Optical recording medium having space therein and method of manu

Details Optical recording medium having space therein and method of manu Optical recording medium having space therein and method of manu

1987-08-24

1990-01-09

Wityshyn, Michael

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

1562757, 156276, 156295, 1563073, 3461351, 346137, 369286, 369288, B32B 3112, G11B 726

Patent

active

048926060

ABSTRACT:
An optical recording medium has a space therein and is prepared such that a pair of substrates are partially adhered by an adhesive obtained by dispersing granular or filler type spacing members therein. At least one of the substrates has an optical recording layer thereon, the recording layer faces inside and a specific gravity of the spacing member falls within a range of 0.9 to 1.3 times that of the adhesive. When applying the adhesive to part of at least one of the substrates, a mixture of the spacing members and an adhesive is stored in a tank and is supplied in a small amount in each application cycle.

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patent: 4647473 (1987-03-01), Kato et al.
patent: 4670072 (1987-06-01), Pastor et al.

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