Stock material or miscellaneous articles – Circular sheet or circular blank – Recording medium or carrier
Reexamination Certificate
2008-09-16
2008-09-16
Buttner, David (Department: 1796)
Stock material or miscellaneous articles
Circular sheet or circular blank
Recording medium or carrier
C528S204000
Reexamination Certificate
active
11116567
ABSTRACT:
An optical data storage comprising a thermoplastic copolycarbonate is disclosed. The copolycarbonate contains at least one unit derived from dihydroxydiphenyl ether and at least one unit derived from at least one member selected from the group consisting of 4,4′dihydroxybiphenyl and 1,1-bis-(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane.
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Erkelenz Michael
Heuer Helmut-Werner
Meyer Alexander
Möthrath Melanie
Wehrmann Rolf
Bayer MaterialScience AG
Buttner David
Connelly Bove Lodge & Hutz LLP
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