The Goodyear & Tire Rubber Company

Beijing University of Chemical Tehcnology

Joseph John Kulig

Kelsey Elizabeth Cantwell

Stephan Rodewald

Dane Kenton Parker

George Jim Papakonstantopoulos

Robert Alan Woloszynek

Frank James Feher

Gabor Kaszas

Paul Harry Sandstrom

Ping Zhang

Georges Marcel Victor Thielen

Aaron Scott Puhala

David Andrew Benko

Andreas Frantzen

Anne Therese Peronnet-Paquin

Carolin Anna Welter

Manuela Pompei

Thomas Franklin Spilker

Mingliang Du

Jeannot Frieden

Hannah Long

Michael Joseph Rachita

Gilles Bonnet

Michael Leslie Senyek

Nihat Ali Isitman

Annette Lechtenboehmer

Xiaoping Yang

Claude Ernest Felix Boes

Liqun Zhang

Surendra K Chawla

Francesco Sportelli

William Alain Talbot

Hans-Bernd Fuchs

Klaus Unseld

Maurice Peter Catharina Jozef Klinkenberg

Rebecca Lee Dando

He Qiao

Runguo Wang

Weiwei Lei

Jennifer Elizabeth Labbe

Xinxin Zhou

Clemens Manuel Sill

Samy Laroussi Mzabi

Stefan Wilms

Kuo-chih Hua

Jennifer Labbe

Nicolas Charles Louis Bilger

Hannah Marie Prince Long

This invention is based upon the unexpected finding that a hydrocarbon traction resin can be dispersed into the oil used in making an oil extended emulsion and solution rubbers to attain improved performance characteristics. For instance, this technique allows for the hydrocarbon traction resin to be incorporated into the rubber at a higher level than would ordinarily be possible using conventional mixing techniques. In tire tread compounds this provides improved wet traction characteristics without compromising cured stiffness (dry traction) and ultimate properties (chip/chunk resistance). This technique can be used to incorporate a resin into virtually any synthetic rubber that can benefit from being oil extended. It is of particular value in making resin modified solution styrene-butadiene rubber (SSBR), emulsion styrene-butadiene rubber (ESBR), high cis-1.4-polybutadiene rubber, and synthetic polyisoprene rubber which are formulated for use in tire tread compounds.

Resin modified oil extended rubber

The present invention is directed to the use of modified vegetable oils in rubber compositions and in tires.

Fatty acid-modified vegetable oils in rubber compositions and tires

A preparation method of itaconate-butadiene bio-based engineering rubber belongs to the bio-based engineering rubber area. The bio-based engineering rubber of the present disclosure is formed through chemical crosslinking of copolymers, which are formed by polymerization of itaconate and butadiene emulsion. The number average molecular weight of the itaconate-butadiene copolymer is about 53000-1640000, and weight-average molecular weight is about 110000-2892000. Itaconate-butadiene copolymers are formed by polymerization of itaconate and butadiene emulsion, then and chemical crosslinking of the copolymer is performed to form bio-based engineering rubber using a traditional sulfur vulcanizing system. The bio-based engineering rubber has high molecular weights as well as lower glass-transition temperatures and can be vulcanized using the traditional sulfur vulcanizing system. The bio-based engineering rubber of the present disclosure has same physic-mechanical property as well as processability as compared to rubber prepared using conventional techniques and may be used for manufacturing tire treads and conveyor belts.

Preparation method of itaconate-butadiene bio-based engineering rubber

Resin-modified vegetable oils in rubber compositions and tires

The present invention is directed to a method of making an asymmetric polysulfide, comprising the step of simultaneously reacting an olefinically unsaturated compound, elemental sulfur, and a thiol in the presence of a catalytic amount of a base to produce the asymmetric polysulfide.

Method for the synthesis of asymmetric polysulfides

The present invention is directed to novel functionalized vegetable oils, a method of making the oils, their use in rubber compositions, and their use in tires.

Functional disulfide vegetable oils, method of making and use in rubber compositions and tires

The present invention is directed to novel silane disulfide vegetable oils, a method of making the oils, their use in rubber compositions, and their use in tires.

Silane disulfide vegetable oils, method of making and use in rubber compositions and tires

It has been unexpected found that silylated triglyceride oils can be incorporated into tire tread rubber formulations that include reinforcing fillers to provide improved wet traction characteristic, rolling resistance, and tread-wear without compromising cured stiffness (dry traction) and ultimate properties (chip/chunk resistance). The level of silica coupling agent needed in such formulation can also typically reduced. The present invention more specifically discloses a rubber formulation which is comprised of (1) a rubbery polymer; (2) a reinforcing filler, such as silica or carbon black; and (3) a silylated triglyceride oil. The silylated triglyceride oil will include silyl groups of the structural formula: &#x2014;(CH)&#x2014;Si(OR), wherein n represents an integer within the range of 1 to 8, and wherein R represents an alkyl group containing from 1 to 8 carbon atoms.

