WO1988007559A1 - Polymere cationique soluble dans l'eau - Google Patents
Polymere cationique soluble dans l'eau Download PDFInfo
- Publication number
- WO1988007559A1 WO1988007559A1 PCT/JP1988/000269 JP8800269W WO8807559A1 WO 1988007559 A1 WO1988007559 A1 WO 1988007559A1 JP 8800269 W JP8800269 W JP 8800269W WO 8807559 A1 WO8807559 A1 WO 8807559A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- general formula
- water
- molecular weight
- insoluble gel
- monomer represented
- 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.)
- Ceased
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/52—Amides or imides
- C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
- C08F220/60—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide containing nitrogen in addition to the carbonamido nitrogen
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/52—Amides or imides
- C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/52—Amides or imides
- C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
- C08F220/56—Acrylamide; Methacrylamide
Definitions
- the present invention relates to a high molecular weight force-theon polymer having excellent water solubility. More specifically, a dialkylaminobutyryl (meth) acrylamide or a neutralized salt thereof or a quaternary ammonium salt thereof as a polymer constituent unit may be obtained alone or by copolymerization with (meth) acrylamide.
- the present invention relates to a thionic polymer having good molecular weight and good water solubility.
- polyacrylamide is used as a force-ionic flocculant, modified with thiothion, a copolymer of acrylamide and N, N-dialkylaminoethyl (meth) acrylate or a quaternized ammonium salt thereof (Japanese Patent Publication No. 5 ⁇ - ⁇ ), 7142, Japanese Patent Publication No. 52-222938), N, N-dialkylaminoalkyl ', meth) acrylamide or its quaternary ammonium salt or neutralized salt A heavy base (Japanese Patent Publication No. Sho 59-247708, Japanese Patent Application Laid-Open No. 59-26106) has been proposed.
- the above-mentioned cationically modified polyacrylamide is modified by a polymer reaction, and in order to obtain a product having a high degree of cationization, the molecular weight of the raw material polyacrylamide is reduced.
- a high molecular weight polymer is necessary, Acrylamide and N, N-dialkylaminoethyl (meth) acrylate or its quaternary ammonium salt are not sufficient because the acrylate raw material is susceptible to hydrolysis. forms a substance having a carboxyl group is Anion groups in aqueous solution polymerization sub, the cationization of the polymer is reduced: with a disadvantage that.
- the present inventors have solved the above-mentioned problems, and as a result of intensive studies to obtain a cationic polymer having a high molecular weight and a high degree of cationization, the water-insoluble gel-like substance is converted into a cationic polymer used for polymerization.
- the present inventors have found that the problem is caused by the presence of a divinyl monomer contained in the monomer, and have completed the present invention. That is, the present invention is selected from the group consisting of a vinyl monomer represented by the general formula (1), a neutralized salt monomer represented by the general formula (2), and a quaternary ammonium salt monomer represented by the general formula (3).
- the molar ratio of one or more of the above-mentioned one or more and the vinyl monomer represented by the general formula (4) is 100: 0
- 9 5 range - in polymerization also shall apply average molecular weight obtained by field copolymerization with 1 0 6 or more, and a water-soluble, wherein the water-insoluble gel content is 5 0 gr Z g or less And a method for producing the same.
- the average molecular weight M is a value calculated from the intrinsic viscosity obtained by dissolving the polymer in a 1N aqueous solution of sodium nitrate at 3 CTC using a Ostold viscometer [; 7] by the following formula. Is required.
- the content of the water-soluble gel was calculated as the gel weight (g) Zg by measuring the weight of the filtration residue when a water solution obtained by dissolving 1 g of the polymer in water-Otnl in absolute dry terms was filtered through a 200 mesh wire mesh. Show.
- the divinyl monomer represented by the general formula (5) contained in one or more kinds of monomers to be subjected to polymerization is not more than 10 ppm, and not more than 20 ppm. preferable.
- C0NH-CH2-CH CH 2
- the above-mentioned water-insoluble gel-like material becomes a polymer with a content of more than 50 gg, resulting in poor practicality. Further, purification by a solvent extraction method or the like is required, which is economically disadvantageous.
