C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 25/06 (2006.01) C08L 51/00 (2006.01) C08L 53/02 (2006.01)
Patent
CA 2292137
High transparency polymeric composition essentially consisting of: (1) from 30 to 95% of polystyrene; (2) from 70% to 5% of a composition of vinylarene--conjugated diene block copolymers; the percentage sum of (1) and (2) being equal to 100; the composition (2) consisting of: (2a) from 30 to 60% by weight of copolymers with a linear structure (2b) from 70% to 40% by weight of copolymers with a branched structure; the weight average molecular weight of the above composition (2) ranging from 30,000 to 400,000, prefera-bly from 50,000 to 200,000.
Cavallo Claudio
Custro Sergio
Gobbi Cristina
Enichem S.p.a.
Robic
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