HYDROCARBON POLYMERS

Brand	Owner (click to sort)	Address	Description
GRACE	W. R. GRACE & CO.	New York NY	HYDROCARBON POLYMERS, SPECIFICALLY POLYETHYLENE AND POLYSTYRENE;
VYBAR	Petrolite Corporation	St. Louis MO	HYDROCARBON POLYMERS;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

Lithium-terminated polymers of one or more conjugated dienes and of one or more mono alkenyl arenes are coupled by reaction with an alkoxy silane coupling agent having the formula Rx-Si-(OR')y, where x is 0 or 1, x+y=4, R and R' are the same or different, R is selected from aryl hydrocarbon radicals, linear alkyl hydrocarbon radicals and branched alkyl hydrocarbon radicals, and R' is selected from linear and branched alkyl hydrocarbon radicals, such that the resulting polymer composition contains less than about ten weight percent of uncoupled polymer diblock. The polymer compositions are subsequently selectively hydrogenated, and are useful in a variety of compounds and end use applications.