Polycarbonate Compositions with Thin Wall Flame Retardant Properties and Shaped Article Therefore

    公开(公告)号:US20230265283A1

    公开(公告)日:2023-08-24

    申请号:US18012487

    申请日:2021-06-24

    CPC classification number: C08L69/00 C08K5/5399 C08K7/14 C08K5/5419

    Abstract: Disclosed herein are compositions comprising from about 26 wt. % to about 89 wt. % of a polycarbonate polymer component, from about 0.5 wt. % to about 20 wt. % of phosphazene-based flame retardant, from about 0.01 wt. % to about 4 wt. % of a siloxane component, and from about 10 wt. % to about 50 wt. % of a filler component, wherein all weight percent are based on the total weight of the composition. The composition may exhibit a notched Izod impact strength of at least 150 J/m when tested in accordance with ASTM D256 at 23° C. and 5 ft-lb on a 3.2 mm bar specimen, a tensile elongation less than or equal to 2% when tested in accordance with D638 at 5 mm/min at break on a Type I bar specimen, and the composition achieves a p(FTP) of at least 0.85 for normal V0 of at 1.2 mm according to UL 94 (2019).

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