With Hydrocarbon Monomer Patents (Class 526/307.8)
  • Patent number: 10421230
    Abstract: The present invention relates to a method for manufacturing a polymer product with super- or highly hydrophobic characteristics, preferably in the form of a film. Also methods for the manufacturing of a laminate and a polymer coated paper or board product, respectively, both having said characteristics, are disclosed. The present invention also relates to products obtainable by said methods and uses thereof.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: September 24, 2019
    Assignee: Stora Enso OYJ
    Inventors: Isto Heiskanen, Nina Miikki
  • Publication number: 20150025213
    Abstract: Here is provided a charge control resin which is prompt in charge rising up, excellent in electrostatic charging propensity and easy in manufacturing. This charge control resin contains a polymer as an active ingredient having a constituent unit represented by following Formula (1) in the Formula (1), R1 is independent of one another, and is a hydrogen atom, a hydroxyl group, a halogen atom, a carboxy-containing group, a straight-chained or branched alkyl group having 1-18 carbon atoms, or a straight-chained or branched alkoxy group having 1-18 carbon atoms; R2 is a hydrogen atom, a hydroxyl group, a halogen atom, a carboxy-containing group, a straight-chained or branched alkyl group having 1-18 carbon atoms, or a straight-chained or branched alkoxy group having 1-18 carbon atoms; g is a number of 1-3; h is a number of 1-3; and M is a hydrogen atom, an alkali metal, a straight-chained or branched alkyl group having 1-18 carbon atoms, an ammonium radical or a mixture of any of these.
    Type: Application
    Filed: October 6, 2014
    Publication date: January 22, 2015
    Applicant: ORIENT CHEMICAL INDUSTRIES CO., LTD.
    Inventors: Masashi YASUMATSU, Kaori Inoue, Satoko Ozaki
  • Patent number: 8894816
    Abstract: Surfactant mediated, free radical initiated emulsion/dispersion polymerization of n-vinylformamide with styrene or substituted styrene copolymers, and its subsequently hydrolyzed products bearing formamide, amine and styrenic functionality are disclosed. Processes for polymerization, polymer composition, and hydrolysis of such polymers are also disclosed. These polymers bearing cationic functionality can be used in papermaking applications as dry strength additives, wet strength additives, retention aids, drainage aids, sizing agent, sizing promoter and pitch and stickies control agents.
    Type: Grant
    Filed: November 1, 2012
    Date of Patent: November 25, 2014
    Assignee: Solenis Technologies, L.P.
    Inventor: Sachin Borkar
  • Patent number: 8889808
    Abstract: Farnesene interpolymer comprises units derived from a farnesene (e.g., ?-farnesene or ?-farnesene) and units derived from at least one vinyl monomer. The farnesene interpolymer can be prepared by copolymerizing the farnesene and at least one vinyl monomer in the presence of a catalyst. In some embodiments, the farnesene is prepared from a sugar by using a microorganism. In other embodiments, the at least one vinyl monomer is ethylene, an ?-olefin, or a substituted or unsubstituted vinyl halide, vinyl ether, acrylonitrile, acrylic ester, methacrylic ester, acrylamide or methacrylamide, or a combination thereof.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: November 18, 2014
    Inventor: Derek James McPhee
  • Publication number: 20140329715
    Abstract: The present invention relates to the provision of polymers that are selected to have either; surface properties that allow protozoa, in particular Cryptosporidium and Giardia, to bind to the polymer; or have surface properties that are repellent to the binding of these protozoa. Methods for identifying suitable polymers are provided. Products comprising, consisting of or coated with the polymers of the present invention are also provided, as well as methods of treating or monitoring water employing polymers of the present invention.
    Type: Application
    Filed: November 29, 2012
    Publication date: November 6, 2014
    Inventors: Helen Bridle, Mark Bradley, Mei Wu
  • Patent number: 8658749
    Abstract: Biocompatible polymers are manufactured to include an ammo acid mimetic monomer and one or more hydrophobic acrylate monomers. The amino acid mimetic monomers are selected to mimic the side chain of the amino acids asparagine or glutamine. The amino acid mimetic monomer can be a methacryloyl or acryloyl derivative of 2-hydroxyacetamide, 3-hydroxypropionamide, alaninamide, lactamide, or glycinamide. These amide functional groups offer the advantage of moderate hydrophilicity with little chemical reactivity. The amino acid mimetic monomer can be copolymerized with one or more hydrophobic acrylate monomers to obtain desired coating properties.
