Kraton Corporation

Kraton Polymers Research B.v.

Jochem H W Vervelde

Mark Schaapman

Jeremie G Pichereau

Wolfgang Pille-Wolf

Pieter Eduard

Jeroen Van Herrikhuyzen

Mark C Schaapman

The disclosure relates to a composition for use in tires. The rubber composition comprises a blend of a rubber component and based on 100 parts by weight (phr) of the rubber component, from 50 to 200 phr of a filler, from 0 to 25 phr of a plasticizer, and from 5 to 90 phr dimeric decarboxylated rosin (DDCR). The DDCR resin comprises 50 to 100 wt. % of polycyclic hydrocarbon compounds having one or more aliphatic, unsaturated, or aromatic groups, and 34-80 carbon atoms, with a molecular weight Mof 250-900 Da, a polydispersity index of 1.0-1.35, and an oxygen to carbon ratio of <5%.

Tire composition and method for making thereof

The disclosure relates to tire tread compositions and methods for making. The compositions include a rubber, a rosin ester resin and at least one filler. The rosin ester resin is characterized as having a PAN number of less than 25, an acid number less than 20, a hydroxyl number of less than 30, a combined acid number and hydroxyl value of less than 50. The tire tread composition has a wet grip resistance to rolling resistance indicator ratio ((tan &#x3b4; at 0&#xb0; C.)/tan &#x3b4; at 60&#xb0; C.) higher than a tire tread composition containing a comparable amount of a rosin ester having a combined acid number and hydroxyl value of more than 50.

Growing community of inventors

Almere, Netherlands

Jochem H W Vervelde