US3150223A - Process of drawing yarns of polymers based on acrylonitrile in hot vapors of organic liquids - Google Patents
Process of drawing yarns of polymers based on acrylonitrile in hot vapors of organic liquids Download PDFInfo
- Publication number
- US3150223A US3150223A US65294A US6529460A US3150223A US 3150223 A US3150223 A US 3150223A US 65294 A US65294 A US 65294A US 6529460 A US6529460 A US 6529460A US 3150223 A US3150223 A US 3150223A
- Authority
- US
- United States
- Prior art keywords
- acrylonitrile
- yarns
- polymers based
- vapors
- organic liquids
- 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 - Lifetime
Links
- 238000000034 method Methods 0.000 title claims description 11
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 title claims description 10
- 229920000642 polymer Polymers 0.000 title claims description 9
- 239000007788 liquid Substances 0.000 title claims description 8
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 claims description 12
- 239000002904 solvent Substances 0.000 claims description 9
- PGMYKACGEOXYJE-UHFFFAOYSA-N pentyl acetate Chemical compound CCCCCOC(C)=O PGMYKACGEOXYJE-UHFFFAOYSA-N 0.000 claims description 6
- AMQJEAYHLZJPGS-UHFFFAOYSA-N N-Pentanol Chemical compound CCCCCO AMQJEAYHLZJPGS-UHFFFAOYSA-N 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 229940072049 amyl acetate Drugs 0.000 claims description 4
- 238000009835 boiling Methods 0.000 description 4
- MNWFXJYAOYHMED-UHFFFAOYSA-M heptanoate Chemical compound CCCCCCC([O-])=O MNWFXJYAOYHMED-UHFFFAOYSA-M 0.000 description 3
- 229920002239 polyacrylonitrile Polymers 0.000 description 3
- 238000000578 dry spinning Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000013557 residual solvent Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000002166 wet spinning Methods 0.000 description 2
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- -1 copolyrners Polymers 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229920000578 graft copolymer Polymers 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
- D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
- D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
- D02J1/222—Stretching in a gaseous atmosphere or in a fluid bed
-
- 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
- D01F6/18—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 nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide
-
- 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
- D01F6/28—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F6/38—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising unsaturated nitriles as the major constituent
Definitions
- This invention relates to the production of yarns and the like of polymers based on acrylonitrile and more particularly to a process for drawing (stretching) such yarns and the like.
- polymers based on acrylonitrile used in this specification polymers, copolyrners, grafted polymers and their mixtures containing from 85% to 100% of acrylonitrile and up to of one or more copolymerizable ethylenic compounds.
- yards is meant an assembly of filaments obtained by dry or wet spinning, which assembly may be small in the case of continuous filaments and larger in the case of tows of high count intended to be cut or cracked to obtain discontinuous fibers.
- a process for the production of yarns and the like of polymers based on acrylonitrile which comprises drawing such yarns or the like, while free from contained solvent, in a medium comprising the vapors of amyl alcohol, amyl acetate, and cyclohexanone.
- the vapors are maintained at a temperature close to, and usually slightly below, the boiling point of the liquid, so that the drawing is effected more conveniently in the vapors of the boiling liquid.
- the process just defined it is possible to draw the yarns or the like to a higher degree than has hitherto been practicable, the maximum drawing at which breakage of the yarn occurs being considerably higher than in the drawing processes hitherto known. Moreover, for a given degree of drawing, the tenacity is higher after drawing according to the invention than after drawing by the previously known methods.
- the process of the invention may be applied to the drawing of yarns obtained by dry spinning or by wet spinning.
- Example I A polyacrylonitrile yarn is washed with water to eliminate the residual solvent.
- the limit to which this yarn may be drawn in boiling water or steam at C. is at most a drawing to 9X.
- the limit to which the yarn may be drawn, i.e., at which breakage of the yarn occurs, is 16.5
- Example II A yarn obtained by spinning a mixture of 85% by Weight of polyacrylonitrile and 15% by weight of polyvinyl acetate is freed from its solvent and then drawn in a zone containing amyl alcohol vapors at 131 C. It can be drawn to a degree of ll.4 Whereas the same yarn can be drawn in steam only to a degree of 9X.
- Example 111 A polyacrylonitrile yarn freed from its solvent is drawn 7X in cyclohexanone vapor at 153 C. lit then has a dry tenacity 20% higher and an elongation 18% higher than the same yarn drawn to the same degree in steam.
