JPS5545717A - Pulverized sodium polyacrylate and its preparation - Google Patents

Pulverized sodium polyacrylate and its preparation

Info

Publication number
JPS5545717A
JPS5545717A JP11806078A JP11806078A JPS5545717A JP S5545717 A JPS5545717 A JP S5545717A JP 11806078 A JP11806078 A JP 11806078A JP 11806078 A JP11806078 A JP 11806078A JP S5545717 A JPS5545717 A JP S5545717A
Authority
JP
Japan
Prior art keywords
sodium polyacrylate
pref
pulverized sodium
pulverized
preparation
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
JP11806078A
Other languages
Japanese (ja)
Other versions
JPS6229448B2 (en
Inventor
Masayuki Iwasaki
Fumihiro Sato
Hiroshi Ninomiya
Koichi Yoshida
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.)
Nippon Kayaku Co Ltd
Original Assignee
Nippon Kayaku 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 Nippon Kayaku Co Ltd filed Critical Nippon Kayaku Co Ltd
Priority to JP11806078A priority Critical patent/JPS5545717A/en
Publication of JPS5545717A publication Critical patent/JPS5545717A/en
Publication of JPS6229448B2 publication Critical patent/JPS6229448B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Processes Of Treating Macromolecular Substances (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

PURPOSE: To obtain a high-purity pulverized sodium polyacrylate free from increase of eligomers and intrinsic viscosity drop, useful for medical ointments, etc., by pulverizing sodium polyacrylate under a freezed state.
CONSTITUTION: The objective pulverized sodium polyacrylate can be obtained by finaly grinding sodium polyacrylate having an average particle size of 7W0.2mm (pref. 3W0.3mm) under a freezed state, e.g., at ≤-10°C (pref. ≤-20°C). According to the above procedure, use of a polyacrylic acid as a raw material containing ≤5wt% (pref. ≤4wt%) of oligomers gives a pulverized sodium polyacrylate having an average particle size ≤80μm and an aligomer content ≤5wt%.
COPYRIGHT: (C)1980,JPO&Japio
JP11806078A 1978-09-27 1978-09-27 Pulverized sodium polyacrylate and its preparation Granted JPS5545717A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11806078A JPS5545717A (en) 1978-09-27 1978-09-27 Pulverized sodium polyacrylate and its preparation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11806078A JPS5545717A (en) 1978-09-27 1978-09-27 Pulverized sodium polyacrylate and its preparation

Publications (2)

Publication Number Publication Date
JPS5545717A true JPS5545717A (en) 1980-03-31
JPS6229448B2 JPS6229448B2 (en) 1987-06-26

Family

ID=14727015

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11806078A Granted JPS5545717A (en) 1978-09-27 1978-09-27 Pulverized sodium polyacrylate and its preparation

Country Status (1)

Country Link
JP (1) JPS5545717A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58123190U (en) * 1982-02-15 1983-08-22 セイキ住工株式会社 roll-up door
JPS58123189U (en) * 1982-02-15 1983-08-22 セイキ住工株式会社 roll-up door
JPS5980093U (en) * 1982-11-19 1984-05-30 株式会社日本アルミ roll blind
JPS61172985A (en) * 1985-01-28 1986-08-04 昭和アルミニウム株式会社 Changer for ornament or function in window and wall, etc. ofbuilding
JPS6274906A (en) * 1985-09-30 1987-04-06 Agency Of Ind Science & Technol Production of molding from metal salt of polyacrylic acid
US4826638A (en) * 1986-07-15 1989-05-02 Rehau Ag+Co. Process of using hardened elastomer filler for elastomer material
US4917834A (en) * 1988-11-16 1990-04-17 General Technology Applications, Inc. Method for forming homogeneous blends of particulate materials
JP2002348162A (en) * 2001-05-30 2002-12-04 Taiheiyo Cement Corp Manufacturing method of powdery cement dispersant

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58123190U (en) * 1982-02-15 1983-08-22 セイキ住工株式会社 roll-up door
JPS58123189U (en) * 1982-02-15 1983-08-22 セイキ住工株式会社 roll-up door
JPS642933Y2 (en) * 1982-02-15 1989-01-25
JPS642932Y2 (en) * 1982-02-15 1989-01-25
JPS5980093U (en) * 1982-11-19 1984-05-30 株式会社日本アルミ roll blind
JPS61172985A (en) * 1985-01-28 1986-08-04 昭和アルミニウム株式会社 Changer for ornament or function in window and wall, etc. ofbuilding
JPS6274906A (en) * 1985-09-30 1987-04-06 Agency Of Ind Science & Technol Production of molding from metal salt of polyacrylic acid
JPH0159091B2 (en) * 1985-09-30 1989-12-14 Kogyo Gijutsuin
US4826638A (en) * 1986-07-15 1989-05-02 Rehau Ag+Co. Process of using hardened elastomer filler for elastomer material
US4917834A (en) * 1988-11-16 1990-04-17 General Technology Applications, Inc. Method for forming homogeneous blends of particulate materials
JP2002348162A (en) * 2001-05-30 2002-12-04 Taiheiyo Cement Corp Manufacturing method of powdery cement dispersant
JP4608132B2 (en) * 2001-05-30 2011-01-05 太平洋セメント株式会社 Method for producing powdered cement dispersant

Also Published As

Publication number Publication date
JPS6229448B2 (en) 1987-06-26

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