GB653757A - Melt-spinning process and apparatus therefor - Google Patents
Melt-spinning process and apparatus thereforInfo
- Publication number
- GB653757A GB653757A GB9948/48A GB994848A GB653757A GB 653757 A GB653757 A GB 653757A GB 9948/48 A GB9948/48 A GB 9948/48A GB 994848 A GB994848 A GB 994848A GB 653757 A GB653757 A GB 653757A
- Authority
- GB
- United Kingdom
- Prior art keywords
- steam
- polymer
- melt
- flake
- polyamide
- 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
- 238000002074 melt spinning Methods 0.000 title 1
- 229920000642 polymer Polymers 0.000 abstract 7
- -1 polytetramethylene Polymers 0.000 abstract 7
- 239000004952 Polyamide Substances 0.000 abstract 6
- 229920002647 polyamide Polymers 0.000 abstract 6
- GVNWZKBFMFUVNX-UHFFFAOYSA-N Adipamide Chemical compound NC(=O)CCCCC(N)=O GVNWZKBFMFUVNX-UHFFFAOYSA-N 0.000 abstract 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 abstract 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 abstract 2
- 239000000155 melt Substances 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- GUOSQNAUYHMCRU-UHFFFAOYSA-N 11-Aminoundecanoic acid Chemical compound NCCCCCCCCCCC(O)=O GUOSQNAUYHMCRU-UHFFFAOYSA-N 0.000 abstract 1
- SLXKOJJOQWFEFD-UHFFFAOYSA-N 6-aminohexanoic acid Chemical compound NCCCCCC(O)=O SLXKOJJOQWFEFD-UHFFFAOYSA-N 0.000 abstract 1
- VWPQCOZMXULHDM-UHFFFAOYSA-N 9-aminononanoic acid Chemical compound NCCCCCCCCC(O)=O VWPQCOZMXULHDM-UHFFFAOYSA-N 0.000 abstract 1
- 229920000305 Nylon 6,10 Polymers 0.000 abstract 1
- 229920002302 Nylon 6,6 Polymers 0.000 abstract 1
- 235000011037 adipic acid Nutrition 0.000 abstract 1
- 239000001361 adipic acid Substances 0.000 abstract 1
- 229960002684 aminocaproic acid Drugs 0.000 abstract 1
- 230000005611 electricity Effects 0.000 abstract 1
- 229920000052 poly(p-xylylene) Polymers 0.000 abstract 1
- 238000009987 spinning Methods 0.000 abstract 1
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
- D01D1/04—Melting filament-forming substances
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/02—Conditioning or physical treatment of the material to be shaped by heating
- B29B13/022—Melting the material to be shaped
-
- 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
- D01D1/06—Feeding liquid to the spinning head
- D01D1/09—Control of pressure, temperature or feeding rate
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Artificial Filaments (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Polyamides (AREA)
Abstract
<PICT:0653757/IV (a)/1> Synthetic linear polyamides are melt-spun by introducing the polyamide and water vapour into a heated space to melt the polyamide and to provide a constant vapour pressure of water, and extruding the polymer. As shown, the polymer in flake form is fed into the melt spinner by means of an open hopper 11 into a preheater 12, heated by a steam jacket 13 or other means. Steam at 10-100 lbs./sq. inch pressure and 115-170 DEG C. is supplied to the jacket at 14 and withdrawn at the bottom of the jacket. At 16 a portion of the steam is bye-passed through a pipe 17 carrying a valve 18 and thence to a chamber 19, where it is at atmospheric pressure. Steam from the chamber 19 passes up through the polymer flake and out into the air at 20, thus blanketing the polymer. After mixing with the steam, the flake passes to a grid melter heated by steam, electricity or other means. The molten polymer is pumped from the pool 22 by the pump 23 and delivered to the spinneret assembly 24. By this means a constant amount of moisture is maintained in the melt resulting in a more uniform yarn. The steam pressure in the chamber may be as high as 30 pounds per square inch, but steam pressures of 7-10 pounds per square inch are satisfactory, the maximum pressure depending on the polyamide to be spun and the type of yarn formed. Polymer flake with a moisture content as high as 6.5 per cent may be used, although flake which has reached equilibrium with atmospheric conditions and contains about 4 per cent moisture is preferred. It is not necessary to dry or condition the polymer before spinning. Suitable polyamides are