JPS54120726A - Production of flame-retardant cellulosic fiber - Google Patents
Production of flame-retardant cellulosic fiberInfo
- Publication number
- JPS54120726A JPS54120726A JP2697878A JP2697878A JPS54120726A JP S54120726 A JPS54120726 A JP S54120726A JP 2697878 A JP2697878 A JP 2697878A JP 2697878 A JP2697878 A JP 2697878A JP S54120726 A JPS54120726 A JP S54120726A
- Authority
- JP
- Japan
- Prior art keywords
- polyphosphonate
- spinning
- dope
- flame
- cellulose solution
- 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)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
PURPOSE: A polyphosphonate is admixed to a cellulose solution in dimethylsufoxide and the mixture is wet spun to produce title fibers with good dispersion of the polyphosphonate in high yield.
CONSTITUTION: A polyphosphonate is dispersed in a cellulose solution made by dissolving cellulose in dimethylsulfoxide in the presence of formaldehyde or paraformaldehyde to prepare a uniform, transparent and highly stable spinning dope. Then wet spinning is conducted using the dope to form filament yarns. Even when a polyphosphonate of considerably high polymerization degree is employed, the amount added can be increased with no trouble and the spinning can also be smoothly effected to produce uniform yarns that can give brightly dyed products. The yield of the polyphosphonate used as a flame retarder exceed 90% and usually attains over 95%.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2697878A JPS54120726A (en) | 1978-03-09 | 1978-03-09 | Production of flame-retardant cellulosic fiber |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2697878A JPS54120726A (en) | 1978-03-09 | 1978-03-09 | Production of flame-retardant cellulosic fiber |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54120726A true JPS54120726A (en) | 1979-09-19 |
Family
ID=12208238
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2697878A Pending JPS54120726A (en) | 1978-03-09 | 1978-03-09 | Production of flame-retardant cellulosic fiber |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54120726A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021135705A1 (en) * | 2019-12-31 | 2021-07-08 | 中国纺织科学研究院有限公司 | Cellulose fiber continuous preparation method |
-
1978
- 1978-03-09 JP JP2697878A patent/JPS54120726A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021135705A1 (en) * | 2019-12-31 | 2021-07-08 | 中国纺织科学研究院有限公司 | Cellulose fiber continuous preparation method |
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