Thermoplastic block copolymers

Details Thermoplastic block copolymers Thermoplastic block copolymers

C - Chemistry, Metallurgy

08

F

400/2055

C08F 297/02 (2006.01) C08F 257/00 (2006.01) C08F 257/02 (2006.01)

Patent

CA 1051140

ABSTRACT OF THE DISCLOSURE Thermoplastic copolymers wherein said copolymer is selected from the group consisting of block copolymers having the general formulae (I) A-B-A, (II) A-B-A-B-A and (III) xB-[A-B]n-yA, and graft copolymers having the general formula (IV) [?]m, wherein m and n are integers greater than or equal to 2; x and y are 0 or 1, and y is 0 when n is 2; and A and B are mutually incompatible vinyl aromatic polymer blocks selected from the group of poly(alkyl styrene), poly(.alpha.-methyl styrene) and poly(alkyl.alpha.-methyl styrene) having a solubility parameter difference of greater than 0.7.

207848

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