Protection against soiling

Details Protection against soiling Protection against soiling

1979-08-13

1982-08-31

Silverberg, Sam

Coating processes

Removable protective coating applied

427155, 427156, 134 4, B65B 3300

Patent

active

043472664

ABSTRACT:
Water-resistant articles such as automobile surfaces are protected against soiling from asphalt undercoating, paint overspray and the like, by applying a pre-coat film of polymer that is readily flushed off with water after the soiling exposure is terminated. Pre-coat is preferably applied from aqueous dispersion and has sufficient levelling agent content to keep it from separating into droplets when applied on a heavily waxed surface. Fluorinated surfactants, by themselves or mixed with silicone surfactants, are effective levelling agents. Alginate and half-acid half-amide 3-dimethylaminopropylamine-reacted ethylene-maleic anhydride polymers are very good film-formers, although others can be used. The film-formers are preferably heavily plasticized with glycerine or other water-soluble plasticizer.

REFERENCES:
patent: 2372982 (1945-04-01), Richards
patent: 3492258 (1970-01-01), Krener
patent: 4055441 (1977-10-01), Taylor
patent: 4089804 (1978-05-01), Falk

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