With Nonhydrocarbon Additive Patents (Class 585/2)
  • Patent number: 4692544
    Abstract: Certain substituted diaryl amines are used to inhibit the polymerization of ethylenically unsaturated monomers; for example, unsaturated carboxylic acids and derivatives thereof.
    Type: Grant
    Filed: August 23, 1985
    Date of Patent: September 8, 1987
    Assignee: Sandoz Ltd.
    Inventors: Richard N. Goerner, J. Michael Hipp, Ruth H. Hipp
  • Patent number: 4663491
    Abstract: The invention relates to copolymers of esters of acrylic acid or methacrylic acid with unbranched alcohols that contain at least 16 C atoms, and maleic anhydride, and also the use of these copolymers as crystallization inhibitors in paraffin-bearing crude oils.
    Type: Grant
    Filed: June 4, 1985
    Date of Patent: May 5, 1987
    Assignee: Chemische Fabrik Stockhausen GmbH
    Inventors: Eduard Barthell, Anthony Capelle, Miroslav Chmelir, Kurt Dahmen
  • Patent number: 4529500
    Abstract: Hydrocarbon processing equipment is protected against fouling during the processing of hydrocarbons at elevated temperatures by adding to the equipment small amounts of the N,N'-dimer of phenothiazine or a substituted phenothiazine.
    Type: Grant
    Filed: August 10, 1984
    Date of Patent: July 16, 1985
    Assignee: Atlantic Richfield
    Inventors: Richard F. Miller, Michael P. Nicholson
  • Patent number: 4504406
    Abstract: A cleansing agent for lithographic printing plates having substantially reduced aromatic components. The plate cleaner comprises an aqueous mixture of substantially aliphatic hydrocarbons, a composition comprising one or more non-ionic emulsifying agents and/or non-ionic surfactants, an alkaline salt electrolyte and an optional organic or inorganic acid.
    Type: Grant
    Filed: February 22, 1983
    Date of Patent: March 12, 1985
    Assignee: American Hoechst Corporation
    Inventor: Major S. Dhillon
  • Patent number: 4465881
    Abstract: Vinyl aromatic compounds are stabilized against undesired polymerization by adding to the vinyl aromatic compounds small amounts of the N,N'-dimer of phenothiazine or a substituted phenothiazine.
    Type: Grant
    Filed: September 8, 1983
    Date of Patent: August 14, 1984
    Assignee: Atlantic Richfield Company
    Inventors: Richard F. Miller, Michael P. Nicholson
  • Patent number: 4465882
    Abstract: Vinyl aromatic compounds are stabilized against undesired polymerization by adding to the vinyl aromatic compounds small amounts of at least one N,N-diarylhydroxylamine and at least one N,N' dimer of phenothiazine or substituted phenothiazine.
    Type: Grant
    Filed: September 8, 1983
    Date of Patent: August 14, 1984
    Assignee: Atlantic Richfield Company
    Inventors: Richard F. Miller, Michael P. Nicholson
  • Patent number: 4417084
    Abstract: In the catalytic dehydrogenation of p-ethyltoluene to p-methylstyrene, popcorn polymer forms and builds up in the condenser, shortly plugging it. This is prevented by adding minor amounts of H.sub.2 S continuously to the gaseous product effluent entering the condenser.
    Type: Grant
    Filed: March 3, 1980
    Date of Patent: November 22, 1983
    Assignee: Mobil Oil Corporation
    Inventor: Chin-Chiun Chu
  • Patent number: 4404413
    Abstract: The growth of butadiene "popcorn" polymer seeds in butadiene separation processes is inhibited by treatment of the butadiene with carbon disulfide or elemental phosphorus.
    Type: Grant
    Filed: June 30, 1982
    Date of Patent: September 13, 1983
    Assignee: Shell Oil Company
    Inventor: Weston W. Haskell
  • Patent number: 4371726
    Abstract: The disclosure relates to a composition suitable for use in mechanical power transmission devices. It has as its principal component a hydrocarbon oil which has from 19 to 30 carbon atoms, inclusive, and three six-membered carbocyclic rings and consists of a mixture of compounds having the following formula: ##STR1## wherein R.sup.1 is a divalent straight or branched chain radical C.sub.y H.sub.2y where y is an integer of 1 through 3; R.sup.2 is a straight chain radical C.sub.z H.sub.2z where z is an integer of 1 through 3; R.sup.3, R.sup.4, and R.sup.
    Type: Grant
    Filed: July 16, 1981
    Date of Patent: February 1, 1983
    Assignees: Nippon Steel Chemical Co., Ltd., Mitsubishi Oil Co., Ltd.
    Inventors: Yoshiharu Horita, Kenichi Fujimoto, Michio Hoshino, Tetsuo Takito, Masayoshi Muraki
  • Patent number: 4300408
    Abstract: A control cable comprising an inner cable, a conduit and a lubricating layer interposed between, formed from a composition of high density polyethylene powders or pellets and a fluoro-alkylated silicone oil, thereby improving the slippage and the wear resistance of an inner cable, and being superior to endurance over a long period of time.
    Type: Grant
    Filed: February 22, 1980
    Date of Patent: November 17, 1981
    Assignee: Nippon Cable System Inc.
    Inventor: Junnosuke Yoshifuji
  • Patent number: 4264461
    Abstract: Hydrocracked lubricating oils are effectively stabilized against deterioration caused by light by the inclusion of at least one of certain substantially aliphatic amine components. Such substantially aliphatic amine components provide outstanding inhibition relative to aromatic amine components.
    Type: Grant
    Filed: September 26, 1979
    Date of Patent: April 28, 1981
    Assignee: Atlantic Richfield Company
    Inventors: Tai S. Chao, Aubrey C. Smith, Jr.
  • Patent number: 4161495
    Abstract: A method for stabilizing acetylene against explosive decomposition comprising mixing together with the acetylene a chemical free radical scavenging agent chosen from the group consisting of nitric oxide, hydrogen chloride, hydrogen bromine, hydrogen iodide and vinyl bromine as well as mixtures thereof.
    Type: Grant
    Filed: September 25, 1978
    Date of Patent: July 17, 1979
    Assignee: Union Carbide Corporation
    Inventor: Clifford M. Detz