Abstract: A method is disclosed for increasing the rate of vulcanization of a halogenated isobutylene sulfur rubber composition comprising heating said halogenated isobutylene rubber composition to a temperature ranging from 100° C. to 200° C., wherein said halogenated isobutylene rubber composition contains from 0.05 to 10 phr of sodium thiosulfate pentahydrate.
Type:
Grant
Filed:
June 19, 2001
Date of Patent:
April 16, 2002
Assignee:
The Goodyear Tire & Rubber Company
Inventors:
Richard Michael D'Sidocky, Bernard Matthew Bezilla, Jr., Leighton Randolph Spadone, David Michael Smith, Sr., Mark Andrew Marinko
Abstract: The present invention relates to siloxy compounds of the formulae
wherein R1, R2 and R3 are independently selected from the group consisting of alkoxy radical having from 1 to 8 carbon atoms; R4 selected from the group consisting of alkylene groups having, 1 to 15 carbon atoms and arylene and alkyl substituted arylene groups having from 6 to 10 carbon atoms; R5 is selected from the group consisting of alkyl groups having from 1 to 15 carbon atoms, aryl and alkyl substituted aryl groups having 6 to 10 carbon atoms; x is 3 when M is Al and x is 4 when M is selected from the group consisting of C, Ti, Si and Zr.
Abstract: The present invention relates to titanate compounds of the formula
wherein R 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 and x is an integer of from 2 to 8.
Type:
Grant
Filed:
September 30, 1999
Date of Patent:
April 9, 2002
Assignee:
The Goodyear Tire & Rubber Company
Inventors:
Edward John Blok, Lawson Gibson Wideman, Paul Harry Sandstrom, Mark Leslie Kralevich, Jr.
Abstract: A method and apparatus for cleaning a tire mold with frozen CO2 cleaning material wherein a portable frame is positioned on a bottom mold of a tire press and has a rotatable frame on which a nozzle support is mounted for swivel action to clean the upper mold half and the lower mold half as the nozzle support is moved radially and circumferentially of the tire mold.
Abstract: The present application relates to polymeric resinous material comprising
(1) from 5 to 70 weight percent units derived from limonene;
(2) from 5 to 70 weight percent units derived from dicyclopentadiene;
(3) from 5 to 45 weight percent units derived from indene; and
(4) from 5 to 45 weight percent units derived from tertiary-butyl styrene;
wherein the sum of the weight percent units derived from limonene and dicyclopentadiene range from 40 to 75 weight percent units of the resin and the sum of the weight percent units derived from indene and tertiary-butyl styrene range from 25 to 60 weight percent units of the resin.
Type:
Grant
Filed:
August 27, 1999
Date of Patent:
March 19, 2002
Assignee:
The Goodyear Tire & Rubber Company
Inventors:
Mark Leslie Kralevich, Jr., Edward John Blok, Paul Harry Sandstrom, Lawson Gibson Wideman, Joseph Miles Ruscak
Abstract: The present invention relates to a heterogeneous silica/carbon black-filled rubber compound and a process for making the same. The rubber compound has improved (lower) electrical resistivity compared to homogeneous silica-filled rubber compounds. The process comprises
(a) intimately dispersing from 30 to 60 phr of a silica filler and 5 to 80 phr of a carbon black in a first rubber to form a first nonproductive compound;
(b) intimately dispersing curatives in said first nonproductive compound to form a first productive compound;
(c) separately intimately dispersing from 20 to 100 phr of a silica filler in a second rubber, which is different from said first rubber, to form a second nonproductive compound; and
(d) intimately dispersing curatives in said second nonproductive compound to form a second productive compound; and
(e) mixing said first productive compound with said second productive compound to form a heterogeneous silica/carbon black-filled rubber compound.
Type:
Grant
Filed:
July 28, 2000
Date of Patent:
March 12, 2002
Assignee:
The Goodyear Tire & Rubber Company
Inventors:
Filomeno Gennaro Corvasce, Giorgio Agostini, Pierre Marie Jean Dauvister
Abstract: An endless power transmission belt comprising
(a) a tension section;
(b) a cushion section;
(c) a load-carrying section disposed between said tension section and cushion section; and
(d) at least one drive surface having a fabric layer bonded to an outer surface of the belt, the improvement comprising a coating layer on said fabric layer of a composition containing a zinc salt unsaturated carboxylic acid ester grafted hydrogenated nitrile butadiene elastomer, a curing agent for said elastomer and from 5 to 60 phr of PTFE in the form of fibers, powder and mixtures thereof, dispersed throughout said composition.
Type:
Grant
Filed:
December 21, 1999
Date of Patent:
March 5, 2002
Assignee:
The Goodyear Tire & Rubber Company
Inventors:
Matthew Thomas Morris, Wesley James Billups
Abstract: The present invention relates to compounds of the formula
where R1, R2 and R3 are independently selected from alkoxy radicals having from 1 to 8 carbon atoms and R4 is selected from the group consisting of alkenylenes, arylenes and alkyl-substituted arylenes having from 4 to 40 carbon atoms. These compounds may be used as silica couplers in rubber compositions.
