Patent ID: 6689851
Filing Date: 2004-02-10
Classification: C08F,C08J

Abstract:
An intermediate for making molded articles comprising at least one thermoplastic ethylene polymer having a CBDI greater than 50 percent treated with a crosslinking agent in an amount less than sufficient to cause the formation of 0.5 wt % or more gel under melt processing conditions and yet sufficient to satisfy the condition:log &eegr;0.1m&gE;log &eegr;0.1v+xâ€ƒâ€ƒ(IV) and log &eegr;100m&lE;log &eegr;100v+yâ€ƒâ€ƒ(V) wherein &eegr;0.1m and &eegr;100m are the viscosities of the rheology-modified polymer in poise measured at 190Â° C. and shear rates of 0.1 and 100 radian/second, respectively, &eegr;0.1v and &eegr;100v are the viscosities of the unmodified polymer (i.e., the â€œvirginâ€  polymer) in poise measured at 190Â° C. and shear rates of 0.1 and 100 radian/second, respectively, x is a number having a value of 0.50 and y is a number having a value of 0.10; andlog &tgr;0m&gE;log &tgr;0v+0.1â€ƒâ€ƒ(VI) wherein log &tgr;0m and log &tgr;0v are log relaxation times of the rheology-modified polymer and the unmodified polymer respectively; orMSm&gE;MSv+0.5 cNâ€ƒâ€ƒ(VII) wherein MSm and MSv are melt strengths in cN at 150 C of the rheology-modified polymer and the unmodified polymer, respectively.