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. 02, 2010
Filed:
Feb. 23, 2007
Applicants:
Bong Jae Lee, Seoul, KR;
Kyoung Tae Kim, Seoul, KR;
Sung Sig Min, Seoul, KR;
Inventors:
Assignee:
Cheil Industries Inc., Gumi-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 283/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed herein is a flame retardant polycarbonate resin composition having high heat resistance and good impact resistance. The flame retardant polycarbonate composition is prepared by incorporating into a polycarbonate resin a silicon-based core-shell graft copolymer, in which a vinyl monomer is graft polymerized onto a rubber comprising about 20 to about 95% by weight of silicon, and optionally a phosphoric acid ester compound. The present invention can accordingly provide superior flame retardance while maintaining good impact resistance, high flowability and high heat resistance.