The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 12, 1980
Filed:
Feb. 15, 1979
James S Humphrey, Jr, Clemmons, NC (US);
General Electric Company, Pittsfield, MA (US);
Abstract
A coated polycarbonate article comprising a polycarbonate substrate having (i) a primer layer comprising a UV cured reaction product of a polyfunctional acrylic ester monomer and an organic silicon compound of the formula R.sup.4.sub.c SiX.sub.4-c wherein R.sup.4 is an organic group containing olefinic unsaturation, X is an alkoxy, acyloxy and aryloxy group, and c is an integer of from 1 to 3; and (ii) a thermoset silica filled organopolysiloxane top coating on said UV cured primer layer. A process for producing a coated polycarbonate article comprising (i) priming a polycarbonate substrate with a UV curable primer composition containing (a) a polyfunctional acrylic ester monomer, (b) an organic silicon compound of the formula R.sup.4.sub.c SiX.sub.4-c wherein R, X and c are as defined above, (c) a UV photoinitiator, and (d) resorcinol monobenzoate; (ii) UV curing said primer composition; (iii) applying a silica filled organopolysiloxane coating composition to the primed substrate; and (iv) curing the silica filled organopolysiloxane.