Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1996-05-21
1998-06-02
Ball, Michael W.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156 74, 1562751, 1562753, 1562757, 369286, G11B 1100
Patent
active
057593329
ABSTRACT:
A laminate optical disc which has excellent heat resistance and also has sufficient bond strength. Radiation-curing adhesive layers are formed on a pair of transparent base plates excluding the outermost circumferential portions, respectively, and an ultraviolet-curing resin is applied to the outermost circumferential portion. Then, the pair of transparent base plates are bonded together by the radiation-curing adhesive layers, and also ultraviolet light is irradiated to the ultraviolet-curing resin to fix the base plates firmly to each other along the outermost circumferential portions. In a process for producing a laminate optical disc, radiation-curing adhesive layers are formed respectively on a pair of transparent base plates, and then irradiated with a radiation excluding at least the outermost circumferential portion to be tackified. After the thus treated base plates are bonded together by the radiation-curing adhesive layers, the outermost circumferential portions of these layers are irradiated until they lose tackiness.
REFERENCES:
patent: 4717605 (1988-01-01), Urban et al.
patent: 5077120 (1991-12-01), Kato et al.
patent: 5146438 (1992-09-01), Harper
Hanzawa Shinichi
Hirai Yoshikazu
Itoigawa Masahide
Maruyama Haruhisa
Motokawa Masaaki
Ball Michael W.
Pioneer Electronic Corporation
Pioneer Video Corporation
Tolin Michael A.
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