JPS5474855A - Preparation of finely divided soluble cellulose derivative - Google Patents

Preparation of finely divided soluble cellulose derivative

Info

Publication number
JPS5474855A
JPS5474855A JP14367377A JP14367377A JPS5474855A JP S5474855 A JPS5474855 A JP S5474855A JP 14367377 A JP14367377 A JP 14367377A JP 14367377 A JP14367377 A JP 14367377A JP S5474855 A JPS5474855 A JP S5474855A
Authority
JP
Japan
Prior art keywords
soluble cellulose
cellulose
cellulose derivative
finely divided
soluble
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
JP14367377A
Other languages
Japanese (ja)
Inventor
Tatsuo Asogawa
Maki Yamamoto
Hidekazu Satake
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.)
Takeda Pharmaceutical Co Ltd
Original Assignee
Takeda Chemical Industries 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 Takeda Chemical Industries Ltd filed Critical Takeda Chemical Industries Ltd
Priority to JP14367377A priority Critical patent/JPS5474855A/en
Publication of JPS5474855A publication Critical patent/JPS5474855A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To obtain a finely divided soluble cellulose direvative of almost spherical particle shape useful as a binder for tablet preparation, having a high internal porosity, a slight variation in particle size, by spray drying a soluble celulose derivaive solution.
CONSTITUTION: A 5W15 wt.% aqueous solution of a soluble cellulose derivative is dried by spraying in hot air. A usual disc type or two-fluid nozzle type spray dryer may be used, and the number of revolutions is preferably 8,000W40,000 rpm for the former dryer. Methyl cellulose, corboxymethyl cellulose, hydroxypropyl cellulose, etc. may be cited as the soluble cellulose derivative.
COPYRIGHT: (C)1979,JPO&Japio
JP14367377A 1977-11-29 1977-11-29 Preparation of finely divided soluble cellulose derivative Pending JPS5474855A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14367377A JPS5474855A (en) 1977-11-29 1977-11-29 Preparation of finely divided soluble cellulose derivative

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14367377A JPS5474855A (en) 1977-11-29 1977-11-29 Preparation of finely divided soluble cellulose derivative

Publications (1)

Publication Number Publication Date
JPS5474855A true JPS5474855A (en) 1979-06-15

Family

ID=15344267

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14367377A Pending JPS5474855A (en) 1977-11-29 1977-11-29 Preparation of finely divided soluble cellulose derivative

Country Status (1)

Country Link
JP (1) JPS5474855A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0223590A2 (en) * 1985-11-18 1987-05-27 The Dow Chemical Company Substained release compositions comprising hydroxypropyl cellulose ethers
JPH02105A (en) * 1987-04-24 1990-01-05 Dai Ichi Seiyaku Co Ltd Sustained release tablet
EP0460609A1 (en) * 1990-06-07 1991-12-11 Nisshinbo Industries, Inc. Process for producing fine cellulose powder
US6320043B1 (en) 1997-01-21 2001-11-20 Wolf Walsrode Ag Process for preparing fine-particle polysaccharide derivatives
JP2003252902A (en) * 2002-03-04 2003-09-10 Shin Etsu Chem Co Ltd Lowly substituted cellulose ether powder and its manufacturing method
EP1136458A3 (en) * 2000-03-18 2004-01-07 Wolff Walsrode AG Use in building material mixtures of polysaccharides or their derivatives, produced after gelation and hot vapour mill-drying by gas or water vapour drying,
US6872820B2 (en) 1998-12-23 2005-03-29 Wolff Walsrode Ag Finely divided polysaccharide derivatives

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0223590A2 (en) * 1985-11-18 1987-05-27 The Dow Chemical Company Substained release compositions comprising hydroxypropyl cellulose ethers
JPH02105A (en) * 1987-04-24 1990-01-05 Dai Ichi Seiyaku Co Ltd Sustained release tablet
EP0460609A1 (en) * 1990-06-07 1991-12-11 Nisshinbo Industries, Inc. Process for producing fine cellulose powder
US6320043B1 (en) 1997-01-21 2001-11-20 Wolf Walsrode Ag Process for preparing fine-particle polysaccharide derivatives
US6872820B2 (en) 1998-12-23 2005-03-29 Wolff Walsrode Ag Finely divided polysaccharide derivatives
EP1136458A3 (en) * 2000-03-18 2004-01-07 Wolff Walsrode AG Use in building material mixtures of polysaccharides or their derivatives, produced after gelation and hot vapour mill-drying by gas or water vapour drying,
US6943247B2 (en) 2000-03-18 2005-09-13 Wolff Walsrode Ag Building material compositions
JP2003252902A (en) * 2002-03-04 2003-09-10 Shin Etsu Chem Co Ltd Lowly substituted cellulose ether powder and its manufacturing method
EP1342733A1 (en) * 2002-03-04 2003-09-10 Shin-Etsu Chemical Co., Ltd. Low-substituted cellulose ether powder and production process thereof

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