Ethylenic Reactant Contains Atoms Other Than C, H, O, N, S, Or Cl Patents (Class 525/288)
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Patent number: 7009024Abstract: Optically transparent, relatively high refractive index polymeric compositions and ophthalmic devices such as intraocular lenses, corneal inlays and contact lenses made therefrom are described herein. The preferred polymeric compositions are produced through the polymerization of one or more aromatic-based siloxane macromonomers or the copolymerization of one or more aromatic-based siloxane macromonomers with one or more non-siloxy aromatic-based monomers, non-aromatic-based hydrophobic monomers or non-aromatic-based hydrophilic monomers.Type: GrantFiled: September 18, 2003Date of Patent: March 7, 2006Assignee: Bausch & Lomb IncorporatedInventors: Joseph C. Salamone, Jay F. Kunzler, Richard M. Ozark, David E. Seelye
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Patent number: 7005494Abstract: Optically transparent, relatively high refractive index polymeric compositions and ophthalmic devices such as intraocular lenses, corneal inlays and contact lenses made therefrom are described herein. The preferred polymeric compositions are produced through the polymerization of one or more aromatic-based siloxane macromonomers or the copolymerization of one or more aromatic-based siloxane macromonomers with one or more non-siloxy aromatic-based monomers, non-aromatic-based hydrophobic monomers or non-aromatic-based hydrophilic monomers.Type: GrantFiled: October 23, 2003Date of Patent: February 28, 2006Assignee: Bausch & Lomb IncorporatedInventors: Joseph C. Salamone, Jay F. Kunzler, Richard M. Ozark, David E. Seelye
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Patent number: 7001966Abstract: The present invention relates to a process for preparing an isobutene polymer using a cyclopentene derivative as initiator and to the isobutene polymer obtainable by means of the process and to particular functionalization products thereof.Type: GrantFiled: February 27, 2003Date of Patent: February 21, 2006Assignee: BASF AktiengesellschaftInventors: Gabriele Lang, Arno Lange, Hans Peter Rath, Helmut Mach
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Patent number: 6992162Abstract: Optically transparent, relatively high refractive index polymeric compositions and ophthalmic devices such as intraocular lenses, corneal inlays and contact lenses made therefrom are described herein. The preferred polymeric compositions are produced through the polymerization of one or more aromatic-based siloxane macromonomers or the copolymerization of one or more aromatic-based siloxane macromonomers with one or more non-siloxy aromatic-based monomers, non-aromatic-based hydrophobic monomers or non-aromatic-based hydrophilic monomers.Type: GrantFiled: October 23, 2003Date of Patent: January 31, 2006Assignee: Bausch & Lomb IncorporatedInventors: Joseph C. Salamone, Jay F. Kunzler, Richard M. Ozark, David E. Seelye
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Patent number: 6989430Abstract: Optically transparent, relatively high refractive index polymeric compositions and ophthalmic devices such as intraocular lenses, corneal inlays and contact lenses made therefrom are described herein. The preferred polymeric compositions are produced through the polymerization of one or more aromatic-based siloxane macromonomers or the copolymerization of one or more aromatic-based siloxane macromonomers with one or more non-siloxy aromatic-based monomers, non-aromatic-based hydrophobic monomers or non-aromatic-based hydrophilic monomers.Type: GrantFiled: October 23, 2003Date of Patent: January 24, 2006Assignee: Bausch & Lomb IncorporatedInventors: Joseph C. Salamone, Jay F. Kunzler
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Patent number: 6943218Abstract: A chemical composition and method for the production of polyolefins having enhanced flame retardancy and abrasion resistance properties. Additives are covalently bound to substrate polymers by means of a graft polymerization process. Chemical grafting is facilitated by a novel mixture of graft initiating catalyst and substrate monomers.Type: GrantFiled: May 21, 2002Date of Patent: September 13, 2005Assignee: Westgate Capital Company, L.L.C.Inventors: Mohan L. Sanduja, Paul Thottathil
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Patent number: 6943203Abstract: A soft contact lens containing a silicone-hydrogel made by curing a reaction mixture containing a silicone-containing monomer.Type: GrantFiled: September 20, 2001Date of Patent: September 13, 2005Assignee: Johnson & Johnson Vision Care, Inc.Inventors: Douglas G. Vanderlaan, David C. Turner, Marcie V. Hargiss, Annie C. Maiden, Robert N. Love, James D. Ford, Frank F. Molock, Robert B. Steffen, Gregory A. Hill, Azaam Alli, John B. Enns, Kevin P. McCabe
