Copolycarbonate and composition containing the same

Patent metadata

Field	Value
Publication number	US-9718958-B2
Application number	US-201515026565-A
Country	US
Kind code	B2
Filing date	Dec 4, 2015
Priority date	Dec 4, 2014
Publication date	Aug 1, 2017
Grant date	Aug 1, 2017

Abstract

Disclosed is a copolycarbonate including aromatic polycarbonate-based repeating units represented by Chemical Formula 1 and Chemical Formula 2; and aromatic polycarbonate-based repeating units having siloxane bonds represented by Chemical Formula 3 and Chemical Formula 4:

copolycarbonate provides improved impact strength at low-temperature, improved YI (yellow index), and improved melt index simultaneously.

First claim

The invention claimed is:

1. A copolycarbonate comprising:
i) a repeating unit represented by the following Chemical Formula 1, ii) a repeating unit represented by the following Chemical Formula 2, iii) a repeating unit represented by the following Chemical Formula 3, and iv) a repeating unit represented by the following Chemical Formula 4,
wherein the copolycarbonate has a weight average molecular weight of 1,000 to 100,000:

in the Chemical Formula 1,
R 1 , R 2 , R 3 and R 4 are each independently hydrogen, C 1-10 alkyl, C 1-10 alkoxy, or halogen, and
Z 1 is C 1-10 alkylene unsubstituted or substituted with phenyl, C 3-15 cycloalkylene unsubstituted or substituted with C 1-10 alkyl, O, S, SO, SO 2 , or CO,

in the Chemical Formula 2,
R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , R 11 , and R 12 are each independently hydrogen, C 1-10 alkyl, C 1-10 alkoxy, or halogen, and
Z 2 and Z 3 are each independently C 1-10 alkylene unsubstituted or substituted with phenyl, C 3-15 cycloalkylene unsubstituted or substituted with C 1-10 alkyl, O, S, SO, SO 2 , or CO, and
A is C 1-15 alkylene,

in the Chemical Formula 3,
each of X 1 is independently C 1-10 alkylene,
each of R 13 is independently hydrogen; C 1-15 alkyl unsubstituted or substituted with oxiranyl, oxiranyl-substituted C 1-10 alkoxy, or C 6-20 aryl; halogen; C 1-10 alkoxy; allyl; C 1-10 haloalkyl; or C 6-20 aryl, and
n is an integer of 10 to 200,

in the Chemical Formula 4,
each of X 2 is independently C 1-10 alkylene,
each of Y 1 is independently hydrogen, C 1-6 alkyl, halogen, hydroxy, C 1-6 alkoxy, or C 6-20 aryl,
each of R 14 is independently hydrogen; C 1-15 alkyl unsubstituted or substituted with oxiranyl, oxiranyl-substituted C 1-10 alkoxy, or C 6-20 aryl; halogen; C 1-10 alkoxy; allyl; C 1-10 haloalkyl; or C 6-20 aryl, and
m is an integer of 10 to 200.

2. The copolycarbonate of claim 1 , wherein
the repeating unit represented by Chemical Formula 1 is derived from one or more aromatic diol compounds selected from the group consisting of bis(4-hydroxyphenyl)methane, bis(4-hydroxyphenyl)ether, bis(4-hydroxyphenyl)sulfone, bis(4-hydroxyphenyl)sulfoxide, bis(4-hydroxyphenyl)sulfide, bis(4-hydroxyphenyl)ketone, 1,1-bis(4-hydroxyphenyl)ethane, bisphenol A, 2,2-bis(4-hydroxyphenyl)butane, 1,1-bis(4-hydroxyphenyl)cyclohexane, 2,2-bis(4-hydroxy-3,5-dibromophenyl)propane, 2,2-bis(4-hydroxy-3,5-dichlorophenyl)propane, 2,2-bis(4-hydroxy-3-bromophenyl)propane, 2,2-bis(4-hydroxy-3-chlorophenyl)propane, 2,2-bis(4-hydroxy-3-methylphenyl)propane, 2,2-bis(4-hydroxy-3,5-dimethylphenyl)propane, 1,1-bis(4-hydroxyphenyl)-1-phenylethane and bis(4-hydroxyphenyl)diphenylmethane.

3. The copolycarbonate of claim 1 , wherein
the repeating unit represented by Chemical Formula 1 is represented by the following Chemical Formula 1-1:

4. The copolycarbonate of claim 1 , wherein
R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , R 11 and R 12 are each independently hydrogen, methyl, chloro, or bromo.

5. The copolycarbonate of claim 1 , wherein
Z 2 and Z 3 are each independently a linear or brached C 1-10 alkylene unsubstituted or substituted with phenyl, cyclohexane-1,1-diyl, O, S, SO, SO 2 , or CO.

6. The copolycarbonate of claim 1 , wherein
A is a linear C 1-10 alkylene.

7. The copolycarbonate of claim 1 , wherein
the repeating unit represented by Chemical Formula 2 is represented by the following Chemical Formula 2-1:

8. The copolycarbonate of claim 1 , wherein
the weight ratio of the repeating unit represented by Chemical Formula 1 and the repeating unit represented by Chemical Formula 2 is 1:0.001 to 1:0.3.

9. The copolycarbonate of claim 1 , wherein
the weight ratio between the weight of the repeating unit represented by Chemical Formula 1 and the total weight of one or more of the repeating unit represented by Chemical Formula 3 and the repeating unit represented by Chemical Formula 4 is 1:0.001 to 1:0.1.

10. The copolycarbonate of claim 1 , wherein
the repeating unit represented by Chemical Formula 3 is represented by the following Chemical Formula 3-2:

11. The copolycarbonate of claim 10 , wherein
R 13 is methyl.

12. The copolycarbonate of claim 1 , wherein
the repeating unit represented by Chemical Formula 4 is represented by the following Chemical Formula 4-2:

13. The copolycarbonate of claim 12 , wherein
R 14 is methyl.

14. The copolycarbonate of claim 1 , wherein
the copolycarbonate has a weight average molecular weight of 15,000 to 40,000 g/mol.

15. A polycarbonate composition comprising the copolycarbobnate of claim 1 , and a polycarbonate.

16. The polycarbonate composition of claim 15 , wherein
a polysiloxane structure is not introduced in a main chain of the polycarbonate.

17. The polycarbonate composition of claim 15 , wherein
the above polycarbonate comprises a repeating unit represented by the following Chemical Formula 5:

in the Chemical Formula 5,
R′ 1 , R′ 2 , R′ 3 and R′ 4 are each independently hydrogen, C 1-10 alkyl, C 1-10 alkoxy, or halogen, and
Z′ is C 1-10 alkylene unsubstituted or substituted with phenyl, C 3-15 cycloalkylene unsubstituted or substituted with C 1-10 alkyl, O, S, SO, SO 2 or CO.

Assignees

• Lg Chemical Ltd

Inventors

• Son Young Wook
• Hong Moo Ho
• Lee Ki Jae
• Park Jung Jun

Classifications

• C09K21/08

  containing halogen · CPC title

• C08K5/5317

  Phosphonic compounds, e.g. R—P(:O)(OR')2 · CPC title

• C08L69/00 Primary

  Compositions of polycarbonates; Compositions of derivatives of polycarbonates · CPC title

• C09K21/14

  Macromolecular materials · CPC title

• C08L51/04

  grafted on to rubbers · CPC title