CA2199514A1 - Procede d'elaboration de filaments et de fibres de polybenzazole - Google Patents
Procede d'elaboration de filaments et de fibres de polybenzazoleInfo
- Publication number
- CA2199514A1 CA2199514A1 CA 2199514 CA2199514A CA2199514A1 CA 2199514 A1 CA2199514 A1 CA 2199514A1 CA 2199514 CA2199514 CA 2199514 CA 2199514 A CA2199514 A CA 2199514A CA 2199514 A1 CA2199514 A1 CA 2199514A1
- Authority
- CA
- Canada
- Prior art keywords
- filament
- water
- dope
- washing
- percent
- 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.)
- Abandoned
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
- D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
- D01F6/74—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polycondensates of cyclic compounds, e.g. polyimides, polybenzimidazoles
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Artificial Filaments (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
Procédé en continu d'extraction de l'acide polyphosphoric d'un filament dopé au polybenzazole. Ce procédé comprend les étapes suivantes: (a) le filament dopé est exposé à l'eau ou à un mélange d'eau et d'acide polyphosphorique dans des conditions suffisantes pour abaisser la teneur en phosphore du filament à moins de 10,000 ppm en poids; puis (b) le filament dopé est soumis à une solution aqueuse d'une base non-organique dans des conditions suffisantes pour convertir au moins 50 % des groupes acides polyphosphoriques présents dans le filament en un sel de la base et de l'acide. On a constaté que le fait de soumettre un filament à une solution de base après l'avoir lavé pour extraire la plus grande partie du phosphore résiduel entraîne une amélioration de la résistance initiale à la traction de ce filament ainsi qu'une amélioration de la préservation de la résistance à la traction et/ou du poids moléculaire (du polymère polybenzazole) après une exposition à la lumière et/ou à des températures élevées.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US31626694A | 1994-09-30 | 1994-09-30 | |
US08/316,266 | 1994-09-30 | ||
US08/500,651 | 1995-07-12 | ||
US08/500,651 US5525638A (en) | 1994-09-30 | 1995-07-12 | Process for the preparation of polybenzazole filaments and fibers |
Publications (1)
Publication Number | Publication Date |
---|---|
CA2199514A1 true CA2199514A1 (fr) | 1996-04-11 |
Family
ID=26980332
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2199514 Abandoned CA2199514A1 (fr) | 1994-09-30 | 1995-09-08 | Procede d'elaboration de filaments et de fibres de polybenzazole |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0783603B1 (fr) |
CN (1) | CN1159836A (fr) |
CA (1) | CA2199514A1 (fr) |
DE (1) | DE69513844T2 (fr) |
MX (1) | MX9702304A (fr) |
WO (1) | WO1996010661A1 (fr) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001083862A1 (fr) * | 2000-04-28 | 2001-11-08 | Toyo Boseki Kabushiki Kaisha | Fibres de polybenzasol et son utilisation |
ATE382577T1 (de) * | 2001-11-23 | 2008-01-15 | Inventio Ag | Aufzug mit riemenartigem übertragungsmittel, insbesondere mit keilrippen-riemen, als tragmittel und/oder treibmittel |
AU2003244068A1 (en) | 2002-06-26 | 2004-01-19 | Toyo Boseki Kabushiki Kaisha | Polybenzazole fiber and use thereof |
US7189346B2 (en) | 2004-07-22 | 2007-03-13 | E. I. Du Pont De Nemours And Company | Polybenzazole fibers and processes for their preparation |
US7906615B2 (en) * | 2005-03-28 | 2011-03-15 | Magellan Systems International, Llc | Process for hydrolyzing polyphosphoric acid in a spun yarn |
JP4829959B2 (ja) * | 2005-03-28 | 2011-12-07 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | ペンダント型ヒドロキシル基とカチオンを有するポリアレーンアゾール重合体繊維 |
KR101327706B1 (ko) * | 2005-03-28 | 2013-11-11 | 마젤란 시스템즈 인터내셔날, 엘엘시 | 방사된 실 중의 폴리인산의 고온 표면 가수분해 |
JP4769295B2 (ja) * | 2005-03-28 | 2011-09-07 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | 紡績マルチフィラメントヤーン中のポリ燐酸に加水分解を融合無しに受けさせる方法 |
JP4769290B2 (ja) * | 2005-03-28 | 2011-09-07 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | 繊維またはヤーンから燐を除去する方法 |
US7888457B2 (en) * | 2005-04-01 | 2011-02-15 | E. I. Du Pont De Nemours And Company | Process for removing phosphorous from a fiber or yarn |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5273703A (en) * | 1992-08-13 | 1993-12-28 | The Dow Chemical Company | Process for post-spin finishing of polybenzoxazole fibers |
US5292469A (en) * | 1993-01-05 | 1994-03-08 | The Dow Chemical Company | Process for coagulation, washing and leaching of shaped polybenzazole articles |
US5393478A (en) * | 1993-08-20 | 1995-02-28 | The Dow Chemical Company | Process for coagulation and washing of polybenzazole fibers |
-
1995
- 1995-09-08 CA CA 2199514 patent/CA2199514A1/fr not_active Abandoned
- 1995-09-08 WO PCT/US1995/011229 patent/WO1996010661A1/fr active IP Right Grant
- 1995-09-08 CN CN 95195398 patent/CN1159836A/zh active Pending
- 1995-09-08 EP EP95931706A patent/EP0783603B1/fr not_active Expired - Lifetime
- 1995-09-08 MX MX9702304A patent/MX9702304A/es not_active Application Discontinuation
- 1995-09-08 DE DE69513844T patent/DE69513844T2/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
WO1996010661A1 (fr) | 1996-04-11 |
DE69513844D1 (de) | 2000-01-13 |
MX9702304A (es) | 1997-06-28 |
EP0783603A1 (fr) | 1997-07-16 |
EP0783603B1 (fr) | 1999-12-08 |
CN1159836A (zh) | 1997-09-17 |
DE69513844T2 (de) | 2000-07-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5525638A (en) | Process for the preparation of polybenzazole filaments and fibers | |
EP1769109B1 (fr) | Procédé pour éliminer l'acide polyphosphorique des filaments de polybenzazole | |
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KR101337688B1 (ko) | 방사된 실 중의 폴리인산의 가수분해 방법 | |
EP1863956B1 (fr) | Procede d'elimination du phosphore d'une fibre ou d'un fil | |
US5393478A (en) | Process for coagulation and washing of polybenzazole fibers | |
US5429787A (en) | Method for rapid drying of a polybenzazole fiber | |
EP0783603B1 (fr) | Procede d'elaboration de filaments et de fibres de polybenzazole | |
JP3651621B2 (ja) | ポリベンザゾール繊維の製造方法 | |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FZDE | Dead |