Method for primerless coating of plastics

B - Operations – Transporting – 05 – D

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B05D 3/02 (2006.01) B32B 25/08 (2006.01)

Patent

CA 1200160

METHOD FOR PRIMERLESS COATING OF PLASTICS ABSTRACT OF THE DISCLOSURE A method for securing protective silicone resin coastings to plastics without the use of primers is dis- closed. Shock curing a silicone resin coating composition on transparent plastic substrates, such as polycarbonate, at a temperature not substantially below 140°C is found to give a tough, adherent coating without distorting the substrates or diminishing its optical clarity, and with- out the use of primers. The suitability, after incorpor- ation into the silicone resin coating composition, of certain silylated ultraviolet light screening compounds for shock curing is also disclosed.

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