JPS55115407A - Thermoplastic resin particle and its manufacture - Google Patents
Thermoplastic resin particle and its manufactureInfo
- Publication number
- JPS55115407A JPS55115407A JP2093379A JP2093379A JPS55115407A JP S55115407 A JPS55115407 A JP S55115407A JP 2093379 A JP2093379 A JP 2093379A JP 2093379 A JP2093379 A JP 2093379A JP S55115407 A JPS55115407 A JP S55115407A
- Authority
- JP
- Japan
- Prior art keywords
- maleic anhydride
- thermoplastic resin
- polymerization
- styrene
- resin particle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Polymerisation Methods In General (AREA)
- Graft Or Block Polymers (AREA)
Abstract
PURPOSE: To obtain a thermoplastic resin particle having excellent heat resistance and good sheet moldability by having a vinyl aromatic monomer absorbed in a styrene-maleic anhydride copolymer particles suspended in an aqueous medium for polymerization.
CONSTITUTION: The 13W50pts.wt. of a styrene-maleic anhydride copolymer particles having 15W30wt% maleic anhydride and an average polymerization degree of 500 or more is suspended in an aqueous medium, and then 87W50pts.wt. of a vinyl aromatic monomer is added to the suspension so as to have the monomer absorbed in the aforesaid resin particles. Then, the suspension is put into polymerization in the presence of a catalyst to obtain a thermoplastic resin particle. During or after the polymerization, a foaming agent is added to obtain an expansible thermoplastic resin. If the amount of the maleic anhydride in the copolymer to be applied is 15wt% or less, the improvement of thermal properties can not be expected, whereas if it exceeds 30wt%, the intrusion of the vinyl aromatic monomer into the styrene- maleic anhydride copolymer becomes difficult.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2093379A JPS5915131B2 (en) | 1979-02-24 | 1979-02-24 | Method for producing thermoplastic resin particles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2093379A JPS5915131B2 (en) | 1979-02-24 | 1979-02-24 | Method for producing thermoplastic resin particles |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18406183A Division JPS5984934A (en) | 1983-09-30 | 1983-09-30 | Thermoplastic resin particle and production thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55115407A true JPS55115407A (en) | 1980-09-05 |
JPS5915131B2 JPS5915131B2 (en) | 1984-04-07 |
Family
ID=12041005
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2093379A Expired JPS5915131B2 (en) | 1979-02-24 | 1979-02-24 | Method for producing thermoplastic resin particles |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5915131B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5920332U (en) * | 1982-07-23 | 1984-02-07 | 京セラ株式会社 | electronic equipment |
-
1979
- 1979-02-24 JP JP2093379A patent/JPS5915131B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5915131B2 (en) | 1984-04-07 |
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