High unsaturation butyl rubbers with additives

Details High unsaturation butyl rubbers with additives High unsaturation butyl rubbers with additives

1978-10-11

1980-10-21

Levin, Stanford M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 318DR, 260 336AQ, 260 4247, 525333, C08C 1930, C08J 324, C08K 536

Patent

active

042293251

ABSTRACT:
Substantially gel-free, high unsaturation copolymers of isobutylene and isoprene and high unsaturation terpolymers of isobutylene, isoprene and cyclopentadiene having a number average molecular weight of at least about 90,000 and a mole percent of unsaturation of at least 5% and the process for preparing said polymers which comprises carrying out the polymerization in a homogeneous phase, introducing to the system either an aluminum halide in a soluble form or a hydrocarbylaluminum dihalide and carrying the reaction out at a temperature of less than about -100.degree. C. Vulcanizable compositions are formed from the co- and ter- polymers by reacting them with a vulcanizing amount of sulfur donor and a delayed action accelerator, wherein the vulcanized compositions can be extended with fillers, non-polar process oils and rubbers.

REFERENCES:
patent: 2521359 (1950-09-01), Garber
patent: 3080337 (1963-03-01), Minckler et al.
patent: 3808177 (1974-04-01), Thaler et al.
patent: 3928297 (1975-12-01), Thaler et al.

Affiliated with

Also associated with

Rating

High unsaturation butyl rubbers with additives does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High unsaturation butyl rubbers with additives, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High unsaturation butyl rubbers with additives will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2021946