Patents Represented by Attorney, Agent or Law Firm Bruce J Hendricks
  • Asymmetrical siloxy compounds
    Patent number: 5912374
    Abstract: The present invention relates to asymmetrical siloxy compounds of the formulae ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are independently selected from the group consisting of alkoxy radicals having from 1 to 8 carbon atoms; R.sup.4 is selected from the group consisting of alkylene groups having from 1 to 15 carbon atoms and arylene and alkyl substituted arylene groups having from 6 to 10 carbon atoms; R.sup.
    Type: Grant
    Filed: August 13, 1997
    Date of Patent: June 15, 1999
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Giorgio Agostini, Thierry Florent Edme Materne, Marc Junio, Friedrich Visel, Uwe Ernst Frank
  • Process for hydrogenation of carbon-carbon double bonds of a water-soluble olefinically unsaturated carboxylic acid salt
    Patent number: 5902889
    Abstract: A process for hydrogenating carbon-carbon double bonds of a water-soluble olefinically unsaturated carboxylic acid salt which comprises(a) combining an aqueous solution of an olefinically unsaturated carboxylic acid salt with(1) an oxidant selected from the group consisting of oxygen, air and hydroperoxides;(2) a reducing agent selected from hydrazine and hydrates thereof; and(3) a metal ion activator;(b) heating the mixture to a temperature from 0.degree. C. to the reflux temperature of the reaction mixture; and(c) neutralizing the pH of the reaction mixture.
    Type: Grant
    Filed: September 18, 1997
    Date of Patent: May 11, 1999
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Lawson Gibson Wideman, Denise Jeannette Keith
  • Pneumatic tire having a tread compound containing high levels of low Tg polymer and resin
    Patent number: 5901766
    Abstract: The present invention relates to a pneumatic tire having a tread containing (a) from 50 to 90 phr (parts by weight of rubber per 100 total parts of rubber) of a rubber which, in its uncured state, has a glass transition temperature in the range of from -80.degree. C. to -110.degree. C. and (b) from 15 to 50 phr of a resin.
    Type: Grant
    Filed: August 26, 1997
    Date of Patent: May 11, 1999
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Paul Harry Sandstrom, Edward John Blok, John Joseph Andre Verthe
  • Rubber composition containing hydrated zinc-sodium thiosulfate
    Patent number: 5900448
    Abstract: A method for processing an elastomer comprising mixing 100 parts by weight of an elastomer having olefinic unsaturation with from 0.05 to 10 phr of a hydrated zinc-sodium thiosulfate. The hydrated zinc-sodium thiosulfate may be used in place of in whole or in part for conventional adhesion promoting cobalt compounds.
    Type: Grant
    Filed: January 30, 1998
    Date of Patent: May 4, 1999
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Lawson Gibson Wideman, William Paul Francik, Richard Michael D'Sidocky
  • Method of processing rubber compositions containing 2-benzothiazyl-3-(propane-1,2-diol) disulfide
    Patent number: 5900467
    Abstract: The present invention relates to a method of processing rubber compositions containing 2-benzothiazyl-3-(propane-1,2-diol)disulfide.
    Type: Grant
    Filed: August 19, 1997
    Date of Patent: May 4, 1999
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Lawson Gibson Wideman, Paul Harry Sandstrom
  • Rubber compositions containing o-salicylsalicyclic acid
    Patent number: 5886074
    Abstract: The present invention relates to rubber compositions containing o-salicylsalicyclic acid of the formula: ##STR1##
    Type: Grant
    Filed: March 4, 1997
    Date of Patent: March 23, 1999
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Paul Harry Sandstrom, Lawson Gibson Wideman
  • Process for improving the properties of ground recycled rubber
    Patent number: 5883139
    Abstract: A process involving (a) homogeneously dispersing tetrathiodipropionic acid in a recycled rubber having an individual particle size no greater than 420 microns, (b) mixing the treated recycled rubber with unvulcanized rubber and (c) vulcanizing the rubber mixture.
    Type: Grant
    Filed: February 20, 1998
    Date of Patent: March 16, 1999
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Lawson Gibson Wideman, George Frank Balogh, Raymond Dean McQuate
  • Rubber stocks containing a metal salt of hydroxy aryl substituted maleamic acid
    Patent number: 5872167
    Abstract: The present invention relates to rubber stocks containing a metal salt of hydroxy-aryl substituted maleamic acid. The rubber stocks compounded with the cobalt salts of hydroxy-aryl substituted maleamic acid exhibit improved aged rubber/wire adhesion. The rubber stocks compounded with sodium salts of hydroxy-aryl substituted maleamic acid exhibit improved peel adhesion.
