CN1389604A - Production process of aromatic polysulfone amide fiber - Google Patents
Production process of aromatic polysulfone amide fiber Download PDFInfo
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- CN1389604A CN1389604A CN 02136060 CN02136060A CN1389604A CN 1389604 A CN1389604 A CN 1389604A CN 02136060 CN02136060 CN 02136060 CN 02136060 A CN02136060 A CN 02136060A CN 1389604 A CN1389604 A CN 1389604A
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- manufacture method
- diamino
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- dds
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- 239000000835 fiber Substances 0.000 title claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 125000003118 aryl group Chemical group 0.000 title claims description 13
- 150000001408 amides Chemical class 0.000 title description 3
- 229920002492 poly(sulfone) Polymers 0.000 title description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000002360 preparation method Methods 0.000 claims abstract description 8
- 230000015271 coagulation Effects 0.000 claims abstract description 7
- 238000005345 coagulation Methods 0.000 claims abstract description 7
- 238000004804 winding Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 19
- 238000009987 spinning Methods 0.000 claims description 18
- 239000002002 slurry Substances 0.000 claims description 12
- MQJKPEGWNLWLTK-UHFFFAOYSA-N Dapsone Chemical compound C1=CC(N)=CC=C1S(=O)(=O)C1=CC=C(N)C=C1 MQJKPEGWNLWLTK-UHFFFAOYSA-N 0.000 claims description 9
- 238000002166 wet spinning Methods 0.000 claims description 7
- 230000001112 coagulating effect Effects 0.000 claims description 5
- 150000007529 inorganic bases Chemical class 0.000 claims description 5
- 125000002091 cationic group Chemical group 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- LJGHYPLBDBRCRZ-UHFFFAOYSA-N 3-(3-aminophenyl)sulfonylaniline Chemical compound NC1=CC=CC(S(=O)(=O)C=2C=C(N)C=CC=2)=C1 LJGHYPLBDBRCRZ-UHFFFAOYSA-N 0.000 claims description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 3
- 239000000292 calcium oxide Substances 0.000 claims description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 3
- WFKAJVHLWXSISD-UHFFFAOYSA-N isobutyramide Chemical compound CC(C)C(N)=O WFKAJVHLWXSISD-UHFFFAOYSA-N 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical group [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 2
- 239000000920 calcium hydroxide Substances 0.000 claims description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 2
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 2
- 238000012805 post-processing Methods 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract description 7
- 229910000041 hydrogen chloride Inorganic materials 0.000 abstract description 7
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 abstract description 7
- 229920000642 polymer Polymers 0.000 abstract description 5
- 238000009736 wetting Methods 0.000 abstract 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 abstract 1
- 239000003513 alkali Substances 0.000 abstract 1
- 239000001110 calcium chloride Substances 0.000 abstract 1
- 229910001628 calcium chloride Inorganic materials 0.000 abstract 1
- 235000011148 calcium chloride Nutrition 0.000 abstract 1
- 150000001768 cations Chemical class 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 150000003457 sulfones Chemical class 0.000 description 14
- 229920002994 synthetic fiber Polymers 0.000 description 14
- 229920000784 Nomex Polymers 0.000 description 11
- 239000004763 nomex Substances 0.000 description 11
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical group CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 9
- 239000000463 material Substances 0.000 description 7
- 239000000126 substance Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 230000014759 maintenance of location Effects 0.000 description 4
- 239000004760 aramid Substances 0.000 description 3
- 229920003235 aromatic polyamide Polymers 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 238000006068 polycondensation reaction Methods 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- WZCQRUWWHSTZEM-UHFFFAOYSA-N 1,3-phenylenediamine Chemical compound NC1=CC=CC(N)=C1 WZCQRUWWHSTZEM-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000002783 friction material Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 2
