Coating processes – Measuring – testing – or indicating
Patent
1994-10-17
1995-09-05
Lusignan, Michael
Coating processes
Measuring, testing, or indicating
427327, 427387, 4273882, B05D 302
Patent
active
054477450
ABSTRACT:
The specification describes and claims a method of bonding a sealant to an anodised aluminium surface the method comprising the steps of (1) measuring the electrical impedance of anodised aluminium substrates, (2) selecting at least one substrate having an electrical phase shift of from 0.4 to 0.5, (3) cleaning the anodised surface of the substrate, (4) applying to the anodised surface a curable silicone sealant composition and (5) bringing about curing of the sealant composition to form a bond between the anodised surface and the sealant.
REFERENCES:
patent: 4261758 (1981-04-01), Wright et al.
patent: 4797446 (1989-01-01), Dietleir et al.
Klein, I. E. et al., "An Electrical Equivalent for Barrier Anodic Films on Aluminium", Electrochimica Acta, vol. 17, 1972, pp. 2231-2237.
Kiyohara, K. et al., "Determination of Capacitances and Conductances of the Constituent Phases from Dielectric Observations on Terlamellar Composite Systems", Japanese Journal of Applied Physics, vol. 29, No. 9, Sep. 1990, pp. 1751-1756.
Database Inspec, Institute of Electrical Engineers, Stevenage, GB Inspec No. 3244372, Debuyck et al. `Estimating the Barrier Layer Thickness of Porous Aluminium Oxide Films . . . ` & Surface and Coatings Technology, vol. 34, No. 3, 1988, Switzerland, pp. 311-318 (Abstract).
Borrousch Roger H.
Dow Corning S.A.
Lusignan Michael
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