- the monomers of the general formulas (1) to (4) wherein the divinyl monomer has a content of 10 Oppm or less can be obtained by purifying each crude monomer under reduced pressure under a nitrogen atmosphere to remove the divinyl monomer.
- Examples of the vinyl monomer represented by the general formula (1) used for the production of the cationic polymer of the present invention include N, N-dimethylaminobutyrylacrylamide, N, N-getylaminobutyrylacrylamide, N, N — Diaminopropylaminopropylacrylamide, and meta-forms corresponding thereto. Since these vinyl monomers have a problem of producing by-products of the divinyl monomer represented by the general formula (5) in the presence of air, these divinyl monomers have a concentration of 100 ppm or less immediately after the production of vinyl monomers. It is desirable to polymerize immediately, but when preserving, appropriate treatment such as shutting off air, especially oxygen components, is required.
- neutralized salts (general formula (2)) and quaternary ammonium salts (general formula (3)) of these vinyl monomers rarely produce divinyl monomers during storage, so It is preferable to use a neutralized salt or a quaternary ammonium salt as long as the performance as a combination is acceptable.
- the neutralized salt monomer represented by the general formula (2) used in the present invention is obtained by adding various mineral acids, organic acids, for example, hydrochloric acid, sulfuric acid, phosphoric acid, acetic acid, p-toluenesulfonic acid to the above-mentioned vinyl monomer (1).
- various mineral acids, organic acids for example, hydrochloric acid, sulfuric acid, phosphoric acid, acetic acid, p-toluenesulfonic acid.
- the quaternary ammonium salt of the general formula (3) used in the present invention is represented by the general formula (1): It can be produced by reacting a conventionally known quaternizing agent such as an alkyl halide, an aralkyl halide, a dialkyl sulfate or the like with a vinyl monomer. Particularly preferred are propyl chloride, benzyl chloride and the like. More specifically, they can be produced, for example, by the method described in JP-A-59-24708. '
- polymerization initiators include peroxides, for example, ammonium persulfate, potassium persulfate, benzoyl peroxide and azo compounds, for example, azobisisobutyronitrile, 2,2'-azobis (2-amidinob-pan).
- peroxides for example, ammonium persulfate, potassium persulfate, benzoyl peroxide and azo compounds, for example, azobisisobutyronitrile, 2,2'-azobis (2-amidinob-pan).
- azo compounds for example, azobisisobutyronitrile, 2,2'-azobis (2-amidinob-pan.
- oxidizing agents include hydrogen peroxide, ammonium persulfate, potassium persulfate, persulfates such as sodium persulfate, potassium bromate, bromates such as sodium bromate, and perboric acid. Potassium, sodium perborate, perborate such as ammonium perborate, potassium percarbonate, sodium percarbonate, percarbonate such as ammonium percarbonate, potassium perphosphate, sodium perphosphate, And superphosphates such as ammonium perphosphate.
- reducing agents include iron salts such as ferrous sulfate and ferrous chloride, potassium bisulfite, sodium bisulfite, potassium metabisulfite, sodium metabisulfite, potassium thiosulfate, sodium thiosulfate, and nitrite
- iron salts such as ferrous sulfate and ferrous chloride
- potassium bisulfite sodium bisulfite
- potassium metabisulfite sodium metabisulfite
- potassium thiosulfate sodium thiosulfate
- nitrite examples include water-soluble inorganic reducing agents such as sodium, and water-soluble tertiary amines such as triethanolamine, triethylamine, trimethylamine, dimethylaminomethylmethacrylate, dimethylaminoethylatarylate, and tetramethylethylenediamine.
- polymerization initiators are usually used in a range of about 0.001 to 0.5% by weight based on all monomers.
- the polymerization initiation temperature varies depending on the type of polymerization initiator, it is usually 0 ° (: up to 100 ° (:, preferably, about 10 ° (: up to about 50 ° C.)
