Specified Material Contains A Carbon Or Hydrogen Atom Bonded Directly To A Metal Atom Patents (Class 525/248)
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Patent number: 10105908Abstract: The present invention is directed to a process for producing a modified olefin polymer in an extruder having a feed zone, a melting zone, optionally a mixing zone and optionally a die zone, (A) introducing a stream of an olefin polymer into the feed zone of the extruder; (B) introducing a stream of a free radical generator directly into the feed zone or the melting zone or the mixing zone, if present, of the extruder; (C) introducing a stream of a functionally unsaturated compound directly into the feed zone or the melting zone or the mixing zone, if present, of the extruder; (D) extruding the mixture in the extruder at a temperature which is greater than the decomposition temperature of the free radical generator and the melting temperature of the olefin polymer but less than the decomposition temperature of the olefin polymer thereby producing the modified olefin polymer in the extruder; and, optionally, (G) passing the melt of the modified olefin polymer through the die zone to a pelletiser.Type: GrantFiled: February 3, 2016Date of Patent: October 23, 2018Assignee: Borealis AGInventors: Nicke Bergman, Udo Muster, Norbert Reichelt, Wolfgang Gierlinger
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Patent number: 9771438Abstract: A methacrylic resin composition, which comprises a methacrylic resin comprising 99.5% by mass or more of a structural unit derived from methyl methacrylate. The methacrylic resin includes less than 0.03 mol % of terminal double bonds based on the amount of the structural unit derived from methyl methacrylate and 0.2 mol % or more of combined sulfur atoms based on the amount of the structural unit derived from methyl methacrylate. The methacrylic resin composition has a melt flow rate of 8 g/10 min or more at 230° C. and a load of 3.8 kg.Type: GrantFiled: June 28, 2013Date of Patent: September 26, 2017Assignee: KURARAY Co., Ltd.Inventors: Hiroyuki Konishi, Takuro Niimura, Atsushi Matsumura, Hiroshi Ozawa
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Publication number: 20140114023Abstract: A catalyst is prepared in situ by reaction between an aryl halide and a Ni(0) complex. The catalyst may be used to promote chain-growth polymerization of halogen-substituted Mg or Zn monomers by a controlled radical mechanism. Polymers, co-polymers, block copolymers, polymer thin films, and surface-confined polymer brushes may be produced using the catalyst.Type: ApplicationFiled: June 28, 2012Publication date: April 24, 2014Applicant: Board of Supervisors of Louisiana State Univesity and Agricultural and Mechanical CollegeInventors: Evgueni E. Nesterov, Jinwoo Choi, Euiyong Hwang, Carlos A. Chavez
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Patent number: 8398898Abstract: The present invention provides conductivity promoters, and in particular soluble conductivity promoters that contain a hydrocarbon moiety or a siloxane moiety and a metal. The present invention also provides methods of making soluble conductivity promoters and adhesive compositions containing the conductivity promoters of the invention.Type: GrantFiled: February 23, 2009Date of Patent: March 19, 2013Assignee: Designer Molecules, Inc.Inventor: Stephen M Dershem
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Publication number: 20120022219Abstract: Provided is a vinyl ether-based star polymer which has an arm including a vinyl ether polymer and an arm including an oxystyrene polymer. Also provided is a process for producing the star polymer, which can be continuously carried out in a series of steps. Said vinyl ether-based star polymer and process for producing the same are such that the polymer includes a core and polymer-chain arm portions extending from the core, in which an arm portion including vinyl ether repeating units and an arm portion including oxystyrene repeating units are provided.Type: ApplicationFiled: January 8, 2010Publication date: January 26, 2012Applicant: MARUZEN PETROCHEMICAL CO., LTDInventor: Norihiro Yoshida
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Patent number: 7977432Abstract: The present invention is a, solid block copolymer comprising at least two polymer end blocks A and at least one polymer interior block B wherein each A block is a polymer block resistant to lithiation and each B block is a polymer block susceptible to lithiation, and wherein said A and B blocks do not contain any significant levels of olefinic unsaturation. After lithiation, the lithiated polymer is reacted with at least one graftable functional molecule selected from the group consisting of an electrophilic graftable molecule containing a functional group and an electrophile. Preferred are carbon monoxide and ethylene oxide. Also claimed are processes for making such block copolymers, and the various end uses and applications for such block copolymers.Type: GrantFiled: January 11, 2008Date of Patent: July 12, 2011Assignee: Kraton Polymers U.S. LLCInventors: Robert C. Bening, Dale Lee Handlin, Jr., Scott Russell Trenor, Carl Lesley Willis