- 229940018564 m-phenylenediamine Drugs 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- VUTBELPREDJDDH-UHFFFAOYSA-N 4-amino-5-hydroxymethyl-2-methylpyrimidine Chemical compound CC1=NC=C(CO)C(N)=N1 VUTBELPREDJDDH-UHFFFAOYSA-N 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004734 Polyphenylene sulfide Substances 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- FDQSRULYDNDXQB-UHFFFAOYSA-N benzene-1,3-dicarbonyl chloride Chemical group ClC(=O)C1=CC=CC(C(Cl)=O)=C1 FDQSRULYDNDXQB-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- 239000008393 encapsulating agent Substances 0.000 description 1
- 238000007380 fibre production Methods 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 230000005251 gamma ray Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 150000003949 imides Chemical class 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920000069 polyphenylene sulfide Polymers 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- -1 terephthalamide amine Chemical class 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Artificial Filaments (AREA)
Abstract
There is a manufacturing method of aroma family PSA fibre in the chemistry fibre manufacturing which includes three steps: filature serosity preparation, wetting filature and post treatemnt. The serosity preparation process is to melt 4.4' DDS and 3.3' DDS in the DMA, to cool it to -20--5 deg.C, to add TPC whose mol is equal to DDS and to form filature serosity having 10%-20% polymer. The hydrogen chloride which is produced in the preparation process is to correct with abio-alkali. Coagulation bath compose and extending bath composes in the wetting filature are DMA, CaCl2 and water. Extending bath pulls 1-3 times in the condition of 30-100 deg.C, watering in the condition of 50-70 deg.C, drying in the condition of 200-500 deg.c, the hot tube pulls 1-2 times in the condition of 250-450 deg.C, oiling cation type oil and winding to make up it.
Description
1. technical field
The present invention relates to a kind of high temperature resistant manufacture method of closing fibre-aromatic polysulfonamides fibre in the chemical fibre manufacturing.
2. background technology
Aromatic polysulfonamides fibre trade name virtue sulfone synthetic fibre is a kind of heat resistance fiber of using based on industry.Heat resistance fiber typically refers to and can use for a long time more than 180 ℃, but or the fiber that moment uses under higher temperature.On behalf of kind, heat resistance fiber aromatic polyamide fibre, aromatic polysulfonamides fibre, aromatic polyamide imide fiber, aromatic polyimide fibre, polyphenylene sulfide fibre, polyetheretherketonefiber fiber, pyramine fiber etc. are arranged.At present the most representative with the aromatic polyamide fibre Nomex of U.S. DuPont company.The polymer materials of Nomex is m-phthaloyl chloride and m-phenylene diamine (MPD).
Nomex compares with fragrant sulfone synthetic fibre, and following deficiency is arranged.(1) heat resistance and heat endurance are lower.Nomex is respectively 60%～65% and 40%～45% at the strength retention of 250 ℃ and 300 ℃, goes to pot at 350 ℃; And reaching 70% and 50%, 350 ℃, the strength retention of fragrant sulfone synthetic fibre when 250 ℃ and 300 ℃ still keep 38% brute force.Strength retention is 78% and 60% Nomex handles 100h in 250 ℃ and 300 ℃ of hot-airs after; Virtue sulfone synthetic fibre then is 90% and 80%.(2) poor dimensional stability under the high temperature, its boiling water shrinkage are 3%, and the shrinkage factor in 300 ℃ of hot-airs reaches 8%; The shrinkage factor of fragrant sulfone synthetic fibre under above-mentioned two kinds of conditions then is respectively 0.5%1% and 2%.(3) anti-flammability is lower than fragrant sulfone synthetic fibre.The LOI value of Nomex is 28, and fragrant sulfone synthetic fibre then is 33.
The open report of virtue sulfone synthetic fibre production method is few, and we find the pertinent literature that has only the former Soviet Union of reporting more at present.
The manufacture method of the fragrant sulfone synthetic fibre that the former Soviet Union openly reports mainly contains following two pieces.(1) mentions the preparation of aromatic polysulfonamides fibre in the article of former Soviet Union's " chemical fibre " magazine (1966,1,22～25 are entitled as " the solvent spinning forming process of polysulfonamides fibre ").
Raw material: aromatic polysulfones acid amides
Prepare with the laboratory micro device.
