The Goodyear & Tire Rubber Company

Robert Vincent Dennis-Pelcher

Paul Harry Sandstrom

Junling Zhao

Aaron Patrick Murray

Luisa Fernanda Munoz Mejia

Jean-Noel Marsat

Ryan Michael Schmidt

Justin Yinket Che

Karmena Izabela Anyfantaki

Marine Sophie Francoise Wassen

Bartosz Zielinski

Matthew Adam Goldberg

Jeffery Hakim Hayat

A tire having a tread comprising a tread rubber composition comprising from 10 phr to 100 phr of styrene butadiene rubber comprising monomers selected from one or more of recycled and bio-based monomers, from 0 phr to 90 phr of elastomers selected from one or more of natural rubber, polybutadiene rubber comprising monomers selected from one or more of recycled and bio-based monomers, and synthetic polyisoprene comprising monomers selected from one or more of recycled and bio-based monomers, and from 40 phr to 250 phr of a filler comprising one or more of recycled or bio-based silica, and recycled or bio-based carbon black, from 1 phr to 90 phr of hydrocarbon resin which is one or more of i) based on recycled monomers, bio-based monomers or a combination thereof, and ii) a plant resin. Furthermore, the tire comprises reinforced rubber plies, comprising cords, optionally made of a bio-based or recycled material, coated with a rubber coating composition comprising from 80 phr to 100 phr of elastomers selected from one or more of natural rubber and synthetic polyisoprene comprising monomers selected from one or more of recycled and bio-based monomers, and from 30 phr to 90 phr of a filler comprising one or more of recycled or bio-based silica and recycled or bio-based carbon black.

Sustainable tire

Described herein are conductive rubber compositions including a rubber component and one or more electrically conductive carbon compounds. In another aspect, the conductive rubber compositions can be prepared by first adding the one or more conductive carbon components into the polymer phase, thereby creating a filler network in the continuous polymer phase in the finished product. In a further aspect, the conductive carbon component can be or include one or more of the following: carbon black, a short carbon fiber, graphite powder, or graphene powder. Following mixing, the conductive rubber compositions can optionally be vulcanized. The conductive rubber compositions have good mechanical properties and electrical resistivity and can be processed using existing equipment.

Conductive rubber compositions and articles composed of the same

The present invention is directed to a tire layer (e.g., tire tread or carcass layer) having a rubber composition including a pyrazolone-based compound in combination with reinforcing filler material and optionally a processing aid, and tires using the same, that provides desirable tire performance properties, such as improvements in tear strength without negatively impacting stiffness or hysteresis. In one embodiment, the tire layer includes a rubber composition having an elastomer (e.g., natural or isoprene rubber), a pyrazolone-based compound, reinforcing filler selected from carbon black only, carbon black/silica blends only, or graphene, functionalized graphene, carbon nanotubes, functionalized carbon nanotubes or mixtures thereof further optionally with carbon black, and an optional processing aid, such as a metal glycerolate, in desirable amounts to provide enhanced tear strength without negatively impacting stiffness or hysteresis.

Tire rubber composition using pyrazalone-based compound

Growing community of inventors

Uniontown, OH, United States of America

Robert Vincent Dennis-Pelcher