Laminar structure of polycarbonate

Details Laminar structure of polycarbonate Laminar structure of polycarbonate

1982-08-30

1985-05-28

Ives, Patricia C.

Card, picture, or sign exhibiting

Signs

Multiple layer

428324, 428331, 428412, 428421, 428406, 428415, 428418, 428204, 4284256, 4284258, 428448, 428450, 428451, 428520, 428913, 428702, 428325, 428209, 428210, 428211, 350105, 264176R, G09F 1900, B32B 2736

Patent

active

045191549

ABSTRACT:
A laminar polycarbonate resin structure comprising a polycarbonate resin core lamina, an ultraviolet radiation absorbing back lamina bonded to the rear face of said core lamina, and a light reflecting front lamina bonded to the front face of said core lamina. This laminar structure is useful for making road signs and markers.

REFERENCES:
patent: 2379741 (1945-07-01), Palmquist
patent: 3043709 (1962-07-01), Amborski
patent: 3666614 (1972-05-01), Snedeker et al.
patent: 3681167 (1972-08-01), Moore
patent: 4104102 (1978-08-01), Eagon et al.
patent: 4381329 (1983-04-01), Dallmann
patent: 4382109 (1983-05-01), Olson et al.

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