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:
Mar. 30, 2010
Filed:
Jul. 24, 2006
David A. Boyles, Rapid City, SD (US);
John T. Bendler, Annapolis, MD (US);
Tsvetanka Filipova, Rapid City, SD (US);
David A. Boyles, Rapid City, SD (US);
John T. Bendler, Annapolis, MD (US);
Tsvetanka Filipova, Rapid City, SD (US);
South Dakota School of Mines and Technology, Rapid City, SD (US);
Abstract
The present invention relates to a miscible transparent polymer blend, specifically, a polycarbonate blend which comprises homopolycarbonates and/or copolycarbonates. In particular, high aspect ratio monomers confer unique miscibility properties on polycarbonates. Miscible, transparent blends have been found to form from polycarbonate mixtures containing as components of the mixture (1) polycarbonates of bisphenol A monomers copolymerized with a variety of bisphenols, and (2) polycarbonates containing high aspect ratio monomers.