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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.:

US 9771452 B1

PDFFull Text
Date of Patent:
Sep. 26, 2017

Filed:

Aug. 29, 2016

Plastic composition comprising a polycarbonate made from low sulfur bisphenol a, and articles made therefrom

Applicant:

Sabic Global Technologies B.v., Bergen op Zoom, NL;

Inventors:

Johannes de Brouwer, Oisterwijk, NL;

Christopher Luke Hein, Evansville, IN (US);

Thomas L. Evans, Mt. Vernon, IN (US);

Hatem Abdallah Belfadhel, Roosendaal, NL;

Marcel Vieveen, De Heen, NL;

Christian Wold, Halsteren, NL;

Eric Brander, Tholen, NL;

Assignee:

SABIC GLOBAL TECHNOLOGIES B.V., Bergen Op Zoom, NL;

Attorney:

Cantor Colburn LLP

Primary Examiner:

Joseph L Williams

Int. Cl.
CPC ...
C08G 64/30 (2006.01); C08K 3/00 (2006.01); C08K 9/06 (2006.01); C09K 11/02 (2006.01); H05B 33/12 (2006.01); H01L 33/56 (2010.01); C07C 29/78 (2006.01); C07C 37/20 (2006.01); G02B 1/04 (2006.01); C07C 37/84 (2006.01); C07C 37/86 (2006.01); F21V 29/70 (2015.01); C08G 64/04 (2006.01); C09K 11/57 (2006.01); C09K 11/77 (2006.01); F21V 3/04 (2006.01); F21V 9/16 (2006.01); H01L 33/50 (2010.01); F21Y 115/10 (2016.01);
U.S. Cl.
CPC ...
C08G 64/307 (2013.01); C07C 29/78 (2013.01); C07C 37/20 (2013.01); C07C 37/84 (2013.01); C07C 37/86 (2013.01); C08G 64/045 (2013.01); C08K 3/0033 (2013.01); C08K 9/06 (2013.01); C09K 11/02 (2013.01); C09K 11/574 (2013.01); C09K 11/77 (2013.01); C09K 11/7721 (2013.01); C09K 11/7734 (2013.01); F21V 3/0436 (2013.01); F21V 9/16 (2013.01); F21V 29/70 (2015.01); G02B 1/04 (2013.01); H01L 33/502 (2013.01); H01L 33/56 (2013.01); H05B 33/12 (2013.01); C08K 2201/001 (2013.01); F21Y 2115/10 (2016.08); H01L 33/501 (2013.01);
Abstract

In one embodiment, a light emitting device includes a lighting element located in a housing, wherein the housing is formed from a plastic composition including, for example, a polycarbonate formed from reacting, in the presence of a transesterification catalyst, a diaryl carbonate ester and a bisphenol A, wherein the bisphenol A has a sulfur concentration of 1 ppm to 15 ppm, based upon a weight of the bisphenol A; and a conversion material wherein the conversion material includes an inorganic material that converts radiation of a certain wavelength and re-emits of a different wavelength; wherein after the conversion material has been exposed to an excitation source, the conversion material has a luminescence lifetime of less than 10seconds when the excitation source is removed.

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