Suspension polymerization process for the preparation of polymer

Details Suspension polymerization process for the preparation of polymer Suspension polymerization process for the preparation of polymer

1992-06-10

1993-01-05

Teskin, Fred

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

Synthetic resins

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

525313, 526 71, 526 80, 526 73, 526 87, 526340, C08F 218, C08F21208

Patent

active

051771535

ABSTRACT:
A suspension polymerization process for the preparation of a polymeric material formed from at least two monomers, a non-gaseous monomer and a gaseous monomer. The composition of the beads or particles of the polymeric material is controlled by adding gaseous monomer to the vapor phase after polymerization of about 5% to about 90% by weight of the non-gaseous monomer or by removing a portion or substantially all of the gaseous monomer in the vapor phase before polymerization of about 70% by weight of the gaseous monomer in the aqueous suspension, or a combination thereof.

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