Patents Examined by Fred Zitomer
  • Patent number: 6153553
    Abstract: Novel catalysts are provided for the polymerization of olefins such as ethylene. These catalysts comprise a novel amorphous aluminophosphate comprising, on a microlevel, sheets of aluminophosphate as well as spheres of aluminophosphate plus a chromium compound. These new catalysts are surprisingly active; result in more co-monomer incorporation than prior art catalysts and reduce the amount of low molecular weight material in the product.
    Type: Grant
    Filed: January 11, 2000
    Date of Patent: November 28, 2000
    Assignee: Chevron Chemical Company
    Inventors: Pamela R. Auburn, Theresa A. Pecoraro
  • Patent number: 6153688
    Abstract: The present invention provides an aqueous polytetrafluoroethylene dispersion composition characterized in that the composition comprises 30 to 65 wt. % of polytetrafluoroethylene and a polyoxyethylene alkyl ether in an amount of 2 to 10 wt. % based on the polytetrafluoroethylene, the polyoxyethylene alkyl ether being represented by the formulaRO(CH.sub.2 CH.sub.2 O)nHwherein R is a saturated or unsaturated hydrocarbon group having 8 to 18 carbon atoms, and n is 5 to 18, having a cloud point of over 45.degree. C. to not higher than 85.degree. C. and containing 65 to 70 wt. % of ethylene oxide in the molecule.
    Type: Grant
    Filed: September 29, 1997
    Date of Patent: November 28, 2000
    Assignee: Daikin Industries, Ltd.
    Inventors: Toshiro Miura, Tadao Hayashi
  • Patent number: 6150470
    Abstract: The present invention is directed to new metal cation neutralized high acid ionomer resins and to golf ball cover compositions containing these new resins. When the new high acid ionomer resins are utilized to manufacture a golf ball, the golf ball produced thereby exhibits properties of improved distance without sacrificing characteristics such as playability and/or durability when compared to low acid ionomer and/or low acid/high acid ionomer blends.
    Type: Grant
    Filed: March 28, 1995
    Date of Patent: November 21, 2000
    Assignee: Spalding Sports Worldwide, Inc.
    Inventor: Michael J. Sullivan
  • Patent number: 6150485
    Abstract: Fluorine-containing elastomers produced through copolymerization reaction of vinylidene fluoride, tetrafluoroethylene, perfluoro(lower alkyl vinyl ether) and chlorotrifluoroethylene in the presence of a bromine-containing monomer compound and an iodine- and bromine-containing compound, where hexafluoropropene can be further copolymerized, have not only a distinguished resistance to amine-based additives and also distinguished low-temperature characteristic and engine oil resistance, and also a lower cost attained by reduced copolymer proportion of perfluoro(lower alkyl vinyl ether).
    Type: Grant
    Filed: February 11, 1999
    Date of Patent: November 21, 2000
    Assignee: Nippon Mektron, Limited
    Inventors: Satoru Saito, Haruyoshi Tatsu
  • Patent number: 6143197
    Abstract: A composition capable of scavenging oxygen composed of (i) a copolymer having long chain branches comprising units derived from monomers of ethylene and at least one vinyl unsaturated alicyclic monomer; (ii) a transition metal catalyst; (iii) preferably, with a photoinitiator; and (iv) optionally, a polymeric diluent.
    Type: Grant
    Filed: July 23, 1999
    Date of Patent: November 7, 2000
    Assignee: Cryovac, Inc.
    Inventors: William John Gauthier, Drew Ve Speer
  • Patent number: 6143847
    Abstract: The present invention concerns a novel method for preparing polymers (preferably (meth)acrylate polymers and copolymers) having a narrow molecular weight distribution by metal-free anionic polymerization in the presence of a phosphonium cation containing at least one annellated aromatic ring as substituent on the phosphorous atom.
