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. 21, 2017
Filed:
Nov. 17, 2015
Sabic Global Technologies B.v., Bergen Op Zoom, NL;
Ramon Groote, Oisterwijk, NL;
James Franklin Hoover, Evansville, IN (US);
Robert Dirk Van De Grampel, Tholen, NL;
Mark Adrianus Johannes Van Der Mee, Breda, NL;
Remco Wirtz, Bergen Op Zoom, NL;
Jian Yang, Shanghai, CN;
Junhua Zhang, Breda, NL;
SABIC GLOBAL TECHNOLOGIES B.V, Bergen Op Zoom, NL;
Abstract
A polycarbonate composition comprises: a first poly(carbonate-siloxane) copolymer comprising carbonate units and siloxane units, wherein less than 0.5 mol % of the siloxane units are directly coupled to another siloxane unit; the first poly(carbonate-siloxane) copolymer comprising siloxane units with an average block length of about 10 to about 100, and a siloxane content from 5 wt % to 8 wt %; a second poly(carbonate-siloxane) copolymer comprising carbonate units and siloxane units, wherein less than 0.5 mol % of the siloxane units are directly coupled to another siloxane unit; the second poly(carbonate-siloxane) copolymer comprising siloxane units with an average block length of 10 to 100, a siloxane content from 10 wt % to 30 wt %, and wherein the weight ratio of the first poly(carbonate-siloxane) copolymer to the second poly(carbonate-siloxane) copolymer is 2 to 20; and optionally a bisphenol polycarbonate; wherein the polycarbonate composition has a total siloxane content of 2.5 wt % to 10 wt % and a molded part of 1 mm thickness has a haze of less than 2% as measured by HazeGard (ASTM D1003-00).