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US Patent 7569629 Flame retardant polycarbonate resin composition

Patent 7569629 was granted and assigned to Cheil Industries on August, 2009 by the United States Patent and Trademark Office.

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Current Assignee
Cheil Industries
Cheil Industries
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent Number
7569629
Date of Patent
August 4, 2009
Patent Application Number
11769136
Date Filed
June 27, 2007
Patent Primary Examiner
‌
Peter Szekely
Patent abstract

Flame retardant polycarbonate resin composition are disclosed, which can include (A) about 45 to about 95 parts by weight of a thermoplastic polycarbonate resin; (B) about 1 to about 50 parts by weight of a rubber modified vinyl-grafted copolymer; (C) about 0 to about 50 parts by weight of a vinyl copolymer; (D) about 1 to about 30 parts by weight of an organophosphorus compound consisting of (d1) about 1 to about 75% by weight of a phosphonate compound having a specific structure; and (d2) about 25 to about 99% by weight of an oligomeric phosphate ester compound per 100 parts by weight of the sum of (A), (B) and (C); and (E) about 0.05 to about 5 parts by weight of a fluorinated polyolefin resin per 100 parts by weight of the sum of (A), (B) and (C).

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