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:
Dec. 10, 2002
Filed:
Jul. 10, 2000
Gary Charles Davis, Albany, NY (US);
Marc Brian Wisnudel, Clifton Park, NY (US);
Irene Dris, Clifton Park, NY (US);
General Electric Company, Niskayuna, NY (US);
Abstract
The invention relates to substantially single phase silicone copolycarbonates suitable for use in optical articles such as digital versatile disks. The silicone copolycarbonates contain residues of silicone containing and nonsilicone containing bisphenols and have properties particularly suited for use in high density optical data storage media. The invention further relates to the preparation and properties of substantially single phase silicone copolycarbonates having either a blocky or a random structure. The structure of the compositions of the invention is determined by the method of preparation used and may be used to control physical properties.