JPS5461249A - Preparation of low-viscosity aqueous polymer solution - Google Patents
Preparation of low-viscosity aqueous polymer solutionInfo
- Publication number
- JPS5461249A JPS5461249A JP12835077A JP12835077A JPS5461249A JP S5461249 A JPS5461249 A JP S5461249A JP 12835077 A JP12835077 A JP 12835077A JP 12835077 A JP12835077 A JP 12835077A JP S5461249 A JPS5461249 A JP S5461249A
- Authority
- JP
- Japan
- Prior art keywords
- polymer solution
- meth
- acrylic acid
- viscosity
- inorganic
- 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
- Processes Of Treating Macromolecular Substances (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
PURPOSE: To prepare a low-vis cosity aqueous polymer solution, by adding an inorganic or organic salt having menovalent cations to an aqueous solution of monovalent metal ions or ammonium ions of ethylene-(meth) a crylic acid copolymer with a specific concentration.
CONSTITUTION: An ethylene-(meth) acrylic acid copolymer having an MI of 1- 800g/10min. with a methacrylic or acrylic acid content of 10-30wt.% is dissolved in water and 0.5W1.5 moles based on the (meth) acrylic acid of an inorganic or organic salt having monovalent metallic ions or ammonium ions at 80W150°C for 1W5 hr under heating and agitation to form a high-viscosity aqueous polymer solution having a viscosity ≥ 1,000cp with a polymer concentration of 10W50wt%. 0.1W10% ion equivalent based on the (meth) acrylic acid of an inorganic or organic salt having monovalent cations is added to the solution to reduce the polymer solution viscosity by 50% or more
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12835077A JPS5461249A (en) | 1977-10-25 | 1977-10-25 | Preparation of low-viscosity aqueous polymer solution |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12835077A JPS5461249A (en) | 1977-10-25 | 1977-10-25 | Preparation of low-viscosity aqueous polymer solution |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5461249A true JPS5461249A (en) | 1979-05-17 |
JPS575262B2 JPS575262B2 (en) | 1982-01-29 |
Family
ID=14982629
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12835077A Granted JPS5461249A (en) | 1977-10-25 | 1977-10-25 | Preparation of low-viscosity aqueous polymer solution |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5461249A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003529624A (en) * | 1999-04-16 | 2003-10-07 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | Coating composition comprising low MFI ethylene acrylic acid copolymer |
WO2010101109A1 (en) | 2009-03-03 | 2010-09-10 | 三井・デュポンポリケミカル株式会社 | Aqueous dispersion, process for producing same, and layered product |
JP2017105518A (en) * | 2015-12-11 | 2017-06-15 | 住友ベークライト株式会社 | Cover tape for packaging electronic component |
CN112625262A (en) * | 2019-10-07 | 2021-04-09 | Sk新技术株式会社 | Aqueous dispersion of ethylene-carboxylic acid copolymer and process for producing the same |
CN114349384A (en) * | 2021-12-27 | 2022-04-15 | 湖南先锋建材有限公司 | Viscosity reduction type water reducing agent |
-
1977
- 1977-10-25 JP JP12835077A patent/JPS5461249A/en active Granted
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003529624A (en) * | 1999-04-16 | 2003-10-07 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | Coating composition comprising low MFI ethylene acrylic acid copolymer |
JP4996013B2 (en) * | 1999-04-16 | 2012-08-08 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | Coating composition comprising low MFI ethylene acrylic acid copolymer |
WO2010101109A1 (en) | 2009-03-03 | 2010-09-10 | 三井・デュポンポリケミカル株式会社 | Aqueous dispersion, process for producing same, and layered product |
JP2017105518A (en) * | 2015-12-11 | 2017-06-15 | 住友ベークライト株式会社 | Cover tape for packaging electronic component |
CN112625262A (en) * | 2019-10-07 | 2021-04-09 | Sk新技术株式会社 | Aqueous dispersion of ethylene-carboxylic acid copolymer and process for producing the same |
EP3805296A1 (en) * | 2019-10-07 | 2021-04-14 | SK Innovation Co., Ltd. | Aqueous dispersion of ethylene-carboxylic acid copolymer and method of preparing the same |
US11499017B2 (en) | 2019-10-07 | 2022-11-15 | Sk Innovation Co., Ltd. | Aqueous dispersion of ethylene-carboxylic acid copolymer and method of preparing the same |
CN114349384A (en) * | 2021-12-27 | 2022-04-15 | 湖南先锋建材有限公司 | Viscosity reduction type water reducing agent |
Also Published As
Publication number | Publication date |
---|---|
JPS575262B2 (en) | 1982-01-29 |
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