Patent ID: 6300447
Filing Date: 2001-10-09
Classification: C08F,Y10S

Abstract:
An ethylene-.alpha.-olefin-nonconjugated polyene random copolymer obtained by polymerizing the following components (a), (b) and (c) in the presence of a catalyst comprising a transition metal complex having at least one cyclopentadienyl skeleton and satisfying the conditions (1), (2), (3) and (4):(a) ethylene,(b) .alpha.-olefin having 3 to 20 carbon atoms, and(c) one or more nonconjugated polyene at least containing a nonconjugated polyene in which at least one or more hydrogen atoms are respectively bound to all of carbon atoms having a double bond;(1) the molar ratio of a unit derived from ethylene to a unit derived from .alpha.-olefin in the copolymer is 95/5 to 20/80,(2) the iodine value is 0 to 50 (g/100 g polymer),(3) the intrinsic viscosity [.eta.] measured in xylene at 70.degree. C. is 0.5 to 10 dl/g, and(4) the Q value (weight average molecular weight/ number average molecular weight) measured by gel permeation chromatography (GPC) is 3.0 or more.