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Patent number: 6930147Abstract: The present invention relates to a vinyl polymer terminated in a silanol group, a hydrolyzable silyl group or an acrylic functional group, to a method of producing a vinyl polymer having a hydrolyzable silyl group at one or more termini thereof which comprises reacting a vinyl polymer having a silanol group at one or more termini thereof with a silicon compound having two or more silicon atom-bound hydrolyzable groups, and a method of producing a vinyl polymer having an acrylic functional group at one or more termini thereof which comprises reacting a vinyl polymer having a silanol group at one or more termini thereof with a silicon compound represented by the general formula (3): XSiR2—G—O—C(O)C(L)?CH2??(3) wherein X is a hydrolyzable group.Type: GrantFiled: September 2, 1999Date of Patent: August 16, 2005Assignee: Kaneka CorporationInventors: Yoshiki Nakagawa, Kenichi Kitano, Masayuki Fujita
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Patent number: 6908978Abstract: Optically transparent, relatively high refractive index polymeric compositions and ophthalmic devices such as intraocular lenses, contact lenses and corneal inlays made therefrom are described herein. The preferred polymeric compositions are produced through the polymerization of one or more siloxysilane monomers or the copolymerization of one or more siloxysilane monomers with one or more aromatic or non-aromatic non-siloxy monomers, hydrophobic monomers or hydrophilic monomers.Type: GrantFiled: November 2, 2001Date of Patent: June 21, 2005Assignee: Bausch & Lomb IncorporatedInventors: Joseph C. Salamone, Jay F. Kunzler, Richard M. Ozark, David E. Seelye
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Patent number: 6881809Abstract: Optically transparent, relatively high refractive index polymeric compositions and ophthalmic devices such as intraocular lenses, contact lenses and corneal inlays made therefrom are described herein. The preferred polymeric compositions are produced through the polymerization of one or more aromatic-based silyl monomers or the copolymerization of one or more aromatic-based silyl monomers with one or more aromatic or non-aromatic non-siloxy-based monomers, hydrophobic monomers or hydrophilic monomers.Type: GrantFiled: May 18, 2004Date of Patent: April 19, 2005Assignee: Bausch & Lomb IncorporatedInventors: Joseph C. Salamone, Jay F. Kunzler, Richard M. Ozark, David E. Seelye, David P. Vanderbilt
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Patent number: 6881808Abstract: Optically transparent, relatively high refractive index polymeric compositions and ophthalmic devices such as intraocular lenses, corneal inlays and contact lenses made therefrom are described herein. The preferred polymeric compositions are produced through the polymerization of one or more aromatic-based siloxane macromonomers or the copolymerization of one or more aromatic-based siloxane macromonomers with one or more non-siloxy aromatic-based monomers, non-aromatic-based hydrophobic monomers or non-aromatic-based hydrophilic monomers.Type: GrantFiled: September 18, 2003Date of Patent: April 19, 2005Assignee: Bausch & Lomb IncorporatedInventors: Joseph C. Salamone, Jay F. Kunzler, Richard M. Ozark, David E. Seelye
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Patent number: 6864342Abstract: Relatively high refractive index polymeric compositions and ophthalmic devices such as for example intraocular lenses and corneal inlays made therefrom are described herein. The preferred polymeric compositions are produced through the copolymerization of one or more aromatic-substituted polysiloxane prepolymers with one or more aromatic monomers, alkylated monomers or hydrophilic monomers.Type: GrantFiled: July 12, 2004Date of Patent: March 8, 2005Assignee: Bausch & Lomb IncorporatedInventors: Yu-Chin Lai, Edmond T. Quinn
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Patent number: 6855780Abstract: This invention provides a production method of a vinyl polymer having a functional group at a molecular chain terminus which comprises adding a compound (I) having a functional group and an internal alkenyl group or conjugated polyene compound (II) in the living radical polymerization of a radical-polymerizable vinyl monomer. The present invention relates to a vinyl polymer having a functional group at a molecular terminus, a production method of the same and a curable composition containing said polymer.Type: GrantFiled: January 28, 2000Date of Patent: February 15, 2005Assignee: Kaneka CorporationInventors: Yoshiki Nakagawa, Kenichi Kitano, Nao Fujita
