Method for primerless coating of plastics

Details Method for primerless coating of plastics Method for primerless coating of plastics

1985-10-09

1988-11-08

Herbert, Thomas J.

Coating processes

With post-treatment of coating or coating material

Heating or drying

427387, 4273935, 428412, 428447, B05D 302, B32B 2708, B32B 2736

Patent

active

047833475

ABSTRACT:
A method for securing protective silicone resin coatings to plastics without the use of primers is disclosed. Shock curing a silicone resin coating composition on transparent plastic substrates, such as polycarbonate, at a temperature not substantially below 140.degree. C. is found to give a tough, adherent coating without distorting the substrate or diminishing its optical clarity, and without the use of primers. The suitability, after incorporation into the silicon resin coating composition, of certain silylated ultraviolet light screening compounds for shock curing is also disclosed.

REFERENCES:
patent: 3708225 (1973-01-01), Misch et al.
patent: 3976497 (1976-08-01), Clark
patent: 3986997 (1976-11-01), Clark
patent: 4027073 (1977-05-01), Clark
patent: 4159206 (1979-06-01), Armbruster et al.
patent: 4177315 (1979-12-01), Ubersax
patent: 4188451 (1980-02-01), Humphrey, Jr.
patent: 4277287 (1981-07-01), Frye
patent: 4278804 (1981-07-01), Ashby et al.

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