POLYCARBONATE RESIN COMPOSITION AND MOLDED PRODUCT THEREOF

WIPO Patent Application WO/2016/203917

A1

A polycarbonate resin composition that includes 0.001–1 parts by mass of a flame retardant (C) per 100 parts by mass of a polycarbonate resin comprising a polycarbonate-polyorganosiloxane copolymer (E-1). The polycarbonate-polyorganosiloxane copolymer (E-1) has a polycarbonate block (A) comprising the repeating unit represented by general formula (I) and a polyorganosiloxane block (B) comprising the repeating unit represented by general formula (II). The differential molecular weight distribution curve of the polyorganosiloxane block (B), which is obtained from measurement by gel permeation chromatography using polystyrene as a conversion standard and in which the horizontal axis is the logarithmic value log(M) of the molecular weight M and the vertical axis is the value dw/dlog(M) obtained by differentiating the concentration fraction w by the logarithmic value log(M) of the molecular weight, satisfies the following: (1) the maximum value of dw/dlog(M) is reached in the range of 3.4≤log(M)≤4.0; and (2) in the differential molecular weight distribution curve, the value obtained by integrating the values of dw/dlog(M) in the range of 4.00≤log(M)≤4.50 is 6–40% of the value obtained by integrating the values of dw/dlog(M) across the entire range of log(M).

YAMADA AKI (JP)
ISHIKAWA YASUHIRO (JP)

PCT/JP2016/065349

December 22, 2016

May 24, 2016

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IDEMITSU KOSAN CO (JP)

C08L69/00; C08G64/18; C08K5/00

WO2013051557A1	2013-04-11
WO2015087595A1	2015-06-18

JP2012236926A	2012-12-06
JP2014172938A	2014-09-22
JP2006523243A	2006-10-12
JP2013523938A	2013-06-17
JP2015193771A	2015-11-05

See also references of EP 3312241A4

OHTANI, Tamotsu (JP)
Tamotsu Otani (JP)

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