soluble anionic polymerization initiator includes a mixture of from about 90 to about 10 parts by weight of a lithio amine having the general formula A.sub.1 Li and from about 10 to about 90 parts by weight of at least one other lithio amine having the general formula A.sub.2 Li. A.sub.1 and A.sub.2 are selected from the dialkyl, alkyl, cycloalkyl and dicycloalkyl amine radicals and cyclic amine radicals. There is also provided a method of forming a mixture of anionic polymerization initiators, a functionalized polymer and a method of forming a functionalized polymer.
    Type: Grant
    Filed: November 26, 1996
    Date of Patent: March 3, 1998
    Assignee: Bridgestone Corporation
    Inventors: David F. Lawson, James E. Hall, Yoichi Ozawa
  • Patent number: 5721331
    Abstract: An isobutylene-based polymer as a polymer of cationically polymerizable monomers principally composed of isobutylene or a combination of isobutylene and a styrene-series monomer, generates a molded article with outstanding properties, the isobutylene-based polymer characteristically satisfying the following provisions;1. the isobutylene-based polymer has a substantially continuos molecular weight distribution on a gel-permeation chromatogram;2. the molecular weight at the highest peak on a gel-permeation chromatogram is within a range of 10,000 to 500,000; and3. the length (a) of the elution time in the lower molecular region of the mountain from the highest peak and the length (b) of the elution time in the higher molecular region of the mountain from the highest peak on a gel-permeation chromatogram, satisfy the provision represented by the formula (b)/(a).gtoreq.1.3.
    Type: Grant
    Filed: March 5, 1996
    Date of Patent: February 24, 1998
    Assignee: Kuraray Co., Ltd.
    Inventors: Kenji Shachi, Satoshi Kajiya, Kazushige Ishiura
  • Patent number: 5708092
    Abstract: A process for the preparation of hydrocarbon solutions of monofunctional ether initiators of the following general structure:M--Q.sub.n --Z--OA(R.sup.1 R.sup.2 R.sup.3)wherein M is defined as 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 and alkenylsubstituted aromatic hydrocarbons; 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; R.sup.1, R.sup.2, and R.sup.
    Type: Grant
    Filed: April 12, 1996
    Date of Patent: January 13, 1998
    Assignee: FMC Corporation
    Inventors: James A. Schwindeman, Conrad W. Kamienski, Robert C. Morrison
  • Patent number: 5700888
    Abstract: The present invention provides a method of anionic synthesis of stable macrocyclic polymers that are compounded to form vulcanizable elastomeric compounds exhibiting reduced hysteresis properties. Cyclic organometallic compounds containing divalent metal atoms of Groups IIA and IIB of the Periodic System are employed as initiators of anionic polymerization of conjugated diene, vinyl aromatic and/or triene monomers. Coupling of the living ends of the resulting macrocyclic polymers or copolymers with a coupling agent or a coupling agent that is also a functionalizing agent results in stable macrocyclic polymers with improved hysteresis properties.
    Type: Grant
    Filed: November 10, 1996
    Date of Patent: December 23, 1997
    Assignee: Bridgestone Corporation
    Inventor: James E. Hall
  • Patent number: 5696207
    Abstract: Fluoropolymeric substrates with metallized surfaces may be prepared by self-assembly of a chemisorbed layer of a metal ion-chelating organosilane onto a fluoropolymer surface after radio-frequency glow discharge plasma surface hydroxylation. The silane covalently binds an aqueous palladium catalyst and subsequent electroless deposition yields homogeneous or patterned metal deposits that exhibit excellent adhesion to the fluoropolymer.
    Type: Grant
    Filed: September 3, 1996
    Date of Patent: December 9, 1997
    Assignees: Geo-Centers, Inc., The United States of America as represented by the Secretary of the Navy
    Inventors: Terrence G. Vargo, Jeffrey M. Calvert, Joseph A. Gardella, Jr., Mu-San Chen
  • Patent number: 5695908
    Abstract: There are disclosed a process for preparing a printing plate which comprises the steps of providing, on a support, a layer containing a water-soluble polymer which becomes water-insoluble by a metal ion, and feeding the metal ion imagewisely from the surface of the layer to form an image pattern comprising the hardened water-soluble polymer on the support, anda plate for preparing a printing plate which comprises a support and a layer containing a water-soluble polymer which becomes water-insoluble in contact with a metal ion provided on the surface of the support.
