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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 10563043 B1

PDFFull Text
Date of Patent:
Feb. 18, 2020

Filed:

Mar. 14, 2017

Flame retardant polycarbonates having high total luminous transmittance

Applicant:

Trinseo Europe Gmbh, Horgen, CH;

Inventors:

Claude Van Nuffel, Oostakker, BE;

Hung Chang Wu, Taoyuan, TW;

Assignee:

TRINSEO EUROPE GMBH, Horgen, CH;

Attorney:

The Dobrusin Law Firm, P.C.

Primary Examiner:

Robert C Boyle

Int. Cl.
CPC ...
C08K 5/42 (2006.01); C08L 69/00 (2006.01); C08L 83/04 (2006.01); C08K 5/54 (2006.01); C08K 7/16 (2006.01); C09K 21/08 (2006.01);
U.S. Cl.
CPC ...
C08K 5/42 (2013.01); C08K 5/54 (2013.01); C08K 7/16 (2013.01); C08L 69/00 (2013.01); C08L 83/04 (2013.01); C09K 21/08 (2013.01); C08K 2201/003 (2013.01);
Abstract

Polycarbonate compositions having good flame retardancy and high light transmittance are achieved using the combination of a polycarbonate, a charring salt flame retardant, and a low molecular weight silicone compound. Light diffusing compositions are achieved using a particulate light diffusing agent. The compositions preferably meet or exceed one or more (and most preferably all) of the following flame retardancy standards: (i) UL-94 V-0 (t=1 mm); (ii) UL-94 5VA (t=2.5 mm); (iii) UL-94 5VB (t=2.5 mm).

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Van Nuffel, Claude. (2020). Flame retardant polycarbonates having high total luminous transmittance (U.S. Patent No. 10563043). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10563043

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