초록 ▼

Block copolymer blends exhibiting improved (reduced) delamination characteristics comprise 65-90 parts of certain block copolymers having an average total molecular weight of 130,000 -250,000 with a monoalkenyl arene block mol. wt. of 20,000 -30,000 blended with 35-10 parts of a second block polymer

Block copolymer blends exhibiting improved (reduced) delamination characteristics comprise 65-90 parts of certain block copolymers having an average total molecular weight of 130,000 -250,000 with a monoalkenyl arene block mol. wt. of 20,000 -30,000 blended with 35-10 parts of a second block polymer having an average total molecular weight between about 60,000 and 100,000 with a monoalkenyl arene block mol. wt. between about 5,000 and 15,000.

대표청구항 ▼

An unvulcanized block copolymer composition suitable for the manufacture of shoe heels comprising: a. 65 to 90 parts by weight of a first block copolymer having an average total molecular weight between about 170,000 and 210,000 and a monoalkenyl arene block mol. wt. between about 20,000 and 30,000;

An unvulcanized block copolymer composition suitable for the manufacture of shoe heels comprising: a. 65 to 90 parts by weight of a first block copolymer having an average total molecular weight between about 170,000 and 210,000 and a monoalkenyl arene block mol. wt. between about 20,000 and 30,000; and b. 35 to 10 parts by weight of a second block copolymer having an average total molecular weight between about 70,000 and 90,000 and a monoalkenyl arene block mol. wt. between about 5,000 and 15,000; both of said block copolymers having at least two monoalkenyl arene polymer blocks and at least one conjugated diene polymer block and both of said block copolymers not having been hydrogenated.