High transparency polymeric composition

Details High transparency polymeric composition High transparency polymeric composition

2005-03-15

2005-03-15

Mullis, Jeffrey (Department: 1711)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S098000

Reexamination Certificate

active

06867258

ABSTRACT:
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, preferably from 50,000 to 200,000.

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patent: 30 49 186 (1982-07-01), None
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patent: 54-62251 (1979-05-01), None
patent: WO 9946330 (1999-09-01), None
Derwent Abstract, AN 1979-48000B, JP 54 062251, May 19, 1979.
Derwent Abstract, AN 1997-221051, JP 09 066554, Mar. 11, 1997.

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