    Type: Grant
    Filed: December 22, 1995
    Date of Patent: December 9, 1997
    Assignee: Mitsubishi Paper Mills, Limited
    Inventor: Akira Furukawa
  • Patent number: 5677399
    Abstract: The invention is a practical process for anionically synthesizing commercially significant quantities of macrocyclic polymers from polar and/or non-polar monomers by using Group IIA and IIB metal cyclic organometallic initiators. Activation of the ring metal atom results in anionic polymerization of the monomers by addition into the initiator ring at the bonds between the atom and its two adjacent carbon atoms, the metal atom acting as a bridge between the two living ends of the propagating chain. Coupling of the cyclic polymer living ends by coupling agents produces macrocyclic polymers that are stable in air and moisture and that exhibit desirable properties, such as low viscosities at high molecular weights. Such macrocyclic polymers provide enhanced polymer processability during molding, extruding and the forming of films.
    Type: Grant
    Filed: November 7, 1996
    Date of Patent: October 14, 1997
    Assignee: Bridgestone Corporation
    Inventor: James E. Hall
  • Patent number: 5665827
    Abstract: The invention is a practical process for anionically synthesizing multiblock polymers containing a plurality of blocks formed from polar and/or non-polar monomers by using a cyclic organometallic compound initiator that comprises a divalent metal atom and an organic moiety contained in a ring, preferably a cycloorganomagnesium initiator. Activation of the ring metallic atom results in anionic polymerization of the monomers by addition into the initiator ring at the bonds between the metallic atom and its two adjacent carbon atoms, the metallic atom acting as a bridge between the two living ends of the propagating chain. The active chain ends can be coupled or terminated.
    Type: Grant
    Filed: November 7, 1996
    Date of Patent: September 9, 1997
    Assignee: Bridgestone Corporation
    Inventor: James E. Hall
  • Patent number: 5654371
    Abstract: A process for the preparation of hydrocarbon solutions of monofunctional ether initiators of the following general structure:M--Q.sub.n --Z--OA(R.sup.1 R.sup.2 R.sup.3) (II)wherein M is defined as 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 and alkenylsubstituted aromatic hydrocarbons; Z is defined as a branched or straight chain hydrocarbon tether or connecting group which contains 3-25 carbon atoms, optionally containing aryl or substituted aryl groups; A is an element selected from Group IVa of the periodic table and R.sup.1, R.sup.2, and R.sup.3 are independently selected from hydrogen, alkyl, substituted alkyl, aryl or substituted aryl groups, and n is an integer from 1 to 5.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: August 5, 1997
    Assignee: FMC Corporation
    Inventors: James A. Schwindeman, Conrad W. Kamienski, Robert C. Morrison
  • Patent number: 5637641
    Abstract: The compositions of this invention comprise uncrosslinked reaction mixtures comprising (1) at least one organic monomer, oligomer or polymer comprising a multiplicity of organic, electrophilic substituents, and (2) at least one metal-containing polymer comprising a metal-nitrogen polymer.Preferred compositions of this invention comprise reaction mixtures comprising (1) at least one organic monomer, oligomer or polymer comprising a multiplicity of organic, electrophilic substituents, and (2) at least one of: silicon-nitrogen polymers, aluminum-nitrogen polymers and boron-nitrogen and polymer combinations thereof comprising a multiplicity of sequentially bonded repeat units the compositions comprising the reaction products of the reaction mixtures, and the compositions obtained by crosslinking the reaction products of the reaction mixtures. The crosslinking may be effected through at least one of thermal-based, radiation-based free radical-based or ionic-based crosslinking mechanisms.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: June 10, 1997
    Assignee: Lanxide Technology Company, LP
    Inventors: Kurt J. Becker, James A. Jensen, Alexander Lukacs, III
  • Patent number: 5629386
    Abstract: A process is provided for the halomethylation of the aromatic groups in an isoolefin-vinylidene aromatic monomer polymer by the in situ generation of the halomethylating species formed by the reaction of a methoxy alkoxy methane with a thionyl halide, the halomethylation of the polymer being catalyzed by a Lewis acid.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: May 13, 1997
    Assignee: Bayer Rubber Inc.