Technology: polymer solvent is dimethyl formamide (DMF);
Solution concentration 22%;
20 ± 1 ℃ of coagulation bath temperatures;
Spinning speed 1.0m/mm;
Spinnerets hole count * aperture 100 * 0.08mm;
Spinneret draft 20%;
Spin new silk at coagulating bath 30s residence time;
Water, monohydric alcohol, dihydroxylic alcohols and trihydroxylic alcohol are adopted in coagulating bath, and they and dimethyl formyl
The mixture of amine.(2) former Soviet Union's " chemical fibre " magazine (1971,6,38～40 be entitled as " the producing of fiber that with the aromatic polysulfonamides is base ") mention the preparation of aromatic polysulfonamides fibre in the article: adopt the low-temperature polycondensation method to prepare polymer, polymer solvent adopts dimethylacetylamide (DMAc), the content of spinning solution polymer is 15%, prepare fiber by wet spinning, spinning coagulation bath adopts dimethyl formamide and 5%LiCl.
Find no the report that closes suitability for industrialized production virtue sulfone synthetic fibre.
3. summary of the invention
The objective of the invention is to set up a kind of technology rationally, the production process compliance with environmental protection requirements, can produce the manufacture method of the aromatic polysulfonamides fibre of high quality of products.
The manufacture method of the aromatic polysulfonamides fibre that the present invention proposes comprises the spinning slurry preparation, wet spinning, three steps of post processing, promptly with paraphthaloyl chloride and diamino-diphenyl sulfone (4,4 '-diamino-diphenyl sulfone and 3,3 '-diamino-diphenyl sulfone) is raw material, make them in polarity amide solvent-dimethylacetylamide, carry out polycondensation reaction, and in the adding inorganic base and byproduct hydrogen chloride, make condensate content and be 10%～20% spinning slurry, the slurries that make are carried out wet spinning, thereupon washing, dry, aromatic polysulfonamides fibre is made in hot-stretch.
The feature of spinning slurry preparation process is as follows: with 4,4 '-diamino-diphenyl sulfone (4,4 '-DDS) 50%～95% and 3,3 '-diamino-diphenyl sulfone (3,3 '-DDS) 5%～50% (being mass percent) is dissolved in the dimethylacetylamide (DMAc), is cooled to-20～5 ℃, add again and the equimolar paraphthaloyl chloride of diamino-diphenyl sulfone (TPC), make condensate content and be 10%～20% spinning slurry.When adding TPC, should control adding speed, make reaction temperature be no more than 50 ℃.Meeting produces byproduct hydrogen chloride in the polymerisation, can add with the equimolar inorganic base of diamino-diphenyl sulfone hydrogen chloride is neutralized, and generates neutral inorganic salts and water.Above-mentioned inorganic base is calcium hydroxide or calcium oxide, and the time of adding is: after TPC all adds continuation reaction 0.5～1h.
Wet spinning and last handling process are as follows.On the conventional wet spinning equipment, above-mentioned spinning slurry is filtered, sprays into coagulating tank from spinning head through measuring pump metering, filter.Coagulation bath composition is: DMAc40%～70%, CaCl
20～10%, add water to 100% (being mass percent).Enter stretching bath after being frozen into silk, stretch bath consists of: DMAc40%～60%, CaCl
20%～10%, add water to 100% (being mass percent); In stretch bath, stretch 1～3 times under 30～100 ℃ of conditions; Under 50～70 ℃ of conditions, wash subsequently, and under 200～250 ℃ of conditions dried, again through 1～2 times of 250～450 ℃ hot channel stretching, oil and winding shaping with cationic finish at last, the rate of oiling is 0.2%～0.8%.
Advantage of the present invention is that technology is relatively reasonable, can utilize existing spinning equipment, and the hydrogen chloride that produces in the production in time is neutralized, compliance with environmental protection requirements, and the many quality of the polysulphonamide fiber that makes are better than Nomex.
