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
1986-09-29
1988-01-26
Lieberman, Allan M.
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...
525236, 525237, C08L 700, C08L 900, C08L 906, C08K 304
Patent
active
047217499
ABSTRACT:
Rubber compositions for use in tire tread compounds comprise co-vulcanizable blends of high 1,2 (vinyl) content polybutadiene of high molecular weight and high cis-1,4-poly-butadiene of high molecular weight. The blends show a high degree of homogeneity, so that they act effectively as a single polymer, and exhibit a substantial absence of a glass transition temperature. Both of the polymers in the composition should have a relatively high weight average molecular weight. The relative amounts of the two polymers are such as to obtain a 1,2-group content in the blend of from 35-65 percent (i.e. from 35-65 percent of the polymer units are in the 1,2-configuration). The blend may be compounded with conventional compounding ingredients for curing purposes, and optionally with additional polymers as natural rubber and/or SBR. The vulcanizates of the compositions exhibit a superior and unexpected balance of resilience, traction and wear properties.
REFERENCES:
patent: 3935180 (1976-01-01), Sogiara et al.
patent: 4370448 (1983-01-01), Leland
Encyclopedia or Polymer Science and Technology, vol. 10, pp. 700-702, John Wiley & Sons, 1969.
Odar Joseph
Von Hellens Walter
Lieberman Allan M.
Polysar Limited
LandOfFree
Tire tread compounds based on vinyl polybutadiene does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Tire tread compounds based on vinyl polybutadiene, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tire tread compounds based on vinyl polybutadiene will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1468376