Data storage media containing transparent polycarbonate blends

Details Data storage media containing transparent polycarbonate blends Data storage media containing transparent polycarbonate blends

2005-08-30

2005-08-30

Buttner, David J. (Department: 1712)

Stock material or miscellaneous articles

Circular sheet or circular blank

Recording medium or carrier

C428S412000, C525S146000

Reexamination Certificate

active

06936324

ABSTRACT:
The invention relates to transparent blends of polymers suitable for use in optical articles; the polymers contain residues of BCC and its derivatives, and have properties particularly suited for use in high density optical data storage media. The polymers further contain residues of other polymers, such as α-methyl polystyrene and polystyrene derivatives; bisphenols, such as bisphenol A; cycloaliphatic polyester resins, such as PCCD and its derivatives or some combination of each.

REFERENCES:
patent: 01123860 (1989-05-01), None
patent: 02103258 (1990-04-01), None
Kim, Effects of Polycarbonate Molecular Structure on the Miscibility with Other Polymers, Macromolecules vol. 24 #12; Jun. 8, 1992, pp. 3097-3105.
Letter from TPLO Rejecting application Data Storage Media Containing Transparent Polycarbonate Blends.

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