Anodized aluminum coating

Details Anodized aluminum coating Anodized aluminum coating

1989-02-13

1990-01-30

Lusignan, Michael

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

2643286, 264DIG83, 204 383, 204 387, 4273884, 427428, 4284258, B29C 6700

Patent

active

048972312

ABSTRACT:
An anodized aluminum sheet is prepared by applying an aqueous polyurethane 40 percent dispersion coating with a threaded roller having 20-1/32 inch deep triangular threads per inch. The coating is heated by graduated heating from about 125 degrees F. to about 240 degrees F. for about 20 minutes until the material is set and non-tacky. Thereafter, without special storage or handling requirements, the coated side of the anodized aluminum is bonded in a mold under reaction injection molding pressure to a reaction injection molding material.

REFERENCES:
patent: 3935349 (1976-01-01), Terai et al.
patent: 4250585 (1986-02-01), Theriault et al.
patent: 4310390 (1982-01-01), Bradley et al.
patent: 4515919 (1985-05-01), Bradley et al.
patent: 4634563 (1987-01-01), Hancock
Kirk-Othmer, Encyclopedia of Chemical Technology, Third Edition, vol. 6, Jul. 2, 1979, pp. 404-405.

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