Patent ID: 6391998
Filing Date: 2002-05-21
Classification: C08F,C08L

Abstract:
A polymer composition comprising polymers consisting essentially of saturated hydrocarbon polymers wherein the saturated hydrocarbon polymers havea) a Newtonian limiting viscosity (&eegr;0) at 190Â° C. at least 50% greater than that of a linear olefinic polymer of the same chemical composition and weight average molecular weight; b) a ratio of the rubbery plateau modulus at 190Â° C. to that of a linear polymer of the same chemical composition less than 0.5; c) a ratio of the Newtonian limiting viscosity (&eegr;0) to the absolute value of the complex viscosity in oscillatory shear (&eegr;*) (at 100 rad/sec at 190Â° C.) of at least 5 wherein the saturated hydrocarbon polymers consist of a backbone chain and sidechains derived from ethylene alone or ethylene and one or more of propylene, 1-butene, 1-pentene, 1-hexene, 1-octene, 1-decene, 1-dodecene, 4-methyl-pentene-1, styrene, alkyl styrenes, norbornene, and alky-substituted norbornenes.