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Publication number: 20110015349Abstract: According to an aspect of the present invention, a method is provided in which a double diphenylethylene compound is reacted with a polymer that contains a carbocationically terminated chain thereby providing a 1,1-diphenylene end-functionalized chain. Subsequently, an alkylating agent is reacted with the 1,1-diphenylene end-functionalized chain, thereby providing an alkylated 1,1-diphenylene end-functionalized chain. In some embodiments, the method further comprises (a) optionally combining a 1,1-diphenylorganolithium compound with the alkylated 1,1-diphenylene end-functionalized polymer followed by (b) reacting an organolithium compound with the alkylated 1,1-diphenylene end-functionalized polymer. This provides an anionically terminated polymer, which can be used, for example, in subsequent anionic polymerization and coupling reactions.Type: ApplicationFiled: February 2, 2010Publication date: January 20, 2011Applicant: University of Massachusetts LowellInventors: Rudolf Faust, Jae Cheol Cho
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Patent number: 7825200Abstract: Described are novel monomers bearing functionalities capable of initiating control free radical reactions, and a novel process using these initiating monomers in the co-polymerization of an olefin for the formation of well-controlled polyethylene graft polymers where the graft component is derived from controlled free radical polymerization reactions. The initiating monomers are produced by combining an amount of 5-norbornen-2-ol with a hydride or amine for a predetermined amount of time to form a mixture; and adding an amount of an alkyl or acyl halide to said mixture. Polymerization of an olefin with an initiating monomer is conducted in the presence of a metal compound, where the metal compound is comprised of a Group VIII transition metal complex.Type: GrantFiled: January 18, 2007Date of Patent: November 2, 2010Assignee: The Regents of the University of CaliforniaInventors: Guillermo C. Bazan, Robert C. Coffin
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Patent number: 7709687Abstract: The present invention provides a novel dicarbanionic initiator of formula (I). The present process further provides a process for the preparation of dicarbanionic initiator of formula (I) comprising reacting 1-bromo-4-(4?-bromophenoxy)-2-pentadecyl benzene of formula (II) with alkyllithium compound for an effecting halogen-lithium exchange reaction of 1-bromo-4-(4?-bromophenoxy)-2-pentadecyl benzene with sec-butyllithium in the presence of a non polar solvent, at a temperature in the range of 0 to 25° C. and its use as an initiator for the synthesis of telechelic polydienes and polystyrenes and SBS or SIS triblock copolymers.Type: GrantFiled: October 6, 2006Date of Patent: May 4, 2010Assignee: Council Of Scientific & Industrial ResearchInventors: Yves Gnanou, Rachid Matmour, Arvind Sudhakar More, Prakash Purushottam Wadgaonkar
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Patent number: 7645832Abstract: A thermoplastic elastomer having adhesion to steels, where the thermoplastic elastomer includes a dynamically crosslinked rubber, from more than 2.0 to 10 parts of a metal oxide or salt, and from 10 to 200 parts by weight of a functionalized polyolefin having pendant polar functional groups, where the polar functional groups are present at a level of 0.5 to 3.5 mole percent of the total repeating units of said functionalized polyolefin and the functionalized polyolefin is derived from polymerizing at least one monoolefin to form a semicrystalline polymer or is derived from hydrogenating the polydiene blocks of a block copolymer, and where the parts by weight are based on 100 parts by weight of crosslinked rubber.Type: GrantFiled: March 8, 2006Date of Patent: January 12, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventors: Weiguo Hu, Jim Lee Johnson
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Patent number: 7563852Abstract: Provided is a method of manufacturing a perhalogenated elastomer comprising using an onium compound to coagulate a latex comprising polymer particles, the polymer particles consisting essentially of interpolymerized units of one or more perhalogenated comonomer(s) and at least one cure site monomer, wherein the coagulation is performed essentially free of metal ions and metal salts. Also provided is an elastomeric composition comprising a curable perhalogenated elastomer comprising interpolymerized units derived from a nitrogen-containing cure site monomer and coagulated with an onium compound, wherein the elastomer is capable of curing without adding further components and wherein the composition is essentially free of metal ions and metal salts. Also provided are fluoropolymer articles and methods of making fluoropolymer compositions and articles.Type: GrantFiled: September 8, 2008Date of Patent: July 21, 2009Assignee: 3M Innovative Properties CompanyInventors: Guy Van Gool, Alain Verschuere, Werner M. A. Grootaert
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Publication number: 20090048405Abstract: The invention discloses an adhesion agent composition comprising at least one C3-C200 olefin compound having at least one metathesis active double bond, wherein the olefin is substituted or unsubstituted; and at least one compatibilizing functionality for interacting with a substrate surface. The substrate surface can be any surface, for example, silicate glasses, silicate minerals, metals, metal alloys, ceramics, natural stones, plastics, carbon, silicon, and semiconductors. The invention also discloses articles of manufacture utilizing these adhesion agents as well as methods for adhering a polyolefin to a substrate surface.Type: ApplicationFiled: March 4, 2008Publication date: February 19, 2009Inventors: Michael A. Giardello, Christopher M. Haar
