Method of producing double sided optical memory disks

Details Method of producing double sided optical memory disks Method of producing double sided optical memory disks

1989-03-20

1990-04-17

Simmons, David

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156291, 156295, 156302, 156303, 1563073, 1563077, 365215, 369281, 369286, 428 64, B32B 3128

Patent

active

049177516

ABSTRACT:
Double sided optical memory disks are produced by dropping a viscous adhesive material hardenable by ultraviolet radiation at predetermined longitudinal intervals onto an elongated cloth material of uniform thickness thereby causing the adhesive material to become absorbed by and contained in the cloth material, thereafter placing this cloth material sandwichedly between two optical disk pieces each containing a recording layer, thereafter applying pressure between these pieces such that the sandwiching pieces remain separated uniformly by a predetermined separation distance, and thereafter applying ultraviolet radiation to and thereby hardening the adhesive material while the disk pieces are maintained at the uniform separation distance.

REFERENCES:
patent: 4191800 (1980-03-01), Holtzman
patent: 4390600 (1983-06-01), Ohta et al.
patent: 4414650 (1983-11-01), Ohta et al.
patent: 4467383 (1984-08-01), Ohta et al.
patent: 4489139 (1984-12-01), Ohta et al.
patent: 4544443 (1985-10-01), Ohta et al.
patent: 4610912 (1986-09-01), Takahashi et al.
patent: 4686543 (1987-08-01), Tani et al.
patent: 4740947 (1988-04-01), Ohta et al.

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