Process for producing an optical recording medium with...

Details Process for producing an optical recording medium with... Process for producing an optical recording medium with...

2011-03-22

2011-03-22

Crispino, Richard (Department: 1747)

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

C156S272200, C156S289000

Reexamination Certificate

active

07909957

ABSTRACT:
The recording medium comprises at least a first (L1) and a second (L2) micro-structured stage assembled by an adhesive layer (4) and arranged between micro-structured bottom (2) and top substrates. A polymerizable layer forming the adhesive layer (4) is deposited on the first stage (L1). Then a micro-structured transparent matrix (5) is provisionally placed on the adhesive layer (4) so as to micro-structure the adhesive layer (4). Polymerization of the adhesive (4) is performed by exposure, through the matrix (5), with a polymerization light. Then the matrix (5) is removed and the second stage (L2) is deposited on the micro-structured adhesive layer (4). Then an additional adhesive layer (9) is deposited on the second stage (L2) and the micro-structured matrix (5) is definitively placed on the additional adhesive layer (9) so as to form the top substrate.

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