Substrate for information recording medium and production method

Details Substrate for information recording medium and production method Substrate for information recording medium and production method

1989-04-28

1990-12-04

Ryan, Patrick

Stock material or miscellaneous articles

Circular sheet or circular blank

Recording medium or carrier

428 65, 428913, 3692751, 369284, 369288, 346 76L, 3461351, 264104, 264106, B32B 300

Patent

active

049753100

ABSTRACT:
A substrate for an information recording medium having an uneven preformat on its face side and a specular surface on its rear side is characterized by having a degree of crosslinking which is higher at the specular surface than the face side having the uneven preformat. Methods for producing this substrate are also disclosed.

REFERENCES:
patent: 4389719 (1983-06-01), van de Doak et al.

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