Method of mass producing damage-resistant compact discs

Details Method of mass producing damage-resistant compact discs Method of mass producing damage-resistant compact discs

1987-01-30

1989-06-06

Lowe, James

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

1562728, 264 13, 264 14, 264 25, 264 25, 264 78, 264106, 264220, 264284, 264DIG68, 427 531, B29D 1100, B32B 302

Patent

active

048368741

ABSTRACT:
Compact discs are continuously mass produced by continuously rotating a master roller about whose periphery a plurality of optical disc patterns are sequentially arranged in order to form inverse patterns on an elongated film fed to the roller at successive contact locations spaced apart of one another lengthwise of the film during each rotation. Each optical disc has a metallized layer which is protected from damage by the provision of sheets of non-negligible thickness.

REFERENCES:
patent: 2274570 (1942-02-01), Westerkamp
patent: 2334233 (1943-11-01), Wood
patent: 3768946 (1973-10-01), Matuschke
patent: 4294782 (1981-10-01), Froehlig
patent: 4615753 (1986-10-01), Gregg
patent: 4679183 (1987-07-01), Staar

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