JPS5767606A - Preparation of grain of styrenic polymer - Google Patents
Preparation of grain of styrenic polymerInfo
- Publication number
- JPS5767606A JPS5767606A JP14483880A JP14483880A JPS5767606A JP S5767606 A JPS5767606 A JP S5767606A JP 14483880 A JP14483880 A JP 14483880A JP 14483880 A JP14483880 A JP 14483880A JP S5767606 A JPS5767606 A JP S5767606A
- Authority
- JP
- Japan
- Prior art keywords
- polymerization
- polymer
- styrene
- bulk
- monomer
- 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
- Polymerisation Methods In General (AREA)
Abstract
PURPOSE: To obtain the titled polymer useful as expandable polymer beads, etc., having a narrow particle size dstribution, by subjecting a monomer, e.g., styrene, etc. to bulk polymerization to a specific viscosity, feeding the polymer to water, followed by adding a specified amount of a monomer having no polymerization initator, and carrying out suspension polymerization.
CONSTITUTION: First, polymerizable ethylenic unsaturated monomers consisting essentially of styrene is subjected to bulk polymerization in the presence of a polymerization initiator until a viscosity of the reaction system at 20°C becomes 100W 10,000 centipoise to give a bulky styrene (co)polymer, which is fed to water containing a suspension stabilizer. 200W900pts.wt. polymerizable ethylenic unsaturated monomers consisting essentially of styrene containing no polymerization initiator based on 100pts.wt. monomer subjected to bulk polymerization is added to the reaction system and subjected to suspension polymerization. The polymerizationinitiator for suspension polymerization is added to the reaction system before the bulk polymer is fed to the suspension polymerization system.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14483880A JPS5767606A (en) | 1980-10-16 | 1980-10-16 | Preparation of grain of styrenic polymer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14483880A JPS5767606A (en) | 1980-10-16 | 1980-10-16 | Preparation of grain of styrenic polymer |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5767606A true JPS5767606A (en) | 1982-04-24 |
JPH0122842B2 JPH0122842B2 (en) | 1989-04-28 |
Family
ID=15371604
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14483880A Granted JPS5767606A (en) | 1980-10-16 | 1980-10-16 | Preparation of grain of styrenic polymer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5767606A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61266418A (en) * | 1985-05-20 | 1986-11-26 | Sekisui Plastics Co Ltd | Production of styrene copolymer |
KR100280217B1 (en) * | 1998-06-25 | 2001-02-01 | 황규억 | Method for producing expandable styrene polymer resin beads |
-
1980
- 1980-10-16 JP JP14483880A patent/JPS5767606A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61266418A (en) * | 1985-05-20 | 1986-11-26 | Sekisui Plastics Co Ltd | Production of styrene copolymer |
JPH0380805B2 (en) * | 1985-05-20 | 1991-12-26 | Sekisui Plastics | |
KR100280217B1 (en) * | 1998-06-25 | 2001-02-01 | 황규억 | Method for producing expandable styrene polymer resin beads |
Also Published As
Publication number | Publication date |
---|---|
JPH0122842B2 (en) | 1989-04-28 |
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