US 11,746,217 B2
Rubber composition, crosslinked product, and tire
Koichiro Tani, Minato-ku (JP); Naoki Sugiyama, Minato-ku (JP); Kunpei Kobayashi, Minato-ku (JP); and Ryoji Tanaka, Minato-ku (JP)
Assigned to ENEOS MATERIALS CORPORATION, Tokyo (JP)
Filed by ENEOS MATERIALS CORPORATION, Tokyo (JP)
Filed on Jan. 28, 2022, as Appl. No. 17/587,266.
Application 17/587,266 is a continuation of application No. 16/542,473, filed on Aug. 16, 2019, granted, now 11,370,900.
Claims priority of application No. 2018-173054 (JP), filed on Sep. 14, 2018.
Prior Publication US 2022/0153969 A1, May 19, 2022
Int. Cl. C08L 9/06 (2006.01); C08K 3/36 (2006.01); B60C 1/00 (2006.01); C08K 3/06 (2006.01); C08K 3/22 (2006.01); C08L 91/00 (2006.01); C08K 5/00 (2006.01); C08K 5/09 (2006.01)
CPC C08L 9/06 (2013.01) [B60C 1/0016 (2013.01); B60C 1/0025 (2013.01); C08K 3/36 (2013.01); C08K 3/06 (2013.01); C08K 3/22 (2013.01); C08K 5/0025 (2013.01); C08K 5/09 (2013.01); C08K 2003/2296 (2013.01); C08L 91/00 (2013.01)] 15 Claims
 
1. A method for producing a rubber composition, the method comprising:
mixing modified silica (B), pre-prepared by surface treatment of unmodified silica, with a modified conjugated diene-based polymer (A) and a polymer having crystalline character (C).