Plastic and nonmetallic article shaping or treating: processes – Optical article shaping or treating – Utilizing plasma – electric – electromagnetic – particulate – or...
Patent
1991-09-16
1992-08-11
Woo, Jay H.
Plastic and nonmetallic article shaping or treating: processes
Optical article shaping or treating
Utilizing plasma, electric, electromagnetic, particulate, or...
264 16, 264 17, 264106, 264145, 264162, 425385, 425810, B29D 1700
Patent
active
051376610
ABSTRACT:
A process for producing an optical recording medium, including the steps of: melt-extruding a resin to form a resin sheet; passing the resin sheet under pressure between a first roller having a predetermined unevenness pattern and a second roller disposed opposite thereto before the resin sheet is hardened, thereby to transfer the unevenness pattern to a surface of the resin sheet; and forming a recording layer having an organic coloring matter on the surface of the resin sheet provided with the unevenness pattern; wherein the steps are conducted while the resin sheet is moved.
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Kanome Osamu
Ohkubo Yukitoshi
Santoh Tsuyoshi
Satoh Tetsuya
Sugata Hiroyuki
Canon Kabushiki Kaisha
Nguyen Khanh P.
Woo Jay H.
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