Polycarbonate resin composition and molded article thereof

1. A polycarbonate resin composition, comprising:

a polycarbonate resin containing a structural unit derived from a dihydroxy compound having a moiety represented by the following formula (1); and

an elastomer composed of a core•shell structure,

wherein a core layer of the elastomer is at least one member selected from the group consisting of an alkyl (meth)acrylate and a (meth)acrylic acid:

CH 2 —O   (1)

provided that a case where the moiety represented by formula (1) is a moiety constituting —CH 2 —O—H is excluded and

a glass transition temperature of the polycarbonate resin is less than 145° C.

2. The polycarbonate resin composition according to claim 1 ,

wherein when the polycarbonate resin composition is formed into a molded body of 3 mm in thickness, a total light transmittance is 55% or less.

3. The polycarbonate resin composition according to claim 1 , comprising the elastomer in an amount of 0.05 to 50 parts by weight per 100 parts by weight of the polycarbonate resin.

4. The polycarbonate resin composition according to claim 1 ,

wherein the polycarbonate resin contains a structural unit derived from a dihydroxy compound having a cyclic ether structure.

5. The polycarbonate resin composition according to claim 4 ,

wherein the polycarbonate resin contains a structural unit derived from a dihydroxy compound represented by the following formula (2):

6. The polycarbonate resin composition according to claim 1 ,

wherein a shell layer of the elastomer is composed of an alkyl (meth)acrylate.

7. The polycarbonate resin composition according to claim 1 ,

wherein the elastomer is at least one core•shell-type graft copolymer selected from the group consisting of an acryl alkylate-methyl methacrylate copolymer, an alkyl (meth)acrylate-alkyl (meth)acrylate copolymer, an alkyl (meth)acrylate-acrylonitrile-butadiene-styrene copolymer, an alkyl (meth)acrylate-acryl rubber copolymer, an alkyl (meth)acrylate-acryl rubber-styrene copolymer, an alkyl (meth)acrylate-acryl•butadiene rubber copolymer and an alkyl (meth)acrylate-acryl•butadiene rubber-styrene copolymer.

8. The polycarbonate resin composition according to claim 1 ,

wherein the polycarbonate resin contains a structural unit derived from an aliphatic dihydroxy compound.

9. The polycarbonate resin composition according to claim 8 ,

wherein the polycarbonate resin contains the structural unit derived from an aliphatic dihydroxy compound in an amount of 20 mol % or more based on structural units derived from all dihydroxy compounds.

10. The polycarbonate resin composition according to claim 1 ,

wherein the polycarbonate resin contains a structural unit derived from at least one dihydroxy compound selected from the group consisting of a dihydroxy compound having a 5-membered ring structure and a dihydroxy compound having a 6-membered ring structure.

11. The polycarbonate resin composition according to claim 1 ,

wherein the polycarbonate resin contains a structural unit derived from at least one dihydroxy compound selected from the group consisting of cyclohexanedimethanols and tricyclodecanedimethanols.

12. A polycarbonate resin molded article, which is obtained by molding the polycarbonate resin composition according to claim 1 .

13. The polycarbonate resin molded article according to claim 12 , which is obtained by injection-molding the polycarbonate resin composition.