The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 08, 2000
Filed:
Jan. 05, 1999
Kenichi Ishiwa, Oyama, JP;
Henricus H van Hout, Halsteren, NL;
Ali Dhinojwala, Akron, OH (US);
Niles R Rosenquist, Vanderburgh, IN (US);
Paul D Sybert, Evansville, IN (US);
Steven F Hubbard, Mt. Vernon, IN (US);
Paul C Raymond, III, Tokyo, JP;
Joseph A King, Jr, Midlothian, VA (US);
Gary C Davis, Albany, NY (US);
General Electric Company, Schenectady, NY (US);
Abstract
There is provided herein an optical storage media which has low VBR. In a preferred embodiment, there is provided an optical disk comprising a genus of copolycarbonates, including copolyestercarbonates, which have excellent physical and optical properties. Said copolycarbonates have proportions of structural units which fall within a specific composition range, and said range defines certain materials, a large percentage of which can be molded into optical disks having the desired optical properties, including low VBR.