Patents Represented by Attorney, Agent or Law Firm Bruce J Hendricks
  • Use of maleated styrene-ethylene-butylene-styrene triblock polymer for improved adhesion
    Patent number: 5684082
    Abstract: There is disclosed a method for adhering rubber to reinforcing materials which comprises embedding a textile fiber or metal reinforcing material in a vulcanizable rubber composition comprising rubber, a vulcanizing agent, reinforcement, a methylene donor, a methylene acceptor and a maleic anhydride functionalized triblock copolymer having polystyrene endblocks and poly-(ethylene/butylene) midblocks.
    Type: Grant
    Filed: February 27, 1997
    Date of Patent: November 4, 1997
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Thomas Joseph Segatta
  • Process for the preparation of organosilicon polysulfide compounds
    Patent number: 5684172
    Abstract: The present invention relates to a process for the preparation of organosilicon polysulfide compounds. The process involves reacting a mercaptoalkoxysilane with a benzothiazolyl-morpholinyl disulfide compound.
    Type: Grant
    Filed: February 11, 1997
    Date of Patent: November 4, 1997
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Lawson Gibson Wideman, Theodore Lamson Folk, Martin Paul Cohen
  • Silica reinforced rubber composition
    Patent number: 5679729
    Abstract: The present invention relates to a silica reinforced rubber composition and pneumatic tires having treads comprised of the silica reinforced rubber compositions. The silica reinforced rubber composition comprises an elastomer, silica, optionally carbon black and a silica coupler of the formula: ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 individually represent hydrogen or an alkyl of 1 to 6 carbon atoms; X represents oxygen or sulfur; and Z represents a hydroxyalkyl group of 2 to 7 carbon atoms.
    Type: Grant
    Filed: July 22, 1996
    Date of Patent: October 21, 1997
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Lawson Gibson Wideman, Paul Harry Sandstrom, Denise Jeannette Keith
  • Process for the preparation of organosilicon disulfide compounds
    Patent number: 5675014
    Abstract: The present invention relates to a process for the preparation of organo silicon disulfide compounds. The process involves reacting a mercaptoalkoxysilane with a dithiobis(benzothiazole) compound.
    Type: Grant
    Filed: January 22, 1996
    Date of Patent: October 7, 1997
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Martin Paul Cohen, Dane Kenton Parker, Lawson Gibson Wideman
  • Thiopropionate synergists
    Patent number: 5672730
    Abstract: The present invention relates to a compound of the formula ##STR1## wherein n is an integer from 1 to 4, R is selected from the group consisting of hydrogen and methyl; wherein when n is 1, R.sup.1 is selected from the group consisting of alkyl radicals having 1 to 18 carbon atoms, aryl radicals having 6 to 12 carbon atoms, aralkyl radicals having 7 to 12 carbon atoms, cycloalkyl radicals having 5 to 12 carbon atoms and radicals of the formula: ##STR2## wherein x is an integer of from 1 to 7; wherein when n is 2, R.sup.1 is selected from the group consisting of alkylene radicals having 2 to 18 carbon atoms, cycloalkylene radicals having 5 to 12 carbon atoms, arylene radicals having 6 to 12 carbon atoms, ##STR3## polyalkyl glycol ether radicals having the following structure ##STR4## wherein x is an integer from 1 to 7.
    Type: Grant
    Filed: September 22, 1995
    Date of Patent: September 30, 1997
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Kirkwood Storer Cottman
  • Process for the preparation of organosilicon disulfide compounds
    Patent number: 5663358
    Abstract: The present invention relates to a process for the preparation of organo silicon disulfide compounds. The process involves reacting a mercaptoalkoxysilane with a sulfenamide compound.
    Type: Grant
    Filed: January 22, 1996
    Date of Patent: September 2, 1997
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Martin Paul Cohen, Lawson Gibson Wideman
  • Preparation of sulfur-containing organosilicon compounds
    Patent number: 5663396
    Abstract: The present invention relates to a process for the production of organosilicon compounds of the formulaZ--Alk--S.sub.n --Alk--Z (I)in which Z is selected from the group consisting of ##STR1## where R.sup.1 is an alkyl group of 1 to 4 carbon atoms, cyclohexyl or phenyl;R.sup.2 is alkoxy of 1 to 8 carbon atoms, or cycloalkoxy of 5 to 8 carbon atoms;Alk is a divalent hydrocarbon of 1 to 18 carbon atoms and n is an integer of 2 to 8; comprising(A) reacting sodium hydroxide with sulfur in the presence of a saturated NaCl aqueous solution to form a reaction mixture;(B) reacting said reaction mixture with a compound of the formula:Z--Alk--X (II)where X is Cl or Br; in the presence of a phase transfer catalyst.
