Process for manufacturing optical disks by pressing

Details Process for manufacturing optical disks by pressing Process for manufacturing optical disks by pressing

1984-07-02

1987-04-21

Weston, Caleb

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156219, 156220, 156221, 156222, 156228, 156242, 156245, 264106, 264107, 3461351, B32B 3120

Patent

active

046594078

ABSTRACT:
The invention provides a process for manufacturing optical disks by pressing and disks obtained by such a process, for improving the inherent flatness of the optical disk of the thick type, obtained by a process of pressing between a recorded master and another master, recorded or not depending on whether it is a question of a single or double side disk, this latter being formed from a stack of at least two thin sheets of thermoformable material subjected to a pressure-temperature cycle after which bonding together of the sheets and duplication of the information from the masters for information recording are obtained.

REFERENCES:
patent: 2606851 (1952-08-01), O'Mahony et al.
patent: 3687769 (1972-08-01), Dague
patent: 4288481 (1981-09-01), Birt et al.
patent: 4315878 (1982-02-01), Dover et al.
patent: 4440586 (1984-04-01), Lippits et al.

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