4. the specific embodiment
Get 3,3 '-DDS 7.542kg, 4,4 '-DDS 22.624kg puts into the polymeric kettle that 375L DMAc is housed, and is stirred to dissolving fully.The dissolving back is cooled to-5 ℃ with chilled water with solution in the still, slowly adds TPC24.664kg, adds the fashionable temperature in the kettle that makes and is no more than 50 ℃.Remove chilled water after TPC adds, continue reaction 0.5h, add 6.813kgCaO again, with in and the accessory substance HCl that generates in the polycondensation reaction, stir and HCl and CaO neutralized fully generate CaCl
2And water.CaCl
2Needn't separate out, it is dissolvable in water among the DMAc, and can improve polymeric solubility property, obtains poly-diamino-diphenyl sulfone paraphenylene terephthalamide amine content and be 13% spinning slurry.
Spinning on the conventional wet spinning equipment.With above-mentioned slurries vacuum defoamation, and be warming up to 70 ℃, through measuring pump metering, after filter filtered, slurries were that 0.07mm, hole count are that the spinning head in 1000 holes is extruded by the aperture, enter coagulating bath.Coagulation bath composition is: DMAc60%, CaCl
23%, H
2037% (being mass percent); Coagulation bath temperature is 10～15 ℃, and strand is drawn with the speed of 3m/min.Strand stretches 2.5 times in 90 ℃ of plasticization drawings are bathed then.What plasticization drawing was bathed consists of: DMAc40%, CaCl
22%, H
2O58% (being mass percent).60 ℃ of washings down, dry under 250 ℃ of conditions then, use 1.1 times of 400 ℃ of hot channel stretchings again.Oil with cationic finish at last, rate 0.5%, winding shaping subsequently oil.
The performance comparison that makes polysulphonamide fiber main performance and Nomex sees the following form.
| Index name | Unit | Virtue sulfone synthetic fibre | ??Nomex |
| Density | g/cm 3 | 1.42 | 1.38 |
| Fracture strength | cN/dtex | 2.8～3.0 | 5.0 |
| Elongation | ％ | 20-25 | 15-17 |
| Tensile modulus | kg/mm 2 | 760 | 1680-1850 |
| Regain (RH65%20 ℃) | ％ | 6.28 | 4.5-5.0 |
| Softening temperature | ℃ | 367 | 370 |
| Fusing point | ℃ | Not molten | Not molten |
| Initial decomposition temperature | ℃ | 422 | 415 |
| The elevated temperature strength conservation rate | ?200℃ | ％ | 83 | 90 | |
| ?250℃ | ％ | 70 | 70 | ||
| ?300℃ | ％ | 50 | 40 | ||
| ?350℃ | ％ | 38 | - | ||
| Strength retention in hot-air | ?200℃?100h | ％ | 90 | 78 | |
| ?250℃?100h | ％ | 80 | 50-60 | ||
| ?300℃?50h | ％ | 55 | - | ||
| ?350℃?50h | ％ | 15 | - | ||
| Percent thermal shrinkage | Boiling water | ％ | 0.5-1.0 | 3.0 | |
| 300 ℃ of air | ％ | 2.0 | 8.0 | ||
| The LOI value | ％ | 33 | 28 | ||
| Combustibility | Difficult combustion, the tool self-extinguishment | Difficult combustion, the tool self-extinguishment | |||
| Electrical insulation capability | Specific volume resistance | Ω·cm | 2.6×10 16 | ||
| Dielectric constant | 1.79 | ||||
| Voltage breakdown intensity | kV/mm | 15-22 | 20 | ||
| Radiation resistance (gamma ray) 1 * 10 7red | No significant change | No significant change | |||
| Chemical-resistance | Well | Well | |||
Virtue sulfone synthetic fibre is of many uses, and all available fragrant sulfone synthetic fibre in all fields with the Nomex fiber replaces, and some heat resistance and anti-flammability require higher and the also available fragrant sulfone synthetic fibre in field that Nomex can't satisfy.
