JPS56103207A - Preparation of dried high-molecular weight water-soluble polymer - Google Patents

Preparation of dried high-molecular weight water-soluble polymer

Info

Publication number
JPS56103207A
JPS56103207A JP654480A JP654480A JPS56103207A JP S56103207 A JPS56103207 A JP S56103207A JP 654480 A JP654480 A JP 654480A JP 654480 A JP654480 A JP 654480A JP S56103207 A JPS56103207 A JP S56103207A
Authority
JP
Japan
Prior art keywords
polymer
acrylamide
dried
preparation
molecular weight
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
Application number
JP654480A
Other languages
Japanese (ja)
Inventor
Shigenori Tajiri
Shigenao Kawakami
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 JP654480A priority Critical patent/JPS56103207A/en
Publication of JPS56103207A publication Critical patent/JPS56103207A/en
Pending legal-status Critical Current

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  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

PURPOSE: To obtain a dried polymer useful as a coagulant, etc. having a high coagulating property with a reduced amount of the residual monomer and a water- insoluble substance, by drying a hydrous acrylamide (co)polymer, etc. in the presence of an alkali metal salt of sulfurous acid, etc.
CONSTITUTION: Acrylamide or an acrylic monomer, e.g. sodium acrylate, or both are polymerized in an aqueous solution in the presence of ethylenediamine, etc. as a inhibitor for crosslinking and a redox system of potassium persulfate/tetramethylethylenediamine as a polymerization initiator, to give an acrylamide and/or acrylic acid polymer or copolymer. The resultant hydrous polymer is then dried in the presence of one or more hydrosulfites, sulfites and pyrosulfites (each alkali metal salt) to afford the aimed polymer.
COPYRIGHT: (C)1981,JPO&Japio
JP654480A 1980-01-22 1980-01-22 Preparation of dried high-molecular weight water-soluble polymer Pending JPS56103207A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP654480A JPS56103207A (en) 1980-01-22 1980-01-22 Preparation of dried high-molecular weight water-soluble polymer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP654480A JPS56103207A (en) 1980-01-22 1980-01-22 Preparation of dried high-molecular weight water-soluble polymer

Publications (1)

Publication Number Publication Date
JPS56103207A true JPS56103207A (en) 1981-08-18

Family

ID=11641274

Family Applications (1)

Application Number Title Priority Date Filing Date
JP654480A Pending JPS56103207A (en) 1980-01-22 1980-01-22 Preparation of dried high-molecular weight water-soluble polymer

Country Status (1)

Country Link
JP (1) JPS56103207A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4518770A (en) * 1984-01-30 1985-05-21 Atlantic Richfield Company Process for the preparation of polyhydroxybutadienes
JPS63118375A (en) * 1986-06-04 1988-05-23 Seitetsu Kagaku Co Ltd Water-absorptive composition
DE3724709A1 (en) * 1987-07-25 1989-02-02 Stockhausen Chem Fab Gmbh METHOD FOR PRODUCING POLYMERISATES WITH LOW RESIDUAL MONOMER CONTENT
JPH01162504A (en) * 1987-12-21 1989-06-27 Kawasaki Steel Corp Method and device for special rolling with different peripheral speed for metal sheet
WO1991003497A1 (en) * 1989-09-04 1991-03-21 Nippon Shokubai Kagaku Kogyo Co., Ltd. Method of preparing water-absorbent resin
JPH04120111A (en) * 1990-09-07 1992-04-21 Sanyo Chem Ind Ltd Water absorbing resin composition and production thereof
US6740720B2 (en) 2000-08-23 2004-05-25 Stockhausen Gmbh & Co. Kg Water-soluble homopolymers and copolymers having an improved environmental acceptability
KR100626552B1 (en) 2005-04-06 2006-09-22 김수동 Preparation of Polyacrylamide Copolymer Containing Less Residual Monomer and Initiator Residue
JP2006299234A (en) * 2005-02-15 2006-11-02 Nippon Shokubai Co Ltd Water absorbent resin and method for producing the same
JP2009079135A (en) * 2007-09-26 2009-04-16 Daiyanitorikkusu Kk Method for producing water-soluble polymer

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4518770A (en) * 1984-01-30 1985-05-21 Atlantic Richfield Company Process for the preparation of polyhydroxybutadienes
JPS63118375A (en) * 1986-06-04 1988-05-23 Seitetsu Kagaku Co Ltd Water-absorptive composition
DE3724709A1 (en) * 1987-07-25 1989-02-02 Stockhausen Chem Fab Gmbh METHOD FOR PRODUCING POLYMERISATES WITH LOW RESIDUAL MONOMER CONTENT
JPH01162504A (en) * 1987-12-21 1989-06-27 Kawasaki Steel Corp Method and device for special rolling with different peripheral speed for metal sheet
WO1991003497A1 (en) * 1989-09-04 1991-03-21 Nippon Shokubai Kagaku Kogyo Co., Ltd. Method of preparing water-absorbent resin
US5229488A (en) * 1989-09-04 1993-07-20 Nippon Shokubai Kagaku Kogyo Co., Ltd. Method for manufacture of an absorbent resin
JPH04120111A (en) * 1990-09-07 1992-04-21 Sanyo Chem Ind Ltd Water absorbing resin composition and production thereof
US6740720B2 (en) 2000-08-23 2004-05-25 Stockhausen Gmbh & Co. Kg Water-soluble homopolymers and copolymers having an improved environmental acceptability
JP2006299234A (en) * 2005-02-15 2006-11-02 Nippon Shokubai Co Ltd Water absorbent resin and method for producing the same
KR100626552B1 (en) 2005-04-06 2006-09-22 김수동 Preparation of Polyacrylamide Copolymer Containing Less Residual Monomer and Initiator Residue
JP2009079135A (en) * 2007-09-26 2009-04-16 Daiyanitorikkusu Kk Method for producing water-soluble polymer

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