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Machine translation
1. (WO1980000940) ABRASION RESISTANT ORGANOPOLYSILOXANE COATED POLYCARBONATE ARTICLE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/000940    International Application No.:    PCT/US1979/000908
Publication Date: 15.05.1980 International Filing Date: 29.10.1979
IPC:
C08J 7/04 (2006.01)
Applicants:
Inventors:
Priority Data:
956810 01.11.1978 US
Title (EN) ABRASION RESISTANT ORGANOPOLYSILOXANE COATED POLYCARBONATE ARTICLE
(FR) ARTICLE EN POLYCARBONATE RESISTANT A L"ABRASION RECOUVERT D"UN ORGANOPOLYSILOXANE
Abstract: front page image
(EN)A coated polycarbonate article, and a process for producing said article, having improved abrasion and chemical solvent resistance comprising a polycarbonate substrate having deposited thereon (i) a primer layer comprised of a thermoplastic acrylic polymer; and (ii) a top coat containing a thermoset organopolysiloxane disposed on said primer layer. The process for producing said coated polycarbonate article comprises (i) priming the surface of a polycarbonate substrate with a thermoplastic acrylic polymer by forming a thin film of said thermoplastic acrylic polymer on the surface of said substrate, (ii) applying a top coating composition containing a further curable organopolysiloxane onto the primed substrate, and (iii) curing the further curable organopolysiloxane to form a hard, abrasion and chemical solvent resistant top coat which is tenaciously adhered to the polycarbonate substrate.
(FR)Un article en polycarbonate revetu, et un procede pour sa fabrication, possedant une resistance amelioree a l"abrasion et aux solvants chimiques comprenant un substrat en polycarbonate sur lequel est depose (i) une couche d"amorcage constituee par un polymere acrylique thermoplastique et (ii) une couche superieure comprenant un organopolysiloxane thermo-durci depose sur ladite couche d"amorcage. Le procede de la fabrication du dit article en polycarbonate revetu comprend (i) l"amorcage de la surface d"un substrat en polycarbonate avec un polymere acrylique thermoplastique par la formation d"un film mince du polymere acrylique sur la surface dudit substrat, (ii) l"application d"une composition de couche superieure comprenant un organopolysiloxane additionnel polymerisable sur le substrat amorce et (iii) la polymerisation de l"organopolysiloxane additionnel pour former une couche superieure dure, resistante a l"abrasion et aux solvants chimiques qui adhere de maniere tenace au substrat de polycarbonate.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)