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Publication number: 20090023865Abstract: A method of making a golf ball comprising the steps of providing a preform comprising an uncured polybutadiene composition; coating the preform with a cure-altering material comprising an organosulfur compound, an inorganic sulfide compound, or a metal-containing organosulfur compound; curing the coated preform at a predetermined temperature to form a crosslinked golf ball core having an outer surface having a first hardness and a geometric center having a second hardness greater than the first to define a negative hardness gradient; and forming a cover layer about the core to form the golf ball.Type: ApplicationFiled: March 27, 2008Publication date: January 22, 2009Inventors: Michael J. Sullivan, Brian Comeau, Douglas S. Goguen
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Patent number: 7235618Abstract: Embodiments of the present invention include a polypropylene homopolymer synthesized from a metallocene catalyst system and methods of forming the homopolymer, the homopolymer having an aluminum and chlorine recoverables value of less than 25 ppm and a xylene solubles of less than 1 wt % relative to the total weight of the homopolymer. The resulting homopolymer has other desirable properties such as a heat deflection temperature at 0.45 MPa of from 90° C. to 110° C., and a MWD value of from 1.7 to 5.0. These properties make embodiments of the homopolymer desirable for films, and in particular for capacitor films.Type: GrantFiled: August 22, 2001Date of Patent: June 26, 2007Assignee: ExxonMobil Chemical Patents Inc.Inventors: Chon-Yie Lin, Bernard Louis Bossaert, Michael Chia-Chao Chen, Susan Chia-Yu Yeh
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Patent number: 7202310Abstract: An alkenyl- or crosslinkable silyl-terminated vinyl polymer is provided. Such a functional group is introduced into its terminus at a high ratio, not via sulfur atoms. Those polymers can be prepared by polymerizing a vinyl monomer for obtaining a halogen-terminated vinyl polymer, and then substituting an oxy anion or carbanion having such a functional group for the terminal halogen of said polymer.Type: GrantFiled: January 26, 2004Date of Patent: April 10, 2007Assignee: Kaneka CorporationInventors: Kenichi Kitano, Yoshiki Nakagawa, Masato Kusakabe
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Patent number: 6803422Abstract: A highly uniform vinyl compound polymer-cross-copolymerized olefin/styrene/diene copolymer excellent in processability, mechanical properties, high temperature properties, compatibility and transparency, and its composition and a process for its production, are provided. This copolymer is a crossed polymer obtained by cross-copolymerizing an olefin/styrene/diene copolymer having a styrene content of from 0.03 mol % to 96 mol %, a diene content of from 0.0001 mol % to 3 mol % and the rest being an olefin, with an olefin/aromatic vinyl compound copolymer.Type: GrantFiled: February 21, 2002Date of Patent: October 12, 2004Assignee: Denki Kagaku Kogyo Kabushiki KaishaInventors: Toru Arai, Toshiaki Otsu, Masataka Nakajima
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Patent number: 6566453Abstract: A highly uniform vinyl compound polymer-cross-copolymerized olefin/styrene/diene copolymer excellent in processability, mechanical properties, high temperature properties, compatibility and transparency, and its composition and a process for its production, are provided. This copolymer is a crossed polymer obtained by cross-copolymerizing an olefin/styrene/diene copolymer having a styrene content of from 0.03 mol % to 96 mol %, a diene content of from 0.0001 mol % to 3 mol % and the rest being an olefin, with an olefin/aromatic vinyl compound copolymer.Type: GrantFiled: May 14, 2001Date of Patent: May 20, 2003Assignee: Denki Kagaku Kogyo Kabushiki KaishaInventors: Toru Arai, Masataka Nakajima, Toshiaki Otsu
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Patent number: 6559234Abstract: The present invention firstly provides a novel olefin/styrene/diene type cross-copolymer having excellent physical properties and mechanical properties, and a novel, efficient and economically excellent process for its production. Further, it provides an efficient and economically excellent process for producing various cross-copolymers such as an olefin/diene type cross-copolymer. The present invention secondly provides various resin compositions or processed products containing cross-copolymers, having problems of various conventional resin compositions or processed products solved and improved, as applications of cross-copolymers of the present invention.Type: GrantFiled: May 17, 2001Date of Patent: May 6, 2003Assignee: Denki Kagaku Kogyo Kabushiki KaishaInventors: Toru Arai, Masataka Nakajima, Toshiaki Otsu
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Publication number: 20020182169Abstract: One aspect of the present invention relates to novel compounds that can be used to prepare radiolabeled compounds in an effective manner. A second aspect of the present invention relates to a method of synthesizing radiolabeled compounds.Type: ApplicationFiled: March 4, 2002Publication date: December 5, 2002Inventors: Duncan H. Hunter, Mustafa Janabi