Type:
Grant
Filed:
July 11, 2000
Date of Patent:
March 5, 2002
Assignee:
The Goodyear Tire & Rubber Company
Inventors:
Francois Kayser, Wolfgang Lauer, Thierry Florent Edme Materne
Abstract: A coated multi-filament reinforcing carbon yarn is encapsulated with a rubber composition. The rubber composition comprises resorcinol-formaldehyde reaction product, a vinylpyridine-styrene butadiene terpolymer, an acrylonitrile-butadiene copolymer and urea.
Type:
Grant
Filed:
May 12, 2000
Date of Patent:
February 26, 2002
Assignee:
The Goodyear Tire & Rubber Company
Inventors:
James Gregory Gillick, Cecil Bennett, Jr.
Abstract: This invention relates to a polymeric resin which contains from 35 to 65 percent by weight of polymeric units derived from dicyclopentadiene and from 65 to 35 percent by weight of polymeric units derived from beta-pinene. The polymeric resins are particularly useful in improving traction of the rubber when used in tire treads.
Type:
Grant
Filed:
November 16, 2000
Date of Patent:
February 19, 2002
Assignee:
The Goodyear Tire & Rubber Company
Inventors:
Lawson Gibson Wideman, Mark Leslie Kraleyich, Jr., Edward John Blok, Paul Harry Sandstrom
Abstract: An ejector pin assembly for a split mold in which the ejector pin is held in a retracted position in a movable mold half, pushed into the mold cavity by a knock out pin contacted by the ejector pin during opening of the mold and held in contact with the knock out pin until it is pulled into the retracted position by the knock out pin upon opening of the mold.
Type:
Grant
Filed:
April 7, 2000
Date of Patent:
February 12, 2002
Assignee:
The Goodyear Tire & Rubber Company
Inventors:
Richard Joseph Messemer, Brian Joseph Wilson, Thomas Andrew Laurich
Abstract: The present invention relates to compounds of the formula
where R1, R2 and R3 are independently selected from alkoxy radicals having from 1 to 8 carbon atoms; R4 and R5 are independently selected from the group consisting of alkylene having 1 to 12 carbons, arylenes having 6 carbon atoms and alkarylenes having 7 to 10 carbon atoms and n is an integer of from 1 to 10. These compounds may be used in rubber compositions.
Type:
Grant
Filed:
July 11, 2000
Date of Patent:
February 12, 2002
Assignee:
The Goodyear Tire & Rubber Company
Inventors:
Francois Kayser, Wolfgang Lauer, Thierry Florent Edme Materne
Abstract: The present invention relates to a pneumatic tire having a tread containing from 50 to 100 phr of a dried rubber derived from a blend of a styrene butadiene latex and an acrylonitrile butadiene latex.
Type:
Grant
Filed:
August 5, 1996
Date of Patent:
February 12, 2002
Assignee:
The Goodyear Tire & Rubber Company
Inventors:
David John Zanzig, Paul Harry Sandstrom, Joseph Walter Miller, Richard Robinson Smith
Abstract: Circumferentially spaced folding modules of a tire building drum have axially movable belt lifting and conveying nose pieces which carry wide breaker ply edges over narrow breaker ply edges laid on the drum.
Type:
Grant
Filed:
February 23, 2000
Date of Patent:
February 5, 2002
Assignee:
The Goodyear Tire & Rubber Company
Inventors:
Douglas Raymond Weaver, Joseph Anthony Farelli
Abstract: The present invention relates to a metallic cord for the reinforcement of elastomers. The cord has (a) a core composed of two filaments, (b) a single filament surrounding said core and (c) a sheath of nine filaments surrounding said core and single filament.
Abstract: This invention relates to the discovery that the combination of a bismaleimide compound and a bis benzothiazolyldithio end capped compound provides for excellent vulcanization of rubbers and results in desirable reversion resistant rubbers properties.
Type:
Grant
Filed:
December 2, 1999
Date of Patent:
December 4, 2001
Assignee:
The Goodyear Tire & Rubber Company
Inventors:
Richard Michael D'Sidocky, Neil Arthur Maly, Lawson Gibson Wideman
Abstract: The present application relates to polymeric resinous material comprising
(1) from 5 to 70 weight percent units derived from limonene;
(2) from 5 to 70 weight percent units derived from dicyclopentadiene;
(3) from 5 to 45 weight percent units derived from indene; and
(4) from 5 to 45 weight percent units derived from alpha-methyl styrene;
wherein the sum of the weight percent units derived from limonene and dicyclopentadiene range from 40 to 75 weight percent units of the resin and the sum of the weight percent units derived from indene and alpha-methyl styrene range from 25 to 60 weight percent units of the resin.
Type:
Grant
Filed:
May 16, 2001
Date of Patent:
November 13, 2001
Assignee:
The Goodyear Tire & Rubber Company
Inventors:
Mark Leslie Kralevich, Jr., Edward John Blok, Lawson Gibson Wideman, Paul Harry Sandstrom
Abstract: The present invention relates to titanate compounds of the formula
wherein R 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 and x is an integer of from 2 to 8.
Type:
Grant
Filed:
October 1, 1999
Date of Patent:
November 6, 2001
Assignee:
The Goodyear Tire & Rubber Company
Inventors:
Edward John Blok, Lawson Gibson Wideman, Paul Harry Sandstrom, Mark Leslie Kralevich, Jr.