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:
Aug. 16, 2011
Filed:
May. 07, 2007
Johannes Martinus Dina Goossens, Bergen Op Zoom, NL;
Douglas George Hamilton, Dalton, MA (US);
Theodorus Lambertus Hoeks, Bergen Op Zoom, NL;
Johannes Martinus Dina Goossens, Bergen Op Zoom, NL;
Douglas George Hamilton, Dalton, MA (US);
Theodorus Lambertus Hoeks, Bergen Op Zoom, NL;
Abstract
Disclosed herein is a method of preparing a polycarbonate composition comprising melt blending a first polycarbonate prepared by interfacial polymerization and having hydroxy end groups that are capped with endcapping groups, with a second polycarbonate prepared by melt polymerization and having hydroxy end groups that are capped with endcapping groups, wherein the second polycarbonate has a lower mole percent of endcapping groups than that of the first polycarbonate; wherein an article having a thickness of 3.2 mm and molded from the polycarbonate composition has a haze of less than 3 according to ASTM D1003-00; and wherein a flat article molded from the polycarbonate composition has a surface charge of −2 to +2 kV. A polycarbonate composition and complex article prepared according to the method are also disclosed.