Aqueous dispersion of polymers containing polar groups and amide

Details Aqueous dispersion of polymers containing polar groups and amide Aqueous dispersion of polymers containing polar groups and amide

1978-12-05

1981-02-03

Anderson, Harold D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 17A, 260 296NR, 260 296HN, 260 296H, 260 296WB, 525 1, 525258, 525194, 526200, 526209, 428522, C08L 3326

Patent

active

042487544

ABSTRACT:
This invention relates to aqueous dispersions of synthetic polymer particles, particularly those used as film-forming media in surface coating compositions.
The problem of maintaining under moist conditions the adhesion to a substrate of a film formed from a surface coating composition having such an aqueous dispersion as a film former can be substantially overcome by using a dispersion wherein the film-forming polymer comprises (a) polar groups selected from amine, ureido and thioureido groups (b) a proportion of monomer units derived from acrylamide and methacrylamide, and (c) a proportion of poly(alkylene oxide). The proportions of these components present by weight of the film-forming polymer are at least 0.3% of (a), at least 0.3% of (b), at least 0.5% of (c) and from 1.4-9.0% of (a)+(b)+(c).
These aqueous polymer dispersions may be used in interior or exterior surface coatings.

REFERENCES:
patent: 3839500 (1974-10-01), Dexter

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