JPS54101890A - Production of granulated styrene polymer - Google Patents
Production of granulated styrene polymerInfo
- Publication number
- JPS54101890A JPS54101890A JP1065478A JP1065478A JPS54101890A JP S54101890 A JPS54101890 A JP S54101890A JP 1065478 A JP1065478 A JP 1065478A JP 1065478 A JP1065478 A JP 1065478A JP S54101890 A JPS54101890 A JP S54101890A
- Authority
- JP
- Japan
- Prior art keywords
- added
- polymerization
- surfactant
- nonionic
- monomers
- 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: A peroxodisulfate salt is added while the polymerization of styrene monomers is carried out in an aqeuous medium in the presence of an inorganic salt hard soluble in water and a surfactant, thereby preventing the formation of fine particles to produce styrene polymers with narrow particle size distribution.
CONSTITUTION: In the suspension polymerization of styrene monomers in an apueous midium, 0.02 W2 wt%, based on the aqueous medium, of an inorganic salt hard soluble in water, 0.00001 W0.05 wt%, based on the total suspension, of a nonionic or anionic surfactant are added to the polymerization system. When the conversion of monomers attains 30 W80%, 0,00001 W 0.01wt%, based on the total suspension, of a peroxodisulfate salt is added to the system. The surfactant used is, e.g., a polyoxyethylene monofatty acid ester as nonionic or sodium dodecylbenzenesulfonate as anionic surfactant.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1065478A JPS54101890A (en) | 1978-01-27 | 1978-01-27 | Production of granulated styrene polymer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1065478A JPS54101890A (en) | 1978-01-27 | 1978-01-27 | Production of granulated styrene polymer |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54101890A true JPS54101890A (en) | 1979-08-10 |
JPS5550042B2 JPS5550042B2 (en) | 1980-12-16 |
Family
ID=11756201
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1065478A Granted JPS54101890A (en) | 1978-01-27 | 1978-01-27 | Production of granulated styrene polymer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54101890A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11199604A (en) * | 1998-01-16 | 1999-07-27 | Sekisui Plastics Co Ltd | Production of spherical fine particle of vinyl-based polymer |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4605116A (en) * | 1982-09-02 | 1986-08-12 | Miller Formless Co., Inc. | Conveyor system used with apparatus for unloading comminuted materials |
-
1978
- 1978-01-27 JP JP1065478A patent/JPS54101890A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11199604A (en) * | 1998-01-16 | 1999-07-27 | Sekisui Plastics Co Ltd | Production of spherical fine particle of vinyl-based polymer |
Also Published As
Publication number | Publication date |
---|---|
JPS5550042B2 (en) | 1980-12-16 |
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