Thermoplastic, aqueous latex paints having improved wet adhesion

Details Thermoplastic, aqueous latex paints having improved wet adhesion Thermoplastic, aqueous latex paints having improved wet adhesion

1994-03-07

1995-03-21

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...

524555, C08L 5500

Patent

active

053996178

ABSTRACT:
Copolymerizable amphoteric surfactants of the structural formula ##STR1## in which R.sub.1 =C.sub.1 -C.sub.2 alkyl, R.sub.2 =C.sub.1 -C.sub.2 alkyl, X.sup.- =SO.sub.3.sup.- or COO.sup.-, a=2-3, and b=1-6, are polymerized into copolymer latexes for use in paint formulations, in an amount of 1-3 parts per hundred parts by weight of monomers used to form the copolymer, to impart superior wet adhesion and freeze-thaw stability to the latex paints. The copolymer latexes contain no more than one part by weight carboxylic acid functionality per hundred part monomers. The monomers with which the amphoteric surfactants are copolymerized are selected from alkyl esters of acrylic and methacrylic acid, acrylic and methacrylic acid, styrene and mixtures thereof.

REFERENCES:
patent: 4140664 (1979-02-01), Mizuguchi et al.
patent: 4423199 (1983-12-01), Chang et al.
patent: 4529762 (1985-07-01), Hoefer et al.
G. P. A. Turner, Intro. to Paint Chemistry pp. 142-149, Chapman & Hall, New York, 1988.

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