JPS5461249A - Preparation of low-viscosity aqueous polymer solution - Google Patents

Preparation of low-viscosity aqueous polymer solution

Info

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
Application number
JP12835077A
Other languages
Japanese (ja)
Other versions
JPS575262B2 (en
Inventor
Yoshiharu Tategami
Masanori Kondo
Yasutoshi Kobayashi
Mitsuyuki Okada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Priority to JP12835077A priority Critical patent/JPS5461249A/en
Publication of JPS5461249A publication Critical patent/JPS5461249A/en
Publication of JPS575262B2 publication Critical patent/JPS575262B2/ja
Granted legal-status Critical Current

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  • 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
JP12835077A 1977-10-25 1977-10-25 Preparation of low-viscosity aqueous polymer solution Granted JPS5461249A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (8)

* Cited by examiner, † Cited by third party
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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