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Patent number: 6846897Abstract: Optically transparent, relatively high refractive index polymeric compositions and ophthalmic devices such as intraocular lenses, contact lenses and corneal inlays made therefrom are described herein. The preferred polymeric compositions are produced through the polymerization of one or more aromatic-based silyl monomers or the copolymerization of one or more aromatic-based silyl monomers with one or more aromatic or non-aromatic non-siloxy-based monomers, hydrophobic monomers or hydrophilic monomers.Type: GrantFiled: May 18, 2004Date of Patent: January 25, 2005Assignee: Bausch and Lomb, Inc.Inventors: Joseph C. Salamone, Jay F. Kunzler, Richard M. Ozark, David E. Seelye, David P. Vanderbilt
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Publication number: 20040254302Abstract: A process for reducing the rate of premature crosslinking under ambient conditions of an olefin copolymer or graft copolymer having hydrolysable silane groups is disclosed, comprising incorporating therewith a crosslinking retarder capable of reacting with said hydrolysable silane groups to form un-hydrolysable groups, in an amount sufficient to react with at least 5 mol % of the hydrolysable silane groups.Type: ApplicationFiled: November 18, 2003Publication date: December 16, 2004Inventors: Antonio Belforte, Virgile Rouyer
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Patent number: 6812290Abstract: A polyarylene copolymer which comprises (A) aromatic compound units having a main chain containing one or more electron-withdrawing groups therein and (B) aromatic compound units having a main chain containing no electron-withdrawing groups therein, and a proton-conductive membrane comprising the polyarylene copolymer having sulfonic acid groups.Type: GrantFiled: November 26, 2002Date of Patent: November 2, 2004Assignee: JSR CorporationInventors: Kohei Goto, Yoshitaka Yamakawa, Mayumi Kakuta, Igor Rozhanskii
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Patent number: 6803423Abstract: An (meth)acryloyl group-modified ethylene-&agr;-olefin copolymer (A) which has (meth)acryloyl group as a the side-chain thereof, wherein the intrinsic viscosity [&eegr;] was 0.01 to 10 dl/g measured in decalin at a temperature of 135° C.; and a rubber composition which comprises said (meth)acryloyl group-modified ethylene-&agr;-olefin copolymer, a vulcanizing agent, and/or a crosslinking agent; in addition, a liquid curable rubber composition which comprises, component (A), reactive diluent (D), and if necessary, photopolymerization initiator (E).Type: GrantFiled: June 17, 2002Date of Patent: October 12, 2004Assignee: JSR CorporationInventors: Toshiyuki Hayakawa, Toshihiro Nishimura, Motoharu Higuchi, Minoru Tanaka, Shoei Tsuji
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Patent number: 6767638Abstract: This invention concerns cationic core-shell particles having a polymeric core component and a polymeric shell component disposed generally about said core, wherein said shell contains a stabilizer that is covalently bonded to the polymeric shell component. More particularly, the invention concerns the use of these core-shell particles in formulating ink jet receptive coatings.Type: GrantFiled: November 8, 2002Date of Patent: July 27, 2004Assignee: MeadWestvaco CorporationInventor: Gamini S. Samaranayake
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Patent number: 6765065Abstract: There is provided a process for producing a modified polymer rubber having modified both ends, which comprises the steps of: (1) reacting a compound represented by the following formula (1) with an organic alkali metal compound to produce a chemical species, (2) polymerizing a conjugated diene monomer or a combination of a conjugated diene monomer with an aromatic vinyl monomer in the presence of the chemical species to produce an active polymer having an alkali metal at an end thereof, and (3) reacting the active polymer with a functional group-carrying modifying agent in a hydrocarbon solvent to produce the modified polymer rubber having modified both ends.Type: GrantFiled: October 10, 2002Date of Patent: July 20, 2004Assignee: Sumitomo Chemical Company, LimitedInventors: Mayumi Oshima, Seiichi Mabe, Katsunari Inagaki
