US 12,264,245 B2
Rubber compositions for pneumatic tires
Erin Sheepwash, Cuyahoga Falls, OH (US)
Assigned to Bridgestone Corporation, Chuo-ku (JP)
Appl. No. 17/606,620
Filed by Bridgestone Corporation, Chuo-ku (JP)
PCT Filed Apr. 26, 2020, PCT No. PCT/US2020/029998
§ 371(c)(1), (2) Date Oct. 26, 2021,
PCT Pub. No. WO2020/220010, PCT Pub. Date Oct. 29, 2020.
Claims priority of provisional application 62/840,778, filed on Apr. 30, 2019.
Claims priority of provisional application 62/839,027, filed on Apr. 26, 2019.
Prior Publication US 2022/0235203 A1, Jul. 28, 2022
Int. Cl. C08L 7/00 (2006.01)
CPC C08L 7/00 (2013.01) [C08L 2205/03 (2013.01)] 21 Claims
 
1. A vulcanizable rubber composition comprising:
(i) a rubber component including a polyisoprene elastomer;
(ii) a sulfur-based curative;
(iii) zinc oxide; and
(iv) a eutectic composition having at least a portion of the zinc oxide dissolved therein.