JPS5624430A - Preparation of porous spherical particle of cellulose - Google Patents
Preparation of porous spherical particle of celluloseInfo
- Publication number
- JPS5624430A JPS5624430A JP9863279A JP9863279A JPS5624430A JP S5624430 A JPS5624430 A JP S5624430A JP 9863279 A JP9863279 A JP 9863279A JP 9863279 A JP9863279 A JP 9863279A JP S5624430 A JPS5624430 A JP S5624430A
- Authority
- JP
- Japan
- Prior art keywords
- cellulose
- derived
- aqueous medium
- chlorinated hydrocarbon
- particles
- 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
Links
Landscapes
- Filtering Materials (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
PURPOSE: To prepare the titled particles suitable for a gel filtration material, in high reproducibility, by dissolving a cellulose triacetate derived from crystalline cellulose having a specific polymerization degree in a chlorinated hydrocarbon solvent, dispersing the solution in an aqueous medium, evaporating the solvent, and saponifying the cellulose ester.
CONSTITUTION: (A) A cellulose triacetate derived from cryatalline cellulose having a specific polymerization degree or its mixture with a cellulose triacetate derived from cellulose having crystalline regions and amorphous regions, is dissolved in (B) a mixed solvent composed of (a) a chlorinated hydrocarbon having a boiling point of lower than that of the aqueous medium and (b) pref. ≥6C aliphatic higher alcohol. The solution thus obtained is dispersed in an aqueous medium, and the chlorinated hydrocarbon is evaporated and removed from the resulting droplets. The spherical particles thus obtained are saponified to obtain the objective particles.
EFFECT: The cellulose density and the threshold molecular weight can be adjusted over wide ranges.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9863279A JPS5624430A (en) | 1979-08-03 | 1979-08-03 | Preparation of porous spherical particle of cellulose |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9863279A JPS5624430A (en) | 1979-08-03 | 1979-08-03 | Preparation of porous spherical particle of cellulose |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5624430A true JPS5624430A (en) | 1981-03-09 |
JPS6312099B2 JPS6312099B2 (en) | 1988-03-17 |
Family
ID=14224877
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9863279A Granted JPS5624430A (en) | 1979-08-03 | 1979-08-03 | Preparation of porous spherical particle of cellulose |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5624430A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63112634A (en) * | 1986-10-29 | 1988-05-17 | Kanegafuchi Chem Ind Co Ltd | Uniform polymer particle |
US5015423A (en) * | 1986-10-29 | 1991-05-14 | Kanegafuchi Kagaku Kogyo Kabushiki Kaisha | Method of making uniform polymer particles |
WO2015029790A1 (en) | 2013-09-02 | 2015-03-05 | Jnc株式会社 | Method for producing porous cellulose particles, and porous cellulose particles |
JP2018118917A (en) * | 2017-01-24 | 2018-08-02 | 株式会社ダイセル | Scrubbing agent and skin cleansing composition |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS537759A (en) * | 1976-07-09 | 1978-01-24 | Yoshiaki Motozato | Spherical cellulose particle production method |
-
1979
- 1979-08-03 JP JP9863279A patent/JPS5624430A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS537759A (en) * | 1976-07-09 | 1978-01-24 | Yoshiaki Motozato | Spherical cellulose particle production method |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63112634A (en) * | 1986-10-29 | 1988-05-17 | Kanegafuchi Chem Ind Co Ltd | Uniform polymer particle |
US5015423A (en) * | 1986-10-29 | 1991-05-14 | Kanegafuchi Kagaku Kogyo Kabushiki Kaisha | Method of making uniform polymer particles |
WO2015029790A1 (en) | 2013-09-02 | 2015-03-05 | Jnc株式会社 | Method for producing porous cellulose particles, and porous cellulose particles |
US11685793B2 (en) | 2013-09-02 | 2023-06-27 | Jnc Corporation | Method for producing porous cellulose particles, and porous cellulose particles |
JP2018118917A (en) * | 2017-01-24 | 2018-08-02 | 株式会社ダイセル | Scrubbing agent and skin cleansing composition |
Also Published As
Publication number | Publication date |
---|---|
JPS6312099B2 (en) | 1988-03-17 |
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