METHOD OF PROVIDING A POLYCARBONATE ARTICLE WITH A UNIFORM AND DURABLE ORGANO-POLYSILOXANE COATING

A process for providing a uniform, durable and tenaciously adhered scratch, mar, abrasion and chemical solvent resistant organopolysiloxane coating on a polycarbonate substrate. The process includes(i) applying a priming composition comprising an emulsion of a thermosettable acrylic polymer and a hy...

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Bibliographische Detailangaben
1. Verfasser:	GOOSSENS, JOHN C
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL SPRAYING OR ATOMISING IN GENERAL THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING-UP
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Beschreibung
Zusammenfassung:	A process for providing a uniform, durable and tenaciously adhered scratch, mar, abrasion and chemical solvent resistant organopolysiloxane coating on a polycarbonate substrate. The process includes(i) applying a priming composition comprising an emulsion of a thermosettable acrylic polymer and a hydroxy ether to a polycarbonate substrate; (ii) curing the thermosettable acrylic polymer thereby forming a thermoset acrylic primer layer on said substrate; (iii) applying a top coat composition containing a further curable organopolysiloxane onto said primed substrate; and (iv) curing said further curable organopolysiloxane.