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...
Patent
1991-02-07
1993-08-03
Marquis, Melvyn I.
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...
525152, 525177, C08L 6702, C08F 800
Patent
active
052329771
ABSTRACT:
It is often desirable to increase the modulus of rubbers which are utilized in manufacturing a wide variety of articles. For instance, carbon black is frequently added to rubbers to increase the modulus thereof. However, the incorporation of fillers, such as carbon black, into rubbers typically results in the rubber being more difficult to process. This invention discloses the incorporation of certain thermotropic liquid crystalline polymers into rubbers in order to improve the processability of the rubber and also to increase the modulus thereof. This invention specifically discloses a rubber composition having a high modulus and excellent processability which is comprised of a blend of (1) at least one elastomer, and (2) from about 2 phr to about 40 phr of at least one thermotropic liquid crystalline polymer containing an aliphatic spacer which has a crystalline to nematic transition at a temperature which is within the range of about 110.degree. C. to about 180.degree. C.
REFERENCES:
patent: 4728698 (1988-03-01), Isayev et al.
patent: 4772421 (1988-09-01), Ikenaga et al.
patent: 4777204 (1988-10-01), Ikenaga et al.
patent: 4798849 (1989-01-01), Thomas et al.
Lorenzo et al. Polymer Preprints, 29(1), 1988, pp. 488-490.
Carter John D.
Smith Richard R.
Lee Helen F.
Marquis Melvyn I.
Rockhill Alvin T.
The Goodyear Tire & Rubber Company
LandOfFree
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.
Profile ID: LFUS-PAI-O-2270871