The West Company

Allan S Jones

H James Harwood

Malcolm A Smook

Malcoln A Smook

A thermoplastic elastomeric block copolymer comprising olefin elastomeric mid block units and terminal polystyrene units having substitution in an amount sufficient to raise the glass transition temperature of the polymer. The substitution comprises cycloaliphatic or aromatic acylation and the acylation substitution is accomplished by reaction of an acylhalide with the copolymer in the presence of a catalytic amount of triflic acid.

Modified plastic elastomer block copolymers

A thermoplastic elastomeric block copolymer having terminal polystyrene units and olefin elastomeric mid block units, the copolymer having at least a glass transition temperature increasing amount of naphthoylated substitution on the polystyrene units.

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Cuyahuga Falls, OH, United States of America

Allan S Jones