Protecting materials subject to degradation by atmospheric and p

Details Protecting materials subject to degradation by atmospheric and p Protecting materials subject to degradation by atmospheric and p

1983-11-28

1985-02-12

Lusignan, Michael R.

Stock material or miscellaneous articles

Composite

Of polyisocyanurate

252384, 428540, B32B 2700, C14C 900

Patent

active

044991460

ABSTRACT:
Marble, stones, tiles and articles manufactured from such materials are protected from the degrading action of atmospheric and polluting agents by applying to the surfaces of said materials and manufactured articles, a protecting agent which is a perfluoropolyether as such or diluted with a solvent or a mixture of solvents having a boiling temperature lower than 80.degree. C., preferably a fluorochlorohydrocarbon.

REFERENCES:
patent: 3795533 (1974-03-01), Gavri
patent: 4085137 (1978-04-01), Mitsch et al.
patent: 4321177 (1982-03-01), Wilkinson
patent: 4327139 (1982-04-01), Shaefer et al.

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