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Patent number: 6479609Abstract: A multi-stage process for preparing ethylene (co)polymers having broad molecular weight distributions is disclosed, said process comprising: (A) a first polymerization stage in which, in the presence of a Ti or V catalyst, a first ethylene polymer is prepared; (B) a treatment stage in which the catalyst used in the first stage is deactivated and in which a bridged bis-2-indenyl zirconocene is supported on the ethylene polymer produced in stage (A), optionally in the presence of a suitable cocatalyst; and (C) a second polymerization stage in which ethylene is polymerized in the presence of the product obtained from stage (B). Furthermore, polyethylene obtainable by the above process is disclosed, having intrinsic viscosity ranging from 0.5 to 6 dl/g, Mw/Mn>8 and cold xylene solubility<1.2 % wt.Type: GrantFiled: June 18, 2001Date of Patent: November 12, 2002Assignee: Basell Technology Company BVInventors: Tiziano Dall'Occo, Giovanni Baruzzi, Colin J. Schaverien
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Publication number: 20020161130Abstract: A highly uniform vinyl compound polymer-cross-copolymerized olefin/styrene/diene copolymer excellent in processability, mechanical properties, high temperature properties, compatibility and transparency, and its composition and a process for its production, are provided. This copolymer is a crossed polymer obtained by cross-copolymerizing an olefin/styrene/diene copolymer having a styrene content of from 0.03 mol % to 96 mol %, a diene content of from 0.0001 mol % to 3 mol % and the rest being an olefin, with an olefin/aromatic vinyl compound copolymer.Type: ApplicationFiled: February 21, 2002Publication date: October 31, 2002Applicant: Denki Kagaku Kogyo Kabushiki KaishaInventors: Toru Arai, Toshiaki Otsu, Masataka Nakajima
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Patent number: 6458895Abstract: A low compression, resilient golf ball having a center and a cover, made from a polybutadiene reaction product having polybutadiene, a cis-to-trans catalyst including a Group VIA element, such as at least one of sulfur, polymeric sulfur, selenium, or tellurium, and a free radical source. The reaction product typically has a first dynamic stiffness measured at −50° C. that is less than about 130 percent of a second dynamic stiffness measured at 0° C. A multi-layer golf ball having a center, at least one intermediate layer disposed concentrically about the center, and a cover. At least a portion of at least one of the center, intermediate layer, or both, are made from a reaction product including polybutadiene having a cis-to-trans catalyst that includes at least one elemental sulfur, polymeric sulfur, selenium, or tellurium component and a free radical source.Type: GrantFiled: December 16, 1999Date of Patent: October 1, 2002Assignee: Acushnet CompanyInventors: Mark N. Wrigley, David A. Bulpett, Jeffrey L. Dalton, Derek Ladd, Steven M. Gosetti, Murali Rajagopalan, Laurent C. Bissonnette
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Patent number: 6429271Abstract: Copolymers having copolymerized units of vinylidene fluoride, perfluoro(alkyl vinyl) ether, 2-hydropentafluoropropene, and, optionally, tetrafluoroethylene, exhibit excellent low temperature properties and processability when cured with polyhydroxy compounds or amines.Type: GrantFiled: September 20, 2001Date of Patent: August 6, 2002Assignee: DuPont Dow Elastomers, L.L.C.Inventor: Walter Werner Schmiegel
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Patent number: 6329469Abstract: Copolymers having copolymerized units of vinylidene fluoride, perfluoro(alkyl vinyl) ether, 2-hydropentafluoropropene, and, optionally, tetrafluoroethylene, exhibit excellent low temperature properties and processability when cured with polyhydroxy compounds or amines.Type: GrantFiled: August 20, 1999Date of Patent: December 11, 2001Assignee: DuPont Dow Elastomers, L.L.C.Inventors: Stephen Bowers, Walter Werner Schmiegel
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Patent number: 6326436Abstract: Fluoroelastomers containing copolymerized units of vinylidene fluoride, perfluoro(alkyl vinyl)ether, 2-hydropentafluoropropene, and, optionally, tetrafluoroethylene, and having an iodine atom present at some polymer chain ends, exhibit excellent low temperature properties and processability when dual cured with both polyhydroxy compounds and organic peroxides.Type: GrantFiled: December 1, 2000Date of Patent: December 4, 2001Assignee: DuPont Dow Elastomers, L.L.C.Inventor: Stephen Bowers
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Patent number: 6291592Abstract: A low compression, resilient golf ball having a center and a cover, made from a polybutadiene reaction product having polybutadiene, a cis-to-trans catalyst including an aromatic component, and a free radical source. The reaction product typically has a first dynamic stiffness measured at −50° C. that is less than about 130 percent of a second dynamic stiffness measured at 0° C. A multi-layer golf ball having a center, at least one intermediate layer disposed concentrically about the center, and a cover. At least a portion of at least one of the center, intermediate layer, or both, are made from a reaction product including polybutadiene having a cis-to-trans catalyst that includes at least one aromatic component and a free radical source.Type: GrantFiled: December 10, 1999Date of Patent: September 18, 2001Assignee: Acushnet CompanyInventors: David A. Bulpett, Laurent Bissonnette, Jeffrey L. Dalton, Derek Ladd, Steven M. Gosetti, Murali Rajagopalan, Mark N. Wrigley