Main application:
1. protective article: suit, flight ventilation clothing, special uniform, military tarpaulin, fire-entry suit, turnout gear, stokehold Work Clothes, electric welding Work Clothes, forest Work Clothes, all force to submit, radiation proof Work Clothes, chemical protecting suit, high-tension shielding clothes, hotel be with textiles and escape and rescue trunk, fire screen, sleeping suit for children and bedding etc.
2. filtering material: flue dust removal and filtration bag, chemical industry filter cloth, rare metal collection bag, hot gas filtration flexible pipe etc.
3. electrically insulating material: electrode insulation material, TRANSFORMER INSULATING MATERIAL, corona-proof insulation plate, insulation nonwoven fabric, flocculus and felt, printed circuit board (PCB) etc.
4. cellular structural material: aircraft sandwich material, racing boat sandwich material, sound-insulating and heat-insulating and self-extinguishing material, revetment material, composite etc.
5. for asbestos friction material: encapsulants such as friction material, pad packings.
Other technical fabric: heat resistance conveyor belt, papermaking and printing and dyeing are cleaned felt, coated fabric etc. with lining cloth and woollen blanket, hawser, flatiron tablecloth ornament materials, sports goods, loudspeaker, duplicator.
Claims (10)
1. the manufacture method of aromatic polysulfonamides fibre, comprise spinning slurry preparation, wet spinning, three steps of post processing, it is characterized in that 4,4 '-diamino-diphenyl sulfone (4,4 '-DDS) 50%～95% and 3,3 '-diamino-diphenyl sulfone (3,3 '-DDS) 5%～50% (being mass percent), be dissolved in the dimethylacetylamide (DMAc), be cooled to-20～-5 ℃, add again and the equimolar paraphthaloyl chloride of diamino-diphenyl sulfone (TPC), make condensate content and be 10%～20% spinning slurry.
2. manufacture method as claimed in claim 1, the speed that it is characterized in that adding TPC should be controlled at and make reaction temperature be no more than 50 ℃.
3. manufacture method as claimed in claim 1 or 2 is characterized in that adding and the equimolar inorganic base of diamino-diphenyl sulfone after TPC adds and continues to react 0.5～1h.
4. manufacture method as claimed in claim 3 is characterized in that described inorganic base is calcium hydroxide and calcium oxide.
5. manufacture method as claimed in claim 1 through measuring, filter, spraying into coagulating tank from spinning head, is characterized in that coagulation bath composition is DMAc40%～70%, CaCl with the described spinning slurry of making
20%～10%, add water to 100% (being mass percent).
6. manufacture method as claimed in claim 5, tow enters stretching bath after being frozen into silk, and what it is characterized in that described stretch bath consists of DMAc40%～60%, CaCl
20%～10%, add water to 100% (being mass percent).
7. manufacture method as claimed in claim 6 is characterized in that the temperature at described stretch bath is to stretch 1～3 times under 30～100 ℃ of conditions.
8. manufacture method as claimed in claim 7, the tow that it is characterized in that stretching after 1～3 times is washed under 50～70 ℃ of conditions, and dry under 200～250 ℃ of conditions, again through 1～2 times of 250～450 ℃ of hot channel stretching.
9. manufacture method as claimed in claim 8, it is characterized in that 1～2 times of hot channel stretching after tow oil and winding shaping with cationic finish.
