Patents Represented by Attorney J. D. Brown
  • Patent number: 5296579
    Abstract: A process for the production of arylene sulfide polymers is provided which comprises subjecting a mixture of at least one first sulfur source, at least one second sulfur source comprised of at least one organic monothiol compound, at least one polyhalo-substituted aromatic compound and at least one polar organic compound to polymerization conditions sufficient to produce the arylene sulfide polymer. The organic monothiol compound can be added at any time prior to substantial completion of polymerization to provide arylene sulfide polymers of increased extrusion rate.
    Type: Grant
    Filed: February 11, 1988
    Date of Patent: March 22, 1994
    Assignee: Phillips Petroleum Company
    Inventors: Jon F. Geibel, Robert W. Campbell, Guy Senatore, Fernando C. Vidaurri, Mark A. Haney
  • Patent number: 5290479
    Abstract: In an inverse emulsion polymerization system for producing water-soluble polymers from a monomer system comprising an N-vinyl lactam and/or a vinyl-containing sulfonic acid or salt thereof utilizing a surfactant system having (1) a surfactant with a bulky lipophilic portion and a hydrophilic portion and (2) a generally straight-chain monionic surfactant having a lipophilic hydrocarbon group and an OH-terminated hydrophilic group, i.e. an alcohol. Such a system having both the right HLB and the right chemical combination results in a stable emulsion for the polymerization of these particular water-soluble monomers.
    Type: Grant
    Filed: January 17, 1990
    Date of Patent: March 1, 1994
    Assignee: Phillips Petroleum Company
    Inventor: Earl Clark
  • Patent number: 5147719
    Abstract: Block copolymers composed of poly(phenylene sulfide) segments and poly(arylene sulfide/sulfone) segments are prepared by first polymerizing a dihalobenzene, utilizing a suitable sulfur source in the presence of a polar organic compound, to form poly(phenylene sulfide) segments then adding and polymerizing a dehaloaromatic sulfone thereby forming said block copolymer which block copolymers are employed as coatings and also are used to enhance compatibility of polymer blends.
    Type: Grant
    Filed: June 19, 1991
    Date of Patent: September 15, 1992
    Assignee: Phillips Petroleum Company
    Inventors: Melvin D. Herd, Lyle R. Kallenbach
  • Patent number: 5110902
    Abstract: A process is provided for the production of aromatic sulfide-sulfone polymers which comprises contacting under suitable polymerization reaction conditions: (1) at least one dihaloaromatic sulfone, (2) water, and (3) a complex comprising at least one alkali metal hydrosulfide.
    Type: Grant
    Filed: March 22, 1991
    Date of Patent: May 5, 1992
    Assignee: Phillips Petroleum Company
    Inventors: Lacey E. Scoggins, Kenneth C. Hoover
  • Patent number: 5086163
    Abstract: A process is provided for the production of aromatic sulfide/sulfone polymers which comprises contacting under suitable polymerization reaction conditions: (1) at least one dihaloaromatic sulfone, (2) water, and (3) a complex comprising at least one alkali metal hydrosulfide.
    Type: Grant
    Filed: March 22, 1991
    Date of Patent: February 4, 1992
    Assignee: Phillips Petroleum Company
    Inventors: Lacey E. Scoggins, Kenneth C. Hoover, Wei-Teh W. Shangi
  • Patent number: 5071944
    Abstract: A polymerization process is provided for the production of high molecular weight aromatic sulfide/ketone polymer from at least one dihaloaromatic ketone, at least one alkali metal sulfide, at least one polar organic compound and water wherein the polymerization reaction is conducted in two distinct steps separated by an intermediate step of removal of at least a portion of the water.
    Type: Grant
    Filed: February 27, 1989
    Date of Patent: December 10, 1991
    Assignee: Phillips Petroleum Company
    Inventors: Michael D. Cliffton, Jon F. Geibel
  • Patent number: 5015725
    Abstract: A process is provided for the production of aromatic sulfide/sulfone polymers which comprises contacting under suitable polymerization reaction conditions: (1) at least one dihaloaromatic sulfone, (2) water, and (3) a complex comprising at least one alkali metal hydrosulfide.
    Type: Grant
    Filed: August 31, 1989
    Date of Patent: May 14, 1991
    Assignee: Phillips Petroleum Company
    Inventors: Lacey E. Scoggins, Kenneth C. Hoover, Wei-Teh Wade Shang
  • Patent number: 5015686
    Abstract: Improved coatings derived from arylene sulfide polymers are provided by use of powdered or liquid slurry coating formulations comprising a metal oxide and an arylene sulfide polymer which has an extrusion rate of about 80 to about 400 grams/10 minutes.