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Patent number: 6271314Abstract: Novel solid supported anionic polymerization initiators that are multiply metalated with Group IA alkali metal atoms are provided and employed to produce extremely high molecular weight branched diene polymers. The initiators are prepared by metalating a particle comprising a thermoplastic polymer or a cured elastomer in the presence of a polar coordinator. The polymers obtained by anionic polymerization employing the initiators are multiply branched, with a polymer chain covalently attached to the particle at virtually every metalation site. The macro-branched polymers exhibit desirable properties, such as an extremely high molecular weight, a controlled molecular weight distribution, Tg and vinyl content, and the ability to readily absorb hydrocarbon solvents and oils. The polymers are easily compounded to form vulcanizable elastomeric compounds and articles that have excellent resistance to wear and tear and exhibit reduced hysteresis properties.Type: GrantFiled: May 11, 2000Date of Patent: August 7, 2001Assignee: Bridgestone CorporationInventors: William L. Hergenrother, William M. Cole, Theodore J. Knutson, Georg G. A. Böhm
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Patent number: 6262195Abstract: A multi-stage process for preparing ethylene (co)polymers having broad molecular weight distributions is disclosed, said process comprising: (A) a first polymerization stage in which, in the presence of a Ti or V catalyst, a first ethylene polymer is prepared; (B) a treatment stage in which the catalyst used in the first stage is deactivated and in which a bridged bis-2-indenyl zirconocene is supported on the ethylene polymer produced in stage (A), optionally in the presence of a suitable cocatalyst; and (C) a second polymerization stage in which ethylene is polymerized in the presence of the product obtained from stage (B). Furthermore, polyethylene obtainable by the above process is disclosed, having intrinsic viscosity ranging from 0.5 to 6 dl/g, Mw/Mn>8 and cold xylene solubility<1.2% wt.Type: GrantFiled: March 9, 1999Date of Patent: July 17, 2001Assignee: Montell Technology Company bvInventors: Tiziano Dall'Occo, Giovanni Baruzzi, Colin J. Schaverien
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Patent number: 6248837Abstract: Polyolefin diblock copolymers are prepared via a chain transfer reaction with a borane dimer compound during a transition metal-catalyzed olefin polymerization in a process that resembles a transformation from transition metal coordination polymerization to free radical polymerization via a borane end group. The polyolefin diblock copolymers may be represented by the following formula: (Transition Metal Prepared Polyolefin)-b-(Free Radical Prepared Polymer), wherein the polyolefin segment is a homo-, co- and ter-polymer prepared by transition metal (especially metallocene catalyst) coordination polymerization of at least one olefin, and the free radical prepared polymer segment is prepared by free radical polymerization of at least one vinyl monomer, such as styrene, maleic anhydride, acrylates, methacrylates and their mixtures. The resulting diblock copolymers are useful as the interfacial materials to improve the interaction between polyolefins and other materials.Type: GrantFiled: July 21, 1999Date of Patent: June 19, 2001Assignee: The Penn State Research FoundationInventors: Tze-Chiang Chung, Guangxue Xu
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Publication number: 20010000343Abstract: Fluoroelastomers containing copolymerized units of vinylidene fluoride, perfluoro(alkyl vinyl) ether, 2-hydropentafluoropropene, and, optionally, tetrafluoroethylene, and having an iodine atom present at some polymer chain ends, exhibit excellent low temperature properties and processability when dual cured with both polyhydroxy compounds and organic peroxides.Type: ApplicationFiled: December 1, 2000Publication date: April 19, 2001Inventor: Stephen Bowers
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Patent number: 6207756Abstract: This invention relates to polyolefin polymer dispersions having a semicrystalline plastic (SP) component and an amorphous elastomer (AE) component. The polymer dispersions of this invention are characterized by a continuous phase containing a discontinuous phase (dispersed phase) as seen by FIG. 2. Embodiments of this invention include either: 1) a discontinuous phase composed of the SP component dispersed within a continuous phase composed of the amorphous elastomer component and/or, 2) a discontinuous phase composed of the amorphous elastomer dispersed within a continuous phase composed of the SP component.Type: GrantFiled: March 1, 1999Date of Patent: March 27, 2001Assignee: Exxon Chemical Patents, Inc.Inventors: Sudhin Datta, Charles C. Cozewith, Bruce A. Harrington
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Patent number: 6136200Abstract: A composition for the detackification and clarification of acid and alkaline paint and lacquer waste waters and paint spray booth wastes, comprising:an inorganic-organic and/or organic adduct alloy polymer composition having the formula:A.multidot.B.sup.+ .multidot.D.sup.+wherein: A=[(SiO.sub.2 /Me.sup.I.sub.2 O).sub.u Me.sup.II.sub.m Me.sub.m.sup.III(OH).sbsp.p.sup.(SO.sbsp.4.sup.).sbsp.y.sup.(Aci) (2m+3n)-p-2y].sub.rwhere r=1 to 98% bw; u=0 to 10% bw; ##STR1## where: x=0 to 98% bw; Z is a divalent substituted or unsubstituted aliphatic, cycloaliphatic, heterocyclic or aromatic radicalD.sup.+ =(PQAM).sub.wwherew=2 to 98% b.w. of polyquaternized polymer (PQAM)Me.sub.m.sup.II is selected from the divalent cationic group comprising: Mg, Zn, Ca, and Fe.sup.2+m=0 to 5Me.sub.n.sup.III is a tri-or more valent metal selected from the group comprising: Fe, Al, and Al--Zn complexes;n=1 to 20Aci is selected from the monovalent anionic group comprising Cl.sup.-, Br.sup.-, I.sup.-, NO.sub.3 --, H.sub.2 PO.sub.4 --, CH.Type: GrantFiled: March 11, 1994Date of Patent: October 24, 2000Assignee: Polymer Research CorporationInventor: John J. Waldmann
