发明名称 |
Polycarbonate resin composition and molded article |
摘要 |
Provided is a polycarbonate-based resin composition, including, with respect to 100 parts by mass of (A) a resin mixture formed of 30 to 100 mass % of a polycarbonate-polyorganosiloxane copolymer (A-1) having a structural unit represented by the general formula (I) and a structural unit represented by the general formula (II), and having an average number of repetitions n of an organosiloxane constituent unit in the general formula (II) of 50 to 500, and 0 to 70 mass % of an aromatic polycarbonate (A-2) except the copolymer (A-1), 1 to 5.5 parts by mass of (B) a polyorganosiloxane-acrylic composite rubber, the composition having a viscosity-average molecular weight of 17,000 to 23,000. Also provided is a molded article thereof.; |
申请公布号 |
US9617422(B2) |
申请公布日期 |
2017.04.11 |
申请号 |
US201314426877 |
申请日期 |
2013.09.13 |
申请人 |
IDEMITSU KOSAN CO., LTD. |
发明人 |
Aoki Yusuke |
分类号 |
C08L83/00;C08L83/04;C08K5/42;C08L69/00;C08L83/10;C08L51/08;C08G77/448 |
主分类号 |
C08L83/00 |
代理机构 |
Oblon, McClelland, Maier & Neustadt, L.L.P. |
代理人 |
Oblon, McClelland, Maier & Neustadt, L.L.P. |
主权项 |
1. A polycarbonate-based resin composition, comprising, with respect to 100 parts by mass of (A) a resin mixture formed of 30 to 100 mass % of a polycarbonate-polyorganosiloxane copolymer (A-1) having a structural unit represented by the general formula (I) and a structural unit represented by the general formula (II), and having an average number of repetitions n of an organosiloxane constituent unit in the general formula (II) of 50 to 500, and 0 to 70 mass % of an aromatic polycarbonate (A-2) except the copolymer (A-1), 1.5 to 4.5 parts by mass of (B) a polyorganosiloxane-acrylic composite rubber, the composition having a viscosity-average molecular weight of from 17000 to 23000: wherein R1 and R2 each independently represent an alkyl group or alkoxy group having 1 to 6 carbon atoms, X represents a single bond, an alkylene group having 1 to 8 carbon atoms, an alkylidene group having 2 to 8 carbon atoms, a cycloalkylene group having 5 to 15 carbon atoms, a cycloalkylidene group having 5 to 15 carbon atoms, —S—, —SO—, —SO2—, —O—, or —CO—, a and b each independently represent an integer of 0 to 4, R3 to R6 each independently represent a hydrogen atom, a halogen atom, an alkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, or an aryl group having 6 to 12 carbon atoms, Y represents an organic residue containing an aliphatic or aromatic moiety, and n represents an average number of repetitions. |
地址 |
Chiyoda-ku JP |