Transparently coated polycarbonate component, its production and use
AssigneeCovestro Deutschland AG
InventorsDirk Hinzmann, Timo KUHLMANN, Peter CAPELLEN
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Abstract
The present invention relates to a multilayer construction containing a support or frame composed of a nontransparent polymer as layer c) and a transparent layer b) based on a thermoplastic polymer having a solar transmittance TDS of more than 20%, determined in accordance with ISO 13837:2008 at a layer thickness of 4 mm, and a siloxane-based protective layer a) which is applied to layer c) and layer b), wherein the siloxane layer a) is selectively postcured in selected regions by means of ultrashort-wave UV radiation, and to a method for selective surface treatment.
Claims15
-14. (canceled)
A multilayer construction containing a carrier or frame of a nontransparent polymer as layer c) and a transparent layer b) based on a thermoplastic polymer which has a solar transmittance TDS of more than 20% determined according to ISO 13837:2008 at a layer thickness of 4 mm and a siloxane-based protective layer a) applied atop layer c) and layer b), wherein the siloxane layer a) is selectively post-cured using ultrashortwave UV radiation in selected regions.
A process for selective surface treatment of a 2-component part containing a carrier or frame made of a nontransparent polymer (layer c)) and a transparent portion according to layer b), wherein the transparent portion is enclosed by the carrier on at least 2 sides and wherein a siloxane-based layer a) is applied atop the carrier or frame and the transparent portion, wherein the siloxane-based layer a) is selectively post-cured using ultrashortwave UV radiation in selected regions.
Dependencies are inferred from the claim text.