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Patent number: 5929169Abstract: This invention provides curable fluoroelastomer compositions comprising: (a) a fluorine-containing polymer or blend of fluorine-containing polymers each comprising interpolymerized units derived from one or more fluorine-containing ethylenically unsaturated monomers; (b) at least one organo-onium compound such as those selected from the group consisting of ammonium, arsonium, phosphonium, stibonium, amino-phosphonium, phosphorane (e.g. triarylphosphorane), iminium, and sulfonium compounds; and (c) one or more aryl, allyl or alkyl carbonate-blocked compounds as crosslinking agents. Methods of curing fluoroelastomer compositions, and articles made therefrom are also described.Type: GrantFiled: November 26, 1997Date of Patent: July 27, 1999Assignee: Dyneon LLCInventors: Naiyong Jing, Robert E. Kolb
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Patent number: 5902857Abstract: Curing systems for fluoroelastomers curable by peroxidic route which comprise bromine, optionally iodine, the bromine always being higher than iodine, comprising as essential elements:(I) a curing agent comprising a bis-olefin having general formula: ##STR1## wherein: R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, equal to or different from each other, are H or alkyl C.sub.1 -C.sub.5 ; Z is a linear or branched alkylenic or cycloalkylenic radical C.sub.1 -C.sub.18, optionally containing oxygen atoms, or a (per)fluoropolyoxyalkylenic radical.(II) a metallorganic hydride of formula: ##STR2## wherein: M is selected from Sn, Si, Ge, Pb; x is an integer from 1 to 3; y, z are zero or integers from 1 to 3, with the proviso y+z=4-x; w is an integer from 1 to 3; the R groups, equal to or different from each other, are selected from: alkyls C.sub.1 -C.sub.4, aryls C.sub.6 -C.sub.12, arylalkyls and alkylaryls C.sub.7 -C.sub.14, optionally containing nitrile and/or hydroxyl groups.Type: GrantFiled: October 18, 1996Date of Patent: May 11, 1999Assignee: Ausimont S.p.A.Inventors: Ivan Wlassics, Vito Tortelli, Walter Navarrini, Margherita Albano
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Patent number: 5877336Abstract: Triorgano substituted-tin lithium initiators are made in a dimethyl ether solvent. The substitution of dimethyl ether as the solvent for the traditional tetrahydrofuran solvent results in an initiator for anionic polymerizations that can produce less 1,2-vinyl repeat units. The dimethyl ether is also easier to remove from the polymerization media because it has a boiling point at one atmosphere of minus 24.8.degree. C. and thus is a gas at 25.degree. C.Type: GrantFiled: December 31, 1996Date of Patent: March 2, 1999Assignee: Bridgestone CorporationInventors: William L. Hergenrother, Tristram W. Bethea
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Patent number: 5824749Abstract: A fluorine-containing elastomer composition, which comprises a terpolymer of tetrafluoroethylene, perfluoro(lower alkyl vinyl ether) or perfluoro (lower alkoxy-lower alkyl vinyl ether) and cross-linkable cyano group-containing (perfluorovinylether), and a bis(aminothiophenol) compound represented by the following general formula as a cross-linking agent: ##STR1## wherein A is an alkylidene group having 1 to 6 carbon atoms, a perfluoroalkylidene group having 1 to 10 carbon atoms, a SO.sub.2 group, an O atom, a CO group or a carbon-carbon bond capable of directly bonding two benzene rings and one of X and Y is an amino group, while the other is a mercapto group, can produce cross-linked fluororubber moldings having an improved compression set.Type: GrantFiled: October 18, 1996Date of Patent: October 20, 1998Assignee: Nippon Mektron, LimitedInventors: Takehiro Sonoi, Haruyoshi Tatsu, Lev Solomonovich, deceased, Valerii Romanovich Polishchuk, deceased, Satoru Saito
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Patent number: 5728773Abstract: This invention provides curable fluoroelastomer compositions comprising: (a) a fluorine-containing polymer or blend of fluorine-containing polymers each comprising interpolymerized units derived from one or more fluorine-containing ethylenically unsaturated monomers; (b) at least one organo-onium compound such as those selected from the group consisting of ammonium, arsonium, phosphonium, stibonium, amino-phosphonium, phosphorane (e.g. triarylphosphorane), iminium, and sulfonium compounds; and (c) one or more aryl, allyl or alkyl carbonate-blocked compound as a crosslinking agents. Methods of curing fluoroelastomer compositions, and articles made therefrom are also described.Type: GrantFiled: February 21, 1997Date of Patent: March 17, 1998Assignee: Minnesota Mining and Manufacturing CompanyInventors: Naiyong Jing, Robert E. Kolb
