Multilayer, UV-radiation stabilized polycarbonate panel

Details Multilayer, UV-radiation stabilized polycarbonate panel Multilayer, UV-radiation stabilized polycarbonate panel

1989-09-07

1992-03-24

Sluby, P. C.

Stock material or miscellaneous articles

Composite

Of polycarbonate

428419, 428178, 264173, 26421123, 26421112, 15624413, B32B 2736, B32B 312, B29C 4706

Patent

active

050987909

ABSTRACT:
Synthetic resin panel consisting of a core layer (1) of polycarbonate resin covered on at least one of its outer sides by a storage layer (2) containing between 5 and 15% by weight of an UV absorber, and on that side of said storage layer facing away from said core layer, by a cover layer (3) of synthetic resin containing an UV absorber, wherein said UV absorber, incorporated in said cover layer (3), different from said UV absorber incorporated in said storage layer (2), is of low volatility and is present at a concentration exceeding 2% by weight.

REFERENCES:
patent: 4707393 (1987-11-01), Vetter

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