JPS553432A - Drying method of hydrous gel of acrylamide polymer - Google Patents

Drying method of hydrous gel of acrylamide polymer

Info

Publication number
JPS553432A
JPS553432A JP7550278A JP7550278A JPS553432A JP S553432 A JPS553432 A JP S553432A JP 7550278 A JP7550278 A JP 7550278A JP 7550278 A JP7550278 A JP 7550278A JP S553432 A JPS553432 A JP S553432A
Authority
JP
Japan
Prior art keywords
polymer
chrome
dryer
plated
formulas
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
JP7550278A
Other languages
Japanese (ja)
Other versions
JPS615482B2 (en
Inventor
Ryoji Handa
Hisao Otani
Iwao Oshima
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.)
Dia Furotsuku Kk
Mitsubishi Chemical Corp
Original Assignee
Dia Furotsuku Kk
Mitsubishi Rayon Co Ltd
Nitto Chemical Industry 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 Dia Furotsuku Kk, Mitsubishi Rayon Co Ltd, Nitto Chemical Industry Co Ltd filed Critical Dia Furotsuku Kk
Priority to JP7550278A priority Critical patent/JPS553432A/en
Publication of JPS553432A publication Critical patent/JPS553432A/en
Publication of JPS615482B2 publication Critical patent/JPS615482B2/ja
Granted legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To obtain the title polymer useful as a water treatment, scarcely sticking to the interior of a chrome-plated dryer, by drying the polymer in the presence of a polypropylene oxide with hot air under a shearing stress.
CONSTITUTION: Aggregated small hydrous masses of acrylamide polymer gel are dried with hot air in the presence of one or more types of polypropylene oxides of formulas I, II, and III: (R1 is a residue after removal of OH groups from a 2W4C saturated dihydric alcohol; R2 is residue after removal of OH groups from a 3W6C saturated trihydric alcohol; n, n1, n2, n3, n4, and n5 are integers) in a dryer, whose part in contact with the polymer is chrome-plated, under a shearing stress to give the objective dried polymer. The number-average molecular weight of the compounds of formulas I, II, and III is preferably in the range of 500W 5,000.
COPYRIGHT: (C)1980,JPO&Japio
JP7550278A 1978-06-23 1978-06-23 Drying method of hydrous gel of acrylamide polymer Granted JPS553432A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7550278A JPS553432A (en) 1978-06-23 1978-06-23 Drying method of hydrous gel of acrylamide polymer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7550278A JPS553432A (en) 1978-06-23 1978-06-23 Drying method of hydrous gel of acrylamide polymer

Publications (2)

Publication Number Publication Date
JPS553432A true JPS553432A (en) 1980-01-11
JPS615482B2 JPS615482B2 (en) 1986-02-19

Family

ID=13578083

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7550278A Granted JPS553432A (en) 1978-06-23 1978-06-23 Drying method of hydrous gel of acrylamide polymer

Country Status (1)

Country Link
JP (1) JPS553432A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0785223A3 (en) * 1996-01-19 1998-04-08 Clariant GmbH Use of surfactants in drying hydrophilic highly swellable hydrogels
EP1690888A1 (en) * 2005-02-14 2006-08-16 Dai-Ichi Kogyo Seiyaku Co., Ltd. Method of drying a vinyl pyrrolidone type polymer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0785223A3 (en) * 1996-01-19 1998-04-08 Clariant GmbH Use of surfactants in drying hydrophilic highly swellable hydrogels
US5945495A (en) * 1996-01-19 1999-08-31 Basf Corporation Use of surfactants in the drying of hydrophilic highly swellable hydrogels
EP1690888A1 (en) * 2005-02-14 2006-08-16 Dai-Ichi Kogyo Seiyaku Co., Ltd. Method of drying a vinyl pyrrolidone type polymer

Also Published As

Publication number Publication date
JPS615482B2 (en) 1986-02-19

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