Patent ID: 6221992
Filing Date: 2001-04-24
Classification: C08F,Y10S

Abstract:
A copolymer of ethylene with propylene, having a content of ethylene derived units of from about 50% to 85% by mole, a content of propylene derived units of from about 15 to 50% by mole, and having the following characteristics:(A) the % by mole content of propylene in the copolymer (%P) and the ratio EPE/(EPE+PPE+PPP), wherein EPE, PPE and PPP represent the sequences ethylene/propylene/ethylene, propylene/propylene/ethylene and propylene/propylene/propylene respectively in the copolymer, satisfy the following relationship:0.01%P+EPE/(EPE+PPE+PPP).gtoreq.1(B) less than 2% of the CH.sub.2 groups in the polymeric chain are in sequences (CH.sub.2).sub.n, wherein n is an even number.