JPS57133105A - Suspension polymerization of vinyl chloride - Google Patents
Suspension polymerization of vinyl chlorideInfo
- Publication number
- JPS57133105A JPS57133105A JP1904181A JP1904181A JPS57133105A JP S57133105 A JPS57133105 A JP S57133105A JP 1904181 A JP1904181 A JP 1904181A JP 1904181 A JP1904181 A JP 1904181A JP S57133105 A JPS57133105 A JP S57133105A
- Authority
- JP
- Japan
- Prior art keywords
- charging
- monomer
- whole amount
- temperature
- polymerization
- 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)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
PURPOSE: To prepare the titled polymer in high productivity, shortening the charging time and heat-up time in the polymerization, by charging specific amounts of the monomer and water heated roughly at the polymeerization temperature, thereby attaining the desired polymerization temperature at the completion of the charging of both components in the polymerizer.
CONSTITUTION: In the suspension polymerization of vinyl chloride or a mixture of ethylenic unsaturated monomers composed mainly of vinyl chloride, the temperatures of the monomer and water are adjusted so as to give a mixture of the monomer and water having a temperature of (the polymerization temperature ± 10°C), ≥50% of the total charging amounts of both components are charged in the polymerizer at the same time so as to attain the desired polymerization temperature at the completion of the charging, and the mixture is polymerized without delay. It is preferable to charge the polymerizer with the whole amount of water dissolved with the whole amount of a suspending agent (e.g. partially saponified polyvinyl alcohol) and the whole amount of the monomer dissolved with the whole amount of a polymerization initiator (e.g. dibutoxyethyl peroxy dicarbonate) at the same time.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1904181A JPS6026488B2 (en) | 1981-02-13 | 1981-02-13 | Suspension polymerization method of vinyl chloride |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1904181A JPS6026488B2 (en) | 1981-02-13 | 1981-02-13 | Suspension polymerization method of vinyl chloride |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57133105A true JPS57133105A (en) | 1982-08-17 |
JPS6026488B2 JPS6026488B2 (en) | 1985-06-24 |
Family
ID=11988335
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1904181A Expired JPS6026488B2 (en) | 1981-02-13 | 1981-02-13 | Suspension polymerization method of vinyl chloride |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6026488B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60158207A (en) * | 1984-01-27 | 1985-08-19 | Toyo Soda Mfg Co Ltd | Suspension polymerization of vinyl chloride |
JPS60163906A (en) * | 1984-02-07 | 1985-08-26 | Toyo Soda Mfg Co Ltd | Suspension polymerization of vinyl chloride |
JPH01188309A (en) * | 1988-01-22 | 1989-07-27 | Toyoda Gosei Co Ltd | Manufacture of polyvinyl chloride material for extrusion molding |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01104592A (en) * | 1987-10-15 | 1989-04-21 | Tokai Shoji Block Kogyo Kk | Inversion machine for heavy article made of concrete |
-
1981
- 1981-02-13 JP JP1904181A patent/JPS6026488B2/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60158207A (en) * | 1984-01-27 | 1985-08-19 | Toyo Soda Mfg Co Ltd | Suspension polymerization of vinyl chloride |
JPH0412721B2 (en) * | 1984-01-27 | 1992-03-05 | Tosoh Corp | |
JPS60163906A (en) * | 1984-02-07 | 1985-08-26 | Toyo Soda Mfg Co Ltd | Suspension polymerization of vinyl chloride |
JPH01188309A (en) * | 1988-01-22 | 1989-07-27 | Toyoda Gosei Co Ltd | Manufacture of polyvinyl chloride material for extrusion molding |
JPH0649288B2 (en) * | 1988-01-22 | 1994-06-29 | 豊田合成株式会社 | Method for producing polyvinyl chloride material for extrusion molding |
Also Published As
Publication number | Publication date |
---|---|
JPS6026488B2 (en) | 1985-06-24 |
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