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Patent number: 6762271Abstract: Optically transparent, relatively high refractive index polymeric compositions and ophthalmic devices such as intraocular lenses, contact lenses and corneal inlays made therefrom are described herein. The preferred polymeric compositions are produced through the polymerization of one or more aromatic-based silyl monomers or the copolymerization of one or more aromatic-based silyl monomers with one or more aromatic or non-aromatic non-siloxy-based monomers, hydrophobic monomers or hydrophilic monomers.Type: GrantFiled: November 2, 2001Date of Patent: July 13, 2004Assignee: Bausch & Lomb IncorporatedInventors: Joseph C. Salamone, Jay F. Kunzler, Richard M. Ozark, David E. Seelye, David P. Vanderbilt
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Patent number: 6756448Abstract: The present invention relates to a styrene copolymer and the method of preparing the same through the steps described in the following: a step of making a living polymer with an active anion by polymerizing an anionically polymerizable monomer in a non polar solvent in the presence of alkyllithum catalyst; a step of preparing a macro monomer by reacting the abovementioned living polymer with a terminal modifier represented by the structure of formula 1; and a step of copolymerizing the above macro monomer with styrene monomer with transition catalyst and co-catalyst.Type: GrantFiled: May 15, 2003Date of Patent: June 29, 2004Assignee: Korea Kumho Petrochemical Co., Ltd.Inventors: Kwanyoung Lee, Namsun Choi
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Patent number: 6743834Abstract: Anionic electrodeposition coating compositions for forming matte films containing acrylic resin; alkoxysilyl group containing emulsified polymer produced by a multiple stage emulsion polymerization of unsaturated monomer in the presence of water and a emulsifier, wherein the unsaturated monomer containing alkoxysilyl group-containing unsaturated monomer is present in an amount of 5 to 40% by weight based on a total amount of all the unsaturated monomers used in the multiple stage emulsion polymerization; and crosslinking agent.Type: GrantFiled: October 10, 2001Date of Patent: June 1, 2004Assignee: Kansai Taint Co., Ltd.Inventors: Tetsuya Yokoyama, Kamikado Koji
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Patent number: 6730767Abstract: Optically transparent, relatively high refractive index polymeric compositions and ophthalmic devices such as intraocular lenses, corneal inlays and contact lenses made therefrom are described herein. The preferred polymeric compositions are produced through the polymerization of one or more aromatic-based siloxane macromonomers or the copolymerization of one or more aromatic-based siloxane macromonomers with one or more non-siloxy aromatic-based monomers, non-aromatic-based hydrophobic monomers or non-aromatic-based hydrophilic monomers.Type: GrantFiled: November 2, 2001Date of Patent: May 4, 2004Assignee: Bausch & Lomb IncorporatedInventors: Joseph C. Salamone, Jay F. Kunzler, Richard M. Ozark, David E. Seelye
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Patent number: 6727321Abstract: The preparation of allylated poly(vinyl chloride) by utilizing an allyltrialkylsilane in the presence of Friedel-Crafts acids is disclosed. The pendant allyl groups can be further reacted through various functionalization reactions to contain end groups such as epoxy. A method for determination of the labile chlorine content of poly(vinyl chloride) is also disclosed.Type: GrantFiled: June 27, 2000Date of Patent: April 27, 2004Assignee: University of AkronInventors: Joseph P. Kennedy, Zhengjie Pi
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Patent number: 6723816Abstract: Optically transparent, relatively high refractive index polymeric compositions and ophthalmic devices such as intraocular lenses, corneal inlays and contact lenses made therefrom are described herein. The preferred polymeric compositions are produced through the polymerization of one or more aromatic-based siloxane macromonomers or the copolymerization of one or more aromatic-based siloxane macromonomers with one or more non-siloxy aromatic-based monomers, non-aromatic-based hydrophobic monomers or non-aromatic-based hydrophilic monomers.Type: GrantFiled: November 2, 2001Date of Patent: April 20, 2004Assignee: Bausch & Lomb IncorporatedInventors: Joseph C. Salamone, Jay F. Kunzler, Richard M. Ozark, David E. Seelye