    Type: Grant
    Filed: October 8, 2009
    Date of Patent: February 25, 2014
    Assignee: Abbott Laboratories
    Inventor: Stephen Pacetti
  • Patent number: 8592541
    Abstract: Gypsum wallboard can be made lighter and less dense, without sacrificing strength, by adding to the gypsum slurry used in making the board a styrene butadiene polymer latex substantially stable against divalent ions in which the styrene butadiene polymer includes at least 0.25 wt. % of an ionic monomer.
    Type: Grant
    Filed: February 1, 2011
    Date of Patent: November 26, 2013
    Assignee: OMNOVA Solutions Inc.
    Inventor: Ira John Westerman
  • Patent number: 8491770
    Abstract: Disclosed herein are functionalized polymers comprising ethylene and substituted ethylene segments. These functionalized polymers are useful as film forming resins in cathodic electrocoating compositions. Also disclosed herein are aqueous dispersion compositions comprising the functionalized polymers and a process for coating various electrically conductive substrates.
    Type: Grant
    Filed: December 10, 2010
    Date of Patent: July 23, 2013
    Assignee: Axalta Coating Systems IP Co. LLC
    Inventors: Stephen Neal Bair, Simona Percec, Susan H. Tilford
  • Patent number: 8399551
    Abstract: An embodiment of the present invention is a nanocomposite comprising a clay and an elastomer comprising at least C2 to C10 olefin derived units; wherein the elastomer also comprises functionalized monomer units pendant to the elastomer. Desirable embodiments of the elastomer include poly(isobutylene-co-p-alkylstyrene) elastomers and poly(isobutylene-co-isoprene) elastomers, which are functionalized by reacting free radical generating agents and unsaturated carboxylic acids, unsaturated esters, unsaturated imides, and the like, with the elastomer. The clay is exfoliated in one embodiment by the addition of exfoliating agents such as alkyl amines and silanes to the clay. The composition can include secondary rubbers such as general purpose rubbers, and curatives, fillers, and the like. The nanocomposites of the invention have improved air barrier properties such as are useful for tire innerliners and innertubes.
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: March 19, 2013
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Caiguo Gong, Anthony Jay Dias, Andy Haishung Tsou, Beverly Jean Poole, Kriss Randall Karp
  • Patent number: 7964686
    Abstract: Aqueous treatment composition for use as anti-scalant and dispersant. The composition includes a polymer containing low amounts of sulfonate that prove as effective in carbonate and phosphate inhibition as polymers containing much higher amounts of sulfonate.
    Type: Grant
    Filed: April 13, 2007
    Date of Patent: June 21, 2011
    Assignee: Akzo Nobel N.V.
    Inventors: Klein A. Rodrigues, Adrian Zuberbuehler, Stuart Holt, Kevin Beairsto
  • Patent number: 7879965
    Abstract: A polymer latex suitable for use in gypsum wallboard or other applications. The polymer latex is a styrene butadiene latex that is substantially stable against divalent ions. The polymer latex includes styrene, butadiene, and an ionic monomer comprised of a 2-acrylamido-2-methyl propanesulfonic acid salt. The polymer latex may also include hydrophilic adjunct comonomers. The latex includes at least 0.25 wt. % of the ionic monomer.
    Type: Grant
    Filed: April 4, 2008
    Date of Patent: February 1, 2011
    Assignee: OMNOVA Solutions Inc.
    Inventor: Ira John Westerman
  • Publication number: 20100203141
    Abstract: Preferred embodiment stimuli-responsive low solubility copolymer hydrogel compositions of the invention include polymerized N-isopropylacrylamide and water insoluble monomer or oligomer repeating units. The repeating units are arranged within the polymer backbone of the copolymer hydrogel. In a preferred fabrication method, precursors of N-isopropylacrylamide and precursors of the water insoluble monomer of oligomer are solved in a liquid solvent to form a solution in a container. An initiator is added to the solution. Gas is bubbled through the solution, and the container is sealed. The solution is stirred while heating to a polymerization temperature and polymerization is permitted to complete to form the copolymer hydrogel composition.
