Rubber composition having both high and low molecular weight pol

Details Rubber composition having both high and low molecular weight pol Rubber composition having both high and low molecular weight pol

1996-06-28

1999-09-28

Wilson, Donald R.

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

Synthetic resins

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

525237, 525241, C08L 902, C08L 906

Patent

active

059590394

ABSTRACT:
A tire having a portion formed of a rubber composition which comprises a high-molecular-weight polymer component which contains bound styrene in an amount not greater than 30% by weight, is a styrene-butadiene copolymer or a conjugated diene polymer such as polybutadiene, and has a weight-average molecular weight of at least 30.times.10.sup.4 ; and a low-molecular-weight polymer component which contains bound styrene in an amount not greater than 30% by weight, is a styrene-butadiene copolymer or a conjugated diene polymer such as polybutadiene, and has a weight-average molecular weight of from 0.2.times.10.sup.4 to 8.times.10.sup.4. The rubber composition contains 30 parts by weight of the low-molecular-weight polymer component relative to 100 parts by weight of the high-molecular-weight polymer component. The ratio between the amount of bound styrene and the vinyl linkage content falls within specific ranges. When the vulcanized rubber composition was extracted by chloroform, an amount of the extract is not less than 15% by weight of the low-molecular-weight polymer component.

REFERENCES:
patent: 4261403 (1981-04-01), Imai et al.
patent: 4304885 (1981-12-01), Omari et al.
patent: 4387757 (1983-06-01), Ogawa et al.
patent: 4537936 (1985-08-01), Takao et al.
patent: 4647614 (1987-03-01), Takao et al.
patent: 4812525 (1989-03-01), Oshima et al.
patent: 5430086 (1995-07-01), Saito et al.
patent: 5508336 (1996-04-01), Takeichi et al.
patent: 5534592 (1996-07-01), Halasa et al.
patent: 5580930 (1996-12-01), Kang et al.

Affiliated with

Also associated with

Rating

Rubber composition having both high and low molecular weight pol 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 having both high and low molecular weight pol, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rubber composition having both high and low molecular weight pol will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-704427