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    • 2. 发明申请
    • POLYCARBONATE RESIN COMPOSITION AND MOLDED PRODUCT THEREOF
    • US20180171108A1
    • 2018-06-21
    • US15736041
    • 2016-05-24
    • IDEMITSU KOSAN CO., LTD.
    • Aki YamadaYasuhiro Ishikawa
    • C08K5/42C08K5/00
    • C08K5/42C08G64/18C08K5/00C08K5/0066C08L69/00
    • Provided is a polycarbonate-based resin composition, including 0.001 part by mass to 1 part by mass of a flame retardant (C) with respect to 100 parts by mass of a polycarbonate-based resin containing a polycarbonate-polyorganosiloxane copolymer (E-1), in which: the polycarbonate-polyorganosiloxane copolymer (E-1) has a polycarbonate block (A) formed of a repeating unit represented by the following general formula (I) and a polyorganosiloxane block (B) containing a repeating unit represented by the following general formula (II); and in a differential molecular weight distribution curve obtained from measurement of the polyorganosiloxane block (B) by gel permeation chromatography using the polystyrene calibration curve, the curve having the axis of abscissa indicating a logarithmic value log(M) of a molecular weight M and the axis of ordinate indicating dw/d log(M) obtained by differentiating a concentration fraction w with respect to the logarithmic value log(M) of the molecular weight, (1) a dw/d log(M) value becomes maximum in the range of 3.4≤log(M)≤4.0, and (2) a ratio of a value obtained by integrating the dw/d log(M) value over the range of 4.00≤log(M)≤4.50 to a value obtained by integrating the dw/d log(M) value over the entire range of the log(M) in the differential molecular weight distribution curve is 6 to 40%.