    Type: Application
    Filed: February 10, 2010
    Publication date: August 12, 2010
    Applicant: The Board of Trustees of the University of Illinois
    Inventors: Alexander L. Yarin, Yiyun Zhang
  • Patent number: 7763688
    Abstract: The present invention describes the synthesis of solvent soluble copolymers containing multiple unsaturations. These copolymers contain reactive vinyl groups, which can be further reacted in a second stage polymerization. The process involves copolymerization of a vinyl monomer with an inclusion complex of a monomer having multiple unsaturations and a cyclic macromolecular compound to yield soluble polymers. These polymers may be cast into films, membranes or may be converted in micro or nanoparticles and then crosslinked in a second step polymerization.
    Type: Grant
    Filed: October 24, 2008
    Date of Patent: July 27, 2010
    Assignee: Council of Scientific and Industrial Research
    Inventors: Mohan G. Kulkarni, Rohini N. Karmalkar, Sunita S. Satav
  • Publication number: 20100167409
    Abstract: Polymers suitable for binding aflatoxins for use for in solid phase extraction of aflatoxins and immobilisation of aflatoxins in solid phase extraction (SPE) cartridges for qualitative or quantitative analysis of aflatoxins in solutions extracted from foodstuffs or feedstuffs are prepared from allylamine; methylene bisacrylamide (MBAA); acrylamide, ethyleneglycol-methacrylate phosphate (EGMP); 4-vinyl pyridine; or 2-acrylamido-2-methylpropane-sulfonic acid (AMPSA) monomers. Preferred embodiments are polymers containing acrylamide moieties such as acrylamide and MBAA. The polymers are preferably cross-linked, for example using ethylene glycol dimethacrylate (EGDMA) or divinyl benzene (DVB), and macroporous.
    Type: Application
    Filed: February 8, 2008
    Publication date: July 1, 2010
    Inventors: Raymond Coker, Olena Piletska, Sergey Piletsky
  • Patent number: 7714038
    Abstract: Polyolefin waxes bearing (meth)acrylate groups, process for preparing them and their use.
    Type: Grant
    Filed: March 2, 2006
    Date of Patent: May 11, 2010
    Assignee: BASF Aktiengesellschaft
    Inventors: Dietmar Haering, Bernhard Hauer, Thomas Pfeiffer, Andreas Fechtenkoetter, Harald Larbig, Erich Beck
  • Patent number: 7649067
    Abstract: The present invention relates to a vinyl ester based polymer latex composition obtainable by free radical emulsion polymerization in substantial absence of a protective colloid and in the presence of no or small amounts of a surfactant, and to a process of making the same. The invention further pertains to a dispersion incorporating said vinyl ester based polymer latex composition, products comprising said dispersion, and various uses of the dispersion.
    Type: Grant
    Filed: October 19, 2005
    Date of Patent: January 19, 2010
    Assignee: Wacker Polymers, L.P.
    Inventors: Helmut Zecha, Holger Kuenstle
  • Patent number: 7592408
    Abstract: The invention is directed to olefin copolymers composed of nonhydrolyzable monomer units and hydrolyzable monomer units, the latter resulting from copolymerization of monomers containing a linkage that is hydrolytically cleavable in the presence of aqueous base or aqueous acid. Generally, the hydrolyzable monomer units represent a significant fraction of the copolymer, such that upon hydrolysis, a substantial portion of the copolymer is degraded into low molecular weight fragments. Also provided are degradable articles that are at least partially composed of a degradable copolymer in which hydrolyzable monomer units represent at least 20 mole % of the copolymer.
    Type: Grant
    Filed: May 28, 2008
    Date of Patent: September 22, 2009
    Assignee: SRI International
    Inventors: Robert B. Wilson, Jr., Sigridur Jonasdottir
  • Publication number: 20090221729
    Abstract: This invention provides a water-soluble macromonomer having terminal unsaturation obtained by polymerization of monomers in the presence of inclusion complex of chain transfer agent in aqueous system. Hydrophobic chain transfer agent AMSD forms an inclusion complex with methylated cyclodextrin. The complexation enhances its solubility in water and enables the polymerization of water-soluble monomers in aqueous medium. After polymerization cyclodextrin is removed and the macromer with terminal unsaturation obtained can be used further for copolymerization with any vinyl monomer.