- Normal aqueous polymerization, reverse Citrus emulsion polymerization, precipitation polymerization and the like can be employed, and there is no limitation on the synthesis method. '
- the concentration of dissolved oxygen in the polymerization system is determined not only from the viewpoint that the polymerization reaction does not proceed smoothly due to the presence of oxygen, but also from the viewpoint of suppressing gelation due to the by-product of the divinyl monomer of the general formula (5) in the polymerization reaction step. It is preferred that the oxygen concentration be as low as possible. It is preferable that the oxygen concentration be replaced with an inert gas such as nitrogen gas and the oxygen concentration be 0.5 ppm or less, more preferably 0.1 ppm or less.
- the present invention provides a method for producing a cationic polymer having a high molecular weight by polymerizing a monomer having a divinyl monomer content of 100 ppm or less as a raw material.
- a water-insoluble gel-like product is suppressed to a low level, a water-soluble polymer is obtained, and a high-molecular-weight cationic polymer can be obtained.
- test method in each example was based on the following method.
- the obtained polymer is a rubber-like elastic material, and the polymerization rate of this polymer is measured by a rheometry method to obtain a pure polymer content, which is 1 g in terms of polymer dry weight.
- the rubber-like elastic material was collected, it was dissolved in 100 ml of water overnight at room temperature at room temperature.
- the gelled product in the obtained solution was filtered through a 200 mesh wire mesh. The water adhering to the gel was thoroughly wiped off and weighed to determine the weight of the water-insoluble gel.
- N, N-Dimethylaminobutyrylacrylamide was subjected to vacuum distillation under a nitrogen atmosphere to completely remove divinyl monomer (N-arylacrylamide), and immediately subjected to the polymerization shown below.
- the analysis of N-acrylacrylamide was performed by gas chromatography.
- N, N-dimethylaminobupyracrylamide obtained above and a commercially available acrylamide were mixed at a molar ratio of 2080 to prepare a 15% aqueous solution, and 150 parts of this aqueous solution was placed in a beaker and mixed with sulfuric acid. Adjusted to 0.
- This aqueous solution is charged into a glass adiabatic closed polymerization reactor having a stirrer, a thermometer, and a nitrogen inlet tube, and immersed in a constant temperature water bath at 20 ° C until the dissolved oxygen in the system reaches 0.1 ppm. High purity nitrogen was introduced.
- N, N-Dimethylaminobutyrylacrylamide purified in the same manner as in Example 1 was sealed in the presence of air, sealed at room temperature for 2 days, and stored as divinylamine.
- a rubber-like elastic material was obtained by performing the same treatment as in Example 1 except that the amount of the monomer increased from Oppm to 2 ppm.
- the water-insoluble gel content was 450 gr g.
- a rubber-like elastic material was obtained by performing the same treatment as in Comparative Example 1 except that the amount of the polymerization initiator was changed to 100 times in Comparative Example 1.
- the polymerization rate, average molecular weight (Mw), and insoluble gel content of the obtained copolymer were measured.
- the polymerization rate was 99.7%
- the water-insoluble gel content was 38 gZg
- the water solubility was relatively good.
- the average molecular weight was only 1.06 ⁇ 10 5 . In other words, the content of the water-insoluble gel was reduced, but the average molecular weight was also reduced, and it was unsatisfactory as a flocculant.
- N, N-dimethylaminobutyryl methacrylamide instead of N, dimethylaminobutyryl acrylamide of Example 1 was rectified under reduced pressure under a nitrogen atmosphere under reduced pressure to obtain a vinyl dimer (N-aryl methacrylamide).
- the polymer was polymerized under the same conditions as in Example 1 except that a gel-like elastic material was completely removed to obtain a gel-like elastic body.
- the polymerization rate, average molecular weight (Mw), and insoluble gel content of this product were measured. As a result, the polymerization rate was 98.8%, the average molecular weight was 1.76 ⁇ 10 s , and no water-insoluble gel was observed.
- N, N-Dimethylaminopropyl teracrylamide as in Example 3 Then, the N, N-dimethylaminobutyryl methacrylamide was sealed in the presence of air and sealed 30. C-treated for 30 days and the rubber-like elastic material was treated in the same manner as in Example 1 except that the divinyl monomer (N-aryl methacrylamide) whose amount was increased from ⁇ to 114 ppm was used. I got It formed a giant gel when dissolved in water, and it was impossible to measure the conversion and the average molecular weight. The water-insoluble gel content was 430 gZg.
