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:
Apr. 26, 2022
Filed:
Jan. 16, 2018
Applicant:
Sabic Global Technologies B.v., Bergen op Zoom, NL;
Inventors:
Aaron David Bojarski, Cartagena, ES;
Jorge A. Garcia Agudo, Cartagena, ES;
Assignee:
SABIC GLOBAL TECHNOLOGIES B.V., Bergen op Zoom, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 64/06 (2006.01); C08G 64/30 (2006.01); C08J 5/18 (2006.01); C08G 101/00 (2006.01);
U.S. Cl.
CPC ...
C08G 64/307 (2013.01); C08G 64/06 (2013.01); C08J 5/18 (2013.01); C08G 2101/00 (2013.01); C08G 2150/00 (2013.01); C08J 2369/00 (2013.01);
Abstract
A method of preparing a polycarbonate composition, including: melt polymerizing in a polymerization unit a dihydroxy compound with a diaryl carbonate and removing a stream of color inducing species containing an isopropenyl phenyl-containing group from the polymerization unit, to form a polycarbonate composition, wherein the polycarbonate has a color inducing species containing an isopropenyl phenyl-containing group level below 170 ppm is provided.