Rubber composition and tire using the same

Details Rubber composition and tire using the same Rubber composition and tire using the same

2007-12-04

2007-12-04

Harlan, Robert D. (Department: 1713)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C526S335000, C526S347000

Reexamination Certificate

active

11140733

ABSTRACT:
The present invention provides a rubber composition, in which abrasion resistance and gripping performance are improved in a balanced manner and bleeding of the components is inhibited, and a tire using the composition. Specifically, the present invention provides a rubber composition comprising (B) 10 to 200 parts by weight of a low molecular weight aromatic vinyl-conjugated diene copolymer having weight average molecular weight of 1.0×103to 1.0×105and aromatic vinyl content of 10 to 75% by weight, wherein the hydrogenation ratio of double bonds in the conjugated diene part is 20 to 60%, based on (A) 100 parts by weight of a rubber component containing at least 60% by weight of a styrene-butadiene copolymer having weight average molecular weight of 5.0×105to 2.5×106and styrene content of 20 to 60% by weight, wherein the amount of vinyl bonds in the butadiene part is 20 to 70%; which satisfies the following equationin-line-formulae description="In-line Formulae" end="lead"?5% by weight<Bv<(As+10% by weight)in-line-formulae description="In-line Formulae" end="tail"?when As (% by weight) is the styrene content of copolymer (A) and Bv (% by weight) is the aromatic vinyl content in the butadiene part of copolymer (B), and a tire using the same.

REFERENCES:
patent: 2006/0167160 (2006-07-01), Nakagawa et al.
patent: 0 502 728 (1992-09-01), None
patent: 0 585 012 (1994-03-01), None
patent: 1 253 170 (2002-10-01), None
patent: 1 535 959 (2005-06-01), None
patent: 63-101440 (1988-05-01), None
patent: 9-278944 (1997-10-01), None
patent: 2000-129037 (2000-05-01), None
patent: 2003-89731 (2003-03-01), None
patent: 2003-253051 (2003-09-01), None
patent: WO-2004/000931 (2003-12-01), None
patent: WO 2004000931 (2003-12-01), None
patent: WO-2004/011545 (2004-02-01), None

Affiliated with

Also associated with

Rating

Rubber composition and tire using the same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Rubber composition and tire using the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rubber composition and tire using the same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3826557