JPS56135501A - Production of polymer - Google Patents
Production of polymerInfo
- Publication number
- JPS56135501A JPS56135501A JP3741080A JP3741080A JPS56135501A JP S56135501 A JPS56135501 A JP S56135501A JP 3741080 A JP3741080 A JP 3741080A JP 3741080 A JP3741080 A JP 3741080A JP S56135501 A JPS56135501 A JP S56135501A
- Authority
- JP
- Japan
- Prior art keywords
- vinyl monomer
- soluble
- water
- meth
- reversed
- 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)
Abstract
PURPOSE: To obtain a water-soluble pearl polymer with stability and a high dispersion ratio, by employing as a dispersant a copolymer containing a hydrophilic vinyl monomer and a hydrophobic vinyl monomer in a specified ratio, in subjecting a wter-soluble vinyl monomer to reversed-phase suspension polymerization.
CONSTITUTION: A copolymer is obtained by radical polymerization (e.g. by emulsion polymerization) of (A) 0.1W10wt% hydrophobic vinyl monomer such as (meth)acrylic acid with (B) 90W99.9wt% hydrophilic vinyl monomer which is well soluble in an organic solvent for reversed-phase suspension polymerization, such as a C1W12 alkyl (meth)acrylate. An aqueous solution containing (i) water-soluble vinyl monomer such as an alkali metal (meth)acrylate and (ii) a polymerization initiator is added to and dispersed with agitation in an organic solvent which is soluble in neither water nor component (i) and contains 0.001W1wt% dissolved copolymer above-produced. The resulting reaction system, after purging with N2, is subjected to reversed-phase suspension polymerization to produce a water-soluble polymer.
EFFECT: A small amount of the dispersant can give a satisfactory effect. No scale forms on the wall or the like areas of a reaction vessel.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3741080A JPS56135501A (en) | 1980-03-26 | 1980-03-26 | Production of polymer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3741080A JPS56135501A (en) | 1980-03-26 | 1980-03-26 | Production of polymer |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56135501A true JPS56135501A (en) | 1981-10-23 |
JPH028602B2 JPH028602B2 (en) | 1990-02-26 |
Family
ID=12496744
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3741080A Granted JPS56135501A (en) | 1980-03-26 | 1980-03-26 | Production of polymer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56135501A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4506062A (en) * | 1982-08-09 | 1985-03-19 | Allied Colloids Limited | Inverse suspension polymerization process |
JPS6140309A (en) * | 1984-08-01 | 1986-02-26 | Arakawa Chem Ind Co Ltd | Production of resin having high water absorption property |
JPS6153308A (en) * | 1984-08-23 | 1986-03-17 | Arakawa Chem Ind Co Ltd | Production of resin having high water absorption property |
JPS6173704A (en) * | 1984-09-19 | 1986-04-15 | Arakawa Chem Ind Co Ltd | Production of highly water-absorptive resin |
WO1986005792A1 (en) * | 1985-04-05 | 1986-10-09 | Kao Corporation | Dispersant for reversed phase suspension polymerization |
JPH01264803A (en) * | 1988-04-16 | 1989-10-23 | Mitsui Constr Co Ltd | Manufacture of particle-like ice and dried state inclusion water for manufacturing of concrete/mortar, manufacture of concrete/mortar using those fine particle-like ice and dried state inclusion water and concrete/mortar product manufactured through the same manufacturing process of concrete/mortar |
US6034183A (en) * | 1997-06-09 | 2000-03-07 | Arakawa Chemical Industries, Ltd. | Polymer having quaternary ammonium groups and process for the production thereof |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5454186A (en) * | 1977-10-07 | 1979-04-28 | Nippon Kayaku Co Ltd | Preparation of water-soluble polymer |
-
1980
- 1980-03-26 JP JP3741080A patent/JPS56135501A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5454186A (en) * | 1977-10-07 | 1979-04-28 | Nippon Kayaku Co Ltd | Preparation of water-soluble polymer |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4506062A (en) * | 1982-08-09 | 1985-03-19 | Allied Colloids Limited | Inverse suspension polymerization process |
JPS6140309A (en) * | 1984-08-01 | 1986-02-26 | Arakawa Chem Ind Co Ltd | Production of resin having high water absorption property |
JPS6153308A (en) * | 1984-08-23 | 1986-03-17 | Arakawa Chem Ind Co Ltd | Production of resin having high water absorption property |
JPS6173704A (en) * | 1984-09-19 | 1986-04-15 | Arakawa Chem Ind Co Ltd | Production of highly water-absorptive resin |
WO1986005792A1 (en) * | 1985-04-05 | 1986-10-09 | Kao Corporation | Dispersant for reversed phase suspension polymerization |
JPH01264803A (en) * | 1988-04-16 | 1989-10-23 | Mitsui Constr Co Ltd | Manufacture of particle-like ice and dried state inclusion water for manufacturing of concrete/mortar, manufacture of concrete/mortar using those fine particle-like ice and dried state inclusion water and concrete/mortar product manufactured through the same manufacturing process of concrete/mortar |
JPH0523564B2 (en) * | 1988-04-16 | 1993-04-05 | Mitsui Kensetsu Kk | |
US6034183A (en) * | 1997-06-09 | 2000-03-07 | Arakawa Chemical Industries, Ltd. | Polymer having quaternary ammonium groups and process for the production thereof |
Also Published As
Publication number | Publication date |
---|---|
JPH028602B2 (en) | 1990-02-26 |
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