JPS57121009A - Preparation of water-soluble high-molecular weight polymer - Google Patents
Preparation of water-soluble high-molecular weight polymerInfo
- Publication number
- JPS57121009A JPS57121009A JP831681A JP831681A JPS57121009A JP S57121009 A JPS57121009 A JP S57121009A JP 831681 A JP831681 A JP 831681A JP 831681 A JP831681 A JP 831681A JP S57121009 A JPS57121009 A JP S57121009A
- Authority
- JP
- Japan
- Prior art keywords
- meth
- product
- salt
- monomer
- preparation
- 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
- Polymerisation Methods In General (AREA)
Abstract
PURPOSE: To obtain the titled polymer free from unreacted monomer, by polymerizing an aqueous solution of a monomer such as (meth)acrylamide, (meth) acrylic acid (salt), etc. in the presence of a polymerization initiator and a photo- polymerization sensitizer, and irradiating the product with ultraviolet rays.
CONSTITUTION: A monomer solution having a concentration of ≥10(wt)%, pref. ≥30% and containing monomers composed mainly mainly of one or more compounds selected from (meth)acrylamide, (meth)acrylic acid (salt) and acidic salt and quaternarized product of dialkylaminoalkyl (meth)acrylate, is subjected to the thermal polymerization in the presence of 0.01W0.5% redox polymerization initiator (e.g. a combination of potassium persulfate and trimethylamine, etc.) and 0.01W1.0% photopolymerization sensitizer (e.g. azobisisobutyronitrile) at ≤50°C until the conversion reaches ≥80%, and then the product is photo-polymerized by irradiating with ultraviolet radiation having a wavelength of 300W 400mμ.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP831681A JPS57121009A (en) | 1981-01-21 | 1981-01-21 | Preparation of water-soluble high-molecular weight polymer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP831681A JPS57121009A (en) | 1981-01-21 | 1981-01-21 | Preparation of water-soluble high-molecular weight polymer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57121009A true JPS57121009A (en) | 1982-07-28 |
Family
ID=11689743
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP831681A Pending JPS57121009A (en) | 1981-01-21 | 1981-01-21 | Preparation of water-soluble high-molecular weight polymer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57121009A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0287970A2 (en) * | 1987-04-17 | 1988-10-26 | Mitsubishi Petrochemical Co., Ltd. | Process for producing highly water absorptive polymer |
WO2001025289A1 (en) * | 1999-10-06 | 2001-04-12 | Cytec Technology Corp. | Preparation of low residual monomer content polymers |
JP2003523464A (en) * | 2000-01-28 | 2003-08-05 | チバ スペシャルティ ケミカルズ ウォーター トリートメント リミテッド | Polymerization method |
JP2009079204A (en) * | 2007-09-06 | 2009-04-16 | Nitto Denko Corp | Method for producing acrylic viscoelastic layer with combination of photopolymerization reaction and redox polymerization reaction, and adhesive tape or sheet |
-
1981
- 1981-01-21 JP JP831681A patent/JPS57121009A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0287970A2 (en) * | 1987-04-17 | 1988-10-26 | Mitsubishi Petrochemical Co., Ltd. | Process for producing highly water absorptive polymer |
WO2001025289A1 (en) * | 1999-10-06 | 2001-04-12 | Cytec Technology Corp. | Preparation of low residual monomer content polymers |
US6262141B1 (en) | 1999-10-06 | 2001-07-17 | Cytec Technology Corporation | Process for the preparation of polymers having low residual monomer content |
AU771636B2 (en) * | 1999-10-06 | 2004-04-01 | Kemira Oyj | Preparation of low residual monomer content polymers |
JP2003523464A (en) * | 2000-01-28 | 2003-08-05 | チバ スペシャルティ ケミカルズ ウォーター トリートメント リミテッド | Polymerization method |
JP2009079204A (en) * | 2007-09-06 | 2009-04-16 | Nitto Denko Corp | Method for producing acrylic viscoelastic layer with combination of photopolymerization reaction and redox polymerization reaction, and adhesive tape or sheet |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3405106A (en) | Polymerization of water soluble vinyl monomers in presence of metal salts | |
MX167235B (en) | SURFACE TREATMENT ABSORBENT POLYMERS | |
GB1581178A (en) | Process for the preparationof water-soluble acrylic and methacrylic polymers by photopolymerisation | |
JPS55133413A (en) | Preparation of crosslinked alkali metal acrylate polymer | |
ATE102220T1 (en) | PROCESS FOR THE MANUFACTURE OF FINE-PARTIAL, GEL-FORM, WATER-SWELLING COPOLYMERISATS. | |
JPS54133583A (en) | Preparation of polymer | |
JPS57121009A (en) | Preparation of water-soluble high-molecular weight polymer | |
JPS5672005A (en) | Production of polymeric material having high water absorptivity | |
JPS56103207A (en) | Preparation of dried high-molecular weight water-soluble polymer | |
JPS5620169A (en) | Scale inhibitor | |
AU562952B2 (en) | Acrylic acid polymers | |
JPS578210A (en) | Production of water-absorbing resin | |
ES8303454A1 (en) | A method for the suspension polymerization of styrenic monomers. | |
JPS56135505A (en) | Production of water-soluble vinyl polymer | |
JPH0420007B2 (en) | ||
JPS5536273A (en) | Production of macromolecular material with high water-absorbing property | |
JPS57121008A (en) | Preparation of granular water-soluble high-molecular weight polymer | |
JPS5759919A (en) | Suspension polymerizing method of vinyl shloride | |
JPS56136808A (en) | Water absorbing resin | |
JPS5691838A (en) | Water absorbing material | |
JPS5552337A (en) | Surface treating agent for porous inorganic building material | |
JPS5411988A (en) | Preparation of vinyl chloride polymer | |
JPS56136801A (en) | Preparation of aqueous emulsion of polymer | |
SU296423A1 (en) | The method of obtaining polymers of allyl compounds | |
JPS53141388A (en) | Preparation of acrylamide polymer |