- the 3-acetamidopropyltrimethylammonium chloride-containing solution layer was subjected to a reduced pressure treatment at 20 to 30 ° C to remove the contained acetone. Then, 586 parts of an aqueous solution of 3-acrylamidopent bilitrimethylammonium chloride were obtained. The quaternary ammonium salt concentration in the product was 78.8%, and no divinyl monomer (N-arylacrylamide) was detected.
- the 3-acrylamide brovir trimethylammonium chloride and acrylamide thus obtained were mixed at a molar ratio of 1090, 3070, and 80Z20 according to Examples 4, 5, and 6, respectively, and mixed with a 15% aqueous solution. And polymerized under the same conditions as in the following Examples to obtain a polymer.
- N, N-dimethylaminobutyrylacrylamide having a divinyl monomer (polyacrylacrylamide) content of 205 ppm was used as N, N-dimethylaminobutyrylacrylamide.
- polyacrylacrylamide polyacrylacrylamide
- an aqueous solution of 3-acrylamide provir trimethylammonium chloride was obtained.
- the quaternary ammonium salt concentration in the product was 78.7%, and the dipinyl monomer (N-arylacrylamide) was 105 ppm.
- the polymerization rate average molecular weight (Mw), and insoluble gel content of each polymer, the polymerization rate, average molecular weight, and water-insoluble gel are as follows.
- Example 2 1000 parts of N, N-dimethylaminobutyryl acrylamide (no divinyl monomer detected) rectified in the same manner as in Example 1 was charged into a three-necked flask equipped with a stirrer, a viscometer and a dropping funnel, and polymerized.
- Oxalic acid as an inhibitor 0.5 parts was dissolved 49.62% sulfuric acid aqueous solution 652.1 parts was dripped over 1.5 hours while cooling the reactor with ice so that the temperature was 30 ° C or less Thus, a sulfate aqueous solution of N, N-dimethylaminobutyrylacrylamide was obtained. At this time, the dissolved oxygen concentration in the product was 1.2 ppm, and divinyl monomer was not detected.
- N, N-dimethylaminobutyryl acrylamide sulfate and acrylamide thus obtained were mixed at a molar ratio of 25/75 and 100 ZO, respectively, according to Examples 7 and 8, and mixed with a 5% aqueous solution. Then, polymerization was carried out in the same manner as in Example 1 under the same reaction conditions to obtain respective polymers.
- the polymerization rate of each polymer, average molecular weight (Mw) and a result of measuring an insoluble gel content, rate of polymerization, average molecular weight is as follows, the water in these all average molecular weight Rights] As can be seen from the results 0 6 or more It had good water solubility without insoluble gel.
- the content of divinyl monomer in the N, N-dimethylmethylaminopropyl acrylamide sulfate used for polymerization of the intermediate raw material obtained by the reaction with sulfuric acid was 115 ppm.
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019880701523A KR890700621A (ko) | 1987-03-23 | 1988-11-23 | 수용성이 양호한 양이온성 중합체 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62065720A JPS63234007A (ja) | 1987-03-23 | 1987-03-23 | 水溶性が良好なカチオン性重合体 |
| JP62/65720 | 1987-03-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1988007559A1 true WO1988007559A1 (fr) | 1988-10-06 |
Family
ID=13295135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP1988/000269 Ceased WO1988007559A1 (fr) | 1987-03-23 | 1988-03-15 | Polymere cationique soluble dans l'eau |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0419654A1 (ja) |
| JP (1) | JPS63234007A (ja) |
