Process of making substantially external surfactant-free vinyl p

Details Process of making substantially external surfactant-free vinyl p Process of making substantially external surfactant-free vinyl p

1982-06-01

1984-04-03

Levin, Stanford M.

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...

524534, 524535, 524536, C08L 3308, C08L 3502

Patent

active

044408978

ABSTRACT:
A substantially external surfactant-free vinyl polymer emulsion product is disclosed. The process includes a first stage of dispersing in water an amine or inorganic base neutralized saturated polymer. The saturated polymer is formed from a monomeric mixture of carboxylic acid or anhydride containing ethylenic unsaturation with optionally additional copolymerizable ethylenically unsaturated monomers. In a second stage, a monomeric mixture of vinyl monomers is added to the water dispersion and the resultant mixture polymerized so as to form the substantially external surfactant-free vinyl polymer emulsion product.

REFERENCES:
patent: 4064087 (1977-12-01), Das
patent: 4151143 (1979-04-01), Blank et al.

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