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Publication number: 20030215604Abstract: This invention concerns cationic core-shell particles having a polymeric core component and a polymeric shell component disposed generally about said core, wherein said shell contains a stabilizer that is covalently bonded to the polymeric shell component. More particularly, the invention concerns the use of these core-shell particles in formulating ink jet receptive coatings.Type: ApplicationFiled: November 8, 2002Publication date: November 20, 2003Applicant: Westvaco CorporationInventor: Gamini S. Samaranayake
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Patent number: 6617410Abstract: Isotactic-polypropylene-based copolymers having a homogenous distribution of recurring units of formula (1): where R is a hydrogen, halide radical or a hydrocarbyl radical optionally containing an atom selected from oxygen, nitrogen, sulphur, phosphorus and silicon, and n is an integer ranging from 1 to 3; said copolymer having a 13C-NMR spectrum wherein the resonance signals attributed to the links between different monomeric units fall around 30, 34, 35, 45 and 47 ppm and present intensities at least two times higher than the resonance signals attributed to styrene—styrene sequences around 41 ppm and 44-46 ppm; a process for preparing said copolymers carried out in the presence of homogeneous catalytic systems comprising a metallocene compound and a cocatalyst; functionalized copolymers obtained from said isotactic-polypropylene-based copolymers; and graft copolymers comprising said isotactic-polypropylene-based copolymers as backbones.Type: GrantFiled: February 6, 2002Date of Patent: September 9, 2003Assignee: Basell Polyolefine GmbHInventors: Leone Oliva, Gaetano Guerra, Lucia Caporaso, Lorella Izzo, Luigi Resconi
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Publication number: 20030162904Abstract: A catalyst suitable for crosslinking reaction of a compound containing &agr;,&bgr;-unsaturated carbonyl groups and a compound containing a CH-acidic methylene group is provided. A curable mixture comprises at least one compound containing at least two &agr;,&bgr;-unsaturated carbonyl groups and at least one compound containing at least one CH-acidic methylene group and at least one trialkylphosphine.Type: ApplicationFiled: December 18, 2002Publication date: August 28, 2003Inventors: Artur Lachowicz, Kai-Uwe Gaudl, Gerwald Grahe
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Patent number: 6593439Abstract: A method of producing a polymer comprises the steps of forming a heterogeneous reaction mixture comprising at least one addition polymerizable monomer, a supercritical fluid, and a stabilizer, wherein the stabilizer comprises a chain which is soluble in the supercritical fluid and functional end-group which is not polymerizable by a free-radical mechanism, and polymerizing said at least one monomer in the reaction mixture. In a preferred system for polymerizing acrylic monomers, the fluid comprises supercritical carbon dioxide and the stabilizer comprises an acid-functionalized perfluoropolyether.Type: GrantFiled: March 6, 2001Date of Patent: July 15, 2003Assignee: Imperial Chemical Industries PlcInventors: Paul Christian, Steven Melvyn Howdle, Derek John Irvine
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Patent number: 6590039Abstract: Curable silylated copolymers based on olefin copolymers comprising at least one alpha-olefin and a vinyl aromatic monomer (alkyl styrene) are prepared by reacting the olefin copolymer with an olefinically unsaturated hydrolyzable silane in the presence of a free radical generating agent. The silylated copolymers are readily curable by contact with water (moisture) and a silanol condensation catalyst and are particularly useful as the polymeric component in sealant, caulking, adhesive and coating formulations.Type: GrantFiled: June 24, 2002Date of Patent: July 8, 2003Assignee: ExxonMobil Chemical Patents Inc.Inventors: Hsien-Chang Wang, David Yen-Lung Chung
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Patent number: 6579959Abstract: The present invention has for its object to produce an isobutylene polymer having excellent performance characteristics by suppressing side reactions at the polymer growth termini during polymerization. The process of the present invention is to carry out a cationic polymerization of a monomer component containing isobutylene in the presence of a polymerization initiator, a catalyst, an ether compound, and an electron donor. Moreover, the process is to carry out a cationic polymerization of a monomer component containing isobutylene in the presence of a polymerization initiator, a catalyst, an ether compound, and an electron donor, and add a compound having the carbon-carbon unsaturated bond for introducing the carbon-carbon unsaturated bond into the polymer terminus.Type: GrantFiled: March 19, 2002Date of Patent: June 17, 2003Assignee: Kaneka CorporationInventors: Chiho Yoshimi, Keizo Hayashi, Shigeru Hagimori, Naoki Furukawa
