Method for refinishing rigid data storage discs

Details Method for refinishing rigid data storage discs Method for refinishing rigid data storage discs

1984-06-15

1985-07-09

Powell, William A.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

134 3, 156645, 156651, 156656, 156664, 156667, C23F 102, B44C 122, C03C 1500, C03C 2506

Patent

active

045280630

ABSTRACT:
A method for refinishing rigid data storage discs for recoating including the steps of removing a magnetically alterable coating and its sub-interfacing material from rigid data storage discs to expose disc substrates, inspecting the substrate for surface discontinuities, measuring the thickness and flatness of the substrates, resurfacing the surfaces of the substrates to remove surface unevenness and surface discontinuities, polishing the surfaces of the substrates to produce a visually mar-free flat substrates, and rinsing and drying the substrate before recoating.

REFERENCES:
patent: 3003967 (1961-10-01), Brady et al.
patent: 3923567 (1975-12-01), Lawrence
patent: 4439289 (1984-03-01), Viglione
patent: 4475981 (1984-10-01), Rea

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