10. manufacture method as claimed in claim 9, the rate of oiling that it is characterized in that cationic finish is 0.2%～0.8%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB02136060XA CN1176256C (en) | 2002-07-16 | 2002-07-16 | Production process of aromatic polysulfone amide fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB02136060XA CN1176256C (en) | 2002-07-16 | 2002-07-16 | Production process of aromatic polysulfone amide fiber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1389604A true CN1389604A (en) | 2003-01-08 |
| CN1176256C CN1176256C (en) | 2004-11-17 |
Family
ID=4748483
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB02136060XA Expired - Lifetime CN1176256C (en) | 2002-07-16 | 2002-07-16 | Production process of aromatic polysulfone amide fiber |
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Cited By (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100345886C (en) * | 2004-04-14 | 2007-10-31 | 邢哲 | Method for increasing fire resistance of meta-aromatic polyamide polymer |
| WO2009026480A1 (en) * | 2007-08-22 | 2009-02-26 | E. I. Du Pont De Nemours And Company | Flame resistant spun staple yarns made from blends of fibers derived from diamino diphenyl sulfone, low thermal shrinkage fibers, flame resistant fibers, and antitstatic fibers and fabrics and garments made therefrom and methods for making same |
| WO2009026481A1 (en) * | 2007-08-22 | 2009-02-26 | E.I. Du Pont De Nemours And Company | Flame resistant spun staple yarns made from blends of fibers derived from diamino diphenyl sulfone and modacrylic fibers and fabrics and garments made therefrom and methods for making same |
| WO2009026478A1 (en) * | 2007-08-22 | 2009-02-26 | E. I. Du Pont De Nemours And Company | Spun staple yarns made from blends of rigid-rod fibers and fibers derived from diamino diphenyl sulfone and fabrics and garments made therefrom and methods for making same |
| WO2009026482A1 (en) * | 2007-08-22 | 2009-02-26 | E.I. Du Pont De Nemours And Company | Flame resistant spun staple yarns made from blends of fibers derived from diamino diphenyl sulfone and polyoxadiazole fibers and fabrics and garments made therefrom and methods for making same |
| WO2009026476A1 (en) | 2007-08-22 | 2009-02-26 | E. I. Du Pont De Nemours And Company | Flame resistant spun staple yarns made from blends of fibers derived from diamino diphenyl sulfone and high modulus fibers and fabrics and garments made therefrom and methods for making same |
| WO2009026479A1 (en) * | 2007-08-22 | 2009-02-26 | E. I. Du Pont De Nemours And Company | Flame resistant spun staple yarns made from blends of fibers derived from diamino diphenyl sulfone and textile fibers and fabrics and garments made therefrom and methods for making same |
| WO2009026489A1 (en) * | 2007-08-22 | 2009-02-26 | E. I. Du Pont De Nemours And Company | Fibers comprising copolymers containing structures derived from 4.4' diamino diphenyl sulfone and a plurality of acid monomers and methods of making same |
| WO2009086226A2 (en) * | 2007-12-21 | 2009-07-09 | E. I. Du Pont De Nemours And Company | Papers containing floc derived from diamino diphenyl sulfone |
| EP1975285A3 (en) * | 2007-03-26 | 2009-10-07 | Shanghai Tanlon Fiber Co., Ltd. | A method for producing omni-meta aromatic polysulfonamide fiber |
| US7819936B2 (en) | 2007-08-22 | 2010-10-26 | E.I. Du Pont De Nemours And Company | Filter felts and bag filters comprising blends of fibers derived from diamino diphenyl sulfone and heat resistant fibers |
| CN101892611A (en) * | 2010-08-18 | 2010-11-24 | 骏源特种纸（上海）有限公司 | Processing technology of polysulfonamide insulation paper |
| US7955692B2 (en) | 2007-08-22 | 2011-06-07 | E. I. Du Pont De Nemours And Company | Protective garment comprising fibers comprising copolymers containing structures derived from a plurality of amine monomers including 4,4′ diamino diphenyl sulfone |
| CN101718002B (en) * | 2009-10-21 | 2011-06-08 | 南通信一服饰有限公司 | Method for preparing ultrafine polysulfonainide fiber |
| CN101255616B (en) * | 2007-03-02 | 2011-08-10 | 上海特安纶纤维有限公司 | Method for manufacturing aromatic polysulfonamides fibre |
| CN102337600A (en) * | 2011-07-27 | 2012-02-01 | 东华大学 | Hot drawing method for aromatic polysulfonamide nascent fibre |
| US8114251B2 (en) | 2007-12-21 | 2012-02-14 | E.I. Du Pont De Nemours And Company | Papers containing fibrids derived from diamino diphenyl sulfone |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101235552B (en) * | 2008-02-29 | 2010-06-09 | 上海大学 | Random copolymerization polysulfonamide spinning liquid and preparation method thereof |
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2002
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