Levelling control of polar liquids

Details Levelling control of polar liquids Levelling control of polar liquids

1977-04-29

1978-11-14

Powell, William A.

Stock material or miscellaneous articles

Composite

Of addition polymer from unsaturated monomers

106316, 260 292R, 260885, 427385R, 428463, 428522, 526320, B32B 2730

Patent

active

041256778

ABSTRACT:
A process of modifying the levelling characteristics of a film of a polar liquid coating composition by incorporating therein 0.5-60% by weight of an amphipathic random copolymer which comprises 5-50% of a monomer which has a chain-like structure at least 80 covalent bonds long and which is soluble in poly(ethylene oxide) of molecular weight 400, and 25-95% of a (meth)acrylate monomer which comprises a chain-like moiety of at least 10 covalent atoms long and which is not soluble in poly(ethylene oxide) of molecular weight 400. The resulting copolymer may be added to polar liquid coating compositions to give useful improvements in flow and levelling characteristics.

REFERENCES:
patent: 2884339 (1959-04-01), Dannenberg
patent: 3244655 (1966-04-01), Sullivan et al.
patent: 3661827 (1972-05-01), Taft
patent: 3719647 (1973-03-01), Hardy et al.
patent: 4002703 (1977-01-01), Fahrbach et al.
patent: 4008202 (1977-02-01), Evani et al.

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