Patent ID: 11873369
Assignee: KRATON CORPORATION
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 18:
19. A polymer composition obtained by electrophilically polymerizing in the presence of a Bronsted acid or a Lewis acid catalyst, a monomer comprising any of a 1,3-diisoalkenylarene (I), a 1,4-diisoalkenylarene (H), or mixtures thereof:, wherein R1 is H or a C1-C8 alkyl group;
wherein Ar is an arene ring;
wherein the polymer has a solubility in a hydrocarbon solvent at 25° C. of at least 10 wt. and forms a substantially gel-free solution in a hydrocarbon solvent;
wherein the polymer has a Tg of 50° C. to 300° C., measured using DSC according to ASTM D3418; and
wherein the polymer has a weight average molecular weight Mw of 8,000 to 70,000 Dalton, measured according to ASTM D5296.