The Goodyear & Tire Rubber Company

Other

Richard G Bauer

Donald J Burlett

Paul Harry Sandstrom

James B Pyke

Mark S Sinsky

Joseph Frank Geiser

David John Zanzig

Deborah A Tung

Judy Chu

Joseph W Miller, Jr

Martin Paul Cohen

Thomas Joseph Segatta

John J Verthe

George Jalics

William C Mast

Diego C Rubio, Jr

Dane Kenton Parker

Kenneth Floyd Castner

William C Tung

Johnny Dale Massie, Ii

Douglas D Callander

Marc Borowczak

Daniel Frederick Klemmensen

Mellis M Kelley

Gordon R Schorr

Jerry L Brenner

Richard M Scriver, Jr

Mark Andrew Marinko

Emil M Friedman

Pawan K Handa

Tom M Wathen

James B Pyle

Pradeep M Bapat

Mark S Guillod

This invention is based upon the discovery that cyclized polyisoprene polymers can be incorporated into tire tread compounds to improve traction, treadwear, and resistance to tear. It is further based upon the discovery that cyclized polyisoprene polymers can be blended with halobutyl rubber and/or natural rubber and can be utilized in tire innerliner formulations. The present invention more specifically discloses a tire which is comprised of a generally toroidal-shaped carcass with an outer circumferential tread, two spaced beads, at least one ply extending from bead to bead and sidewalls extending radially from and connecting said tread to said beads, wherein said tread is adapted to be ground-contacting, and wherein said tread is comprised of a sulfur cured rubber composition which is comprised of about 5 phr to about 50 phr of cyclized polyisoprene and about 50 phr to about 95 phr of at least one other rubbery polymer. The present invention further discloses a tire which is comprised of a generally toroidal-shaped carcass with an outer circumferential tread, two spaced beads, an innerliner, at least one ply extending from bead to bead and sidewalls extending radially from and connecting said tread to said beads, wherein said innerliner is comprised of a sulfur cured rubber composition which is comprised of about 5 phr to about 50 phr of cyclized polyisoprene and about 50 phr to about 95 phr of at least one other rubbery polymer selected from the group consisting of natural rubber and halobutyl rubber.

Rubber blend containing cyclized polyisoprene

A container having a zip-top with said top having the contour of a spoon integral with the upper surface of the top. The contour of the spoon being formed by a weakened edge and with the end of the spoon handle being attached to a pull-tab used for removing the spoon.

Zip-top can with spoon

A laminate of rubber and steel cord, which may be brass coated steel where the rubber is comprised of elastomer, carbon black, optionally silica, dithiodipropionic acid and prescribed methylene donor material. In one aspect, a tire is provided having at least one component as such laminate.

Tire with rubber/cord belt laminate

A pneumatic tire is provided having good rolling resistance properties without sacrificing traction. The tire has a tread that contains 2 to 15 phr thermoplastic reinforcing polymer as a replacement for 5 to 25 phr carbon black.

Tires having improved rolling resistance

A continuous method for the in-situ polymerization of plastic in an elastomeric material in a form suitable for reinforcing the elastomeric material is provided. The method comprises feeding elastomer and a monomer or monomer precursor of a reinforcing material into a mixing device, mixing the elastomer and the monomer or monomer precursor vigorously, initiating polymerization, and causing the monomers to continue to polymerize until the polymer solidifies when the melting point of the polymer produced exceeds the mixing temperature of the elastomer, terminating polymerization.

Process for the in-situ formation of reinforcing members in an elastomer

The present invention relates to polymeric alloys which comprise the reaction product of a mixture of:

Polyester/polyepoxide/rubber alloys

The subject invention relates to comb polymers having a halobutyl rubber backbone and to techniques for synthesizing such polymers. The comb polymers of this invention can be thermoplastic elastomers. For instance, halobutyl rubbers having sidechains which are derived from vinyl aromatic monomers are thermoplastic elastomers which can be made by a technique of the subject invention. Such thermoplastic elastomers typically have a chlorobutyl rubber backbone and side chains which are comprised of polystyrene. The subject invention more specifically discloses a process for grafting a lithium terminated vinyl aromatic polymer onto a halobutyl rubber which comprises: (1) capping the lithium terminated vinyl aromatic polymer with a diene monomer to produce a lithium terminated diene capped vinyl aromatic polymer, and (2) reacting the lithium terminated diene capped vinyl aromatic polymer with the halobutyl rubber to produce a halobutyl rubber having vinyl aromatic sidechains grafted thereto.

Comb polymers having a halobutyl rubber backbone

A pneumatic tire with a tread comprised of elastomer, silica, optionally carbon black, and a silica coupler comprised of dithiodipropionic acid.

Tire with silica reinforced tread

A rubber composition comprised of elastomer, silica, optionally carbon black and a silica coupler comprised of dithiodipropionic acid.

Silica reinforced rubber composition field

Reinforced elastomeric articles, such as tires, wherein the reinforcement is reticulated bacterial cellulose are provided. Reticulated bacterial cellulose has an average diameter of about 0.1 micron and a substantially infinite aspect ratio. The reinforced article comprises about 2 phr to 10 phr of the cellulose reinforcement.

Reticulated bacterial cellulose reinforcement for elastomers

This invention discloses a unique blend of polyether ester amide and sulfur vulcanized rubber having higher modulus than the rubber component without sacrificing other properties of the rubber component.

Polyether ester amide-sulfur vulcanized rubber compounds

The present invention relates to a modified rubber composition comprising:

Polyolefin/nylon reinforced rubber

The present invention relates to a blend of polypropylene and a trans-1,4-polybutadiene rubber in which the content of trans-1,4 bonds is 65 weight percent or more.

Growing community of inventors

Kent, OH, United States of America

Richard G Bauer