Patent ID: 8993672
Filing Date: 2015-03-31
Classification: B29C,C08J,C08L

Abstract:
1. A polymer gel composition comprising a mixture of (a) one or more semicrystalline polyolefin block or graft copolymers and (b) one or more fluid diluents, wherein: each semicrystalline polyolefin copolymer is an A-B block or graft co-polymeric material comprised of two or more blocks or grafts of a semicrystalline polyolefin A bridged by one or more blocks of an amorphous polyolefin B; each fluid diluent is miscible or partially miscible with the amorphous B blocks of the semicrystalline block copolymer, and does not dissolve crystals of the semicrystalline A blocks or grafts of the semicrystalline block or graft copolymer; said crystals of the semicrystalline A blocks or grafts of the semicrystalline block or graft copolymer have been deformed by a mechanical or thermomechanical process to produce a material having an initial elastic modulus at strains less than 1, an elastic tangent modulus at large strains just prior to break, the ratio of the tangent modulus prior to break to the initial modulus exceeding 50, and those large strains being more than 70% recovered when the stress or restraining force is removed.