Patents Assigned to Union Carbide Chemicals and Plastics Company Inc.
  • Patent number: 4913743
    Abstract: Combinations of glycosaminoglycan and certain cationic polymers provide modified glycosaminoglycan properties and can provide substantivity to keratinous material, compatibility, stability, humectancy, rheology and other properties useful in personal care or medical applications.
    Type: Grant
    Filed: May 25, 1988
    Date of Patent: April 3, 1990
    Assignees: Biomatrix, Inc., Union Carbide Chemicals and Plastics Company Inc.
    Inventors: George L. Brode, Philip A. Band, Errol D. Goddard, Arminda G. Barbone, Adolf Leshchiner, Joseph P. Pavlichko, Emmett Partain, III, Pak S. Leung
  • Patent number: 4913965
    Abstract: A composition useful in the manufacture of plenum cable comprising:(i) a copolymer comprised of ethylene and vinyl acetate wherein the portion of the copolymer attributed to the vinyl acetate is in the range of about 25 to about 60 parts by weight based on 100 parts by weight of the copolymer; and(ii) magnesium hydroxide having (a) a strain in the <101> direction of not more than 3.0.times.10.sup.-3 ; (b) a crystallite size in the <101> direction of more than 800 angstroms; and (c) a surface area, determined by the BET method, of less than 20 square meters per gram, the amount of magnesium hydroxide being in the range of about 180 to about 350 parts by weight based on 100 parts by weight of the copolymer.
    Type: Grant
    Filed: November 18, 1988
    Date of Patent: April 3, 1990
    Assignee: Union Carbide Chemicals and Plastics Company Inc.
    Inventor: Michael J. Keogh
  • Patent number: 4910295
    Abstract: A process for reducing the odor of ethylidene norbornene present in EPDM resin which comprises introducing a crystalline siliceous molecular sieve into said EPDM resin in an amount sufficient to reduce the odor produced by ethylidene norbornene present in said EPDM resin.
    Type: Grant
    Filed: April 28, 1989
    Date of Patent: March 20, 1990
    Assignee: Union Carbide Chemicals and Plastics Company Inc.
    Inventors: Robert J. Bernier, George E. Keller, II
  • Patent number: 4908343
    Abstract: This invention relates to catalysts for the manufacture of ethylene oxide, especially at commercial concentrations in the presence of carbon dioxide gas recycle, which contains impregnated silver on a support and a mixture of cesium salt and one or more alkali metal and alkaline earth metal salts in which the anions thereof are halide or oxyanions of elements other than the oxygen therein having an atomic number of 7 or 15 to 83 and being from groups 3b through 7b, inclusive, and 3a through 7a, inclusive, of the Periodic Table of the Elements, at least a portion of said oxyanions are oxyanions of group 3b to 7b elements.
    Type: Grant
    Filed: October 3, 1988
    Date of Patent: March 13, 1990
    Assignee: Union Carbide Chemicals and Plastics Company Inc.
    Inventor: Madan M. Bhasin
  • Patent number: 4908466
    Abstract: A process and reaction vessel for producing alkyl nitrite is disclosed the process comprising (a) contacting nitric oxide, lower alcohol and oxygen in a reaction zone such that alkyl nitrite is formed, said reaction zone comprising a reactor section and a rectification section, (b) supplying a liquid scrubbing agent to an upper portion of the rectification section, (c) withdrawing a gaseous alkyl nitrite product stream from the upper portion of the rectification section, and (d) withdrawing a liquid stream from a lower portion of the reactor section. The reactor section provides intimate vapor-liquid contact sufficient to enhance the conversion of nitric oxide to alkyl nitrite and the rectification section provides sufficient vapor residence time to enhance conversion of oxygen, as well as sufficient rectification capabilities to reduce the amounts of water and nitric acid in the gaseous alkyl nitrite product stream.
    Type: Grant
    Filed: September 29, 1987
    Date of Patent: March 13, 1990
    Assignee: Union Carbide Chemicals and Plastics Company Inc.
