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Machine translation
1. (WO1980001007) ABRASION RESISTANT SILICONE COATED POLYCARBONATE ARTICLE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/001007    International Application No.:    PCT/US1979/000906
Publication Date: 15.05.1980 International Filing Date: 29.10.1979
IPC:
B29D 11/00 (2006.01), C08J 7/04 (2006.01)
Applicants:
Inventors:
Priority Data:
956873 01.11.1978 US
Title (EN) ABRASION RESISTANT SILICONE COATED POLYCARBONATE ARTICLE
(FR) ARTICLE DE POLYCARBONATE REVETU DE SILICONE RESISTANT A L"ABRASION
Abstract: front page image
(EN)A process, and the article produced thereby, for providing a uniformly and tenaciously adhered abrasion-resistant and chemical resistant non-opaque coating on polycarbonate articles. The process comprises priming the surface of the polycarbonate article with an adhesion promoting thermoplastic acrylic polymer by forming a thin film of said thermoplastic acrylic polymer on the surface of the polycarbonate article, applying a silica filled organopolysiloxane coating composition onto the primed polycarbonate article, and thereafter curing the silica filled organopolysiloxane to form a hard, abrasion and chemical solvent resistant top coat which is tenaciously adhered to the polycarbonate article. The non-opaque coated polycarbonate article produced by this process comprises a polycarbonate substrate having (i) a primer layer comprised of a thermoplastic acrylic polymer, and (ii) a thermoset silica filled organopolysiloxane top coat.
(FR)Procede de fabrication, et article ainsi produit pour obtenir une couche non-opaque resistante a l"abrasion et aux produits chimiques, adherente de maniere uniforme et tenace sur un article de polycarbonate. Le procede comprend l"amorcage de la surface de l"article de polycarbonate par un polymere acrylique thermoplastique, provoquant l"adhesion, en formant une couche mince du polymere acrylique thermoplastique sur la surface de l"article de polycarbonate, l"application d"une composition de revetement en organopolysiloxane charge en silice colloidale sur l"article de polycarbonate amorce puis de la polymerisation de l"organopolysiloxane charge en silice pour former une couche superieure dure, resistante a l"abrasion et aux solvants chimiques, qui adhere de maniere tenace a l"article en polycarbonate. L"article non-opaque de polycarbonate revetu fabrique par ce procede comprend un substrat en polycarbonate possedant (i) une couche d"amorcage constituee par un polymere acrylique thermoplastique et (ii) une couche superieure, thermodurcie, d"organopolysiloxane charge en silice.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)