Roll stamper for molding substrate used for optical recording me

Details Roll stamper for molding substrate used for optical recording me Roll stamper for molding substrate used for optical recording me

1991-06-25

1994-05-10

Bushey, Charles S.

Plastic article or earthenware shaping or treating: apparatus

Press forming means, press reshaping means, or vulcanizing...

264106, 425385, 425471, 425810, B29C 5904

Patent

active

053103335

ABSTRACT:
A roll stamper has a roll substrate and a stamper fixed thereto and having a convexity and concavity preformat pattern. The stamper has an auxiliary layer, including a material different from that of the stamper and a back surface on which the convexity and concavity preformat pattern is formed. The roll substrate has a low-melting layer on its surface and the auxiliary layer is in contact with the low-melting layer so that the stamper is fixed to the roll substrate.

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