Binders for paints

Details Binders for paints Binders for paints

1979-04-17

1981-05-12

Michl, Paul R.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

526315, 526316, C08K 517

Patent

active

042670918

ABSTRACT:
Binders which comprise (A) an aqueous emulsion of a copolymer A, having a glass transition temperature of 0-50.degree. C., of monoolefinically unsaturated carboxylic acid esters, with or without styrene, vinyl acetate, vinyl chloride and acrylonitrile, which copolymer contains, as copolymerized units, small amounts of monoolefinically unsaturated monocarboxylic acids and/or dicarboxylic acids and/or their amides (of which the nitrogen atoms may or may not be alkyl-substituted and/or alkylol-substituted) and small amounts of monomers containing carbonyl groups, (B) from 0.05 to 1 mole, per mole of carbonyl groups present in the copolymer A, of a water-soluble aliphatic dihydrazine compound and (C) from 0 to 0.02 mole, per mole of dihydrazine compound, of a water-soluble zinc, manganese, cobalt and/or lead salt, or particularly suitable for use in paints and pebble dash renderings, since they give films which adhere particularly well to alkyd resin primers and which show particularly little tendency to whitening.

REFERENCES:
patent: 3051685 (1962-08-01), Slocombe
patent: 3317370 (1967-05-01), Kekish
patent: 3345336 (1967-10-01), Kuhlkamp
patent: 3597381 (1971-08-01), Ripley
patent: 3896085 (1975-07-01), Larsson

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