GB563960A - Improvements in or relating to the production of textile and other products from polyvinyl esters - Google Patents
Improvements in or relating to the production of textile and other products from polyvinyl estersInfo
- Publication number
- GB563960A GB563960A GB1505041A GB1505041A GB563960A GB 563960 A GB563960 A GB 563960A GB 1505041 A GB1505041 A GB 1505041A GB 1505041 A GB1505041 A GB 1505041A GB 563960 A GB563960 A GB 563960A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- acetate
- polyvinyl
- water
- polyvinyl acetate
- 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.)
- Expired
Links
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F6/14—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of unsaturated alcohols, e.g. polyvinyl alcohol, or of their acetals or ketals
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Artificial Filaments (AREA)
Abstract
Artificial filaments, foils and similar articles which swell or dissolve in water are produced by extruding into a setting medium a solution of a polyvinyl ester containing free hydroxyl groups in which the ester group content is between 2 and 12 per cent of the maximum theoretically possible. The setting medium may comprise a water-miscible organic non-solvent for the ester, such as acetone or lower aliphatic ketones or alcohols, and the polyvinyl compound may comprise partially saponified polyvinyl acetate. The solution of polyvinyl ester in cold or hot water may be forced through orifices of 0.05 to 0.08 mm. diameter and the filaments so formed passed through the setting medium for a distance of 6 to 12 feet. After setting the yarn is twisted and wound, but it is preferably first stretched in a steam chamber at 100 DEG C., after which it is allowed to remain on the bobbin for 12 to 24 hours to set. In an example, polyvinyl acetate made by saponifying polyvinyl acetate of 100 per cent acetate content in a medium containing 3 per cent of water and 97 per cent of methyl alcohol at about 50 DEG C. so as to produce a partially saponified polyvinyl acetate containing 11 per cent of the theoretically possible quantity of acetate groups is heated with water until the polyvinyl acetate has dissolved and the methyl alcohol and methyl acetate boiled off. The solution is filtered and spun into acetone at room temperature, the length of immersion being about 10 feet. The yarn produced is immersed in acetone for 12 hours, then stretched to three times its original length while passing through wet steam at 100 DEG C., and finally aged for 24 hours in air. Specifications 482,216 and 563,991 are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1505041A GB563960A (en) | 1942-11-21 | 1942-11-21 | Improvements in or relating to the production of textile and other products from polyvinyl esters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1505041A GB563960A (en) | 1942-11-21 | 1942-11-21 | Improvements in or relating to the production of textile and other products from polyvinyl esters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB563960A true GB563960A (en) | 1944-09-07 |
Family
ID=10052146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1505041A Expired GB563960A (en) | 1942-11-21 | 1942-11-21 | Improvements in or relating to the production of textile and other products from polyvinyl esters |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB563960A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1059371A1 (en) * | 1999-06-09 | 2000-12-13 | Kuraray Co., Ltd. | Polyvinyl alcohol polymer production method and polyvinyl alcohol polymer |
-
1942
- 1942-11-21 GB GB1505041A patent/GB563960A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1059371A1 (en) * | 1999-06-09 | 2000-12-13 | Kuraray Co., Ltd. | Polyvinyl alcohol polymer production method and polyvinyl alcohol polymer |
| US6743859B2 (en) | 1999-06-09 | 2004-06-01 | Kuraray Co., Ltd. | Polyvinyl alcohol polymer production method and polyvinyl alcohol polymer |
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