    Type: Grant
    Filed: April 7, 1997
    Date of Patent: November 7, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Thieo E. Hogen-Esch, Dimo K. Dimov, Stephan Jungling, Volker Warzelhan, Hermann Gausepohl
  • Patent number: 6140437
    Abstract: A fluorine-containing elastomeric copolymer comprising 55 to 62 mole % of repeating units derived from tetrafluoroethylene and 38 to 45 mole % of repeating units derived from perfluoro(methyl vinyl ether) which is obtained by radically polymerizing the monomers in the presence of a diiodide compound of the formula: RI.sub.2 in which R is a saturated fluorohydrocarbon or chlorofluorohydrocarbon group having 1 to 16 carbon atoms, or a hydrocarbon group having 1 to 3 carbon atoms and which has a Mooney viscosity (ML.sub.1+10 100.degree. C.) in the range between 20 and 150. This copolymer has an excellent compression set at high temperature, which is an important property for sealing members.
    Type: Grant
    Filed: June 24, 1998
    Date of Patent: October 31, 2000
    Assignee: Daikin Industries Ltd.
    Inventors: Masanori Kitaichi, Hideya Saito, Yasuji Iwasaki, Mitsuru Kishine
  • Patent number: 6136926
    Abstract: Cross-linkable, olefinic polymers synthesized from mixtures of olefinic polymers and ethylenically unsaturated organosilane compounds, which can be grafted, by a 2-step method using thermally decomposing free radical-forming agents by heating the mixtures to a temperature of 30.degree. to 110.degree. C. below the softening temperature or the crystallite melting point of the olefinic polymers used and subsequently heating the mixtures to a reaction temperature of 10.degree. to 60 .degree. C. below the softening temperature or the crystallite melting point of the olefinic polymers used. In the alternative, they can be grafted by a method involving the action of ionizing radiation with simultaneous absorption of organosilane compounds and the action of radiation. The method is suitable for producing films, sheets, fibers, panels, coatings, pipes, hollow objects, foamed materials and molded articles.
    Type: Grant
    Filed: July 22, 1997
    Date of Patent: October 24, 2000
    Assignee: Borealis GmbH
    Inventors: Manfred Raetzsch, Achim Hesse, Harmut Bucka, Dirk Leistner, Sergej Ivanchev, Saul Heikin, Alla Mesh, Moisej Pukschanski
  • Patent number: 6132705
    Abstract: A cosmetic or pharmaceutical composition which comprises at least one polymer or copolymer which is obtainable by free-radical emulsion or suspension polymerization in the presence of at least one chain-transfer reagent, has a glass transition temperature above -35.degree. C. and a content of organic volatile constituents .ltoreq.0.5% by weight, and is at least 20% by weight composed of a (meth)acrylic ester.
    Type: Grant
    Filed: June 26, 1997
    Date of Patent: October 17, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Volker Schehlmann, Christian Schade, Axel Sanner, Karin Sperling, Hans-Ulrich Wekel
  • Patent number: 6126865
    Abstract: Pressure sensitive adhesives and heat activatable adhesives that are the reaction product of an acrylic acid ester of a monohydric alcohol whose homopolymer has a T.sub.g less than 0.degree. C.; a non-polar ethylenically unsaturated monomer whose homopolymer has a solubility parameter of no greater than 10.50 and a T.sub.g greater than 15.degree. C.; 0-5 parts by weight of a polar ethylenically unsaturated monomer whose homopolymer has a solubility parameter of greater than 10.50 and a T.sub.g greater than 15.degree. C.; and an electrically conductive agent.
    Type: Grant
    Filed: March 11, 1997
    Date of Patent: October 3, 2000
    Assignee: 3M Innovative Properties Company
    Inventors: Christopher A. Haak, Michael A. Kropp, Greggory S. Bennett
  • Patent number: 6127513
    Abstract: Disclosed is a process for preparing spherical polyamide having an average grain diameter of 100 .mu.m or less which comprises polymerizing monomers for preparing the polyamide under heating at a temperature higher than the melting points of the monomers and the polyamide while melting the monomers in a polymerization medium under stirring whereby dispersing the formed polyamide with fine particles in the polymerization medium and then cooling the resulting mixture.