| KR (1) | KR890700621A (ja) |
| AU (1) | AU622109B2 (ja) |
| WO (1) | WO1988007559A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0494554A1 (fr) * | 1991-01-09 | 1992-07-15 | Societe Francaise Hoechst | Nouveaux copolymères cationiques, de nouvelles émulsions et leur application |
Families Citing this family (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9123683D0 (en) * | 1991-11-07 | 1992-01-02 | Sandoz Ltd | Improvements in or relating to organic compounds |
| FR2684676A1 (fr) * | 1991-12-09 | 1993-06-11 | Hoechst France | Nouveaux copolymeres cationiques insolubles dans l'eau, de nouvelles dispersions et leur application dans l'enduction des papiers. |
| US6069216A (en) * | 1997-06-11 | 2000-05-30 | Kao Corporation | Cationic group-containing copolymer and thickener |
| US6897168B2 (en) | 2001-03-22 | 2005-05-24 | Kimberly-Clark Worldwide, Inc. | Water-dispersible, cationic polymers, a method of making same and items using same |
| US7070854B2 (en) | 2001-03-22 | 2006-07-04 | Kimberly-Clark Worldwide, Inc. | Water-dispersible, cationic polymers, a method of making same and items using same |
| US6828014B2 (en) | 2001-03-22 | 2004-12-07 | Kimberly-Clark Worldwide, Inc. | Water-dispersible, cationic polymers, a method of making same and items using same |
| US6908966B2 (en) | 2001-03-22 | 2005-06-21 | Kimberly-Clark Worldwide, Inc. | Water-dispersible, cationic polymers, a method of making same and items using same |
| CA2619361C (en) | 2005-08-25 | 2015-10-20 | University Of Washington | Super-low fouling sulfobetaine and carboxybetaine materials and related methods |
| US20110097277A1 (en) | 2005-08-25 | 2011-04-28 | University Of Washington | Particles coated with zwitterionic polymers |
| EP2069412B1 (en) | 2006-08-07 | 2019-01-02 | University of Washington | Mixed charge copolymers and hydrogels |
| MX2009007101A (es) | 2006-12-29 | 2009-12-01 | Univ Washington | Superficies y materiales antibioincrustación bifuncionales. |
| US8658192B2 (en) | 2007-11-19 | 2014-02-25 | University Of Washington | Integrated antimicrobial and low fouling materials |
| US9533006B2 (en) | 2007-11-19 | 2017-01-03 | University Of Washington | Marine coatings |
| EP2225331B1 (en) | 2007-11-19 | 2016-01-06 | University of Washington | Marine coatings |
| AU2008326438B2 (en) | 2007-11-19 | 2014-09-04 | University Of Washington | Cationic betaine precursors to zwitterionic betaines having controlled biological properties |
| EP2352796A1 (en) | 2008-12-05 | 2011-08-10 | Semprus Biociences Corporation | Layered non-fouling, antimicrobial, antithrombogenic coatings |
| EP2480892A1 (en) | 2009-09-25 | 2012-08-01 | Origene Technologies, Inc. | Protein arrays and uses thereof |
| JP5868862B2 (ja) | 2009-11-06 | 2016-02-24 | ユニヴァーシティ・オブ・ワシントン・スルー・イッツ・センター・フォー・コマーシャリゼーション | 双性イオンポリマーバイオコンジュゲートおよび関連する方法 |
| CN102906127A (zh) | 2009-11-06 | 2013-01-30 | 华盛顿大学商业中心 | 来自两性离子聚合物的自组装颗粒以及相关的方法 |
| CN101885803B (zh) * | 2010-05-28 | 2012-06-06 | 中国海洋石油总公司 | 一种阳离子聚合物的应用 |
| CA2872378C (en) | 2011-07-20 | 2016-01-12 | University Of Washington Through Its Center For Commercialization | Photonic blood typing |
| CA2858730C (en) | 2011-12-14 | 2017-07-18 | Semprus Biosciences Corp. | Surface modified contact lenses |
| CA2859195C (en) | 2011-12-14 | 2016-09-27 | Semprus Biosciences Corp. | Imbibing process for contact lens surface modification |
| WO2013090790A1 (en) | 2011-12-14 | 2013-06-20 | Semprus Biosciences Corp. | Silicone hydrogel contact lens modified using lanthanide or transition metal oxidants |
