Composition

Details Composition Composition

1984-06-18

1986-06-17

Herbert, Thomas J.

Stock material or miscellaneous articles

Composite

Of polycarbonate

346 76L, 3461351, 346137, 428413, 428457, 428458, 428913, 430945, B32B 1508, B32B 2736, B32B 2738

Patent

active

045956332

ABSTRACT:
The invention relates to information carriers for optically readable information. The information carrier is built up from an actual carrier and a metal layer provided thereon. The actual carrier is manufactured from a polycarbonate resin consisting of a mixture of an aromatic polycarbonate, an epoxy compound and usual additives. The presence of an epoxy compound in the polycarbonate resin results in a better bonding between the metal layer and the polycarbonate resin. In order to be able to manufacture the actual carrier by means of injection molding, it is to be preferred to use a polycarbonate having a weight-averaged molecular weight from 10,000 to 20,000.

REFERENCES:
patent: 3498946 (1970-03-01), Calkins
patent: 4118370 (1978-10-01), Sannes et al.
patent: 4480003 (1984-10-01), Edwards et al.
patent: 4492967 (1985-01-01), Broer et al.
patent: 4531183 (1985-07-01), Morimoto et al.

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