Transparent, impact-resistant polystyrene on a...

Details Transparent, impact-resistant polystyrene on a... Transparent, impact-resistant polystyrene on a...

C - Chemistry, Metallurgy

08

F

C08F 297/04 (2006.01) C08F 236/10 (2006.01) C08L 53/02 (2006.01)

Patent

CA 2368312

The invention relates to block copolymers comprising at least two hard blocks S1 and S2 consisting of vinyl aromatic monomers and at least one random soft block B/S which is positioned between the hard blocks and consists of vinyl aromatic monomers and dienes. The proportion of hard blocks is more than 40 % by weight of the total block copolymer.

Copolymères blocs comportant au moins deux blocs durs S1 et S2 constitués de monomères vinylaromatiques et au moins un bloc tendre B/S statistique constitué de monomères et diènes vinylaromatiques, placé entre les deux blocs durs, la proportion des blocs durs étant supérieure à 40 % en poids, sur la base du copolymère bloc intégral.

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