JPS5460391A - Acrylonitrile polymer powder having high bulk density - Google Patents
Acrylonitrile polymer powder having high bulk densityInfo
- Publication number
- JPS5460391A JPS5460391A JP12594477A JP12594477A JPS5460391A JP S5460391 A JPS5460391 A JP S5460391A JP 12594477 A JP12594477 A JP 12594477A JP 12594477 A JP12594477 A JP 12594477A JP S5460391 A JPS5460391 A JP S5460391A
- Authority
- JP
- Japan
- Prior art keywords
- polymer
- acrylonitrile
- bulk density
- high bulk
- sulfonate
- 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 powdery acrylonitrile polymer having high bulk density, and useful as fibers having excellent filtering characteristics, cleanability and dehydrating property, by introducing specific amount of sulfonate groups, etc. to the polymer.
CONSTITUTION: An aqueous suspension of acrylonitrile and a monomer having a sulfonic group, e.g. allyl sulfonate, etc., is prepared so as to give a polymer containing ≥ 85 wt.% of acrylonitrile and ≥5×10-5 equivalent/g-polymer of sulfonate group. A redox catalyst, e.g. potassium persulfate, sodium bisulfite, etc. is added to the suspension, and the polymerization is carried out at an electrolyte concentration of preferably ≤0.15 mole/1(water), at a ratio of water to the monomer of 2W4 and at PH of 2W4. The polymer is washed and dired by a centrifugal drier, etc. kto give the desired polymer.
EFFECT: The powdery polymer has a reduced angle of repose and excellent lowability, therefore advantageous for powder transportation, weighing, etc.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12594477A JPS5460391A (en) | 1977-10-20 | 1977-10-20 | Acrylonitrile polymer powder having high bulk density |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12594477A JPS5460391A (en) | 1977-10-20 | 1977-10-20 | Acrylonitrile polymer powder having high bulk density |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5460391A true JPS5460391A (en) | 1979-05-15 |
Family
ID=14922827
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12594477A Pending JPS5460391A (en) | 1977-10-20 | 1977-10-20 | Acrylonitrile polymer powder having high bulk density |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5460391A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009203317A (en) * | 2008-02-27 | 2009-09-10 | Mitsubishi Rayon Co Ltd | Polyacrylonitrile-based polymer particle, and method for producing same |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4914592A (en) * | 1972-03-21 | 1974-02-08 | ||
JPS4940389A (en) * | 1972-08-28 | 1974-04-15 | ||
JPS4987788A (en) * | 1972-12-26 | 1974-08-22 | ||
JPS503155A (en) * | 1973-05-12 | 1975-01-14 | ||
JPS528090A (en) * | 1975-07-08 | 1977-01-21 | Japan Exlan Co Ltd | Process for preparing fine powders of acrylonitirile polymers |
JPS52107045A (en) * | 1976-03-05 | 1977-09-08 | Japan Exlan Co Ltd | Stable aqueous emulsions of acrylonitrile polymers, their preparation, and dyeability improvers therefrom |
JPS5374591A (en) * | 1976-12-15 | 1978-07-03 | Japan Exlan Co Ltd | Preparation of acrylonitrile type polymer aqueous emulsion |
-
1977
- 1977-10-20 JP JP12594477A patent/JPS5460391A/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4914592A (en) * | 1972-03-21 | 1974-02-08 | ||
JPS4940389A (en) * | 1972-08-28 | 1974-04-15 | ||
JPS4987788A (en) * | 1972-12-26 | 1974-08-22 | ||
JPS503155A (en) * | 1973-05-12 | 1975-01-14 | ||
JPS528090A (en) * | 1975-07-08 | 1977-01-21 | Japan Exlan Co Ltd | Process for preparing fine powders of acrylonitirile polymers |
JPS52107045A (en) * | 1976-03-05 | 1977-09-08 | Japan Exlan Co Ltd | Stable aqueous emulsions of acrylonitrile polymers, their preparation, and dyeability improvers therefrom |
JPS5374591A (en) * | 1976-12-15 | 1978-07-03 | Japan Exlan Co Ltd | Preparation of acrylonitrile type polymer aqueous emulsion |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009203317A (en) * | 2008-02-27 | 2009-09-10 | Mitsubishi Rayon Co Ltd | Polyacrylonitrile-based polymer particle, and method for producing same |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4351922A (en) | Process for the production of highly water-absorbing but less water-soluble hydrogels | |
US4618631A (en) | Production process for highly water absorbable polymer | |
CA2015193A1 (en) | Thickened aqueous compositions | |
KR100351477B1 (en) | Thermosensitive polymer composition with water absorption and water resistance | |
JPS55721A (en) | Aqueous dispersion of water-soluble high polymer complex | |
KR910000802A (en) | Manufacturing method of absorbent resin | |
JPS5714640A (en) | Separating membrane of methyl methacrylate type | |
ES2069004T3 (en) | PROCEDURE FOR THE PRODUCTION AND USE OF IMPROVED MALEIC ACID (CO) POLYMER SALT AS TO BIODEGRADABILITY. | |
JPS54133583A (en) | Preparation of polymer | |
JPS5460391A (en) | Acrylonitrile polymer powder having high bulk density | |
US3278501A (en) | Process for preparing polymers of acrylamide with ethylenically unsaturated sulfines | |
Zhang et al. | Water absorbency of poly (sodium acrylate) superabsorbents crosslinked with modified poly (ethylene glycol) s | |
JPS578210A (en) | Production of water-absorbing resin | |
JPS5516016A (en) | Improved salt-resistant water-absorbing material | |
JPS58127714A (en) | Production of highly water-absorbing polymer | |
US3067186A (en) | Vinyl chloride polymerisation process | |
JPS5672006A (en) | Novel copolymer and production thereof | |
Rånby et al. | Water vapor absorption and aqueous retention of hydrolyzed starch polyacrylonitrile graft copolymers—“Superabsorbent starch” | |
US3308102A (en) | Polysulfone flocculants | |
JPS53130789A (en) | Preparation of water absorbing resin | |
JPS56161412A (en) | Production of self-crosslinking water-absorbing resin | |
KR870000366A (en) | Manufacturing method of absorber material | |
JPS5691838A (en) | Water absorbing material | |
Ouchi et al. | Vinyl polymerization. 411. Experimental supports for the concept of hard and soft hydrophobic areas and monomers in the so-called uncatalyzed polymerization. | |
JPS57121009A (en) | Preparation of water-soluble high-molecular weight polymer |