Method of recycling disk recording medium and apparatus for reco

Details Method of recycling disk recording medium and apparatus for reco Method of recycling disk recording medium and apparatus for reco

1998-07-09

2000-05-23

Osele, Mark A.

Adhesive bonding and miscellaneous chemical manufacture

Differential fluid etching apparatus

With microwave gas energizing means

156584, 134 1, B32B 3500

Patent

active

060662298

ABSTRACT:
A method of recycling a disk recording medium includes the steps of retaining the disk recording medium in a liquid medium, the disk recording medium having a layered structure including a substrate, a dye layer, a reflective film, and a protective layer; radiating ultrasonic waves onto the disk recording medium such that the substrate and the reflective film are separated from each other; and bringing a solution into contact with the substrate separated from the reflective film such that the dye layer is separated from the substrate in order to recover the substrate, the solution dissolving the dye layer.

REFERENCES:
patent: 5220754 (1993-06-01), Tayebi et al.
patent: 5306349 (1994-04-01), Nee
patent: 5445555 (1995-08-01), Tokura et al.
patent: 5520865 (1996-05-01), Sargent, III et al.
patent: 5619898 (1997-04-01), Witt

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