    Type: Application
    Filed: March 28, 2007
    Publication date: September 3, 2009
    Applicant: COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH
    Inventors: Mohan Gopalkrishna Kulkarni, Prerana Maruti Patil
  • Patent number: 7524905
    Abstract: Substantially linear copolymers derived from at least one acyclic aliphatic olefin monomer and at least one nitrogen containing vinyl monomer, wherein the at least one nitrogen containing vinyl monomer is according to Formula (I) wherein R19 is selected —C?C; and —C(O)—C?C; wherein R20 and R21 are independently selected from H, an alkyl group, an alkenyl group, an alkynyl group, an aryl group, a biphenyl group, a carboxylate group, a carboxyalkyl group, a carboxyarylalkyl group, an alkoxy group, an alkenyloxy group, an alkynyloxy group, an aryloxy group, an alkoxycarbonyl group, and derivatives thereof. Also disclosed are methods of making such copolymers using late transition metal catalyst complexes.
    Type: Grant
    Filed: February 20, 2008
    Date of Patent: April 28, 2009
    Assignee: Rohm and Haas Company
    Inventors: David M. Conner, Brian Leslie Goodall, Lester Howard McIntosh, III
  • Patent number: 7482417
    Abstract: A novel (meth)acrylamide polymer capable of forming a papermaking chemical exhibiting an excellent paper strengthening effect, drainage improvement effect, retention improvement effect, plybond strength enhancing effect, surface strength enhancing effect, and sizing improvement effect in acid, neutral, or alkaline papermaking systems, as well as a method for manufacturing this polymer, and paper that makes use of this polymer and has excellent bursting strength, internal bond strength, and other such properties is provided. This is a (meth)acrylamide polymer produced by polymerizing a monomer (a) expressed by the following general formula 1, the following monomer (b), and the following monomer (c): (a) general formula 1: (b) a (meth)acrylamide; (c) an ionic monomer other than monomer (a) expressed by general formula 1 above.
    Type: Grant
    Filed: February 21, 2003
    Date of Patent: January 27, 2009
    Assignee: Seiko PMC Corporation
    Inventors: Toshitsugu Kiyosada, Akira Endou, Satoru Iwata, Masatomi Ogawa
  • Patent number: 7399817
    Abstract: The invention is directed to olefin copolymers composed of nonhydrolyzable monomer units and hydrolyzable monomer units, the latter resulting from copolymerization of monomers containing a linkage that is hydrolytically cleavable in the presence of aqueous base or aqueous acid. Generally, the hydrolyzable monomer units represent a significant fraction of the copolymer, such that upon hydrolysis, a substantial portion of the copolymer is degraded into low molecular weight fragments. Also provided are degradable articles that are at least partially composed of a degradable copolymer in which hydrolyzable monomer units represent at least 20 mole % of the copolymer.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: July 15, 2008
    Assignee: SRI International
    Inventors: Robert B. Wilson, Jr., Sigridur Jonasdottir
  • Patent number: 7312291
    Abstract: A new family of concrete admixture additives can be derived from reacting a mixture of olefins/cyclic olefins-maleic anhydride copolymers and methoxy polyethylene glycol amines and/or polyethylene glycol monoalkyl ethers, or a mixture of styrene-maleic anhydride copolymers and methoxy polyethylene glycol amines and/or polyethylene glycol monoalkyl ethers, or a mixture of styrene-olefins/cyclic olefins-maleic anhydride terpolymers and methoxy polyethylene glycol amines and/or polyethylene glycol monoalkyl ethers. These reactions lead to formation of a kind of carboxylic salt containing polymer, which can be used alone in concrete. Only a small amount of this substance is needed to provide excellent water reduction, high concrete flowability and high early strength.
    Type: Grant
    Filed: September 4, 2003
    Date of Patent: December 25, 2007
    Assignee: Taiwan Gwan Chian Industrial Co., Ltd.
    Inventor: Theresa Tsai
  • Patent number: 7132491
    Abstract: Organometallic reversible addition-fragmentation chain transfer reagents (RAFT reagents), processes of free radical polymerization employing the same and polymers with low polydispersity index obtained thereby. The process includes polymerizing at least one monomer with at least one initiator and at least one organometallic RAFT reagent to obtain polymers having terminal organometallic functional groups with low polydispersity index. In addition, the terminal organometallic functional group may be removed by subjecting the obtained polymer to elimination to provide the corresponding organic polymers.
