Patent Number: 6,310,158

Title: Sulfur-vulcanizable butyl rubber and rubber composition containing the same

Abstract: A butyl rubber having at least one repeating unit of the formulae (I) and (II): ##STR1## wherein R independently represents a hydrogen atom or at least one group selected from the group consisting of methyl, ethyl, propyl, isopropyl and butyl groups.

Inventors: Ishikawa; Kazunori (Hiratsuka, JP), Yatsuyanagi; Fumito (Hiratsuka, JP)

Assignee: The Yokohama Rubber Co., Ltd.

International Classification: C08F 8/34 (20060101); C08F 8/00 (20060101); C08K 5/00 (20060101); C08L 9/06 (20060101); C08K 5/39 (20060101); C08K 5/47 (20060101); C08L 9/00 (20060101); C08F 028/06 ()

Expiration Date: 10/30/2018