    Type: Grant
    Filed: October 31, 1996
    Date of Patent: September 2, 1997
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Richard Thomas Musleve, Dane Kenton Parker, Robert Charles Hirst
  • Use of maleated styrene-ethylene-butylene-styrene triblock polymer for improved adhesion
    Patent number: 5656687
    Abstract: There is disclosed a method for adhering rubber to reinforcing materials which comprises embedding a textile fiber or metal reinforcing material in a vulcanizable rubber composition comprising rubber, a vulcanizing agent, reinforcement, a methylene donor, a methylene acceptor and a maleic anhydride functionalized triblock copolymer having polystyrene endblocks and poly-(ethylene/butylene) midblocks.
    Type: Grant
    Filed: April 23, 1996
    Date of Patent: August 12, 1997
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Thomas Joseph Segatta
  • Silica-filled rubber compositions containing dialkyleneamide polysulfides
    Patent number: 5641820
    Abstract: The present invention relates to silica-filled rubber compositions containing dialkyleneamide polysulfides of the formula ##STR1## where R.sup.1 is independently selected from alkylene groups having 1 to 18 carbon atoms and x is an integer of from 2 to 7.
    Type: Grant
    Filed: December 26, 1995
    Date of Patent: June 24, 1997
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Lawson Gibson Wideman, Paul Harry Sandstrom
  • Hose construction containing fluoroplastic terpolymers
    Patent number: 5639528
    Abstract: The present invention relates to a hose construction containing a fluoroplastic barrier. The hose comprises (1) an inner core comprising (a) acrylonitrile-butadiene rubber and (b) from 0.05 to 25 phr of unsubstituted or substituted phenol salts of 1,8-diazabicyclo-[5,4,0]undecene-7; (2) a barrier layer comprised of a terpolymer derived from tetrafluoroethylene, hexafluoropropylene and vinylidene fluoride, wherein said barrier layer is directly adhered to said inner core; and (3) an elastomeric cover.
    Type: Grant
    Filed: April 24, 1995
    Date of Patent: June 17, 1997
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Allan Duane Feit, Gregory Alan Chapman
  • Sulfur vulcanizable rubber containing sodium thiosulfate pentahydrate
    Patent number: 5616655
    Abstract: A method is disclosed for processing a rubber composition comprising thermomechanically mixing at a rubber temperature in a range of 140.degree. C. to 190.degree. C. for a mixing time of 1 to 20 minutes(i) 100 parts by weight of at least one sulfur vulcanizable elastomer selected from conjugated diene homopolymers and copolymers, natural rubber and copolymers of at least one conjugated diene and aromatic vinyl compound;(ii) 10 to 250 phr of particulate precipitated silica;(iii) 0.01 to 1.0 parts by weight per weight of said silica of an organosilicon compound; and(iv) 0.05 to 10 phr of sodium thiosulfate pentahydrate.Addition of the sodium thiosulfate pentahydrate to sulfur vulcanizable rubber, silica and sulfur containing organosilicon compound decreases the mixing/processing time without sacrificing end product properties.
    Type: Grant
    Filed: September 11, 1995
    Date of Patent: April 1, 1997
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Richard M. D'Sidocky, David J. Zanzig, Shingo Futamura
  • Rubber vulcanization composition containing tetrabenzylthiuram disulfide, a bismaleimide, a sulfenamide compound and sulfur, a sulfur donor or mixtures thereof
    Patent number: 5616279
    Abstract: This invention relates to the discovery that tetrabenzylthiuram disulfide in combination with a bismaleimide compound and a sulfenamide compound provides for excellent vulcanization of rubbers and results in an improved final rubber vulcanizate possessing superior physical properties and reversion resistance.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: April 1, 1997
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Richard M. D'Sidocky, Neil A. Maly
  • Process for making a polyurea backed product with a polyurethane skin
    Patent number: 5595701
    Abstract: The present invention relates to a process for making a polyurea foamed backed product with a polyurethane skin. The process involves (a) providing a mold surface, (b) applying a polyurethane paint to the inner surface of the mold to provide a coated inner surface and (c) spraying at least one polyurea layer onto said coated inner surface to form an integral foamed backed polyurea product with a polyurethane skin.
    Type: Grant
    Filed: May 12, 1995
    Date of Patent: January 21, 1997
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Cline J. MacGregor, Joseph L. Malone, Monte H. York
  • Sulfur vulcanizable rubber containing sodium thiosulfate pentahydrate
    Patent number: 5594052
    Abstract: A method is disclosed for increasing the rate of vulcanization of a sulfur rubber composition comprising heating a sulfur vulcanizable rubber composition to a temperature ranging from 100.degree. C. to 200.degree. C., said rubber composition, containing a sulfur vulcanizable rubber, a sulfenamide compound and a hydrated thiosulfate. Addition of the hydrated thiosulfate to a sulfur vulcanizable rubber and a sulfenamide compound significantly increases the rate of vulcanization of the rubber.
