JPS54117589A - Elimination of monomer - Google Patents
Elimination of monomerInfo
- Publication number
- JPS54117589A JPS54117589A JP2456578A JP2456578A JPS54117589A JP S54117589 A JPS54117589 A JP S54117589A JP 2456578 A JP2456578 A JP 2456578A JP 2456578 A JP2456578 A JP 2456578A JP S54117589 A JPS54117589 A JP S54117589A
- Authority
- JP
- Japan
- Prior art keywords
- slurry
- polymer
- packed column
- heat exchanger
- pump
- 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.)
- Pending
Links
Landscapes
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
PURPOSE: To prepare a vinyl chloride polymer free of colored matters and having excellent quality, by introducing an inert gas from the lower part of a packed column filled with an aqueous dispersion of the polymer, thereby eliminating the residual monomer from the polymer.
CONSTITUTION: 20 - 50 wt.% slurry 1 of a vinyl chloride polymer is charged into the tank 2. The temperature of the slurry is adjusted preferably to 50 - 120°C by the heat exchanger 4 and it is fed from the pump 3 to the top part of the packed column 6. The slurry is heated in the packed column 6 by steam blown from the steam pipe 9 - 11. An inert gas, e.g. nitrogen, etc., is blown from the pipe 8 of the lower part, divided into fine bubbles by the packing 7, and brought into contact with the aqueous disperion. The polymer slurry is taken out by the pump 13, preheated by the heat exchanger 4, cooled by the cooler 14 and transferred to the drying process.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2456578A JPS54117589A (en) | 1978-03-06 | 1978-03-06 | Elimination of monomer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2456578A JPS54117589A (en) | 1978-03-06 | 1978-03-06 | Elimination of monomer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54117589A true JPS54117589A (en) | 1979-09-12 |
Family
ID=12141669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2456578A Pending JPS54117589A (en) | 1978-03-06 | 1978-03-06 | Elimination of monomer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54117589A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5956410A (en) * | 1982-09-27 | 1984-03-31 | Mitsui Toatsu Chem Inc | Removal of unreacted vinyl chloride monomer |
| JPS6426604A (en) * | 1987-04-30 | 1989-01-27 | Nippon Catalytic Chem Ind | Hydrophilic polymer and production thereof |
| WO2009069462A1 (en) * | 2007-11-30 | 2009-06-04 | Zeon Corporation | Method of producing polymerized toner |
-
1978
- 1978-03-06 JP JP2456578A patent/JPS54117589A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5956410A (en) * | 1982-09-27 | 1984-03-31 | Mitsui Toatsu Chem Inc | Removal of unreacted vinyl chloride monomer |
| JPH0345726B2 (en) * | 1982-09-27 | 1991-07-12 | Mitsui Toatsu Chemicals | |
| JPS6426604A (en) * | 1987-04-30 | 1989-01-27 | Nippon Catalytic Chem Ind | Hydrophilic polymer and production thereof |
| WO2009069462A1 (en) * | 2007-11-30 | 2009-06-04 | Zeon Corporation | Method of producing polymerized toner |
| JP5387413B2 (en) * | 2007-11-30 | 2014-01-15 | 日本ゼオン株式会社 | Method for producing polymerized toner |
| US8962232B2 (en) | 2007-11-30 | 2015-02-24 | Zeon Corporation | Production process of polymerized toner |
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