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Patent number: 6572969Abstract: This invention concerns cationic core-shell particles having a polymeric core component and a polymeric shell component disposed generally about said core, wherein said shell contains a stabilizer that is covalently bonded to the polymeric shell component. More particularly, the invention concerns the use of these core-shell particles in formulating ink jet receptive coatings.Type: GrantFiled: May 16, 2002Date of Patent: June 3, 2003Assignee: MeadWestvaco CorporationInventor: Gamini S. Samaranayake
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Patent number: 6555626Abstract: A polyarylene copolymer which comprises (A) from 60 to 3 mol % aromatic compound units having a main chain containing one or more electron-withdrawing groups therein and (B) from 40 to 97 mol % aromatic compound units having a main chain containing no electron-withdrawing groups therein (provided that (A)+(B)=100 mol %), and a proton-conductive membrane comprising the polyarylene copolymer having sulfonic acid groups.Type: GrantFiled: March 28, 2001Date of Patent: April 29, 2003Assignee: JSR CorporationInventors: Kohei Goto, Yoshitaka Yamakawa, Mayumi Kakuta, Igor Rozhanskii
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Publication number: 20030065101Abstract: A photoresist composition comprising at least one acetal polymer having a silicon substituent; provided that the silicon substituent is not directly attached to the acetal functionality, thereby providing high resolution, improved DOF, and improved dimensional stability under metrology conditions.Type: ApplicationFiled: April 4, 2002Publication date: April 3, 2003Applicant: ARCH SPECIALITY CHEMICALS, INC.Inventors: Andrew J. Blakeney, Sanjay Malik, Stephanie Dilocker, John Ferri, Jeffery Eisele
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Publication number: 20030065100Abstract: A vinyl polymer having, at a molecular chain terminus, a structure represented by the general formula 1: 1Type: ApplicationFiled: October 1, 2002Publication date: April 3, 2003Inventors: Yoshiki Nakagawa, Kenichi Kitano, Masayuki Fujita, Nao Fujita
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Patent number: 6541114Abstract: Composite particles capable of forming a coating excelling in weatherability and, in particular, stain-proof characteristics, a composite particle dispersion composition containing the composite particles and excelling in film formability, and a method of preparing the composite particle dispersion composition. The composite particles contain (i) polymer particles having 2-70 wt % of a polymer phase (a) of the core and 98-30 wt % of a polymer phase (b) of the shell, and (ii) a polymer of at least either an organosilicon compound or organometallic compound present at least either on or near the surface of the polymer phase (b), wherein the polymer phase (a) and the polymer phase (b) have different monomer compositions.Type: GrantFiled: January 17, 2001Date of Patent: April 1, 2003Assignee: JSR CorporationInventors: Minoru Katou, Katsuhiko Tsuruoka
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Patent number: 6521342Abstract: This invention concerns cationic core-shell particles having an acid-insoluble polymeric core and an acid-swellable polymeric shell component disposed generally about said core so that upon neutralizing said shell with acid, a portion of said shell remains attached or associated with said core. This invention further concerns polymer latex compositions wherein said polymeric shell component has been neutralized and substantially, but not totally, dissolved so as to form a blend of neutralized core-shell polymer and an aqueous solution of neutralized shell polymer. More particularly, the invention concerns the use of latex compositions produced from these cationic core-shell particles to formulate ink jet receptive coatings.Type: GrantFiled: June 12, 2002Date of Patent: February 18, 2003Assignee: Westvaco CorporationInventors: G. Frederick Hutter, Camille K. Stebbins
