Use of perfluoropolyethers in the form of an aqueous microemulsi

Details Use of perfluoropolyethers in the form of an aqueous microemulsi Use of perfluoropolyethers in the form of an aqueous microemulsi

1990-04-25

1991-11-05

Lusignan, Michael

Coating processes

With post-treatment of coating or coating material

Heating or drying

4273936, 428422, 428540, 428541, B05D 302

Patent

active

050630920

ABSTRACT:
Protecting marble, stone, tiles, cement, and similar materials utilized in the building industry from the action of atmospheric agents and pollutants, which comprises applying a perfluoropolyether having perfluoroalkyl end groups onto the surface of the article, said perfluoropolyether being in the form of an aqueous microemulsion.

REFERENCES:
patent: 4499146 (1985-02-01), Piacenti et al.
patent: 4745009 (1988-05-01), Piacenti et al.
patent: 4746550 (1988-05-01), Strepparola et al.

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