    Inventor: James R. Nelson
  • Patent number: 4906723
    Abstract: A method is described for producing dispersions of polyurea and the like in polyols of increased stability by polymerizing an amine and an isocyanate in the presence of an aminoalcohol, typically an aminopolyol, having the following formula: ##STR1## wherein A and A' are individually connective atoms which may be same or different, and are selected from the group consisting of carbon and oxygen or combinations thereof with hydrogen atoms or the like satisfying the valences; B is a member selected from the group consisting of nitrogen, NR, R being alkyl or aryl, or CR', R' being hydrogen, alkyl or aryl; D is a member selected from the group consisting of ##STR2## wherein a has a value of one to four; X is a member selected from the group consisting of OH, NH.sub.
    Type: Grant
    Filed: November 28, 1988
    Date of Patent: March 6, 1990
    Assignee: Union Carbide Chemicals and Plastics Company Inc.
    Inventors: Kenneth L. Hoy, Glenn A. Taylor, Chinsoo Lee
  • Patent number: 4906441
    Abstract: An improved fluidized bed reactor and a method for its use characterized by a variable thickness inert liner surrounding the fluidized bed reaction zone. Such liner generates heat that is transferred to the reaction zone. The heat is generated in the inert liner by passing an electrical current through the inert liner. The inert liner is thicker at the top than at the bottom and therefore more heat is generated at the bottom of the reaction zone than the top of the reaction zone due to the increased resistance of the thinner portions of the inert liner.
    Type: Grant
    Filed: November 25, 1987
    Date of Patent: March 6, 1990
    Assignee: Union Carbide Chemicals and Plastics Company Inc.
    Inventor: Robert N. Flagella
  • Patent number: 4907131
    Abstract: Lead frame assemblies for making fused capacitors, such as solid electrolyte capacitors, have cross ties that extend between the anode side and cathode side of the lead frame between every space intended to be occupied by a capacitor and have a fuse tie extending between the cross ties. The anode from the solid electrolytic capacitor body is attached to the fuse tie and a fuse conductor is positioned in an electrically conductive manner between the fuse tie and an anode lead. The assemblies may also be used to make non-polar dielectric capacitors.
    Type: Grant
    Filed: April 5, 1989
    Date of Patent: March 6, 1990
    Assignee: Union Carbide Chemicals and Plastics Company Inc.
    Inventor: Barry E. Neal
  • Patent number: 4904705
    Abstract: Polyurea foams are prepared by the reaction of N-(polyoxyalkyl)-N-(alkyl)amines with organic isocyanates in the presence of a suitable catalyst.
    Type: Grant
    Filed: March 31, 1988
    Date of Patent: February 27, 1990
    Assignee: Union Carbide Chemicals and Plastics Company Inc.
    Inventors: Richard M. Gerkin, Michael W. Jorgenson
  • Patent number: 4904452
    Abstract: An improved heated fluidized bed reactor and a method of heating such reactor wherein a means defining an annular heated fluidized bed reaction zone is heated by a first heat source supplying heat to the outer periphery of the fluidized bed reaction zone and a second heat source supplying heat to the inner boundary of the annular fluidized bed reaction zone. The present invention is useful for reactions carried out in a fluidized bed reactor, such as the pyrolysis of silane containing gas into silicon.
    Type: Grant
    Filed: March 31, 1988
    Date of Patent: February 27, 1990
    Assignee: Union Carbide Chemicals and Plastics Company Inc.
    Inventors: Arun Acharya, William E. Be Vier
  • Patent number: 4902768
    Abstract: N-(polyoxyalkyl)-N-(alkyl)amines are reacted with isocyanates and chain extenders to form polyureas and/or polyurethane-urea elastomers.
    Type: Grant
    Filed: March 31, 1988
    Date of Patent: February 20, 1990
    Assignee: Union Carbide Chemicals and Plastics Company Inc.
    Inventors: Richard M. Gerkin, Nigel Barksby
  • Patent number: 4902224
    Abstract: A crystalline orthodontic bracket with enhanced tolerance to fabrication, installation and use is composed of zirconia, yttria, magnesia or strontium titanate.
    Type: Grant
    Filed: December 19, 1988
    Date of Patent: February 20, 1990
    Assignee: Union Carbide Chemicals and Plastics Company Inc.