- a tow of continuous copolymer filaments consisting of 92% by weight of acrylonitrile and 8% by weight of methyl methacrylate is freed from its residual solvent and then drawn in saturated amyl acetate vapor at C. It can thus be drawn Without difliculty to an extent 34% higher without breakage than is possible when the yarn is drawn in steam.
- a process for the production of yarns of polymers based on acrylonitrile which comprises drawing such yarns, While free from contained solvent, in a hot medium comprising the vapors of an organic liquid selected from the class consisting of amyl alcohol, amyl acetate and cyclohexanone.
- a process for the production of yarns of polymers based on acrylonitrile which comprises drawing such yarns, while free from contained solvent, in a hot medium comprising the vapors of an organic liquid selected from the class consisting of amyl alcohol, amyl acetate and cyclohexanone, the said vapors being maintained at a temperature substantially that of the boiling point of the liquid of which they are the vapors.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Artificial Filaments (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR809190A FR1248484A (fr) | 1959-11-03 | 1959-11-03 | Perfectionnement à la fabrication des fils en polymères à base d'acrylonitrile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3150223A true US3150223A (en) | 1964-09-22 |
Family
ID=8720846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US65294A Expired - Lifetime US3150223A (en) | 1959-11-03 | 1960-10-27 | Process of drawing yarns of polymers based on acrylonitrile in hot vapors of organic liquids |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3150223A (it) |
| CH (1) | CH389154A (it) |
| DE (1) | DE1209241B (it) |
| ES (1) | ES262136A1 (it) |
| FR (1) | FR1248484A (it) |
| GB (1) | GB907673A (it) |
| NL (2) | NL125916C (it) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3426117A (en) * | 1966-12-14 | 1969-02-04 | Japan Exlan Co Ltd | Method for treating acrylic composite fiber |
| US4013753A (en) * | 1973-10-09 | 1977-03-22 | Bayer Aktiengesellschaft | Process for the production of spontaneously crimping polyacrylonitrile composite fibres with improved crimp properties |
| US11555964B1 (en) | 2021-06-30 | 2023-01-17 | Globalfoundries U.S. Inc. | Optical device with low-loss thermally tunable closed-curve optical waveguide |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2476069A (en) * | 1947-02-08 | 1949-07-12 | Wingfoot Corp | Delustering copolymer filaments |
| US2499477A (en) * | 1945-06-07 | 1950-03-07 | Union Carbide & Carbon Corp | Vinyl resin textile article |
| US2768057A (en) * | 1950-02-08 | 1956-10-23 | Phrix Werke Ag | Drawing of organic high polymers |
-
0
- NL NL247497D patent/NL247497A/xx unknown
- NL NL125916D patent/NL125916C/xx active
-
1959
- 1959-11-03 FR FR809190A patent/FR1248484A/fr not_active Expired
-
1960
- 1960-10-27 US US65294A patent/US3150223A/en not_active Expired - Lifetime
- 1960-10-27 CH CH1202460A patent/CH389154A/fr unknown
- 1960-10-27 GB GB37013/60A patent/GB907673A/en not_active Expired
- 1960-10-31 DE DEC22645A patent/DE1209241B/de active Pending
- 1960-11-02 ES ES0262136A patent/ES262136A1/es not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2499477A (en) * | 1945-06-07 | 1950-03-07 | Union Carbide & Carbon Corp | Vinyl resin textile article |
| US2476069A (en) * | 1947-02-08 | 1949-07-12 | Wingfoot Corp | Delustering copolymer filaments |
| US2768057A (en) * | 1950-02-08 | 1956-10-23 | Phrix Werke Ag | Drawing of organic high polymers |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3426117A (en) * | 1966-12-14 | 1969-02-04 | Japan Exlan Co Ltd | Method for treating acrylic composite fiber |
| US4013753A (en) * | 1973-10-09 | 1977-03-22 | Bayer Aktiengesellschaft | Process for the production of spontaneously crimping polyacrylonitrile composite fibres with improved crimp properties |
| US11555964B1 (en) | 2021-06-30 | 2023-01-17 | Globalfoundries U.S. Inc. | Optical device with low-loss thermally tunable closed-curve optical waveguide |
Also Published As
| Publication number | Publication date |
|---|---|
| ES262136A1 (es) | 1960-12-16 |
| DE1209241B (de) | 1966-01-20 |
| NL125916C (it) | |
| GB907673A (en) | 1962-10-10 |
| FR1248484A (fr) | 1960-12-16 |
| CH389154A (fr) | 1965-03-15 |
| NL247497A (it) |
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