DIENE RUBBER, PROCESS FOR PRODUCING THE SAME, AND RUBBER COMPOSITION

Title:

DIENE RUBBER, PROCESS FOR PRODUCING THE SAME, AND RUBBER COMPOSITION

Document Type and Number:

WIPO Patent Application WO/1996/016118

Kind Code:

A1

Abstract:

A diene rubber (iii) is produced by mixing in solution a modified styrene-butadiene rubber (i) having a weight-average molecular weight of 150,000 to 500,000 and produded by the reaction between a diene polymer having a bonded active metal in its molecule and a modifier such as N-methyl- -caprolactam with a branched styrene-butadiene rubber (ii) having a weight-average molecular weight of 800,000 or above. The rubber (iii) and a rubber composition comprising the same and another diene rubber (iv) are excellent in the processability in an unvulcanized state and provide a vulcanized rubber improved in wear resistance, impact resilience and low-temperature characteristics.

Inventors:

SUZUKI FUMITOSHI (JP)
NAKAMURA MASAO (JP)
TOMISAWA MANABU (JP)

Application Number:

PCT/JP1995/002395

Publication Date:

May 30, 1996

Filing Date:

November 24, 1995

Export Citation:

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Assignee:

NIPPON ZEON CO (JP)
SUZUKI FUMITOSHI (JP)
NAKAMURA MASAO (JP)
TOMISAWA MANABU (JP)

International Classes:

C08C19/42; C08C19/44; C08L9/00; C08L15/00; (IPC1-7): C08L15/00; C08L9/00

Foreign References:

JPH0665418A	1994-03-08
JPH04277537A	1992-10-02
JPS57200430A	1982-12-08
JPH06316650A	1994-11-15
JPH0753784A	1995-02-28
JPH04277539A	1992-10-02
JPH03190944A	1991-08-20
JPS61271338A	1986-12-01

Other References: