Impact-modified poly(vinyl chloride) exhibiting improved low-tem

Details Impact-modified poly(vinyl chloride) exhibiting improved low-tem Impact-modified poly(vinyl chloride) exhibiting improved low-tem

1997-12-30

2000-02-29

Seidleck, James J.

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

Synthetic resins

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

525 80, 525 84, 525902, C08L 5104, C08L 2706

Patent

active

060310472

ABSTRACT:
Poly(vinyl chloride), when impact modified with a core/shell acrylic impact modifier whose shell is predominantly formed from 50-90 parts of polymerized units of methyl methacrylate and 10-50 parts of polymeric units of a C.sub.2 -C.sub.8 alkyl acrylate and whose core is a crosslinked copolymer mainly of polymeric units of butyl acrylate, exhibits improved fusion behavior, allowing conversion to an intimate, fused, processable blend at lower temperatures and faster rates, than when the shell of the impact modifier is substantially formed from methyl methacrylate alone.

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