Patent Number: 6,294,624

Title: Modified diene elastomer and its preparation

Abstract: A modified diene elastomer prepared by a process comprising the steps of polymerizing a diolefin compound containing a conjugated double bond in a liquid phase in the presence of a cobalt compound, an organic aluminum compound containing a halogen atom, and water, to give a solution containing a diene elastomer, and reacting the diene elastomer with an elastomer-modifying compound is favorably employed for the manufacture of tire tread, particularly when it is employed in combination with silica as a filler.

Inventors: Inoue; Tokuji (Ichihara, JP), Nakajima; Tetsuji (Ichihara, JP), Muraoka; Kiyoshige (Kobe, JP), Yagi; Noriko (Kobe, JP)

Assignee: Ube Industries, Ltd.

International Classification: B60C 1/00 (20060101); C08C 19/25 (20060101); C08C 19/00 (20060101); C08F 36/04 (20060101); C08L 19/00 (20060101); C08F 36/00 (20060101); C08F 004/42 ()

Expiration Date: 09/25/2018