General Electric Company

Herbert L Curry

Walter L Hall

John C Goossens

Earl T Crouch

Kirk L Kimbel

Ernest E Roberts

A coextruded moisture resistant polycarbonate article has a relative thin moisture resistant, polyphthalate-carbonate layer adhered to a relatively thick aromatic polycarbonate corelayer. The coextruded article has the high degree of transparency of aromatic polycarbonates and the moisture resistance and haze resistance of polyphthalate-carbonate. Coextruded sheet and film of the present invention may be subsequently thermoformed without losses in the desirable properties thereof.

Coextruded products with improved weatherability

Thermoplastic composites of polycarbonate and siloxane-polycarbonate block copolymer layers are produced by a coextrusion process. The composites are useful for the production of high-strength and impact resistant laminate glazing panels.

Process for preparing thermoplastic composites

Disclosed are blends of (a) an aromatic brominated polycarbonate; and (b) a polyphthalatecarbonate. Preferably, the blends also contain an amount of a silicone-polyimide. The blends exhibit good flame resistance and low smoke generation.

Polycarbonate/polyphthalate carbonate blends exhibiting good flame

A method for impregnating at least one surface of an aromatic carbonate resin article with an ultraviolet radiation screener comprising applying a protective masking element to at least one surface of said article, said protective masking element having disposed on the surface thereof which is in contact with said surface of said aromatic carbonate resin article an adhesive layer containing an effective amount of at least one ultraviolet radiation absorber, while said surface of said article is at a temperature sufficiently high for said ultraviolet radiation screener to migrate from said adhesive layer into the surface of said article in ultraviolet radiation screening effective amounts.

Method of impregnating an ultraviolet radiation screener into the

Methyl methacrylic UV protective coatings for polycarbonate film are disclosed with improved resistance to microcracking.

Methyl methacrylic coatings on thermoplastic film

Methyl methacrylic UV protective coatings for thermoplastic substrates are disclosed with improved resistance to microcracking.

Methyl methacrylic coatings on thermoplastic substrates

This disclosure describes transparent, low glare, thermoplastic sheet having improved weatherability and reduced distortion levels comprising a textured thermoplastic substrate and a methacrylic coating.

Low glare polycarbonate sheet with improved optical properties

A polycarbonate article coated with a photocured coating comprised of the photoreaction product of (1) a polythiol, (ii) a polyene, and (iii) a silicone modified polyester copolymer.

Polycarbonate article coated with a photocured coating

A photocurable coating composition suitable for coatings comprising (i) a polythiol, (ii) a polyene, and (iii) a silicone-modified polyester copolymer. These coating compositions are suitable for coating polycarbonate articles.

Photocurable polyene-polythiol-siloxane-polyester composition for coating

A photocurable composition suitable for coatings comprising a polythiol and two different polyenes. These coating compositions are suitable for coating polycarbonate articles.

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Mt. Vernon, IN, United States of America

Herbert L Curry