Polycarbonate resin composition
View Patent ↗A polycarbonate resin composition (X), comprises: (A) a polycarbonate resin containing (a) a structural unit derived from a dihydroxy compound having a moiety represented by the following formula (1) in a part of a structure; and (B) an aromatic polycarbonate resin, wherein a reduced viscosity of the aromatic polycarbonate resin (B) is 0.55 dl/g or less, a proportion of the aromatic polycarbonate resin (B) in the polycarbonate resin composition (X) is 30 wt % or more, and a total light transmittance of the polycarbonate resin composition (X) is 90% or less: CH 2 —O (1).
1. A polycarbonate resin composition (X), comprising:
(A) a polycarbonate resin containing (a) a structural unit derived from a dihydroxy compound having a moiety represented by the following formula (1) in a part of a structure; and
(B) an aromatic polycarbonate resin,
wherein a reduced viscosity of the aromatic polycarbonate resin (B) is 0.55 dl/g or less,
a proportion of the aromatic polycarbonate resin (B) in the polycarbonate resin composition (X) is 30 wt % or more, and
a total light transmittance of the polycarbonate resin composition (X) is 90% or less:
CH 2 —O (1)
provided that a case where the moiety represented by formula (1) is a part of —CH 2 —O—H is excluded.
2. The polycarbonate resin composition according to claim 1 ,
wherein the dihydroxy compound having a moiety represented by formula (1) in a part of a structure is a dihydroxy compound having a plurality of moieties represented by formula (1).
3. The polycarbonate resin composition according to claim 1 ,
wherein the dihydroxy compound having a moiety represented by formula (1) in a part of a structure is a dihydroxy compound having a cyclic structure.
4. The polycarbonate resin composition according to claim 1 ,
wherein the dihydroxy compound having a moiety represented by formula (1) in a part of a structure is a dihydroxy compound represented by the following formula (2):
5. The polycarbonate resin composition according to claim 4 ,
wherein the polycarbonate resin (A) contains a structural unit derived from the dihydroxy compound represented by formula (2) in an amount of 20 mol % to less than 90 mol %.
6. The polycarbonate resin composition according to claim 1 ,
wherein the polycarbonate resin (A) contains at least either one of a structural unit derived from a dihydroxy compound of an aliphatic hydrocarbon and a structural unit derived from a dihydroxy compound of an alicyclic hydrocarbon in an amount of 10 mol % to less than 80 mol %.
7. The polycarbonate resin composition according to claim 1 ,
wherein the aromatic polycarbonate resin (B) contains a structural unit represented by the following formula (7) in an amount of more than 70 mol % based on all structural units derived from dihydroxy compounds:
—[—O—Ar 1 —X—Ar 2 —]—OC(═O)— (7)
wherein in formula (7), each of Ar 1 and Ar 2 independently represents an arylene group which may have a substituent; and X represents a single bond or a divalent group.
8. A polycarbonate resin molded article, which is obtained by molding the polycarbonate resin composition according to claim 1 .