    Type: Grant
    Filed: March 16, 1989
    Date of Patent: May 14, 1991
    Assignee: Phillips Petroleum Company
    Inventors: Lyle R. Kallenbach, Michael C. Yu
  • Patent number: 4965236
    Abstract: Interchange reactions between organosulfides and mercaptans are promoted by the use of catalysts containing Group VIB oxides. The preferred catalysts are supported phospho Group VIB oxide acids, such as phosphotungstic acid and phosphomolybdic acid. The preferred supports are moderately acidic supports that contain aluminum, such as zinc aluminate and aluminum phosphate.
    Type: Grant
    Filed: April 10, 1989
    Date of Patent: October 23, 1990
    Assignee: Phillips Petroleum Company
    Inventor: John S. Roberts
  • Patent number: 4958004
    Abstract: A process is provided for the production of aromatic sulfide/sulfone polymers which involves contacting under suitable polymerization reaction conditions: (1) at least one dihaloaromatic sulfone, (2) at least one organic amide, (3) at least one alkali metal hydrosulfide, (4) water, and (5) at least one member selected from the group consisting of (a) alkali metal carbonates and (b) mixtures of alkali metal carbonates with alkali metal hydroxides wherein said mixtures have at least about 0.5 mole percent alkali metal carbonate.
    Type: Grant
    Filed: July 31, 1987
    Date of Patent: September 18, 1990
    Assignee: Phillips Petroleum Company
    Inventors: Kenneth C. Hoover, Lacey E. Scoggins, Wei-Tech W. Shang, Afif M. Nesheiwat
  • Patent number: 4906701
    Abstract: In an inverse emulsion polymerization system for producing water-soluble polymers from a monomer system comprising an N-vinyl lactam and/or a vinyl-containing sulfonic acid or salt thereof utilizing a surfactant system having (1) a surfactant with a bulky lipophilic portion and a hydrophilic portion and (2) a generally straight-chain nonionic surfactant having a lipophilic hydrocarbon group and an OH-terminated hydrophilic group, i.e. an alcohol. Such a system having both the right HLB and the right chemical cobination results in a stable emulsion for the polymerization of these particular water-soluble monomers.
    Type: Grant
    Filed: September 30, 1988
    Date of Patent: March 6, 1990
    Assignee: Phillips Petroleum Company
    Inventor: Earl Clark, Jr.
  • Patent number: 4904502
    Abstract: Improved coatings derived from arylene sulfide polymers are provided by use of powered or liquid slurry coating formulations comprising a metal oxide and an arylene sulfide polymer which has an extrusion rate of about 80 to about 400 grams/10 minutes.
    Type: Grant
    Filed: March 16, 1989
    Date of Patent: February 27, 1990
    Assignee: Phillips Petroleum Company
    Inventors: Lyle R. Kallenbach, Michael C. Yu
  • Patent number: 4882416
    Abstract: Arylene sulfide polymers which can be linear, branched or modified are prepared by a process which comprises the steps of: (a) admixing a sulfur source and a cyclic organic amide in the presence of water to form an aqueous admixture wherein the molar ratio of the sulfur source to the cyclic organic amide is at least about 0.6:1 to about 1:1; (b) dehydrating said aqueous admixture to form a dehydrated admixture; (c) admixing with said dehydrated admixture at least one polymerizable halo-substituted aromatic compound to form a polymerization mixture; (d) subjecting the polymerization mixture to polymerization conditions effective to produce the arylene sulfide polymer; and (3) recovering the arylene sulfide polymer.
    Type: Grant
    Filed: June 20, 1988
    Date of Patent: November 21, 1989
    Assignee: Phillips Petroleum Company
    Inventors: Guy Senatore, Wei-Teh W. Shang, Kenneth D. Goetz
  • Patent number: 4835051
    Abstract: Improved coatings derived from arylene sulfide polymers are provided by use of powdered or liquid slurry coating formulations comprising a metal oxide and an arylene sulfide polymer which has an extrusion rate of about 80 to about 400 grams/10 minutes.
