Protection against soiling

Details Protection against soiling Protection against soiling

1981-10-05

1985-06-25

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524238, 524247, C08L 504

Patent

active

045255016

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: 2467436 (1949-04-01), Lanning
patent: 2664365 (1953-12-01), Piana et al.
patent: 2816326 (1953-12-01), Watts
patent: 3821147 (1974-06-01), Dickson
patent: 4055441 (1977-10-01), Taylor et al.
patent: 4089804 (1978-05-01), Falk

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