    Type: Grant
    Filed: October 16, 1991
    Date of Patent: February 16, 1999
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Lawson Gibson Wideman, George Frank Balogh, Denise Jeannette Keith
  • Rubber article having a surface design for high abrasion resistance
    Patent number: 5866265
    Abstract: The present invention relates to a rubber article having a surface construction designed for abrasion resistance wherein the surface comprises a series of rubber layers parallel to each other and in a density of from at least 200 layers per 25.4 millimeters as measured along the surface area of the article and in a direction perpendicular to each layer.
    Type: Grant
    Filed: March 8, 1996
    Date of Patent: February 2, 1999
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Patrick John Reilly, Ram Murthy Krishnan, George Samuel Fielding-Russell
  • Radial tires having at least two belt plies reinforced with steel monofilaments
    Patent number: 5858137
    Abstract: A pneumatic radial tire includes at least two belt plies reinforced with steel monofilaments inclined at an angle of 10.degree. to 30.degree. with respect to the equatorial plane of the tire, the monofilaments being laid at an end count ranging from 25 to 60 ends per inch and having a diameter of from 0.25 to 0.40 mm, a tensile strength of at least 4080 MPa-(2000.times.D).times.95 percent where D is the filament diameter in millimeters and a fatigue resistance of at least 3500 cycles as measured by the three-roll bending fatigue test. Preferably, the filament diameter ranges from 0.30 to 0.35 mm, the tensile strength of each monofilament is at least 4400 MPa-(2000.times.D).times.95 percent and the fatigue resistance ranges from 3500 to 6000 cycles.
    Type: Grant
    Filed: March 6, 1996
    Date of Patent: January 12, 1999
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Mahmoud Cherif Assaad, Dong Kwang Kim
  • Methods of securing splices in curable rubber articles
    Patent number: 5824383
    Abstract: A method for securing splices in uncured rubber articles prior to vulcanization and secured splices resulting therefrom. The method includes covering a splice and two ends of uncured rubber with syndiotactic 1,2-polybutadiene, adhering the syndiotactic 1,2-polybutadiene to the uncured rubber adjacent to the splice, and curing the rubber. The rubber compound to which the syndiotactic 1,2-polybutadiene is adhered does not have to contain syndiotactic 1,2-polybutadiene. In addition, because the syndiotactic 1,2-polybutadiene is preferably melted into the rubber compound, there are no uniformity problems caused by the additional layer over the splice.
    Type: Grant
    Filed: October 25, 1996
    Date of Patent: October 20, 1998
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: James Robert Tuttle, Frederick Forbes Vannan, Jr., William James Head
  • Wire coat compound containing esters of aminobenzoic acid
    Patent number: 5792800
    Abstract: This invention relates to the discovery that esters of aminobenzoic acid, when used as a replacement in whole or in part of conventional cobalt materials, maintains the rubber-to-wire adhesion properties.
    Type: Grant
    Filed: January 2, 1997
    Date of Patent: August 11, 1998
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Lawson Gibson Wideman, William Paul Francik, Adel Farhan Halasa
  • Rubber compositions containing a disodium salt of 2, 2'-dithiosalicyclic acid
    Patent number: 5783640
    Abstract: The present invention relates to rubber compositions containing a disodium salt of 2,2'-dithiosalicyclic acid of the formula: ##STR1##
    Type: Grant
    Filed: March 4, 1997
    Date of Patent: July 21, 1998
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Paul Harry Sandstrom, Lawson Gibson Wideman
  • Silica-filled rubber composition containing two different carbon blacks and tire with tread made therefrom
    Patent number: 5780537
    Abstract: The present invention relates to a silica-filled rubber composition reinforced with a combination of silica and a mixture of two defined carbon blacks and to pneumatic tires having treads comprised of such rubber composition.
    Type: Grant
    Filed: August 21, 1997
    Date of Patent: July 14, 1998
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Richard Robinson Smith, Kevin James Pyle, William Paul Francik, Paul Harry Sandstrom
  • Pneumatic tire having a single carcass ply reinforced with metallic cords, a high ending ply, turnup and locked bead construction
    Patent number: 5779829
    Abstract: The pneumatic tire has a single carcass ply reinforced with parallel metallic cords, each cord composed of at least one filament having a tensile strength of at least (-2000.times.D+4400 MPa).times.95%, where D is the filament diameter in millimeters. The turnup portion of the single carcass ply 12 in the bead portion of a pneumatic tire is interposed between the bead core 11 and a toe guard 18, and the radially outer edge of each turnup portion being in contact with the main portion of the carcass ply and extending to an end point 0.5 to 4.0 inches (12.7 to 101.6 mm) radially outward of the bead core. The toe guard 18 has a first and second end and each end is disposed directly adjacent to the carcass ply. The first end 18a of the toe guard is located on the axially inner side of the main portion of the carcass ply at a location about 0.4 to 3.
