Polycarbonate resin composition and molded article thereof
View Patent ↗The present invention relates to 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) [provided that a case where the moiety represented by formula (1) is a moiety constituting —CH 2 —O—H is excluded]; and an elastomer composed of a core●shell structure, wherein a core layer of the elastomer is composed of a butadiene-styrene copolymer, and a polycarbonate resin molded article obtained by molding the polycarbonate resin composition: CH 2 —O (1).
1. A polycarbonate resin composition, comprising:
a polycarbonate resin having a glass transition temperature of less than 145° C. and 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 composed of a butadiene-styrene copolymer:
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.
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 less than 60%.
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 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 polycarbonate resin contains a structural unit derived from an aliphatic dihydroxy compound.
8. The polycarbonate resin composition according to claim 7 ,
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.
9. 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.
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 cyclohexanedimethanols and tricyclodecanedimethanols.
11. A polycarbonate resin molded article, which is obtained by molding the polycarbonate resin composition according to claim 1 .
12. The polycarbonate resin molded article according to claim 11 , which is obtained by injection-molding the polycarbonate resin composition.
13. The polycarbonate resin composition according to claim 1 ,
wherein the glass transition temperature is at least 75° C.
14. The polycarbonate resin composition according to claim 1 ,
wherein the glass transition temperature is from 80 to 140° C.
15. The polycarbonate resin composition according to claim 1 ,
wherein the glass transition temperature is from 85 to 135° C.