Process for making stable latexes of block copolymers

Details Process for making stable latexes of block copolymers Process for making stable latexes of block copolymers

1993-07-20

1999-11-16

Sanders, Kriellion

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C08L 5100

Patent

active

059859792

ABSTRACT:
This invention is a process for producing stable polymer emulsions and latexes. The polymers are block copolymers of conjugated dienes and vinyl aromatic hydrocarbons. The process comprises making a solution of the polymer, adding another block copolymer as a stabilizing agent, emulsifying the polymer solution by mixing it with an aqueous phase and removing the solvent, cosolvent and excess water. The stabilizing block polymer contains an acrylic block in addition to at least one vinyl aromatic hydrocarbon and/or a conjugated diene block.

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