GB716216A - Method of and apparatus for use in the melt spinning of ªÏ-amino-carboxylic acids and derivatives thereof - Google Patents
Method of and apparatus for use in the melt spinning of ªÏ-amino-carboxylic acids and derivatives thereofInfo
- Publication number
- GB716216A GB716216A GB9840/52A GB984052A GB716216A GB 716216 A GB716216 A GB 716216A GB 9840/52 A GB9840/52 A GB 9840/52A GB 984052 A GB984052 A GB 984052A GB 716216 A GB716216 A GB 716216A
- Authority
- GB
- United Kingdom
- Prior art keywords
- melt
- vessel
- pipe
- cylinders
- inert gas
- 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
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D1/00—Treatment of filament-forming or like material
- D01D1/10—Filtering or de-aerating the spinning solution or melt
- D01D1/103—De-aerating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Polyamides (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
<PICT:0716216/IV (a)/1> <PICT:0716216/IV (a)/2> In a process for the continuous melt spinning of o -amino-carboxylic acids and their derivatives, for the purpose of removing monomeric material, the melt is allowed to flow by gravity in thin layers over the inner surface of a closed vessel and inner and outer surfaces of a number of co-axial cylinders arranged within the vessel in such a manner that substantially the whole of these surfaces is covered by the melt, and an inert gas is passed through the vessel, the melt being thereafter conducted to the spinning nozzles. As shown, two coaxial cylinders 5 are arranged within a closed vessel 9. The melt is admitted from a pipe 1 to an annular chamber 2 which is connected by a large number of passages 3 to annular nozzles 7 formed between the walls of the cylinders 5 and an intermediate member 6. The melt flows in a film over the surfaces of the cylinders 5 and inner surface of the vessel 9 at the bottom of which it collects and is withdrawn through a pipe 11 and conducted to the spinning nozzles. An inert gas is admitted under a slight super-atmospheric pressure through a pipe 12 and is conducted away with the evaporated monomer through a pipe 10. The oxygen content of the inert gas is less than 0.003 per cent. and the temperature may be 245 DEG C. U.S.A. Specification 2,241,321 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH716216X | 1951-05-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB716216A true GB716216A (en) | 1954-09-29 |
Family
ID=4531131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9840/52A Expired GB716216A (en) | 1951-05-16 | 1952-04-18 | Method of and apparatus for use in the melt spinning of ªÏ-amino-carboxylic acids and derivatives thereof |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE510925A (en) |
| CH (1) | CH305683A (en) |
| DE (1) | DE1066316B (en) |
| FR (1) | FR1059920A (en) |
| GB (1) | GB716216A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3177181A (en) * | 1960-11-14 | 1965-04-06 | Foster Grant Co Inc | Two stage vacuum devolatilization to purify polyamides |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2967923A1 (en) | 2010-11-30 | 2012-06-01 | Corning Inc | ORGANO-METALLIC STRUCTURE USED IN PARTICULAR AS A CATALYST, AS WELL AS ITS MANUFACTURING PROCESS |
-
0
- DE DENDAT1066316D patent/DE1066316B/en active Pending
- BE BE510925D patent/BE510925A/xx unknown
-
1951
- 1951-05-16 CH CH305683D patent/CH305683A/en unknown
-
1952
- 1952-04-08 FR FR1059920D patent/FR1059920A/en not_active Expired
- 1952-04-18 GB GB9840/52A patent/GB716216A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3177181A (en) * | 1960-11-14 | 1965-04-06 | Foster Grant Co Inc | Two stage vacuum devolatilization to purify polyamides |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1066316B (en) | 1959-10-01 |
| CH305683A (en) | 1955-03-15 |
| FR1059920A (en) | 1954-03-29 |
| BE510925A (en) |
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