    Inventor: Akhtar Osman
  • Patent number: 5627239
    Abstract: Disclosed is a process for esterifying and/or transesterifying a polymer having a polyethylenic backbone and pendant acid and/or ester moieties comprising contacting a melt of the polymer with a transesterifying compound so that the polymer undergoes esterification and/or transesterification but not alcoholysis. The esterified or transesterified polymer also has pendant ester moieties which differ in kind and/or number from the unreacted polymer. In one embodiment, the process also comprises adding an amount of a transition metal salt that is effective to promote oxygen scavenging. Also in a further embodiment, the process comprises irradiating the transesterified polymer with actinic radiation to reduce the induction period before oxygen scavenging commences.Also disclosed are compositions comprising a component which comprises an ethylenic or polyethylenic backbone and a pendant or terminal moiety comprising a benzylic, allylic, or ether-containing radical.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: May 6, 1997
    Assignee: Chevron Chemical Company
    Inventors: Ta Y. Ching, Kiyoshi Katsumoto, Steven P. Current, Leslie P. Theard
  • Patent number: 5625017
    Abstract: A process for preparing a polymer comprises polymerizing a conjugated diene monomer and/or a vinylaromatic hydrocarbon monomer in a hydrocarbon solvent in the presence of or in the absence of a randomizer by using a lithium polymerization initiator which is formed by bringing an organolithium compound and at least one secondary amine compound into contact with each other in the polymerization system in the presence of at least said monomer, wherein the polymerization conversion at the time of contact is less than 5%. The secondary amine is an amine compound having two hydrocarbon groups bonded to N or an imine compound in which an NH group and a saturated or unsaturated cyclic structure group form a cyclic structure. The cyclic structure group comprises a hydrocarbon group as the ring member and may also comprise N or O.
    Type: Grant
    Filed: September 21, 1995
    Date of Patent: April 29, 1997
    Assignee: Bridgestone Corporation
    Inventors: Koichi Morita, Atsushi Nakayama, Yoichi Ozawa, Ryota Fujio
  • Patent number: 5616650
    Abstract: The compositions of this invention comprise uncrosslinked reaction mixtures comprising (1) at least one organic monomer, oligomer or polymer comprising a multiplicity of organic, electrophilic substituents, and (2) at least one metal-containing polymer comprising a metal-nitrogen polymer.Preferred compositions of this invention comprise reaction mixtures comprising (1) at least one organic monomer, oligomer or polymer comprising a multiplicity of organic, electrophilic substituents, and (2) at least one of: silicon-nitrogen polymers, aluminum-nitrogen polymers and boron-nitrogen and polymer combinations thereof comprising a multiplicity of sequentially bonded repeat units the compositions comprising the reaction products of the reaction mixtures, and the compositions obtained by crosslinking the reaction products of the reaction mixtures. The crosslinking may be effected through at least one of thermal-based, radiation-based free radical-based or ionic-based crosslinking mechanisms.
    Type: Grant
    Filed: April 5, 1994
    Date of Patent: April 1, 1997
    Assignee: Lanxide Technology Company, LP
    Inventors: Kurt J. Becker, James A. Jensen, Alexander Lukacs, III
  • Patent number: 5616653
    Abstract: The subject invention discloses a process for preparing a coupled styrene-isoprene-butadiene rubber which is particularly valuable for use in making automobile tire tread rubber compounds which comprises the steps of (1) solution terpolymerizing in an organic solvent from about 5 weight percent to about 40 weight percent styrene, from about 1 weight percent to about 10 weight percent isoprene, and from about 50 weight percent to about 94 weight percent 1,3-butadiene, based on total monomers, to a conversion of at least about 90% to produce a living styrene-isoprene-butadiene polymer, wherein the terpolymerization is initiated with an organolithium compound, and wherein the terpolymerization is conducted in the presence of a polar modifier at a molar ratio of the polar modifier to the organolithium compound, which is within the range of about 0.5:1 to about 5:1, and wherein the terpolymerization is conducted at a temperature which is within the range of about 20.degree. C. to about 150.degree. C.
