Small particle size non-surface active protective colloid-stabil

Details Small particle size non-surface active protective colloid-stabil Small particle size non-surface active protective colloid-stabil

1987-03-30

1989-01-31

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...

526200, 526201, 5262192, C08L 3100, C08F 220, C08F 404

Patent

active

048016438

ABSTRACT:
Disclosed are aqueous polyacrylate dispersions, i.e., aqueous latex dispersions of acrylate polymers, having improved rheological and stability characteristics, prepared by polymerization of acrylic esters, methacrylic esters and mixtures thereof in the presence of, by weight of the total monomer content, (a) from about 0.05 to about 5% of at least one non-surface active protective colloid, (b) from about 0.01 to 1% of at least one or more initiators selected from the group consisting of azo based initiators and organo-soluble, water-insoluble peroxide initiators, and (c) greater than 0.01% to about 0.05% of a water-soluble peroxide initiator. The resultant aqueous polyacrylate dispersions are useful in the manufacture of latex paints, binders for nonwoven materials, water-based inks, paper coatings and water-borne adhesives, such as pressure-sensitive adhesives.

REFERENCES:
patent: 2776273 (1957-01-01), Richard
patent: 3513120 (1970-05-01), Pohlemann et al.
patent: 4265796 (1981-05-01), Mueller Mall et al.
patent: 4352916 (1982-10-01), Fondoll
patent: 4492780 (1985-01-01), Zimmerschied
Polymeric Material vol. 54 Craig pp. 370-374 Feb. 86 ACS.

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