    Type: Grant
    Filed: May 10, 2004
    Date of Patent: November 7, 2006
    Assignee: Industrial Technology Research Institute
    Inventors: Yih-Hsing Lo, Kuo-Chen Shih, Yi-Chun Chen, Mei-Hua Wang, Fong Yee Hsu, Ming-Siao Hsiao
  • Patent number: 7087654
    Abstract: The invention provides ion exchange and electrochemical methods and devices employing anion exchange polymers produced by substantially simultaneous quaternization and polymerization reactions. Anion selective polymers are produced in accordance with the invention by combining, an ethylenic tertiary amine monomer, an alkylating agent having a boiling point temperature of at least about 100° C., and a cross-linking agent in the presence of a polymerizing agent for a time and at a temperature sufficient to form the polymer. The alkylating agent and the cross-linking agent may be the same compound, a cross-linking alkylating agent. The polymers may be produced in the presence of solvents and/or in the presence of diluting monomers which are incorporated into the polymers.
    Type: Grant
    Filed: June 24, 2002
    Date of Patent: August 8, 2006
    Assignee: Ionics, Incorporated
    Inventors: Russell J. MacDonald, James A. Lech
  • Patent number: 7037992
    Abstract: The invention is directed to olefin copolymers composed of nonhydrolyzable monomer units and hydrolyzable monomer units, the latter resulting from copolymerization of monomers containing a linkage that is hydrolytically cleavable in the presence of aqueous base or aqueous acid. Generally, the hydrolyzable monomer units represent a significant fraction of the copolymer, such that upon hydrolysis, a substantial portion of the copolymer is degraded into low molecular weight fragments. Also provided are degradable articles that are at least partially composed of a degradable copolymer in which hydrolyzable monomer units represent at least 20 mole % of the copolymer.
    Type: Grant
    Filed: March 18, 2003
    Date of Patent: May 2, 2006
    Assignee: SRI International
    Inventors: Robert B. Wilson, Jr., Sigridur Jonasdottir
  • Publication number: 20030208019
    Abstract: A composition for plastic lenses having a viscosity suitable for application to plastic lens materials and other optical materials and capable of giving a cured material having a relatively high refractive index and a low specific gravity, a plastic lens obtained by curing the composition, and a process for producing the plastic lens. A specific dicarboxylic acid component and a specific diol component are employed and the ratio of the components is adjusted to provide the composition for plastic lenses.
    Type: Application
    Filed: March 14, 2002
    Publication date: November 6, 2003
    Inventors: Kazuhiko Ooga, Tsuneo Tajima, Kai Kazufumi, Hiroshi Uchida
  • Publication number: 20030187170
    Abstract: A process for producing nanostructured and microstructured polymer films in which a polymer is guided into a gap formed by a roll and a means which develops an opposing pressure and the polymer is pressed through the gap so that, after the gap, the polymer lies in the form of a film on the roll, wherein wrapped around the roll is a form tool which is provided with a relief which represents the negative of the surface structure to be produced on the polymer film, so that the near-roll surface of the polymer film is shaped in accordance with the relief.
    Type: Application
    Filed: November 19, 2002
    Publication date: October 2, 2003
    Inventor: Axel Burmeister
  • Patent number: 6538089
    Abstract: A physically cross-linked copolymer comprising hydrophobic monomers, hydrogen bonding monomers, and thermosensitive monomers, said thermosensitive monomers having a distinct phase change at its lower critical solution temperature (LCST) when existing as a homopolymer. The physically cross-linked copolymer is used for drug delivery system or for enzyme delivery system. The physically cross-linked copolymer is also used for casting shapes of cavities, for production of miniaturized, detailed micro-parts or micro-machine parts, or for production of thermal switches.
    Type: Grant
    Filed: November 20, 2001
    Date of Patent: March 25, 2003
    Assignee: Forskarpatent I SYD AB
    Inventors: Babinder Samra, Igor Galaev, Bo Mattiasson
  • Patent number: 6489425
    Abstract: A styrene random copolymer includes at least one unit of styrene derivative and at least one unit of macromonomer. The at least one unit of styrene derivative is polymerized from a styrene derivative monomer of formula (1). The at least one unit of macromonomer is polymerized from a macromonomer of formula (2). In formulae (1) and (2), R1 is selected from the group consisting of hydrogen, halogen, and alkyl groups with 1˜20 carbon atoms, R2 is at least one selected from the group consisting of saturated hydrocarbons with 1˜20 carbon atoms, aromatic groups, and cycloalkyl groups with the proviso that R2 is not —CO— or —CH2—C6H4—, R3 is a saturated hydrocarbon group with 1˜10 carbon atoms, X is at least one ion polymerizable monomer unit. The amount of the macromonomer is 0.
