Patent ID: 7858693
Filing Date: 2010-12-28
Classification: C08F,C08L

Abstract:
1. A block copolymer composition comprising: (a) 100 parts by weight of a solid block copolymer wherein: (b) 5 to 250 parts by weight of a tailored softening modifier which comprises a conjugated diene and is structurally related to the character of the B block of said block copolymer wherein: (c) wherein said softening modifier is polymerized in solution in the presence of a solvent in a second reactor to form a second solution and combined with a first solution prepared in a first reactor having a solvent to form a common solution, wherein said block copolymer is polymerized in said first solution or common solution, and (d) the solvent is removed from the common solution after polymerization of said block copolymer, providing an intimate mixture of said block copolymer and said tailored softening modifier.