| US9000063B2 (en) | 2011-12-14 | 2015-04-07 | Semprus Biosciences Corporation | Multistep UV process to create surface modified contact lenses |
| US9120119B2 (en) | 2011-12-14 | 2015-09-01 | Semprus Biosciences Corporation | Redox processes for contact lens modification |
| US10031138B2 (en) | 2012-01-20 | 2018-07-24 | University Of Washington Through Its Center For Commercialization | Hierarchical films having ultra low fouling and high recognition element loading properties |
| EP3263551B1 (de) | 2016-06-28 | 2020-10-14 | Evonik Operations GmbH | Herstellung von n,n-(di)alkylaminoalkyl(meth)acrylamid bzw. n,n-(di)alkylaminoalkyl(meth)acrylat und deren quarternären ammoniumsalzen als flockungshilfsmittel und gelbildner |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54102388A (en) * | 1978-01-30 | 1979-08-11 | Sanyo Chem Ind Ltd | Water-in-oil type polymer emulsion |
| JPS59135212A (ja) * | 1983-01-24 | 1984-08-03 | Nitto Chem Ind Co Ltd | カチオン性重合体の製造方法 |
| JPS61123610A (ja) * | 1984-11-19 | 1986-06-11 | Kyoritsu Yuki Kogyo Kenkyusho:Kk | カチオン性水溶性重合体の製造方法 |
| JPS61138607A (ja) * | 1984-12-10 | 1986-06-26 | Kyoritsu Yuki Kogyo Kenkyusho:Kk | カチオン性水溶性重合体の重合方法 |
| JPH05173093A (ja) * | 1991-12-09 | 1993-07-13 | Kuraray Co Ltd | 光学的ローパスフィルタおよび撮像装置 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5173093A (en) * | 1974-12-19 | 1976-06-24 | Sumitomo Chemical Co | Suiyoseino kachionseikojugotaino seiho |
| JPS529093A (en) * | 1975-07-10 | 1977-01-24 | Sumitomo Chem Co Ltd | Preparation of water-soluble cationic high-polymer |
| JPS5681315A (en) * | 1979-12-07 | 1981-07-03 | Mitsubishi Chem Ind Ltd | Production of water-soluble bead polymer |
| US4626363A (en) * | 1984-08-29 | 1986-12-02 | National Starch And Chemical Corporation | Cationic acrylamide emulsion polymer brine thickeners |
| DE3544909A1 (de) * | 1985-12-19 | 1987-06-25 | Stockhausen Chem Fab Gmbh | Copolymere aus acrylamid und dimethylaminopropylacrylamid als flockungsmittel und verfahren zum entwaessern von klaerschlaemmen unter verwendung dieser flockungsmittel |
-
1987
- 1987-03-23 JP JP62065720A patent/JPS63234007A/ja active Pending
-
1988
- 1988-03-15 WO PCT/JP1988/000269 patent/WO1988007559A1/ja not_active Ceased
- 1988-03-15 EP EP88902553A patent/EP0419654A1/en not_active Withdrawn
- 1988-03-15 AU AU14809/88A patent/AU622109B2/en not_active Ceased
- 1988-11-23 KR KR1019880701523A patent/KR890700621A/ko not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54102388A (en) * | 1978-01-30 | 1979-08-11 | Sanyo Chem Ind Ltd | Water-in-oil type polymer emulsion |
| JPS59135212A (ja) * | 1983-01-24 | 1984-08-03 | Nitto Chem Ind Co Ltd | カチオン性重合体の製造方法 |
| JPS61123610A (ja) * | 1984-11-19 | 1986-06-11 | Kyoritsu Yuki Kogyo Kenkyusho:Kk | カチオン性水溶性重合体の製造方法 |
| JPS61138607A (ja) * | 1984-12-10 | 1986-06-26 | Kyoritsu Yuki Kogyo Kenkyusho:Kk | カチオン性水溶性重合体の重合方法 |
| JPH05173093A (ja) * | 1991-12-09 | 1993-07-13 | Kuraray Co Ltd | 光学的ローパスフィルタおよび撮像装置 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP0419654A4 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0494554A1 (fr) * | 1991-01-09 | 1992-07-15 | Societe Francaise Hoechst | Nouveaux copolymères cationiques, de nouvelles émulsions et leur application |
Also Published As
| Publication number | Publication date |
|---|---|
| KR890700621A (ko) | 1989-04-26 |
| EP0419654A4 (en) | 1990-07-16 |
| JPS63234007A (ja) | 1988-09-29 |
| EP0419654A1 (en) | 1991-04-03 |
| AU1480988A (en) | 1988-11-02 |
| AU622109B2 (en) | 1992-04-02 |
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