    Type: Grant
    Filed: September 11, 1995
    Date of Patent: January 14, 1997
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Richard M. D'Sidocky, Shingo Futamura
  • Preparation of sulfur-containing organosilicon compounds
    Patent number: 5583245
    Abstract: The present invention relates to a process for the production of organosilicon compounds of the formulaZ-Alk-S.sub.n -Alk-Z (I)in which Z is selected from the group consisting of ##STR1## where R.sup.1 is an alkyl group of 1 to 4 carbon atoms, cyclohexyl or phenyl;R.sup.2 is alkoxy of 1 to 8 carbon atoms, or cycloalkoxy of 5 to 8 carbon atoms;Alk is a divalent hydrocarbon of 1 to 18 carbon atoms and n is an integer of 2 to 8; comprising reacting (A) a compound of the formula:Z-Alk-X (II)when X is Cl or Br; with (B) an ammonium hydrosulfide or alkali metal hydrosulfide and (C) sulfur;wherein the reaction is conducted in the presence of a phase transfer catalyst and an aqueous phase.
    Type: Grant
    Filed: March 6, 1996
    Date of Patent: December 10, 1996
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Dane K. Parker, Mark S. Sinsky
  • Bis-(2,5-polythio-1,3,4-thiadiazoles), rubbers containing such compounds, and a method of preparation of bis-(2,5-polythio-1,3,4-thiadiazoles)
    Patent number: 5567821
    Abstract: This invention relates to bis-(2,5-polythio-1,3,4-thiadiazoles), a method for their preparation and their use in rubber compounds. Use of these compounds provide for excellent vulcanization of rubbers and result in an improved final rubber vulcanizate possessing good physical properties.
    Type: Grant
    Filed: May 5, 1995
    Date of Patent: October 22, 1996
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Joseph A. Kuczkowski, Michael B. Rodgers, Kevin L. Rollick
  • Tire curing bladder with improved release from the tire innerliner
    Patent number: 5538218
    Abstract: Expandable bladders for use in curing presses for hydrocarbon rubbers such as pneumatic tires are a crosslink elastomer comprising isobutylene repeat units and include graphite. A preferred isobutylene elastomer is a brominated copolymer of isobutylene and p-methylstyrene. The bladders have enhanced lubricity, low adhesion to tire innerliners, and lower hot tension set. The above enhancements allow hydrocarbon rubbers such as tires to be molded with fewer defects caused by abraded or deformed bladders. They also enhance the useful life of the bladder reducing the cost of tire curing.
    Type: Grant
    Filed: September 28, 1994
    Date of Patent: July 23, 1996
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: George P. Patitsas, Paul H. Sandstrom, Bharat K. Kansupada
  • Use of maleated styrene-ethylene-butylene-styrene triblock polymer for improved adhesion
    Patent number: 5536774
    Abstract: There is disclosed a method for adhering rubber to reinforcing materials which comprises embedding a textile fiber or metal reinforcing material in a vulcanizable rubber composition comprising rubber, a vulcanizing agent, reinforcement, a methylene donor, a methylene acceptor and a maleic anhydride functionalized triblock copolymer having polystyrene endblocks and poly-(ethylene/butylene) midblocks.
    Type: Grant
    Filed: December 2, 1994
    Date of Patent: July 16, 1996
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Thomas J. Segatta
  • Silica reinforced rubber composition containing salts of salicylic acid
    Patent number: 5534578
    Abstract: The present invention relates to a silica reinforced rubber composition and pneumatic tires having treads comprised of the silica reinforced rubber compositions. The silica reinforced rubber composition comprises an elastomer, silica, optionally carbon black and a silica coupler comprised of the zinc salt, the ammonium salt or the sodium salt of salicylic acid.
    Type: Grant
    Filed: September 6, 1994
    Date of Patent: July 9, 1996
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Lawson G. Wideman, Paul H. Sandstrom
  • Method for removing small amounts of high boiling point organic compound from aqueous polymerization products
    Patent number: 5516818
    Abstract: A process for achieving a significant reduction in the volatile organic compound content (VOC) of an aqueous polymerization system includes the steps of contacting the aqueous polymerization system with an organic solvent and allowing said organic solvent to be absorbed into polymer particles of said aqueous polymerization system, contacting said aqueous polymerization system and organic solvent with a gas or vapor at temperature and pressure conditions which cause mass transfer of the volatile organic compounds from said latex into said gas or vapor phase, and separating said gas or vapor from said aqueous polymerization system. The solvent is generally absorbed into the polymer particles of the latex and serves as a stripping aid, especially with respect to higher molecular weight compounds which tend to remain trapped in the polymer particles during conventional stripping processes.
    Type: Grant
    Filed: September 26, 1994
    Date of Patent: May 14, 1996
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Sun-Lin Chen, Tang H. Wong, Ramesh N. Gujarathi