Optical disk substrate, optical disk and aromatic polycarbonate

Details Optical disk substrate, optical disk and aromatic polycarbonate Optical disk substrate, optical disk and aromatic polycarbonate

1995-06-16

1997-05-27

Ryan, Patrick

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Circular sheet or circular blank

428648, 428412, 428913, 369288, 525462, 525469, B32B 300

Patent

active

056330600

ABSTRACT:
An optical disk substrate formed substantially of an aromatic polycarbonate from an aromatic dihydroxy component containing at least 20 mol % of 1,1-bis(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane,

REFERENCES:
patent: 5126428 (1992-06-01), Freitag et al.
patent: 5132154 (1992-07-01), Westeppe et al.
patent: 5227458 (1993-07-01), Freitag et al.
patent: 5426159 (1995-06-01), Umemura
patent: 5554473 (1996-09-01), Cais et al.

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