    Type: Grant
    Filed: July 29, 1996
    Date of Patent: April 1, 1997
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Wen-Liang Hsu, Adel F. Halasa, Barry A. Matrana, Scott M. Christian, Laurie E. Austin, Bill B. Gross
  • Patent number: 5612421
    Abstract: Methods and compositions for pretreating a metal surface are provided. The methods comprise applying to the metal surface a hydrolysate of a copolymer of an unsaturated carboxylic acid or derivative thereof and a vinyltrialkoxysilane compound. Novel zinc salt hydrolysate compositions and zirconium salt hydrolysate compositions are also disclosed.
    Type: Grant
    Filed: March 5, 1996
    Date of Patent: March 18, 1997
    Assignee: BetzDearborn Inc.
    Inventors: Alan E. Goliaszewski, David W. Reichgott, Lothar S. Sander
  • Patent number: 5612414
    Abstract: The compositions of this invention comprise uncrosslinked reaction mixtures comprising (1) at least one organic monomer, oligomer or polymer comprising a multiplicity of organic, electrophilic substituents, and (2) at least one metal-containing polymer.Preferred compositions of this invention comprise reaction mixtures comprising (1) at least one organic monomer, oligomer or polymer comprising a multiplicity of organic, electrophilic substituents, and (2) at least one of: at least one of: a polymer selected from the group consisting of silicon-nitrogen polymers, aluminum-nitrogen polymers and boron-nitrogen polymers comprising a multiplicity of sequentially bonded repeat units.
    Type: Grant
    Filed: March 12, 1996
    Date of Patent: March 18, 1997
    Assignee: Lanxide Technology Company, LP
    Inventors: Kurt J. Becker, James A. Jensen, Alexander Lukacs, III
  • Patent number: 5610227
    Abstract: The present invention provides anionic polymerization initiators, comprising lithium amino magnesiate complexes, resulting in diene polymer and copolymer elastomers. The invention initiators have stable living ends at high polymerization temperatures and produce polymers containing a high level of tertiary amine functionality. Such polymers exhibit an increased efficiency in coupling termination reactions, and elastomers and products prepared from such polymers exhibit reduced hysteresis properties. Methods are also provided for preparing the initiators, the polymers and the elastomers.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: March 11, 1997
    Assignee: Bridgestone/Firestone, Inc.
    Inventors: Thomas A. Antkowiak, James E. Hall
  • Patent number: 5587420
    Abstract: In one of several methods of producing polybutadiene or a butadiene-styrene copolymer with an organolithium initiator, an organotin compound such as tetraallyltin, tetrabenzyltin and tetraphenyltin is added to the polymerization system in a period of growth of the polymer chain between a time immediately after a start of the polymerization to a time before an end of the polymerization. In another of the methods, tin tetrachloride or tin dichloride is added at an earlier time after a start of the polymerization. A polymer comprising a considerable amount of high molecular weight polymer containing the chain having a tin-carbon linkage is formed. A rubber composition for tires comprises specified amounts of the polymer described above, natural rubber, carbon black and vulcanizing agents. The rubber composition has a small loss factor and excellent fracture properties.
    Type: Grant
    Filed: June 3, 1993
    Date of Patent: December 24, 1996
    Assignee: Bridgestone Corporation
    Inventors: Toshiki Takizawa, Yasuo Horikawa, Taro Akazawa
  • Patent number: 5578684
    Abstract: Polyvinylpyridine N-oxides are prepared by oxidizing polyvinyl-pyridines with aqueous solutions of hydrogen peroxide in the presence of acids and oxides or acids of elements of Groups 5b, 6b, 7b and 8 of the Periodic Table or of salts of these acids as catalyst, it also being possible for the oxidation to take place in the absence of the catalysts when from 40 to 80% strength aqueous solutions of at least dibasic carboxylic acids or of polymers of monoethylenically unsaturated carboxylic acids are used as solvent.
