Stock material or miscellaneous articles – Circular sheet or circular blank – Recording medium or carrier
Patent
1984-12-04
1986-06-03
Childs, Sadie L.
Stock material or miscellaneous articles
Circular sheet or circular blank
Recording medium or carrier
427 541, 427160, 427162, 427164, 427165, 427404, 427405, 4274071, 4274072, 427409, 428 65, B32B 302
Patent
active
045929394
ABSTRACT:
An optical data storage system is contemplated, employing improved optical disk media, these characterized by multiple layers, including various under layers, an optical absorber layer, and overcoating layers, such as a "soft pad" layer (e.g., a fluoropolymer) overlaid with a "Hard" layer (e.g., a radiation-cured acrylic) as an outer protective overcoat. Taught are "Spiral" coating techniques (FIG. 3) specified for applying the "Hard" layer and preferably involving: applying the coating mix as arcuate "bead segments" about the disk center, these being formulated and applied to properly "set-up" and quickly "level" (e.g., close enough to one another and "self-leveling").
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Boling Norman L.
Mayer Thomas
Rancourt James D.
Temple Michael D.
Burroughs Corporation
Cass Nathan
Childs Sadie L.
McCormack John J.
Peterson Kevin R.
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