Patent ID: 8686087
Filing Date: 2014-04-01
Classification: C08F,C08K,C08L

Abstract:
1. An elastomer composition comprising: a) a block composite; b) an oil; and, optionally, c) a filler; or d) a polyolefin wherein the composition has a Shore A of 50 to 90; and, wherein the block composite comprises a soft copolymer, a hard polymer and a block copolymer having a soft segment and a hard segment, wherein the hard segment of the block copolymer is the same composition as the hard polymer in the block composite and the soft segment of the block copolymer is the same composition as the soft copolymer of the block composite and the block copolymer is a diblock copolymer having isotactic polypropylene blocks and ethylene-propylene blocks wherein the isotactic polypropylene blocks and ethylene-propylene blocks of the diblock copolymers are joined end-to-end.