    Type: Grant
    Filed: August 24, 1995
    Date of Patent: July 14, 1998
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Amit Prakash, Donald Woodrow Gilliam, Gary Edwin Tubb
  • Heterogeneous silica carbon black-filled rubber compound
    Patent number: 5773504
    Abstract: The present invention relates to a heterogeneous silica/carbon black-filled rubber compound and a process for making the same. The process comprises(a) intimately dispersing substantially all of the silica filler in a first rubber to form a silica-filled compound;(b) separately intimately dispersing the majority of carbon black in a second rubber, which is different from said first rubber, to form a carbon black-filled compound; and(c) mixing said silica-filled compound with said carbon black-filled compound to form a heterogeneous silica/carbon black-filled rubber compound.
    Type: Grant
    Filed: April 11, 1997
    Date of Patent: June 30, 1998
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Richard Robinson Smith, Kevin James Pyle
  • Rubber compound containing aminobenzylamine
    Patent number: 5760114
    Abstract: This invention relates to the discovery that aminobenzylamine, when used as a replacement in whole or in part of conventional cobalt materials, improves the rubber-to-wire adhesion properties.
    Type: Grant
    Filed: August 26, 1996
    Date of Patent: June 2, 1998
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Lawson Gibson Wideman, William Paul Francik, Adel Farhan Halasa
  • Process for the preparation of a particular reinforced rubber composition
    Patent number: 5760110
    Abstract: The invention relates to a process for the preparation of a rubber composition involving thermomechanically mixing in a preparatory mixing step at least one sulfur vulcanizable elastomer, a particulate filler and an unsymmetrical organosilicon disulfide compound of the formula ##STR1## wherein Z is selected from the group consisting of: ##STR2## wherein R.sup.2 may be the same or different and is independently selected from the group consisting of an alkyl group having 1 to 4 carbons and phenyl; R.sup.3 may be the same of different and is independently selected from the group consisting of alkoxy groups having 1 to 8 carbon atoms and cycloalkoxy groups with 5 to 8 carbon atoms; and R.sup.1 is selected from the group consisting of a substituted or unsubstituted alkylene group having a total of 1 to 18 carbon atoms and a substituted or unsubstituted arylene group having a total of 6 to 12 carbon atoms.
    Type: Grant
    Filed: February 18, 1997
    Date of Patent: June 2, 1998
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Rene Jean Zimmer, Uwe Ernst Frank, Friedrich Visel, Thierry Florent Edme Materne, Giorgio Agostini
  • Pneumatic tire having pitch sequencing
    Patent number: 5759312
    Abstract: The present invention relates to a pneumatic tire having a tread with a plurality of load-supporting elements placed above the circumference of the tire. The tread is characterized by a pitch sequence comprising(a) from 55 to 98 total pitches;(b) only five different pitch lengths and the lowest indivisible integers used for the five pitch lengths are 7-8-9-10 and 11;(c) a ratio of the longest pitch to the shortest pitch length ranging from 1.57 to 1.58;(d) there being a constant increment in pitch length in the five different pitch lengths as one progresses from the shortest pitch length to the longest pitch length.
    Type: Grant
    Filed: September 5, 1995
    Date of Patent: June 2, 1998
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Piotr Janusz Wesolowski
  • Pneumatic tire having pitch sequencing
    Patent number: 5759310
    Abstract: The present invention relates to a pneumatic tire having a tread with a plurality of load-supporting elements placed above the circumference of the tire. The tread is characterized by a pitch sequence comprising(a) from 52 to 64 total pitches;(b) only four different pitch lengths and the lowest indivisible integers used for the pitch ratios for the four pitch lengths are 11-13-15 and 17;(c) a ratio of the longest pitch to the shortest pitch length ranging from 1.54 to 1.55;(d) there being a constant increment in pitch length in the four different pitch lengths as one progresses from the shortest pitch length to the longest pitch length.
    Type: Grant
    Filed: September 5, 1995
    Date of Patent: June 2, 1998
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Piotr Janusz Wesolowski