JPS57212231A - Preparation of cellulose powder having particular shape - Google Patents

Preparation of cellulose powder having particular shape

Info

Publication number
JPS57212231A
JPS57212231A JP56096635A JP9663581A JPS57212231A JP S57212231 A JPS57212231 A JP S57212231A JP 56096635 A JP56096635 A JP 56096635A JP 9663581 A JP9663581 A JP 9663581A JP S57212231 A JPS57212231 A JP S57212231A
Authority
JP
Japan
Prior art keywords
product
acid
raw material
cellulose powder
concentration
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
JP56096635A
Other languages
Japanese (ja)
Other versions
JPH037693B2 (en
Inventor
Kimito Miyamoto
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.)
Asahi Kasei Corp
Asahi Chemical Industry Co Ltd
Original Assignee
Asahi Chemical Industry Co Ltd
Asahi Kasei Kogyo KK
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 Asahi Chemical Industry Co Ltd, Asahi Kasei Kogyo KK filed Critical Asahi Chemical Industry Co Ltd
Priority to JP56096635A priority Critical patent/JPS57212231A/en
Publication of JPS57212231A publication Critical patent/JPS57212231A/en
Publication of JPH037693B2 publication Critical patent/JPH037693B2/ja
Granted legal-status Critical Current

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  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

PURPOSE: To obtain the titled cellulose powder having a particular short rod form with restricted length and diameter, and suitable for the tabletting of drug, by hydrolyzing a specific cellulosic raw material with a mineral acid, and cutting the depolymerized product finely in a liquid.
CONSTITUTION: A cellulosic raw material having cellulose fiber diameter of 2W20μ, preferably 5W10μ (preferably dissolving wood pulp) is hydrolyzed with a mineral acid preferably hydrochloric acid, sulfuric acid and/or phosphoric acid to obtain a depolymerized product having an average polymerization degree of about 100W300. The product is disintegrated in a liquid until the product is divided to pass an about 60 mesh sieve (preferably the depolymerized product is dispersed in water or an aqueous solution at a concentration of 1W20wt%, and agitated to effect the size reduction). The hydrolysis is preferably carried out at an acid concentration of 0.01W1N and at ≥90°C.
COPYRIGHT: (C)1982,JPO&Japio
JP56096635A 1981-06-24 1981-06-24 Preparation of cellulose powder having particular shape Granted JPS57212231A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56096635A JPS57212231A (en) 1981-06-24 1981-06-24 Preparation of cellulose powder having particular shape

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56096635A JPS57212231A (en) 1981-06-24 1981-06-24 Preparation of cellulose powder having particular shape

Publications (2)

Publication Number Publication Date
JPS57212231A true JPS57212231A (en) 1982-12-27
JPH037693B2 JPH037693B2 (en) 1991-02-04

Family

ID=14170286

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56096635A Granted JPS57212231A (en) 1981-06-24 1981-06-24 Preparation of cellulose powder having particular shape

Country Status (1)

Country Link
JP (1) JPS57212231A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60262828A (en) * 1984-06-08 1985-12-26 Kao Corp Rodlike fine polymer powder and its dispersion in nonaqueous medium
WO2013180249A1 (en) 2012-05-31 2013-12-05 旭化成ケミカルズ株式会社 Cellulose powder
US9200148B2 (en) 2010-12-15 2015-12-01 3M Innovative Properties Company Controlled degradation fibers
US9592199B2 (en) 2012-05-31 2017-03-14 Asahi Kasei Chemicals Corporation Cellulose powder
WO2020202598A1 (en) * 2019-04-02 2020-10-08 旭化成株式会社 Cellulose powder, tablet, and tablet production method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60262828A (en) * 1984-06-08 1985-12-26 Kao Corp Rodlike fine polymer powder and its dispersion in nonaqueous medium
US9200148B2 (en) 2010-12-15 2015-12-01 3M Innovative Properties Company Controlled degradation fibers
WO2013180249A1 (en) 2012-05-31 2013-12-05 旭化成ケミカルズ株式会社 Cellulose powder
US9592199B2 (en) 2012-05-31 2017-03-14 Asahi Kasei Chemicals Corporation Cellulose powder
US10662258B2 (en) 2012-05-31 2020-05-26 Asahi Kasei Chemicals Corporation Cellulose powder
US11390690B2 (en) 2012-05-31 2022-07-19 Asahi Kasei Chemicals Corporation Cellulose powder
WO2020202598A1 (en) * 2019-04-02 2020-10-08 旭化成株式会社 Cellulose powder, tablet, and tablet production method
JP2020189885A (en) * 2019-04-02 2020-11-26 旭化成株式会社 Methods for reducing electrostatic amounts of granules
JPWO2020202598A1 (en) * 2019-04-02 2021-04-30 旭化成株式会社 How to improve the storage stability of tablets

Also Published As

Publication number Publication date
JPH037693B2 (en) 1991-02-04

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