polyhexamethylene adipamide, polytetramethylene adipamide, polytetramethylene sebacamide, polypentamethylene adipamide, polypentamethylene sebacamide, polyhexamethylene sebacamide, polyhexamethylene glutaramide, polyoctamethylene adipamide, poly-p-xylylene sebacamide, the polyamide from 3,31-diaminodipropyl ether and adipic acid, and polymerized epsilon - aminocaproic acid, 9 - aminononanoic acid and 11-amino-undecanoic acid, and these may be used singly or mixed. Specifications 461,236 and 461,237 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US747252A US2571975A (en) | 1947-05-10 | 1947-05-10 | Melt spinning process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB653757A true GB653757A (en) | 1951-05-23 |
Family
ID=25004290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9948/48A Expired GB653757A (en) | 1947-05-10 | 1948-04-09 | Melt-spinning process and apparatus therefor |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2571975A (en) |
| BE (1) | BE486151A (en) |
| CH (1) | CH273680A (en) |
| DE (1) | DE826615C (en) |
| FR (1) | FR974855A (en) |
| GB (1) | GB653757A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1222200B (en) * | 1957-03-28 | 1966-08-04 | British Nylon Spinners Ltd | Device for melt-spinning polyamides |
| US3324061A (en) * | 1962-01-15 | 1967-06-06 | Minnesota Mining & Mfg | Preparing aqueous solutions of polypyrrolidone |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL156003B (en) * | 1949-09-14 | Nederlanden Staat | DEVICE FOR CALLING A GROUND STATION BY AIRPLANE. | |
| US2904109A (en) * | 1953-03-30 | 1959-09-15 | Ind Rayon Corp | Method for the removal of monomers, etc., from molten polymers |
| US2898628A (en) * | 1953-07-03 | 1959-08-11 | Ici Ltd | Melt-spinning apparatus |
| NL224690A (en) * | 1957-02-08 | |||
| NL225522A (en) * | 1957-03-08 | |||
| DE1055174B (en) * | 1957-03-08 | 1959-04-16 | Bayer Ag | Process for the production of threads or fibers from polyamides |
| GB839210A (en) * | 1957-05-07 | 1960-06-29 | British Celanese | Improvements in or relating to spinning |
| NL235546A (en) * | 1958-01-28 | |||
| NL268474A (en) * | 1960-08-23 | |||
| US3154613A (en) * | 1962-03-29 | 1964-10-27 | Celanese Corp | Spinning filaments from solutions in concentrated sulfuric acid of a polyamide and salt |
| US3271817A (en) * | 1963-05-27 | 1966-09-13 | Maurice S Kanbar | Nylon melt-spinning apparatus |
| US3624193A (en) * | 1969-02-25 | 1971-11-30 | Du Pont | Polyamide filamentmaking process including solid-state polymerization |
| CA1064695A (en) * | 1975-06-04 | 1979-10-23 | Nordson Corporation | Apparatus for melting and dispensing thermoplastic material |
| US4952345A (en) * | 1989-02-10 | 1990-08-28 | E. I. Du Pont De Nemours And Company | Method for controlling polymer viscosity |
| CH688554A5 (en) * | 1994-03-22 | 1997-11-14 | Rhone Poulenc Filtec Ag | Industrial PA 6.6 filaments |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2253176A (en) * | 1938-08-09 | 1941-08-19 | Du Pont | Method and apparatus for production of structures |
| US2303340A (en) * | 1939-05-16 | 1942-12-01 | Celanese Corp | Production of artificial materials |
| BE461923A (en) * | 1940-08-02 | 1900-01-01 |
-
1947
- 1947-05-10 US US747252A patent/US2571975A/en not_active Expired - Lifetime
-
1948
- 1948-04-09 GB GB9948/48A patent/GB653757A/en not_active Expired
- 1948-11-12 FR FR974855D patent/FR974855A/en not_active Expired
- 1948-11-27 CH CH273680D patent/CH273680A/en unknown
- 1948-12-04 BE BE486151A patent/BE486151A/en unknown
- 1948-12-31 DE DEP28744D patent/DE826615C/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1222200B (en) * | 1957-03-28 | 1966-08-04 | British Nylon Spinners Ltd | Device for melt-spinning polyamides |
| US3324061A (en) * | 1962-01-15 | 1967-06-06 | Minnesota Mining & Mfg | Preparing aqueous solutions of polypyrrolidone |
Also Published As
| Publication number | Publication date |
|---|---|
| DE826615C (en) | 1952-01-03 |
| US2571975A (en) | 1951-10-16 |
| CH273680A (en) | 1951-02-28 |
| FR974855A (en) | 1951-02-27 |
| BE486151A (en) | 1951-06-15 |
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