Patent ID: 6750306
Filing Date: 2004-06-15
Classification: C08F,Y10S

Abstract:
An olefin copolymer comprising one or more linear or branched &agr;-monoolefin monomers having from 2 to 20 carbon atoms randomly copolymerized with at least one &agr;, &ohgr;-non-conjugated diene having from 5 to 18 carbon atoms, the copolymer characterized by branched polymer segments comprising the copolymerized a-monoolefin and diene copolymerized at one olefinic end group of the diene, the copolymer having a number average molecular weight as measured by (3PC-Viscometry of less than about 5 times the entanglement molecular weight-of-the polymer and a degree of polymerization of less than 400 monomer repeating units if made using the saint catalyst system under the same polymerization conditions but without the presence of the &agr;, &ohgr;-diene component, the copolymer having a gel content of less than about 1.5 wt %.