Rubber composition

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C524S492000, C526S077000, C525S333200

Reexamination Certificate

active

06969739

ABSTRACT:
A diene polymer rubber composition comprising (A) 100 parts by weight of a raw material rubber comprising (A-1) a diene rubbery polymer which is a conjugated diene rubber polymer or conjugated diene-styrene rubbery copolymer (1) containing a modified component in an amount exceeding 60 wt. %, which modified component is obtained by reacting an active end of the rubbery polymer with a polyfunctional compound having, in its molecule, at least two epoxy groups, (2) having a molecular weight distribution Mw/Mn of 1.05 to 3.0, and (3) having weight-average molecular weight of 100,000 to 2,000,000; and based on 100 parts of the component (A), (B) 1–100 parts by weight of rubber extension oil, (C) 25–100 parts by weight of reinforcing silica, and (D) 1.0 to 20 parts by weight in total of a vulcanizing agent and a vulcanizing accelerator.

REFERENCES:
patent: 4914248 (1990-04-01), Kitagawa et al.
patent: 5134199 (1992-07-01), Hattori et al.
patent: 5804644 (1998-09-01), Nakafutami et al.
patent: 6482884 (2002-11-01), Schaal et al.
patent: 0 903 373 (1999-03-01), None
patent: 07292161 (1995-05-01), None
patent: 07-330959 (1995-12-01), None
patent: A7330959 (1995-12-01), None
patent: A10292068 (1998-11-01), None
Supplementary European Search Report dated Aug. 23, 2004.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

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

Rate now

     

Profile ID: LFUS-PAI-O-3463100

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.