Polymeric opaque particles and process for making same

Details Polymeric opaque particles and process for making same Polymeric opaque particles and process for making same

1988-09-23

1991-06-25

Bleutge, John C.

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

Synthetic resins

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

525308, 525902, 427411, 428 84, C08F25906, C08F26506, B05D 704, B32B 2710

Patent

active

050267825

ABSTRACT:
A core/shell polymer is capable of increasing a composition's whiteness or opacity. The core and shell polymers have either a crystalline structure or have a T.sub.g of at least about 50.degree. C. The core polymer has a different composition than the composition of the shell polymer. The core polymer comprises vinylidene halide monomers and/or vinyl halide monomers. The core and shell polymers are either homopolymers or copolymers.

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