Metals coated with protective coatings of annealed perfluorinate

Details Metals coated with protective coatings of annealed perfluorinate Metals coated with protective coatings of annealed perfluorinate

1989-02-06

1991-12-03

Herbert, Jr., Thomas J.

Stock material or miscellaneous articles

Composite

Of polyisocyanurate

428421, 428463, B32B 1508

Patent

active

050699741

ABSTRACT:
A passive metal is coated with a perfluorocarbon copolymer cation-exchange polymer and subsequently annealed. The annealed polymer coating acts as a barrier to anions which attack and breakdown the passivity mechanism of such passive metals, thereby protecting the passive metals against localized corrosion, such as crevice or piting corrosion, caused by anionic attack.

REFERENCES:
patent: 2393967 (1946-02-01), Brubaker
patent: 2559752 (1951-07-01), Berry
patent: 2593583 (1952-04-01), Lontz
patent: 3041317 (1962-06-01), Gibbs et al.
patent: 3282875 (1966-11-01), Connolly et al.
patent: 3560568 (1971-02-01), Resnick
patent: 3718627 (1971-02-01), Grot
patent: 3770547 (1971-11-01), Kelsey
patent: 3784399 (1974-01-01), Grot
patent: 4089759 (1978-05-01), Krumpelt et al.
patent: 4115209 (1978-09-01), Freiser et al.
patent: 4391844 (1983-07-01), Baczek et al.
patent: 4417969 (1983-11-01), Ezzell et al.
patent: 4507194 (1985-03-01), Shimomura et al.
patent: 4536274 (1985-08-01), Papadakis et al.
patent: 4618404 (1986-10-01), Pellegri
D. C. Silverman and J. E. Carrico, "Electrochemical Impedance Techniqu-A Practical Tool for Corrision Prediction", Corrision-Nace, vol. 44, No. 5, May, 1988, pp. 280-287.
H. W. Starkweather, Jr., "Crystallinity in Perfluorosulfonic Acid Ionomers and Related Polymers" Macromolecules, vol. 15, No. 2, pp. 320-323, Mar.-Apr. 1982.
G. A. Olah et al., "Polymer Films on Electrodes. 4. Nalfion-Coated Electrodes and Electrogenerated Chemiluminescence of Surface-Attached RU(BPY).sub.3 2+", Journal of the American Chemical Society, vol. 102, pp. 6641-6642 (1980).
C. R. Martin et al., "Dissolution of Perfluorinated Ion Containing Polymers" Analytical Chemistry, vol. 54, No. 9, pp. 1639-1641, Aug. 1982.
C. R. Martin et al., "Effect of Hydrophobic Interactions on the Rates of Ionic Diffussion in Nafion Films at Electrode Surfaces", J. Electroanal. Chem., vol. 159, pp. 127-135 (1983).
M. N. Szentirmay et al., "Ion-Exchange Selectivity of Nafion Films on Electrode Surfaces", Analytical Chemistry, vol. 56, No. 11, pp. 1898-1902, Sep. 1984.
I. Sekerka et al., "Reference Electrode Based on Perfluorosulfonic Acid Membranes", Analytical Letters, vol. 15(A7), pp. 611-619 (1982).
A. Bettelheim et al., "A New Polymer Ag/AgCl Reference Electrode for Electrochemistry with No Contacting Electrolyte Solution", J. Electrochem. Soc., Apr. 1988, pp. 1041-1042.
R. B. Moore et al., "Procedure for Preparing Solution-Cast Perfluorosulfonate Ionomer Films and Membranes", Anal. Chem., vol. 58, pp. 2569-2570 (1986).
G. Gebel et al., "Structure and Related Properties of Solution-Cast Perfluorosulfonated Ionomer Films", Macromolecules, vol. 20, No. 6, pp. 1425-1428 (1987).

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