    Inventors: Paul R. Collins, Larry R. Rothrock
  • Patent number: 4902777
    Abstract: N-(polyoxyalkyl)-N-(alkyl)amines are provided that are reactive with isocyanates to form polyurea and/or polyurethane urea polymers.
    Type: Grant
    Filed: March 31, 1988
    Date of Patent: February 20, 1990
    Assignee: Union Carbide Chemicals and Plastics Company, Inc.
    Inventors: Richard M. Gerkin, David J. Schreck, Danny E. Smith
  • Patent number: 4902723
    Abstract: Hexahydro-s-triazines, and in particular hexamethylenetetramine (HMT), can be used in high water (5.0 or more parts per hundred parts of polyol) flexible polyurethane foams formulations in place of conventional gellation catalysts to produce open celled molded foams with excellent surfaces and with cores free of discoloration.
    Type: Grant
    Filed: November 7, 1988
    Date of Patent: February 20, 1990
    Assignee: Union Carbide Chemicals and Plastics Company Inc.
    Inventors: Otis M. Baker, Frank E. Critchfield, Paul M. Westfall
  • Patent number: 4902833
    Abstract: A process for the production of organic bisphosphine dioxides from organic bisphosphonates. The organic bisphosphonate is reacted with a Grignard reagent to give relatively high yields of the organic bisphosphine dioxide.
    Type: Grant
    Filed: February 19, 1988
    Date of Patent: February 20, 1990
    Assignee: Union Carbide Chemicals and Plastics Company Inc.
    Inventor: Kenneth G. Moloy
  • Patent number: 4899003
    Abstract: A process for the oxydehydrogenation of ethane to ethylene in a reaction system of open series connected stages, includes changing the total water and acetic acid content in the output gaseous stream after at least one stage other than the last stage of the series.
    Type: Grant
    Filed: July 11, 1985
    Date of Patent: February 6, 1990
    Assignee: Union Carbide Chemicals and Plastics Company Inc.
    Inventors: Robert M. Manyik, Jonathan L. Brockwell, John E. Kendall
  • Patent number: 4897473
    Abstract: This invention produces higher homologs, i.e., differing by at least a --CH.sub.2 -unit, of carbonyloxy-containing compounds by treating the carbonyloxy-containing compounds with carbon monoxide and hydrogen in the presence of a ruthenium-containing compound, a proton donor, an iodide promoter, and optionally, a manganese-containing compound.
    Type: Grant
    Filed: May 1, 1981
    Date of Patent: January 30, 1990
    Assignee: Union Carbide Chemicals and Plastics Company Inc.
    Inventor: Bernard D. Dombek
  • Patent number: 4897199
    Abstract: An environmentally safe method is provided for the removal and disposal of residual water soluble polymers, particularly polyethers, from aqueous waste streams, wherein a pretreated inert inorganic substrate is contacted with the waste stream and the polymer contained therein adsorbed onto the substrate. Thereafter, the polymers are removed from the substrate as CO.sub.2 and water by combustion and the substrate subjected to regenerative conditions for recycling.
    Type: Grant
    Filed: July 5, 1989
    Date of Patent: January 30, 1990
    Assignee: Union Carbide Chemicals and Plastics Company Inc.
    Inventors: Kavssery P. Ananthapadmanabhan, Errol D. Goddard
  • Patent number: 4895964
    Abstract: Process for the manufacture of quaternary ammonium pendant siloxane copolymers by the reaction of epoxy pendant siloxane copolymers with a tertiary amine acid salt using a catalytic amount of a free tertiary amine as the catalyst.
    Type: Grant
    Filed: July 1, 1988
    Date of Patent: January 23, 1990
    Assignee: Union Carbide Chemicals and Plastics Company Inc.
    Inventor: Anthony J. Margida
  • Patent number: 4895885
    Abstract: The present invention relates to olefin polymers stabilized with polysiloxanes containing sterically hindered heterocyclic moieties, said polysiloxanes represented by the general formula M*.sub.v D.sub.x D*.sub.y T.sub.z Q.sub.w M*.sub.v.
    Type: Grant
    Filed: September 6, 1988
    Date of Patent: January 23, 1990
    Assignee: Union Carbide Chemicals and Plastics Company Inc.
    Inventors: George N. Foster, Herbert E. Petty, Roswell E. King, III