Water-based protective compositions for coating films

Details Water-based protective compositions for coating films Water-based protective compositions for coating films

1990-03-16

1991-09-17

Dixon, Jr., William R.

Compositions: coating or plastic

Coating or plastic compositions

Coating repellent

106270, 106271, 106272, 106245, 106267, 106268, 106901, 427154, 427155, 427156, 524269, 524276, 524261, 524277, 524475, C09D 520

Patent

active

050491865

ABSTRACT:
Water-based compositions of the water-based wax emulsion type for protecting coating films are provided by emulsifying and dispersing, as essential components, [A] a disperse phase component and [B] an emulsifier component in water. The disperse phase component [A] is formed of (a) a petroleum fraction wax having a melting point of 50.degree.-90.degree. C., (b) an oxygen-containing wax having an oxygen content of at least 3.0 wt. % and a melting point of 50.degree.-85.degree. C., (c) an ethylene/.alpha.-olefin copolymer having a number average molecular weight of 2,000-20,000, and (d) a higher fatty acid metal salt and/or a metal-modified hard wax. The compositions can form, without the need for a solvent, strong barrier coats which are resistant to rain, moisture, sunlight and air pollutants even under severe environmental conditions. After these barrier coats are used, they can be easily removed with warm water containing a small amount of a solvent or steam.

REFERENCES:
patent: 4218252 (1980-08-01), Yokoyama
patent: 4218263 (1980-08-01), Kawabata
patent: 4315957 (1982-02-01), Hereth et al.
patent: 4339276 (1982-07-01), Yokoyama et al.
patent: 4468254 (1984-08-01), Yokoyama et al.
patent: 4594109 (1986-06-01), Kawabata
Chemical Abstracts, Abstract of U.S. 4,358,564; CA 98(14):108023x, Ames.

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