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Patent number: 6521343Abstract: This invention concerns cationic core-shell particles having an acid-insoluble polymeric core component and an acid-swellable polymeric shell component disposed generally about said core so that upon neutralizing said shell with acid, a portion of said shell remains attached or associated with said core; and wherein said shell contains a stabilizer that is covalently bonded to the polymeric shell component. This invention further concerns polymer latex compositions wherein said polymeric shell component has been neutralized and substantially, but not totally, dissolved so as to form a blend of neutralized core-shell polymer and an aqueous solution of neutralized shell polymer. More particularly, the invention concerns the use of latex compositions produced from these cationic core-shell particles to formulate ink jet receptive coatings.Type: GrantFiled: July 12, 2002Date of Patent: February 18, 2003Assignee: Westvaco CorporationInventors: Gamini S. Samaranayake, G. Frederick Hutter, Camille K. Stebbins
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Publication number: 20020183412Abstract: The invention relates to a process of crosslinking a polymer material with silane by means of heat, in which process a polymer, a grafting agent, an initiator and a crosslinking catalyst and optional additives are fed into an extruder and extruded to a homogenous mass by keeping the process temperature so low that the initiator used does not degrade during the extrusion and the optional additives do not react or degrade in the extruder, and, after the extrusion, the extruded mass is grafted and crosslinked. After the extrusion, the process of the invention comprises a step of heating the initiator, mixed homogenously with the polymer material, by means of infared radiation in a wavelength range absorbed by the initiator.Type: ApplicationFiled: April 29, 2002Publication date: December 5, 2002Applicant: MAILLEFER S.A..Inventors: Ali Harlin, Matti Sistola
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Patent number: 6482900Abstract: A vinyl polymer having, at a molecular chain terminus, a structure represented by the general formula 1: (wherein R3 is a hydroxy, amino, epoxy, carboxylic acid, ester, ether, amide or silyl group, an alkenyl group having low polymerizability, an organic compound having 1 to 20 carbon atoms, X is a halogen atom, a nitroxide or sulfide group or a cobalt porphyrin complex).Type: GrantFiled: June 5, 2000Date of Patent: November 19, 2002Assignee: Kaneka CorporationInventors: Yoshiki Nakagawa, Kenichi Kitano, Masayuki Fujita, Nao Fujita
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Publication number: 20020132928Abstract: This invention is directed to a processing approach for the rapid and efficient in-situ polymerization of specially prepared precursor mixtures to achieve near-net-shape production of objects/articles with exact dimensions. The process relies on the use of polymerizable compositions comprised of a mixture of a dead polymer, a reactive plasticizer and, optionally, an initiator, which compositions are semi-solid-like prior to curing and induce low shrinkage upon curing as a result of their partially polymerized nature prior to processing. The partially polymerized nature of the precursor mixtures also allows extremely impact-resistant objects/articles to be fabricated. Other desirable engineering property attributes can similarly be achieved via the judicious blending of starting ingredients in formulating the polymerizable (curable) mixtures.Type: ApplicationFiled: February 25, 2002Publication date: September 19, 2002Applicant: ZMS, LLCInventors: David S. Soane, Michael R. Houston, Toshiaki Hino
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Patent number: 6448343Abstract: The formation of thermoplastic vulcanates may be accomplished with two polymers, wherein one polymer is grafted, or copolymerized with a carboxylic acid anhydride, which acid anhydride grafted polymer then is reacted with an amino silane, which reacts with the acid anhydride and then cross links.Type: GrantFiled: February 15, 2000Date of Patent: September 10, 2002Assignee: Crompton CorporationInventors: Jacques F. Schombourg, Peter Kraxner, Willy Furrer, Abdellatif Adberrazig
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Patent number: 6441097Abstract: The present invention is directed to a crosslinkable polymer composition comprising an alkoxysilane functional polyolefin and a silanol crosslinking catalyst selected from the group consisting of: (i) an alkylated naphthalene monosulfonic acid substituted with 1-4 alkyl groups wherein each alkyl group is a linear or branched alkyl with 5-20 carbons with each alkyl group being the same or different, wherein the total number of carbons in the alkyl groups is in the range of 20 to 80 carbons; (ii) an arylalkyl sulfonic acid wherein the aryl is phenyl or naphthyl and is substituted with 1-4 alkyl groups wherein each alkyl group is a linear or branched alkyl with 5-20 carbons with each alkyl group being the same or different, and wherein the total number of carbons in the alkyl groups is in the range of 12-80; (iii) a derivative of (i) or (ii) selected from the group consisting of an anhydride, an ester, an acetylate, an epoxy blocked ester and an amine salt thereof which is hydrolyzable to the corresponding alType: GrantFiled: July 19, 2001Date of Patent: August 27, 2002Assignee: King Industries, Inc.Inventors: Werner J. Blank, Edward T. Hessell, Richard A. Abramshe