    Type: Grant
    Filed: March 13, 1998
    Date of Patent: October 3, 2000
    Assignee: Ube Industries, Ltd.
    Inventors: Shinji Ohara, Yoshiro Iwata, Masahiko Emoto
  • Patent number: 6124416
    Abstract: An aqueous emulsion comprising at least one (co)polymer is provided. The (co)polymer is derived from a monomer having formula (1):(R.sub.1 R.sub.2 C.dbd.CR.sub.3 --CO--L--).sub.q A(--NCOblock).sub.p(1)wherein R.sub.1, R.sub.2, and R.sub.3, which are the same or different, represent a hydrogen or a group selected from hydrocarbon chains comprising 1 to 12 carbon atoms, halogens, and electron-withdrawing functional groups; L, which is the same or different, represents a divalent hydrocarbon radical comprising 2 to 12 carbon atoms; A represents an organic backbone which has n free valencies, n is a number between 2 and 7, and is equal to p+q; NCOblock represents a protected isocyanate functional group; p is a number between 1 and 6; and q is a number between 1 and 6.
    Type: Grant
    Filed: February 18, 1999
    Date of Patent: September 26, 2000
    Assignee: Rhone-Poulenc Chimie
    Inventors: Michel Desbois, Roland Reeb, Joel Richard, Fran.cedilla.oise Truchet
  • Patent number: 6121399
    Abstract: The specification describes various polymers having monomer of formula (I): ##STR1## In formula (I), R1 and R2 are, independently, hydrogen, a C.sub.1 -C.sub.24 alkyl group, an aromatic or heteroaromatic group, a C.sub.3 -C.sub.8 cycloalkyl or C.sub.2 -C.sub.7 heterocycloalkyl group, or a --C(O)R3 group in which R3 is a C.sub.1 -C.sub.24 alkyl group, an aromatic or heteroaromatic group, a C.sub.3 -C.sub.8 cycloalkyl or C.sub.2 -C.sub.7 heterocyclic group; or a --CH.sub.2 --C(O)--R4 group in which R4 is a C.sub.1 -C.sub.6 alkyl group. At least one of R1 and R2 is a --C(O)R3 group. The polymer may be a homopolymer or a copolymer containing other ethylenically unsaturated monomers. The polymer may be used in a variety of coating compositions such as inks, adhesives, paints and films. Unique monomers where both R1 and R2 are acetoacetyl groups and novel monomers where R2 is an acetoacetyl group are also described.
    Type: Grant
    Filed: October 23, 1997
    Date of Patent: September 19, 2000
    Assignee: Eastman Chemical Company
    Inventors: Dean Charles Webster, Allen Lynn Crain, Chadwick Edward Marlow
  • Patent number: 6121400
    Abstract: The specification describes various polymers having monomer of formula (I): ##STR1## In formula (I), R1 and R2 are, independently, hydrogen, a C.sub.1 -C.sub.24 alkyl group, an aromatic or heteroaromatic group, a C.sub.3 -C.sub.8 cycloalkyl or C.sub.2 -C.sub.7 heterocycloalkyl group, or a --C(O)R3 group. Preferably R1 and R2 are both a a --C(O)R3 group where R3 which can the same of different is selected from the group consisting of a C.sub.1 -C.sub.24 alkyl group, an aromatic or heteroaromatic group, a C.sub.3 -C.sub.8 cycloalkyl or C.sub.2 -C.sub.7 heterocyclic group; or a --CH.sub.2 --C(O)--R4 group in which R4 is a C.sub.1 -C.sub.6 alkyl group. At lease one of R1 and R2 is a --C(O)R3 group. The polymer may be a homopolymer or a copolymer containing other ethylenically unsaturated monomers. The polymer may be used in a variety of coating compositions such as inks, adhesives, paints and films.
    Type: Grant
    Filed: February 27, 1998
    Date of Patent: September 19, 2000
    Assignee: Eastman Chemical Company
    Inventors: Dean Charles Webster, Allen Lynn Crain, Chadwick Edward Marlow
  • Patent number: 6117416
    Abstract: This invention relates to a mouthwash composition including a solvent-free, high molecular weight (>1,500,000) uncrosslinked terpolymer of maleic anhydride, a C.sub.1 -C.sub.4 alkyl vinyl ether and isobutylene.
