Radial and branched block copolymers, compositions which contain

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...

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525271, 524 59, 524 68, C08F29704, C08L 5302

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active

052722147

ABSTRACT:
Radial and branched block copolymers show a structure: ##STR1## wherein: Z is a radical deriving from a tetrafunctional coupling agent;

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