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Patent number: 6429239Abstract: The invention concerns a dispersion powder composition which is redispersible in water and is made from water-insoluble organic polymers, the composition being characterized in that it contains 0.1 to 30% by wt., relative to the weight of the organic polymers, of one or more silicon compounds which are dispersible in water and which have a boiling point at normal pressure of 160 degrees C., selected from the group comprising the silanes, polysilanes, oligosiloxanes, carbosilanes, polycarbosilanes, carbosiloxanes, polycarbosiloxanes and polysilylenedisiloxanes. The invention also concerns methods for manufacturing such compounds and their use.Type: GrantFiled: August 16, 2000Date of Patent: August 6, 2002Assignee: Wacker-Chemie GmbHInventors: Herbert Eck, Klaus Adler, Heinrich Hopf, Franz Jodlbauer, Dieter Gerhardinger
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Patent number: 6420485Abstract: There is disclosed a silylated copolymer which is the reaction product of: (A) an olefin copolymer prepared from at least 50 mole percent of at least one C4 to C7 isomonoolefin monomer and at least one vinyl aromatic monomer; (B) a siloxane having the formula Q-SiR2(OR2Si)n″SiR′Y2 wherein Q is a monovalent group selected from hydrogen or an olefinically unsaturated hydrocarbon group having 2 to 8 carbon atoms, R is an alkyl group having 1 to 4 carbon atoms, R″ is a divalent hydrocarbon group having 1 to 6 carbon atoms, Y is a hydrolyzable organic group, R′ is selected from R or Y and n is an integer having a value of 1 to 9; and (C) a free radical generator.Type: GrantFiled: August 14, 2000Date of Patent: July 16, 2002Assignee: Dow Corning CorporationInventors: Toshio Suzuki, Anne Katja Shim
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Patent number: 6395837Abstract: The present invention is directed to a highly active condensation catalyst suitable for the crosslinking of alkoxysilanyl polyolefins, e.g.Type: GrantFiled: July 19, 2001Date of Patent: May 28, 2002Assignee: KIng Industries, Inc.Inventors: Werner J. Blank, Edward T. Hessell, Richard A. Abramshe
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Patent number: 6380316Abstract: A copolymer of isobutylene with 0.5 to 15 mole percent of a conjugated diene (i.e., a butyl rubber) is reacted with a silane having both an alkenyl group as well as at least two silicon-bonded hydrolyzable group, the reaction taking place in the presence of a free-radical generator, to provide a modified copolymer having reactive silyl groups grafted thereto. The modified copolymer exhibits a reduced molecular weight relative to the starting copolymer and may be used to formulate moisture-curable sealants, caulks, adhesive and coatings.Type: GrantFiled: March 2, 1999Date of Patent: April 30, 2002Assignees: Dow Corning Corporation, ExxonMobil Chemical Patents Inc.Inventors: Maneesh Bahadur, David Yen-Lung Chung, Toshio Suzuki, Raymond Lee Tabler, Hsien-Chang Wang
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Publication number: 20020035213Abstract: The present invention is directed to a crosslinkable polymer composition comprising an alkoxysilane functional polyolefin and a silanol crosslinking catalyst selected from the group consisting of:Type: ApplicationFiled: July 19, 2001Publication date: March 21, 2002Inventors: Werner J. Blank, Edward T. Hessell, Richard A. Abramshe
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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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Patent number: 6335398Abstract: A super absorbent polymer composition comprising a chelating compound (A) which has a site capable of forming a chelate with a copper ion and whose copper salt has a solubility in physiological saline at 25° C. of 0.01% by weight or less and a super absorbent polymer (B), wherein the chelating compound (A) is present in an amount of from 0.0001 to 30 parts by weight per 100 parts by weight of said super absorbent polymer (B).Type: GrantFiled: March 7, 1997Date of Patent: January 1, 2002Assignee: Kao CorporationInventors: Takayuki Amiya, Seiichi Miyanaga, Yoko Hanada