Process for treating hydrophobic surfaces

Details Process for treating hydrophobic surfaces Process for treating hydrophobic surfaces

1976-08-10

1977-11-08

Kendall, Ralph S.

Coating processes

With pretreatment of the base

Etching, swelling, or dissolving out part of the base

427304, 427305, 427322, 427400, 204 30, 204 38B, C23C 302

Patent

active

040576639

ABSTRACT:
A process treats a normally hydrophobic polymeric surface with a special phosphoric acid composition having a P.sub.2 O.sub. 5 concentration of 70-82% to make the polymeric surface hydrophilic and thus receptive to metal coatings. The process is especially suitable for surfaces of fluorocarbon polymers, such as tetrafluoroethylene and trifluorochloroethylene, and copolymers of tetrafluoroethylene and hexafluoropropylene.

REFERENCES:
patent: 3471313 (1969-10-01), Saubestre et al.
patent: 3598630 (1971-08-01), Doty et al.
patent: 3689292 (1972-09-01), Preston
patent: 3905877 (1975-09-01), Deyrup
patent: 3983267 (1976-09-01), Norris
Kendall, Smith's College Chemistry, pp. 428, 429.

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