    Type: Grant
    Filed: August 16, 2000
    Date of Patent: December 3, 2002
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Keun-Byoung Yoon, Jin Heong Yim, Yi-Yeol Lyu
  • Patent number: 6482907
    Abstract: Olefins containing selected functional groups such as silyl, ether and alkenyl, and often containing a blocking group, may be copolymerized with unsubstituted olefins such as ethylene and propylene in the presence of certain coordination compounds of nickel or palladium. The resulting polymers are useful as molding resins, elastomers, in adhesives and for films.
    Type: Grant
    Filed: February 1, 2000
    Date of Patent: November 19, 2002
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Lin Wang, Samuel David Arthur, Elizabeth Forrester McCord, Yueli Wang, Peter Arnold Morken, Lynda Kaye Johnson
  • Patent number: 6455655
    Abstract: This invention discloses an emulsion styrene-butadiene rubber (SBR) that can be employed in manufacturing tire tread formulations that have rolling resistance and treadwear characteristics that are similar to those made with solution SBR but with improved traction characteristics. Thus, the emulsion SBR of this invention is superior in many respects for use in tire tread compounds to conventional solution SBR and conventional emulsion SBR. This invention more specifically discloses a styrene-butadiene rubber composition which is comprised of repeat units which are derived from styrene, 1,3-butadiene, and a hydroxy alkyl acrylate monomer, wherein the styrene-butadiene rubber composition has a number average molecular weight as determined by field flow fractionation which is within the range of about 50,000 to 150,000, and wherein the styrene-butadiene rubber has a light scattering to refractive index ratio which is within the range of 1.8 to 3.9.
    Type: Grant
    Filed: July 25, 2001
    Date of Patent: September 24, 2002
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Howard Allen Colvin, Michael Leslie Senyek, Jr.
  • Patent number: 6410672
    Abstract: The invention provides ion exchange and electrochemical methods and devices employing anion exchange polymers produced by substantially simultaneous quaternization and polymerization reactions. Anion selective polymers are produced in accordance with the invention by combining, an ethylenic tertiary amine monomer, an alkylating agent having a boiling point temperature of at least about 100° C., and a cross-linking agent in the presence of a polymerizing agent for a time and at a temperature sufficient to form the polymer. The alkylating agent and the cross-linking agent may be the same compound, a cross-linking alkylating agent. The polymers may be produced in the presence of solvents and/or in the presence of diluting monomers which are incorporated into the polymers.
    Type: Grant
    Filed: July 28, 1999
    Date of Patent: June 25, 2002
    Assignee: Ionics, Incorporated
    Inventors: Russell J. MacDonald, James A. Lech
  • Patent number: 6262225
    Abstract: The invention is related to an olefin-carbon monoxide-vinyl monomer terpolymer composition which is derived from an olefin feed and a synthesis gas feed and at least one vinyl monomer feed. The invention is also related to a method for preparing olefin-carbon monoxide-vinyl monomer terpolymers by heating an olefin feed, a synthesis gas feed and at least one vinyl monomer feed in the presence of a free radical polymerization initiator. More particularly, the synthesis gas feed comprises predominantly carbon monoxide and hydrogen. The terpolymers of the invention are useful as polyvinyl chloride plasticizers.
    Type: Grant
    Filed: July 18, 2000
    Date of Patent: July 17, 2001
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Abhimanyu O. Patil, Manika Varma-Nair
  • Patent number: 6204347
    Abstract: A catalyst system for the ring-opening metathesis polymerization, which consists of at least two components (a) and (b), wherein (a) is a ruthenium compound of formula I or II RuX2(L1)m(L2)n(L3)o(L4)p  (I), ARuX2(L1)r(L2)s  (II), wherein L1, L2, L3 and L4 are each independently of the other C1-C18alkylcyanide, C8-C24-aralkylcyanide, tertiary amine, tertiary phosphine which does not contain any secondary alkyl or cycloalkyl radicals bound to the phosphorus atom, or phosphite, X is halogen, A is arene, m, n, o and p are integers from 0 to 4, where 2≦m+n+o+p≦4, r and s are integers from 0 to 2, where 1≦r+s≦2, and (b) is a tertiary phosphine containing at least one secondary alkyl radical or cycloalkyl radical bound to the phosphorus atom, is particularly suitable for the polymerization of strained cycloolefins by the RIM process.
    Type: Grant
    Filed: August 18, 1999
    Date of Patent: March 20, 2001
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Andreas Hafner, Paul Adriaan Van Der Schaaf, Andreas Mühlebach