JPS57212213A - Preparation of vinyl chloride resin - Google Patents
Preparation of vinyl chloride resinInfo
- Publication number
- JPS57212213A JPS57212213A JP9727481A JP9727481A JPS57212213A JP S57212213 A JPS57212213 A JP S57212213A JP 9727481 A JP9727481 A JP 9727481A JP 9727481 A JP9727481 A JP 9727481A JP S57212213 A JPS57212213 A JP S57212213A
- Authority
- JP
- Japan
- Prior art keywords
- polymerization
- steam
- vinyl chloride
- cooling water
- polymerizer
- 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 enable the increase in feed amount of polymerization, by regulating the feed amounts of cooling water, hot water, and steam to a condenser while raising the polymerization temperature gradually after the middle stage of polymerization, carrying out suspension polymerization for vinyl chloride resin with suppressing foaming.
CONSTITUTION: A polymerizer is charged with pure water, a polymerization initiator (e.g., lauroyl peroxide), a dispersant (e.g., partially saponified polyvinyl alcohol), and vinyl chloride or a vinyl monomer (e.g., ethylene) mixture consisting essentially of it. Cooling water and hot water or steam are used in the cooling water side of a condenser attached to the polymerizer, the polymerization is started while regulating the cooling water and hot water or steam and controlling the foaming in the polymerizer, and the polymerization temperature after the middle stage of the polymerization is raised gradually, to give the desired vinyl chloride resin.
EFFECT: The polymerization conversion can be raised to improve productivity, and the saving of steam for heating is made possible.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9727481A JPS57212213A (en) | 1981-06-22 | 1981-06-22 | Preparation of vinyl chloride resin |
GB08217773A GB2101614A (en) | 1981-06-22 | 1982-06-18 | Production of vinyl chloride resin |
KR8202721A KR860001114B1 (en) | 1981-06-22 | 1982-06-18 | A method for production of vinyl chloride resin |
US06/390,845 US4455413A (en) | 1981-06-22 | 1982-06-22 | Method for suppressing bubbling in polymerization of vinyl chloride resin |
DE19823223262 DE3223262A1 (en) | 1981-06-22 | 1982-06-22 | METHOD FOR PRODUCING VINYL CHORIDE RESIN |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9727481A JPS57212213A (en) | 1981-06-22 | 1981-06-22 | Preparation of vinyl chloride resin |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57212213A true JPS57212213A (en) | 1982-12-27 |
JPH0212963B2 JPH0212963B2 (en) | 1990-04-03 |
Family
ID=14187939
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9727481A Granted JPS57212213A (en) | 1981-06-22 | 1981-06-22 | Preparation of vinyl chloride resin |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57212213A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6438410A (en) * | 1987-08-03 | 1989-02-08 | Chisso Corp | Preparation of vinyl chloride polymer |
-
1981
- 1981-06-22 JP JP9727481A patent/JPS57212213A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6438410A (en) * | 1987-08-03 | 1989-02-08 | Chisso Corp | Preparation of vinyl chloride polymer |
JPH0696618B2 (en) * | 1987-08-03 | 1994-11-30 | チッソ株式会社 | Method for producing vinyl chloride polymer |
Also Published As
Publication number | Publication date |
---|---|
JPH0212963B2 (en) | 1990-04-03 |
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