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:
Jul. 20, 2010
Filed:
Jan. 17, 2007
Hans-peter Brack, Herrliberg, CH;
Bernd Jansen, Bergen Op Zoom, NL;
Jan Henk Kamps, Bergen op Zoom, NL;
Edward Kung, Bergen op Zoom, NL;
Jan Pleun Lens, Breda, NL;
Hans Looij, Bergen op Zoom, NL;
Han Vermeulen, Hoeven, NL;
Hans-Peter Brack, Herrliberg, CH;
Bernd Jansen, Bergen Op Zoom, NL;
Jan Henk Kamps, Bergen op Zoom, NL;
Edward Kung, Bergen op Zoom, NL;
Jan Pleun Lens, Breda, NL;
Hans Looij, Bergen op Zoom, NL;
Han Vermeulen, Hoeven, NL;
Sabic Innovative Plastics IP B.V., Bergen op Zoom, NL;
Abstract
A method of increasing the branching and polydispersity of a polycarbonate includes the steps of: (a) including in the polycarbonate at least one species of an alkyl substituted monomer, and (b) treating the polycarbonate at an elevated temperature and for a sufficient time to increase the branching and polydispersity relative to an otherwise equivalent polycarbonate without alkyl substituents.