Preparing optical memory medium by laminating a thermoplastic re

Plastic and nonmetallic article shaping or treating: processes – Optical article shaping or treating – Utilizing plasma – electric – electromagnetic – particulate – or...

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264107, B29D 1100

Patent

active

051604620

ABSTRACT:
A method for preparing an optical memory medium having forming an uneven guide groove on a plastic resin existing directly or through another layer on a heat-resistant sheet, and laminating an optical recording layer on the surface of the resin layer having said uneven guide groove.

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