Recording disks

Details Recording disks Recording disks

1985-07-25

1987-07-14

Thomas, Alexander S.

Stock material or miscellaneous articles

Circular sheet or circular blank

Recording medium or carrier

369288, 346137, 428 64, 430270, B32B 302

Patent

active

046802118

ABSTRACT:
A recording disk for either optical or magnetic recording having improved dimensional stability as a result of reduced water absorption comprising a copolymer of a vinyl aromatic monomer and alphamethylstyrene prepared by anionic polymerization at a temperature above 61.degree. C.

REFERENCES:
patent: 3646533 (1972-02-01), Rosenblum
patent: 4376963 (1983-03-01), Knoop et al.
patent: 4415942 (1983-11-01), Frosch et al.
patent: 4510593 (1985-04-01), Daniels

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