    Type: Grant
    Filed: August 24, 1995
    Date of Patent: November 26, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Christian Schade, Dieter Boeckh, Juergen Detering
  • Patent number: 5567778
    Abstract: Disclosed herein is an optical filter comprising: a resin material obtained by copolymerizing a monomer represented by the following formula (I) and a monomer copolymerizable therewith; and a metallic compound mainly composed of a copper compound;PO(OH).sub.n R.sub.3-n (I)wherein R represents ##STR1## (wherein X represents a hydrogen atom or a methyl group, and m is an integer of 0 to 5), and n is 1 or 2.
    Type: Grant
    Filed: April 5, 1995
    Date of Patent: October 22, 1996
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Teruo Sakagami, Takeo Ogihara, Yasufumi Fujii, Hiroki Katono
  • Patent number: 5565526
    Abstract: A process for the preparation of hydrocarbon solutions of monofunctional ether initiators of the following general structure:M--Q.sub.n --Z--OA(R.sup.1 R.sup.2 R.sup.3) (II)wherein M is defined as 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 and alkenylsubstituted aromatic hydrocarbons; Z is defined as a branched or straight chain hydrocarbon tether or connecting group which contains 3-25 carbon atoms, optionally containing aryl or substituted aryl groups; A is an element selected from Group IVa of the periodic table and R.sup.1, R.sup.2, and R.sup.3 are independently selected from hydrogen, alkyl, substituted alkyl, aryl or substituted aryl groups, and n is an integer from 1 to 5.
    Type: Grant
    Filed: May 8, 1995
    Date of Patent: October 15, 1996
    Assignee: FMC Corporation
    Inventors: James A. Schwindeman, Conrad W. Kamienski, Robert C. Morrison
  • Patent number: 5563205
    Abstract: A water-resistant, removable pressure sensitive adhesive for use with transparent film facestocks comprises an acrylic-based emulsion polymer composition comprising 85 to 97% by weight alkyl acrylate monomers, up to 3% by weight polar monomers, up to 1% by weight internal crosslinking agent and up to 2% by weight external crosslinking agent.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: October 8, 1996
    Assignee: Avery Dennison Corporation
    Inventors: Andre Mayer, Paul Keller
  • Patent number: 5561167
    Abstract: An antibacterial fiber includes an ion exchange fiber and an antibacterial metal ion entrapped within the ion exchange fiber through an ion exchange reaction. The invention also discloses antibacterial textiles and water-treating element using the fibers.
    Type: Grant
    Filed: November 21, 1995
    Date of Patent: October 1, 1996
    Assignee: Suntory Limited
    Inventors: Nobuya Matsumoto, Shinichi Kunisaki, Goro Fujiwara, Mitsunobu Masuda, Hiroshi Horie, Asaichi Kawanaka
  • Patent number: 5559192
    Abstract: An air curing polymer composition is disclosed which contains acetoacetate functional polymer and an autoxidizable material. The composition cures on exposure to oxygen. One pack stable ambient curing compositions and a method of stabilizing acetoacetate functional groups to prevent hydrolysis are also disclosed.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: September 24, 1996
    Assignee: Rohm and Haas Company
    Inventors: Daniel A. Bors, Alvin C. Lavoie, William D. Emmons
  • Patent number: 5559162
    Abstract: The present invention relates to polymeric peroxycarbonates, a process for making the polymeric peroxycarbonates and initiator compositions comprising these polymeric peroxycarbonates. The polymeric peroxycarbonates of the present invention provide significant advantages in the polymerization of vinyl monomers.