    Type: Grant
    Filed: February 24, 1987
    Date of Patent: May 30, 1989
    Assignee: Phillips Petroleum Company
    Inventor: Michael C. Yu
  • Patent number: 4820800
    Abstract: A process for the production of arylene sulfide polymers is provided which comprises subjecting a mixture of at least one sulfur source, at least one organic monohalo compound, at least one polyhalo-substituted aromatic compound and at least one polar organic compound to polymerization conditions sufficient to produce the arylene sulfide polymer. The organic monohalo compound can be added at any time prior to substantial completion of polymerization to provide arylene sulfide polymers of increased extrusion rate.
    Type: Grant
    Filed: February 25, 1988
    Date of Patent: April 11, 1989
    Assignee: Phillips Petroleum Company
    Inventors: Jon F. Geibel, Guy Senatore
  • Patent number: 4808698
    Abstract: An improved process for the production of high molecular weight aromatic sulfide/sulfone polymer comprising contacting under suitable polymerization conditions: (a) an organic amide, (b) an alkali metal sulfide or hydrosulfide, (c) water, and (d) a dihaloaromatic sulfone wherein the molar ratio of (a) to (b) is about 2:1 to about 24:1, the improvement comprising employing a molar ratio of (a) to (c) of about 0.4:1 to about 1.3:1.
    Type: Grant
    Filed: September 30, 1987
    Date of Patent: February 28, 1989
    Assignee: Phillips Petroleum Company
    Inventors: Rex L. Bobsein, Earl Clark, Jr.
  • Patent number: 4795799
    Abstract: A process is provided for the production of aromatic sulfide/ketone polymers which comprises contacting under suitable polymerization conditions: (1) at least one dihaloaromatic ketone, (2) at least one organic amide, (3) at least one alkali metal hydrosulfide, (4) water, and (5) at least one member selected from the group consisting of (a) alkali metal carbonates and (b) mixtures of alkali metal carbonate with alkali metal hydroxide.
    Type: Grant
    Filed: September 8, 1987
    Date of Patent: January 3, 1989
    Assignee: Phillips Petroleum Company
    Inventor: James W. Cleary
  • Patent number: 4786711
    Abstract: Poly(p-phenylene sulfide) is prepared by the reaction of a p-dihalobenzene such as p-dichlorobenzene, with a dehydrated admixture of an alkali metal hydroxide such as sodium hydroxide, and an alkali metal bisulfide such as sodium bisulfide, in a polar organic solvent such as N-methyl-2-pyrollidone (NMP), employing a molar ratio of alkali metal hydroxide to alkali metal bisulfide of about 0.80:1 to 0.98:1. Poly(p-phenylene sulfide) having a high extrusion rate such as about 100 to about 1000 grams/10 minutes can be prepared in this manner.
    Type: Grant
    Filed: January 23, 1987
    Date of Patent: November 22, 1988
    Assignee: Phillips Petroleum Company
    Inventors: Guy Senatore, Afif M. Nesheiwat
  • Patent number: 4767841
    Abstract: Arylene sulfide polymer having a high extrusion rate, e.g. at least about 100 g/10 min. are prepared by a process comprising: (a) dehydrating an aqueous admixture of a suitable sulfur source and a cyclic organic amide; (b) admixing a dihalo-substituted aromatic compound with the dehydrate mixture to form a polymerization mixture wherein the molar ratio of sulfur source to the cyclic organic amide is about 0.39:1 to about 0.6:1; (c) subjecting the polymerization mixture to reaction conditions sufficient to produce the arylene sulfide polymer; and (d) recovering the arylene sulfide polymer.
    Type: Grant
    Filed: February 24, 1987
    Date of Patent: August 30, 1988
    Assignee: Phillips Petroleum Company
    Inventors: Kenneth D. Goetz, Afif M. Nesheiwat, Guy Senatore, Wei-Teh W. Shang
  • Patent number: 4753981
    Abstract: A water-in-oil emulsion polymerization process is provided for preparing water-in-oil latexes of water-soluble polymers of ethylenically unsaturated monomers. The process utilizes as a chain transfer agent a thiol having the formula HS-Y(Z).sub.x wherein Y is a hydrocarbyl radical having 2-5 carbons and a valence of x+1; Z is selected from the group consisting of --OH, --CO.sub.2 H and --CO.sub.2 R wherein R is an alkyl radical of 1-3 carbon atoms; x is an integer of 1 or 2 and wherein the total number of carbon atoms per molecule of the thiol is 2-7.
    Type: Grant
    Filed: April 1, 1987
    Date of Patent: June 28, 1988
    Assignee: Phillips Petroleum Company
    Inventor: Earl Clark, Jr.