Reinforced rubber containing silylated triglyceride oil

A non-pneumatic tire is described that includes a ground contacting annular tread portion, a shear band, wherein the shear band is formed of a first and second inextensible layer, and a low modulus material positioned between the first and second inextensible layer. The non-pneumatic tire further includes a connecting web positioned between a hub and the shear band, wherein the connecting web is formed of one or more spokes extending from an inner ring to an outer ring, wherein the one or more spokes are formed from a material reinforced with a three dimensional spacer structure.

Non-pneumatic tire

A self-inflating tire assembly includes an air tube mounted within a tire sidewall groove. The air tube is in contacting engagement with opposite angled groove surfaces surrounding the air tube. A segment of the air tube is flattened from an expanded diameter to a flat diameter by bending and compression of the groove in a rolling tire footprint to force air evacuated from the flattened segment along a tube air passageway. The sidewall groove extends into an annular, axially extending, sidewall surface such as an axially oriented surface of a tire chafer protrusion located in non-contacting relationship with the rim. The opposite groove surfaces comprise a rubber composition, the rubber composition comprising: a diene based rubber; from 0.25 to 5 parts by weight, per 100 parts by weight of rubber (phr), of a self-lubrication agent capable of migrating from the rubber composition to the groove surface and disposing on the groove surface as a liquid; and from 1 to 15 parts by weight, per 100 parts by weight of rubber (phr), of a vulcanization modifier for use in the second rubber composition include &#x3b1;,&#x3c9;-bis(N,N'-dihydrocarbylthiocarbamamoyldithio)alkanes, bismaleimides, and biscitraconimides.

Air maintenance tire

The present invention is directed to a pneumatic tire comprising a sidewall component, the sidewall component including an air passageway extending at least partially about the circumference of the tire, the air passageway surrounded by and in fluid communication with a surface comprising a rubber composition, the rubber composition comprising: a diene based rubber; from 0.25 to 5 parts by weight, per 100 parts by weight of rubber (phr), of a self-lubrication agent capable of migrating from the rubber composition to the groove surface and disposing on the groove surface as a liquid; and from 1 to 15 parts by weight, per 100 parts by weight of rubber (phr), of a vulcanization modifier for use in the second rubber composition include &#x3b1;,&#x3c9;-bis(N,N'-dihydrocarbylthiocarbamamoyldithio)alkanes, bismaleimides, and biscitraconimides.

The present invention achieves increased filler interaction by incorporating a small amount (a few units per chain of rubbery polymer) of a conjugated triene monomer, such as alloocimene, randomly throughout the polymer chain of a rubbery polymer or at the chain ends of the rubbery polymer. The incorporation of the conjugated triene monomer leads to the formation of a polymer containing highly reactive conjugated diene units. These conjugated diene units can chemically react with carbon black leading to superior reinforcement. Alternatively, these conjugated diene units can be used for functionalization of the polymer with silica interactive/reactive groups using Diels Alder reactions. This functionalization of the rubbery polymer can conveniently be conducted in a mixer, such as a Banbury mixer, a mill mixer, or the like.

Copolymers of conjugated triene monomers for improved filler interaction

The present invention achieves increased filler interaction by incorporating a small amount (a few units per chain of rubbery polymer) of a conjugated triene monomer, such as alloocimene, randomly throughout the polymer chain of a rubbery polymer or at the chain ends of the rubbery polymer. The incorporation of the conjugated triene monomer leads to the formation of a polymer containing highly reactive conjugated diene units. These conjugated diene units can chemically react with carbon black leading to superior reinforcement. Alternatively, these conjugated diene units can be used for functionalization of the polymer with silica interactive/reactive groups using Diels Alder reactions. This functionalization of the rubbery polymer can conveniently be conducted in a mixer, such as a Banbury mixer, a mill mixer, or the like. The present invention more specifically discloses a rubbery polymer having repeat units which are comprised of (1) an olefin monomer selected from the group consisting of conjugated diolefin monomers and monoolefin monomers and (2) a conjugated triene monomer. The subject invention further reveals a rubbery composition which is comprised of the reaction product of (I) a rubbery polymer having repeat units which are comprised of (1) an olefin monomer selected from the group consisting of conjugated diolefin monomers and monoolefin monomers and (2) a conjugated triene monomer and (II) a dienophile and/or dienophile which is functionalized with a group which is capable of reacting with a filler selected from the group consisting of carbon black, silica, starch, and cellulose.

The invention includes terminating compounds, polymers, rubber compositions and tires. The terminating compounds can provide terminating groups on the polymer. Polymers can be homopolymers, copolymers and terpolymers, and can include repeat units provided from conjugated diene monomers. Rubber compositions can be made from the polymers, and tires and various parts of tires can be made from those rubber compositions.

Terminating compounds, polymers, and their uses in rubber compositions and tires

Growing community of inventors

Tallmadge, OH, United States of America

Joseph John Kulig