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. 14, 2017
Filed:
Aug. 28, 2014
Sabic Global Technologies B.v., Bergen Op Zoom, NL;
James Alan Mahood, Evansville, IN (US);
Matthew Frank Niemeyer, North Chatham, NY (US);
Anne E. Bolvari, West Chester, PA (US);
Mark A. Sanner, Evansville, IN (US);
Neal Pfeiffenberger, Conshohocken, PA (US);
Abstract
A film comprises a phthalimidine copolycarbonate comprising first repeating units and second repeating units different from the first repeating units, wherein the first repeating units are phthalimidine carbonate units andthe second repeating units comprise bisphenol carbonate units that are not the same as the first repeating phthalimidine carbonate units; and a second polycarbonate that is not a phthalimidine copolycarbonate; wherein the film has: a glass transmission temperature of greater than 170° C.; a dielectric constant at 1 kHz, 23° C. and 50% relative humidity of at least 3.0; a dissipation factor at 1 kHz, 23° C. and 50% relative humidity of 1% or less; and a breakdown strength of at least 800 Volt/micrometer.