Patent ID: 6251994
Filing Date: 2001-06-26
Classification: C08G,C08L

Abstract:
A vulcanizate that has improved damping properties where the vulcanizate is prepared by the steps comprising:blending a saturated hyper-branched polymer within a vulcanizable composition of matter, wherein the vulcanizable composition of matter includes a vulcanizable elastomer; andeffecting vulcanization of the elastomer, where said hyper-branched polymer is formed by crosslinking a functionalized elastomer with a multi-functional crosslinking agent, and where the extent to which the functionalized elastomer is crosslinked by the multi-functional crosslinking agent is defined by the following formula ##EQU3##where E is the relative distance to the gel point and is a value of less than 1, r is the extent of the reaction, and r.sub.gel is the extent of the reaction at the gel point.