Method of protecting a part made of a carbon-containing composit

Details Method of protecting a part made of a carbon-containing composit Method of protecting a part made of a carbon-containing composit

1997-05-16

1998-12-29

Pianalto, Bernard

Coating processes

Direct application of electrical, magnetic, wave, or...

Sonic or ultrasonic

427299, 427314, 427348, 4273722, 4274191, 4274432, 427560, B06B 120

Patent

active

058538216

ABSTRACT:
Prior to applying an impregnation composition constituted by a solution of at least one phosphate, a part made of composite material is treated in depth by means of an aqueous solution that penetrates into the open internal pores of the composite material, and is then dried. The aqueous solution contains an additive which, after drying, imparts to the composite material, increased wettability by the impregnation composition. The additive contained in the aqueous solution is preferably constituted by at least one wetting agent that is soluble in water and non-ionic, such as an oxyethylenated fatty acid, an oxyethylenated fatty alcohol, an oxyethylenated alkyl-phenol or an ester of a high polyol.

REFERENCES:
patent: 3351477 (1967-11-01), Wallouch
patent: 4292345 (1981-09-01), Kolesnik et al.
patent: 4439491 (1984-03-01), Wilson
patent: 5039550 (1991-08-01), Malghan et al.

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