    Type: Grant
    Filed: September 15, 1999
    Date of Patent: September 12, 2000
    Assignee: ISP Investments Inc.
    Inventors: William E. Prosise, James F. Curry, Krystyna Plochocka
  • Patent number: 6111029
    Abstract: The novel molding made from a combination of polyacetal with directly molded-on function elements is distinguished by the fact that the function elements comprise one or more elastomers. Such elastomers comprise partially or fully hydrogenated nitrile rubbers, one- or multi-component silicone rubbers or sulfur-containing rubbers.
    Type: Grant
    Filed: April 23, 1999
    Date of Patent: August 29, 2000
    Inventors: Frank Reil, Frank Reuter, Ulrich Haack, Gerhard Reuschel
  • Patent number: 6107429
    Abstract: The present invention is directed to a porous polymer microparticle, in the form of broken spheres, open to a porous oleophilic interior surface area, having a high oil and water absorbency and an apparent bulk density of about 0.008 to about 0.1 grams/cc.
    Type: Grant
    Filed: October 20, 1997
    Date of Patent: August 22, 2000
    Assignee: Amcol International Corporation
    Inventor: Milan F. Sojka
  • Patent number: 6107428
    Abstract: A monomer having a structure expressed as: ##STR1## wherein R.sub.1 is a hydrogen atom, --OH group, --COOR.sub.5 group, or group expressed as: ##STR2## R.sub.2 is a hydrogen atom, --CH.sub.3 group, or --CH.sub.2 COOR.sub.4 group, R.sub.3 is a hydrogen atom, --OH group, or --CH.sub.2 COOR.sub.4 group, R.sub.4 is a hydrogen atom, sodium atom, potassium atom, or --NH.sub.4 group, and R.sub.5 is a sodium atom, potassium atom, or --NH.sub.4 group; a polymer having a structure unit expresses as: ##STR3## wherein R.sub.1 through R.sub.5 are identical with the above; and a composition containing a polymer that excels the conventional chleating agents in chleating and dispersing effects besides rendering excellent biodegradability. Therefore, the composition is preferably used as a detergent composition, an inorganic pigment dispersing agent, a fiber treatment agent, a water treatment agent (anti-scale agent), and a bleaching assistant for wood pulp, etc.
    Type: Grant
    Filed: October 23, 1998
    Date of Patent: August 22, 2000
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Shigeru Yamaguchi, Keisi Tuboi
  • Patent number: 6107354
    Abstract: Disclosed are formed composite material compositions suitable for use in the removal of heavy metals from aqueous systems, a process for preparing said composite materials and a process for the removal of heavy metals using said composite materials. Formed particulate composite material compositions are comprised of (A) at least one ion exchange material; (B) at least one activated carbon; and, optionally, (C) at least one binder material. The method for preparing said composite material compositions comprises first mixing components (A), (B) and, optionally, (C), then forming particles from said mixture. The method for removing heavy metals from aqueous systems containing one or more heavy metals comprises contacting said aqueous system with one or more of the composite materials until the heavy metals are substantially removed from the aqueous system.
    Type: Grant
    Filed: February 10, 1998
    Date of Patent: August 22, 2000
    Assignee: Engelhard Corporation
    Inventors: Thomas J. Shaniuk, Robert V. Russo
  • Patent number: 6107427
    Abstract: The invention is concerned with novel cross-linkable, photoactive polymer materials with 3-aryl-acrylic acid esters and amides as well as their use as orienting layers for liquid crystals and for the production of non-structured or structured optical elements and multi-layer systems.
    Type: Grant
    Filed: September 4, 1996
    Date of Patent: August 22, 2000
    Assignee: Rolic AG
    Inventors: Rolf-Peter Herr, Fran.cedilla.ois Herzog, Andreas Schuster