Thermoplastic resin composition

• US 4,351,920 A
• Filed: 05/01/1981
• Issued: 09/28/1982
• Est. Priority Date: 12/07/1979
• Status: Expired due to Fees

• Current Assignee: Dainippon Ink and Chemicals Incorporated
• Original Assignee: Dainippon Ink & Chemicals Incorporated
• Inventors: Sato, Hiroyuki, Ariga, Nagao, Shimazu, Kyotaro, Takenaka, Hidenori
• Primary Examiner(s): Ziegler, J.
• Application Number:
  US06/259,434
• Time in Patent Office: 515 Days
• Field of Search: 525/67, 525/68, 525/69, 525/468
• US Class Current: 525/67
• CPC Class Codes: C08L 51/00 Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds for ABS polymers C08L55/02; Compositions of derivatives of such polymers
• CPC Class Codes: C08L 69/00 Compositions of polycarbonates; Compositions of derivatives of polycarbonates

Abstract

A thermoplastic resin composition comprising (a) 5 to 40% by weight of a rubber-modified styrene/maleic anhydride copolymer resin and (b) 95 to 60% by weight of a polycarbonate resin as main components.

Claims

1. A thermoplastic resin composition comprising (a) 5 to 40% by weight of a rubber-modified styrene/maleic anhydride copolymer resin and (b) 95 to 60% by weight of a polycarbonate resin as main components.

2. The composition of claim 1 wherein said rubber-modified styrene/maleic anhydride copolymer resin (a) is prepared by reacting styrene monomer with maleic anhydride in the presence of a rubber component.

3. The composition of claim 1 wherein said polycarbonate resin (b) is obtained by reacting an aromatic dihydroxyl compound with phosgene or a diaryl carbonate.

4. The composition of claim 3 wherein said aromatic dihydroxy compound is a bis(hydroxyaryl)alkane.

5. The composition of claim 3 wherein said diaryl carbonate is a compound selected from the group consisting of diphenylene carbonate, di(bisphenylene)carbonate, dinaphthylene carbonate and dianthrylene carbonate.

6. The composition of claim 3 wherein said aromatic dihydroxy compound is 2,2-bis-(4-hydroxyphenyl)propane.

7. The composition of claim 3 wherein said aromatic dihydroxy compound is bis-(2-hydroxyphenyl)methane.

8. The composition of claim 3 wherein said aromatic dihydroxy compound is 1,1-bis(4-hydroxyphenyl)ethane.

9. The composition of claim 3 wherein said aromatic dihydroxy compound is 2,2-bis(4-hydroxy-3,5-dibromophenyl)-propane.

10. The composition of claim 3 wherein said aromatic dihydroxy compound is 2,2-bis(4-hydroxy-3,5-dichlorophenyl)-propane.

11. The composition of claim 1 wherein the weight ratio of the rubber-modified styrene/maleic anhydride copolymer resin (a) to the polycarbonate resin (b) is from

12. The composition of claim 1 wherein the weight ratio of the rubber-modified styrene/maleic anhydride copolymer resin (a) to the polycarbonate resin (b) is from 15:

85 to 25;

75.