JPS55112213A - Production of thermoplastic resin particle - Google Patents
Production of thermoplastic resin particleInfo
- Publication number
- JPS55112213A JPS55112213A JP1952879A JP1952879A JPS55112213A JP S55112213 A JPS55112213 A JP S55112213A JP 1952879 A JP1952879 A JP 1952879A JP 1952879 A JP1952879 A JP 1952879A JP S55112213 A JPS55112213 A JP S55112213A
- Authority
- JP
- Japan
- Prior art keywords
- maleic anhydride
- resin particles
- copolymer resin
- styrene
- polymerization degree
- 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
Abstract
PURPOSE: To produce resin particles having such a uniform and small particle size as to provide little jamming fluctuation, when fed to a molding machine hopper, by polymerizing a suspension obtained by suspending in an aqueous medium a solution of styrene/maleic anhydride copolymer resin in a vinyl aromatic monomer.
CONSTITUTION: A styrene/maleic anhydride copolymer resin (10W35pts.wt.) containing 15W30wt% of a maleic anhydride component and having an average polymerization degree of at least 500 is dissolved in 90W65pts.wt. of a vinyl aromatic monomer. The resulting solution, then, is suspended in an aqueous medium, and polymerized in the presence of a polymerization catalyst, yielding thermoplastic resin particles. The resin particles are made foamable by adding thereto a blowing agent during or after the polymerization reaction. When a styrene/maleic anhydride copolymer resin having an average polymerization degree of below 500 is used as the copolymer resin, the resin particles obtained can only give molded articles having low mechanical strength. The preferred upper limit of the polymerization degree is about 4000.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1952879A JPS5915128B2 (en) | 1979-02-21 | 1979-02-21 | Method for producing thermoplastic resin particles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1952879A JPS5915128B2 (en) | 1979-02-21 | 1979-02-21 | Method for producing thermoplastic resin particles |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18405783A Division JPS5984930A (en) | 1983-09-30 | 1983-09-30 | Production of thermoplastic resin particle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55112213A true JPS55112213A (en) | 1980-08-29 |
| JPS5915128B2 JPS5915128B2 (en) | 1984-04-07 |
Family
ID=12001831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1952879A Expired JPS5915128B2 (en) | 1979-02-21 | 1979-02-21 | Method for producing thermoplastic resin particles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5915128B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5779132U (en) * | 1980-10-28 | 1982-05-15 |
-
1979
- 1979-02-21 JP JP1952879A patent/JPS5915128B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5779132U (en) * | 1980-10-28 | 1982-05-15 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5915128B2 (en) | 1984-04-07 |
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