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Patent number: 5663260Abstract: A process for preparing hyperbranched polymers from AB monomers and C monomers Using a self-constructing approach is disclosed along with the hyperbranched polymers of a living-like character produced by such process.Type: GrantFiled: November 8, 1994Date of Patent: September 2, 1997Assignee: Cornell Research Foundation, Inc.Inventors: Jean M.J. Frechet, Sadahito Aoshima
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Patent number: 5447993Abstract: Nitrile containing perfluoroelastomers are cured by a combination of a peroxide, a coagent, and a catalyst which causes crosslinks to form using the nitrile groups. The method is relatively fast and economical, and gives vulcanizates which have excellent high temperature properties. Triphenyltin hydroxide is an exceptionally good catalyst for the formation of crosslinks from nitrile groups in perfluoroelastomers.Type: GrantFiled: April 19, 1994Date of Patent: September 5, 1995Assignee: E. I. Du Pont de Nemours and CompanyInventor: Anestis L. Logothetis
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Patent number: 5405901Abstract: A gas phase process for the production of a polyethylene blend comprising contacting ethylene and at least one alpha-olefin comonomer having 3 to 8 carbon atoms with a magnesium/titanium based catalyst system including an activator and a cocatalyst in each of two fluidized bed reactors connected in series, under polymerization conditions, with the provisos that:(a) the mixture of ethylene copolymer matrix and active catalyst formed in the first reactor in the series is transferred to the second reactor in the series;(b) other than the active catalyst referred to in proviso (a) and the cocatalyst referred to in proviso (e), no additional catalyst is introduced into the second reactor;(c) in the first reactor in which a low melt index copolymer is made:(1) the alpha-olefin is present in a ratio of about 0.01 to about 0.4 mole of alpha-olefin per mole of ethylene;(2) optionally, hydrogen is present in a ratio of about 0.001 to about 0.Type: GrantFiled: July 6, 1994Date of Patent: April 11, 1995Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Paul T. Daniell, Michael W. Tilston, Thomas E. Spriggs, Burkhard E. Wagner, Arakalgud V. Ramamurthy
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Patent number: 5310810Abstract: An improved process for the preparation of segmented copolymers of polyolefins and poly(methacrylates) is disclosed.Type: GrantFiled: March 16, 1993Date of Patent: May 10, 1994Assignee: Rohm and Haas CompanyInventors: John Natoli, Min-Yin Chang
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Patent number: 5294352Abstract: A composition for the detackification and clarification of acid and alkaline paint and lacquer waste waters and paint spray booth wastes, comprising:an inorganic-organic and/or organic adduct alloy polymer composition having the formula:A.multidot.B.sup.+ .multidot.D.sup.+wherein:A=[(SiO.sub.2 /Me.sup.I.sub.2 O).sub.u Me.sup.II.sub.m Me.sub.m.sup.III(OH) p.sup.(SO 4.sup.) y.sup.(Aci) (2m+3n)-p-2y].sub.4wherer=1 to 98% bw;u=0 to 10% bw; ##STR1## where: x=0 to 98% bw; Z is a divalent substituted or unsubstituted aliphatic, cycloaliphatic, heterocyclic or aromatic radicalD.sup.+ (PQAM).sub.wwherew=2 to 98% b.w. of polyquaternized polymer (PQAM)Me.sub.m.sup.II is selected from the divalent cationic group comprising: Mg, Zn, Ca, and Fe.sup.2+m=0 to 5Me.sub.n.sup.III is a tri-or more valent metal selected from the group comprising: Fe, Al, and Al-Zn complexes;n=1 to 20Aci is selected from the monovalent anionic group comprising Cl.sup.-, Br.sup.-, I.sup.-, NO.sub.3 --, H.sub.2 PO.sub.4 --, CH.sub.3 COO.sup.-, OH.Type: GrantFiled: April 15, 1993Date of Patent: March 15, 1994Inventor: John J. Waldmann
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Patent number: 5268439Abstract: An anionic polymerization initiator comprising the reaction product of a an organatin halide and lithium in a suitable solvent. Elastomeric polymers prepared with these initiators have tin containing functional groups on substantially every polymer chain and provide vulcanizable rubber compounds exhibiting reduced hysteresis. Articles such as tires, produced with low hysteresis elastomeric polymers have lower rolling resistance. Methods are also provided for preparing the initiators and the elastomers having reduced hysteresis properties.Type: GrantFiled: January 2, 1991Date of Patent: December 7, 1993Assignee: Bridgestone/Firestone, Inc.Inventors: William L. Hergenrother, Tristram W. Bethea, John M. Doshak
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Patent number: 5264494Abstract: A process for grafting halogenated butyl rubbers with polymers based on conjugated diolefin monomers is provided which comprises mixing a first solution of halogenated butyl rubber with a second solution of a living alkali metal terminated polymer based on conjugated diolefin monomers and having a number average molecular weight of at least 40,000 at a temperature of from about -10.degree. C. to about 80.degree. C. for a period of time of from about 30 minutes to about 24 hours whereby the graft copolymer is formed. Rubber compositions comprising the halogenated butyl rubber graft copolymers upon vulcanization exhibit improved abrasion resistance and wet skid resistance while a desirable balance of other physical properties is maintained.Type: GrantFiled: May 15, 1991Date of Patent: November 23, 1993Assignee: Polysar Rubber CorporationInventors: Chai H. Ho, William Hopkins
