Branched and hydrogenated block copolymer, procedures for...

Details Branched and hydrogenated block copolymer, procedures for... Branched and hydrogenated block copolymer, procedures for...

C - Chemistry, Metallurgy

08

F

C08F 299/00 (2006.01) C08F 8/00 (2006.01) C08F 297/04 (2006.01)

Patent

CA 2047630

EE 4160 BRANCHED AND HYDROGENATED BLOCK COPOLYMER, PROCEDURES FOR ITS PREPARATION AND USE. Abstract A branched and hydrogenated block copolymer can be defined by the formula [(EB)1-HT-A-(EB)2]nX, where (EB)1 and (EB)2 are hydrogenated polydiene blocks, A is a polyvinylaromatic block, HT is a random copolymer segment made up of hydrogenated dienic monomeric and vinylaromatic units, X is a coupling radical having a valence equal to n, and n is a whole number ranging from 3 to 20. This kind of block copolymer shows excellent mechanical characteristics and resistance to atmospheric agents, even when used in combination with other resins.

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