Process for preparing an aqueous dispersion

Details Process for preparing an aqueous dispersion Process for preparing an aqueous dispersion

1988-10-07

1989-12-12

Schofer, Joseph L.

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...

524521, C08F 216

Patent

active

048868523

ABSTRACT:
A process for preparing an aqueous dispersion, the process being characterized by comprising the steps of (i) preparing a nonaqueous dispersion of polymer particles by polymerizing a radically polymerizable unsaturated monomer (A) in an organic solvent, in which the polymer particles are insoluble, in the presence of, as a dispersion stabilizer resin, a copolymer which is prepared by copolymerizing an alkoxysilane group-containing vinyl monomer represented by the formula ##STR1## (wherein A is a group ##STR2## R.sub.1 is a hydrogen atom or methyl group, R.sub.2 is a saturated bivalent aliphatic hydrocarbon group having 1 to 6 carbon atoms, R.sub.3 and R.sub.4 are the same or different and each represent a phenyl group, alkyl group having 1 to 6 carbon atoms or alkoxy group having 1 to 10 carbon atoms, R.sub.5 is an alkyl group having 1 to 10 carbon atoms, and n is an integer of 1 to 100), a carboxyl group-containing unsaturated monomer and other polymerizable monomer (B) copolymerizable with these monomers; and (ii) converting the nonaqueous dispersion to an aqueous dispersion.

REFERENCES:
patent: 3706697 (1972-12-01), Backderf

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