Block copolymer compositions and process for the preparation...

Details Block copolymer compositions and process for the preparation... Block copolymer compositions and process for the preparation...

C - Chemistry, Metallurgy

08

L

400/3010

C08L 53/02 (2006.01) C08F 297/04 (2006.01) C08G 81/02 (2006.01) C09J 153/02 (2006.01)

Patent

CA 1323712

A B S T R A C T BLOCK COPOLYMER COMPOSITIONS AND PROCESS FOR THE PREPARATION THEREOF A block copolymer composition comprising: 1) 10-60 % by weight of a block copolymer [(A-B1)?1]m-Y1 2) 20-90 % by weight of a block copolymer [(A-B2)?2]n-Y2, and 3) 0-50 % by weight of a block copolymer (A-B2)?3, in which A represents an aromatic vinyl compound polymer block having a molecular weight of 10,000-30,000, B1 a conjugated diene polymer block, having a molecular weight of 25,000-100,000, B2 a conjugated diene polymer block having a molecular weight of least 1.2 times as high as that of B1 and Y1 and Y2 a halogenated Si and Sn compound residue, respectively and 11-1-3, m-2-4, 12-1-6, n-2-4 and 13-1-6; an adhesive composition containing said block copolymer composition; and a process for the preparation of said block copolymer composition by using the appropriate techniques.

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