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Patent number: 5192616Abstract: A new class of macromolecular monomers (hereinafter called "macromonomers") comprises the polymerized product of at least one of an ethenylarene and a conjugated diene monomer, the product having a terminal omega-alkenyl group of at least four carbon atoms. The novel macromonomer can be copolymerized with ethylene and alpha-olefin monomers to form graft copolymers having pendant side-chains. The graft copolymers are useful as coating and molding compositions. The macromonomers can be useful as coatings on chromatographic supports for analytical and preparative separation of chemical mixtures.Type: GrantFiled: October 10, 1991Date of Patent: March 9, 1993Assignee: Minnesota Mining and Manufacturing CompanyInventor: Gaddam N. Babu
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Patent number: 5104952Abstract: A new class of macromolecular monomers (hereinafter called "macromonomers") comprises the polymerized product of at least one of an ethenylarene and a conjugated diene monomer, the product having a terminal omega-alkenyl group of at least four carbon atomes. The novel macromonomer can be copolymerized with ethylene and alpha-olefin monomers to form graft copolymers having pendant side-chains. The graft copolymers are useful as coating and molding compositions. The macromonomers can be useful as coatings on chromatographic supports for analytical and preparative separation of chemical mixtures.Type: GrantFiled: November 15, 1990Date of Patent: April 14, 1992Assignee: Minnesota Mining and Manufacturing CompanyInventor: Gaddam N. Babu
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Patent number: 5032653Abstract: A method is provided for the direct synthesis of novel polymeric materials functionalized with desirable nitrogen-containing functional groups such as terminal azido, cyano, carbonylamino or thiocarbonylamino groups. Polymerization and functionalization occur in a substantially simultaneous manner. All necessary reactants for the functionalization are present when polymerization is initiated. The nitrogen-containing functional group is provided as a part of a molecule having a release moiety which is preferably resonance stabilized or a tertiary alkyl type and which acts to aid the nitrogen-containing species in functioning as a leaving group.Type: GrantFiled: June 28, 1988Date of Patent: July 16, 1991Assignee: Exxon Chemical Patents, Inc.Inventors: Herve M. Cheradame, Robert D. Lundberg, Frank J. Chen, Jean de la Croix Habimana
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Patent number: 5019634Abstract: Group Transfer Polymerization (GTP) process for preparing a "living" polymer, the process comprising contacting under polymerizing conditions in a polymerization medium, at least one acrylic or maleimide monomer with an initiator which is a tetracoordinate organosilicon, organotin or organogermanium compound having at least one GTP initiating site and a catalyst which is or is a source of an anion selected from the group consisting of bifluoride, fluoride, cyanide, azide or a selected oxyanion, or a selected Lewis acid or Lewis base, the process further characterized in that the initiator or the anion or Lewis acid catalyst is chemically attached (grafted) to a solid support that is insoluble in the polymerization medium.Type: GrantFiled: October 6, 1989Date of Patent: May 28, 1991Assignee: E. I. Du Pont de Nemours and CompanyInventors: Fritz P. Boettcher, Ira B. Dicker, Richard C. Ebersole, Walter R. Hertler
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Patent number: 4883734Abstract: Disclosed are a toner for development of electrostatic image, comprising as the main component a resin obtained by allowing a polymer containing a polymer component with low molecular weight and a polymer component with high molecular weight, at least the polymer component with low molecular weight containing a carboxylic acid component, to react with a polyvalent metal compound, and a method of fixing a toner image employing the toner described above.According to the present invention, there can be provided a toner for development of electrostatic image which has more improved fixability without lowering the anti-off-set property already improved, and also which can be prepared with good reproducibility without causing gelation to occur although the metal compound may be formulated therein, and can be improved in fixability without making charging characteristics unstable and at the same time without bringing about lowering in anti-off-set property, and thus an excellent toner image can be fixed.Type: GrantFiled: March 1, 1988Date of Patent: November 28, 1989Assignees: Konica Corporation, Sekisui Kagaku Kogyo KabushikiInventors: Satoru Ikeuchi, Mitutaka Arai, Yuki Okuyama, Hideki Yuri, Tomoo Shiohara, Yasuhiko Oyama
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Patent number: 4880887Abstract: In curing dental resins, polymerizable compounds having at least one ethylenically unsaturated double bond, such as mono- or poly-functional acrylates or methacrylates are polymerized in the presence of N-cyclohexy-5-ethylpyrimidinetrione, a specific organometallic compound typically including acetylacetone copper or lithium acetate, and an organohalogen compound. The amounts of the ethylpyrimidinetrione, organometallic and organohalogen compounds used are respectively 0.1 to 10 parts by weight, 0.001 to 0.2 parts by weight and 0.1 to 5 parts by weight with respect to the polymerization compounds.Type: GrantFiled: March 3, 1988Date of Patent: November 14, 1989Assignee: G-C Toshi Kogyo CorporationInventor: Akira Hasegawa