JPS57143509A - Production of fiber-forming chitin dope - Google Patents
Production of fiber-forming chitin dopeInfo
- Publication number
- JPS57143509A JPS57143509A JP2900181A JP2900181A JPS57143509A JP S57143509 A JPS57143509 A JP S57143509A JP 2900181 A JP2900181 A JP 2900181A JP 2900181 A JP2900181 A JP 2900181A JP S57143509 A JPS57143509 A JP S57143509A
- Authority
- JP
- Japan
- Prior art keywords
- chitin
- acid
- molecular
- weight
- hydrolyzed
- 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
Links
Landscapes
- Artificial Filaments (AREA)
Abstract
PURPOSE: After being hydrolyzed in a proton acid, chitin is dissolved in an aprotonic polar solvent containing a metal halide to prepare the titled dope of equalized molecular weight and high stability.
CONSTITUTION: 2W8pts.wt. of chitin is hydrolyzed in 100pts. of a proton acid such as a lower fatty acid, its halide or mineral acid, e.g., formic acid, at room or lower temperature, preferably under stirring until the viscosity becomes 300W200P. Then, a nonsolvent such as water is added thereto to precipitate low-molecular-weight chitin. The collected low-molecular-weight chitin is dissolved in an aproton polar solvent such as N,N-dimethylacetamide containing 3W8wt% metal halide such as lithium chloride so that the concentration of chitin becomes less than 10wt%.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2900181A JPS57143509A (en) | 1981-02-28 | 1981-02-28 | Production of fiber-forming chitin dope |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2900181A JPS57143509A (en) | 1981-02-28 | 1981-02-28 | Production of fiber-forming chitin dope |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57143509A true JPS57143509A (en) | 1982-09-04 |
Family
ID=12264155
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2900181A Pending JPS57143509A (en) | 1981-02-28 | 1981-02-28 | Production of fiber-forming chitin dope |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57143509A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007002095A (en) * | 2005-06-23 | 2007-01-11 | Dainichiseika Color & Chem Mfg Co Ltd | Method for producing fine particulate chitin materials |
-
1981
- 1981-02-28 JP JP2900181A patent/JPS57143509A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007002095A (en) * | 2005-06-23 | 2007-01-11 | Dainichiseika Color & Chem Mfg Co Ltd | Method for producing fine particulate chitin materials |
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