    Type: Grant
    Filed: February 23, 1995
    Date of Patent: September 24, 1996
    Assignee: Akzo Nobel, NV
    Inventors: John Meijer, Petrus J. T. Alferink
  • Patent number: 5552473
    Abstract: The present invention is directed toward anionic polymerization initiators which are soluble in acyclic alkane solvents. The initiators include a solubilized lithio amine having the general formula (A)Li(SOL).sub.y. SOL is a solubilizing component and A is an alkyl, dialkyl or cycloalkyl amine radical or a cyclic amine and y is from about 1 to 4. The cyclic amine has an alkylene, oxy- or amino-alkylene group having from about 3 to about 16 methylene groups. The invention is also directed toward polymers and other products made using the initiator, and methods therefor. Further, the invention contemplates a polymer, a polymer composition and products therefrom, which include a functional group from the reaction product of an amine and an organolithium compound. The resulting polymers may be terminated with a terminating, coupling or linking agent, which may provide the polymer wtih a multifunctionality.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: September 3, 1996
    Assignee: Bridgestone Corporation
    Inventors: David F. Lawson, Mark L. Stayer, Jr., David Saffles
  • Patent number: 5552499
    Abstract: The present invention is directed toward anionic polymerization employing lithio amines mixed with an organic alkali metal compound and optionally, a chelating reagent. The lithio amines have the general formula (A)Li(SOL).sub.y, where SOL is a solubilizing component, A is an alkyl, dialkyl, cycloalkyl or dicycloalkyl amine radical or a cyclic amine, and y is 0 or is from about 0.5 to about 3. The invention is also directed toward polymers and other products made using the initiator, and methods therefor. Further, the invention contemplates a polymer, a polymer composition and products therefrom, which include a functional group from the reaction product of an amine and an organolithium compound. The resulting polymers may be terminated with a terminating, coupling or linking agent, which may provide the polymer with a multifunctionality.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: September 3, 1996
    Assignee: Bridgestone Corporation
    Inventors: Takashi Kitamura, David F. Lawson, Koichi Morita, Yoichi Ozawa
  • Patent number: 5541264
    Abstract: The subject invention discloses a process for preparing a coupled styrene-isoprene-butadiene rubber which is particularly valuable for use in making automobile tire tread rubber compounds which comprises the steps of (1) solution terpolymerizing in an organic solvent from about 5 weight percent to about 40 weight percent styrene, from about 1 weight percent to about 10 weight percent isoprene, and from about 50 weight percent to about 94 weight percent 1,3-butadiene, based on total monomers, to a conversion of at least about 90% to produce a living styrene-isoprene-butadiene polymer, wherein the terpolymerization is initiated with an organolithium compound, and wherein the terpolymerization is conducted in the presence of a polar modifier at a molar ratio of the polar modifier to the organolithium compound, which is within the range of about 0.5:1 to about 5:1, and wherein the terpolymerization is conducted at a temperature which is within the range of about 20.degree. C. to about 150.degree. C.
    Type: Grant
    Filed: May 12, 1995
    Date of Patent: July 30, 1996
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Wen-Liang Hsu, Adel F. Halasa, Barry A. Matrana, Scott M. Christian, Laurie E. Austin, Bill B. Gross
  • Patent number: 5516851
    Abstract: Supported catalysts, obtainable bya) dissolving a catalytically active component or its intermediate in a solvent,b) adding an organic polymer which is capable of binding at least ten times its own weight of water to the solution thus obtained,c) then mixing the polymer with a catalyst carrier,d) molding the material thus obtained, drying and calcining, a process for their preparation and their use.
    Type: Grant
    Filed: November 16, 1994
    Date of Patent: May 14, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Klemens Flick, Peter Polanek, Dietmar Posselt
  • Patent number: 5514756
    Abstract: The subject invention discloses a process for preparing a coupled styrene-isoprene-butadiene rubber which is particularly valuable for use in making automobile tire tread rubber compounds which comprises the steps of (1) solution terpolymerizing in an organic solvent from about 5 weight percent to about 40 weight percent styrene, from about 1 weight percent to about 10 weight percent isoprene, and from about 50 weight percent to about 94 weight percent 1,3-butadiene, based on total monomers, to a conversion of at least about 90% to produce a living styrene-isoprene-butadiene polymer, wherein the terpolymerization is initiated with an organolithium compound, and wherein the terpolymerization is conducted in the presence of a polar modifier at a molar ratio of the polar modifier to the organolithium compound, which is within the range of about 0.5:1 to about 5:1, and wherein the terpolymerization is conducted at a temperature which is within the range of about 20.degree. C. to about 150.degree. C.
    Type: Grant
    Filed: May 12, 1995
    Date of Patent: May 7, 1996
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Wen-Liang Hsu, Adel F. Halasa, Barry A. Matrana, Scott M. Christian, Laurie E. Austin, Bill B. Gross