JPS5580411A - Suspension polymerization of vinyl chloride - Google Patents
Suspension polymerization of vinyl chlorideInfo
- Publication number
- JPS5580411A JPS5580411A JP15436978A JP15436978A JPS5580411A JP S5580411 A JPS5580411 A JP S5580411A JP 15436978 A JP15436978 A JP 15436978A JP 15436978 A JP15436978 A JP 15436978A JP S5580411 A JPS5580411 A JP S5580411A
- Authority
- JP
- Japan
- Prior art keywords
- polyvinyl alcohol
- vinyl chloride
- suspension polymerization
- vinyl
- 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)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
PURPOSE: To obtain a vinyl chloride type polymer with excellent porosity and processability by adding modified polyvinyl alcohol and partially saponified polyvinyl alcohol before suspension polymerization of vinyl chloride type monomer.
CONSTITUTION: In case of carrying out suspension polymerization of vinyl chloride monomer or a mixture with a monomer copolimerizable therewith, a modified polyvinyl alcohol of which an average polymerization degree is 300W2500, an average saponification degree is 65W80mol% and a clouding point of a 4wt% aqeous soln. is above 60°C and a partially saponified polyvinyl alcohol of which a clouding point of a 4wt% aqueous soln. is below polymerization temperature are added. As an applied modified polyvinyl alcohol, a saponified product of a copolymer of vinyl acetate and crotonic acid, a copolymer of vinyl acetate and vinyl thioester or the like is designated and the ratio of other compounds copolimerizable with vinyl acetate is preferably 0.1W5.0mol%.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53154369A JPS5811890B2 (en) | 1978-12-13 | 1978-12-13 | Suspension polymerization method of vinyl chloride |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53154369A JPS5811890B2 (en) | 1978-12-13 | 1978-12-13 | Suspension polymerization method of vinyl chloride |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5580411A true JPS5580411A (en) | 1980-06-17 |
JPS5811890B2 JPS5811890B2 (en) | 1983-03-05 |
Family
ID=15582646
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53154369A Expired JPS5811890B2 (en) | 1978-12-13 | 1978-12-13 | Suspension polymerization method of vinyl chloride |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5811890B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0625313A (en) * | 1991-06-21 | 1994-02-01 | Sumitomo Chem Co Ltd | Suspension polymerization of vinyl chloride monomer |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54112985A (en) * | 1978-02-23 | 1979-09-04 | Nippon Synthetic Chem Ind Co Ltd:The | Suspension polymerization of vinyl compound |
-
1978
- 1978-12-13 JP JP53154369A patent/JPS5811890B2/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54112985A (en) * | 1978-02-23 | 1979-09-04 | Nippon Synthetic Chem Ind Co Ltd:The | Suspension polymerization of vinyl compound |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0625313A (en) * | 1991-06-21 | 1994-02-01 | Sumitomo Chem Co Ltd | Suspension polymerization of vinyl chloride monomer |
Also Published As
Publication number | Publication date |
---|---|
JPS5811890B2 (en) | 1983-03-05 |
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