	US 11,891,516 B2
	Tire composition and method for making thereof
Jochem H. W. Vervelde, Almere (NL); Jeremie G. Pichereau, Almere (NL); Jeroen van Herrikhuyzen, Almere (NL); Mark Schaapman, Almere (NL); and Pieter Eduard, Almere (NL)
Assigned to KRATON CORPORATION, Houston, TX (US)
Filed by Kraton Polymers LLC, Houston, TX (US)
Filed on Dec. 15, 2021, as Appl. No. 17/644,405.
Claims priority of provisional application 63/199,335, filed on Dec. 21, 2020.
Prior Publication US 2022/0195155 A1, Jun. 23, 2022
Int. Cl. C08K 3/36 (2006.01); C08K 3/04 (2006.01); C08K 3/22 (2006.01); C08K 5/5419 (2006.01); C08K 5/09 (2006.01); B60C 1/00 (2006.01); C08J 3/18 (2006.01); C08L 93/04 (2006.01); C08L 9/06 (2006.01)

CPC C08L 9/06 (2013.01) [B60C 1/0016 (2013.01); C08J 3/18 (2013.01); C08K 3/04 (2013.01); C08K 3/22 (2013.01); C08K 3/36 (2013.01); C08K 5/09 (2013.01); C08K 5/5419 (2013.01); C08J 2309/06 (2013.01); C08J 2493/04 (2013.01); C08K 2003/2296 (2013.01)]

20 Claims

1. A rubber composition comprising 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;

from 5 to 90 phr dimeric decarboxylated rosin (DDCR) resin comprising 50 to 100 wt. % of polycyclic hydrocarbon compounds having one or more aliphatic, unsaturated or aromatic groups, and 34-80 carbon atoms;

wherein the DDCR has:

a molecular weight M_nof 250-900 Da, measured using gel permeation chromatography and polystyrene calibration standards;

a polydispersity index of 1.0-1.35; and

an oxygen to carbon ratio of <5%;

wherein the DDCR is formed by decarboxylating a dimeric rosin acid or by dimerizing a decarboxylated rosin.