The Goodyear & Tire Rubber Company

Philippe Schmit

Christian Jean-Marie Kaes

Luisa Fernanda Munoz Mejia

Georges Marcel Victor Thielen

Pascal Patrick Steiner

Nihat Ali Isitman

Julia Martine Francoise Claudine Tahon

Carolin Anna Welter

Manuela Pompei

Christian Kaes

William Alain Talbot

Bodo Ahrens

Jérôme Joel Daniel Delville

Jean-Claude Knepper

Eric Engeldinger

Vaibhav Nawale

Antonia Felicitas Broemmel

Betul Buehler

Benoit Duez

Marc-André Robert Paulus

Dawn Michelle Johnson

Ahilan Manisekaran

Jean-Sébastien Thomann

Jerome Delville

The present disclosure relates to a rubber composition comprising at least rubber, and reinforcement materials, the reinforcement materials comprising silica particles and Kraft lignin nanoparticles, wherein the phr ratio between the silica particles and Kraft lignin nanoparticles is ranging between 3 and 20; wherein the Kraft lignin nanoparticles have an average diameter size ranging between 10 and 100 nm as determined by scanning electron microscopy; and wherein the Kraft lignin nanoparticles have a glass transition temperature of at least 150° C. as determined by Differential Scanning Calorimetry.

Rubber composition with dual fillers reinforcement

In accordance with the invention, a ply coat rubber composition for a tire ply comprises from 60 phr to 90 phr of natural rubber, from 10 phr to 40 phr of synthetic polyisoprene, from 30 phr to 80 phr of pre-silanized and precipitated silica, from 0.1 phr to 5 phr of a cobalt salt, up to 15 phr of carbon black, up to 5 phr of resin, and up to 8 phr of oil. Moreover, the invention is directed to a tire comprising such a rubber composition.

Ply coat rubber composition and a tire comprising a ply coat rubber composition

The present invention is directed to a pneumatic tire comprising a tread, the tread comprising a rubber composition comprising from 30 to 80 phr of a styrene-butadiene rubber having a Tg ranging from &#x2212;70 C to &#x2212;40 C, from 10 to 50 phr of a high vinyl polybutadiene having a Tg ranging from &#x2212;40 C to &#x2212;5 C and has an isomeric vinyl 1,2 content in a range of from 50 to 90 percent by weight, and from 10 to 30 phr of a natural rubber or synthetic polyisoprene, silica, a blocked mercaptosilane, a traction resin, and liquid plasticizer selected from the group consisting of a low molecular weight polybutadiene functionalized with a hydroxyl functional group and sunflower oil.

Pneumatic tire

The present invention is directed to a pneumatic tire comprising a tread, the tread comprising a rubber composition comprising a diene elastomer, a pre-hydrophobated precipitated silica, a blocked mercaptosilane, a terpene-phenol resin, and a low molecular weight polybutadiene functionalized with a hydroxyl functional group, wherein the pre-hydrophobated precipitated silica is hydrophobated prior to its addition the rubber composition by treatment with at least one silane selected from the group consisting of alkylsilanes, alkoxysilanes, organoalkoxysilyl polysulfides and organomercaptoalkoxysilanes and optionally at least one dispersing aid selected from the group consisting of fatty acids, diethylene glycols, polyethylene glycols, fatty acid esters of hydrogenated or non-hydrogenated Cor Csugars, polyoxyethylene derivatives of fatty acid esters of hydrogenated or non-hydrogenated Cor Csugars.

Pneumatic tire having tread with hydroxy-terminated polybutadiene

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Changemelle, Belgium

Philippe Schmit