GB1265874A - - Google Patents
Info
- Publication number
- GB1265874A GB1265874A GB1265874DA GB1265874A GB 1265874 A GB1265874 A GB 1265874A GB 1265874D A GB1265874D A GB 1265874DA GB 1265874 A GB1265874 A GB 1265874A
- Authority
- GB
- United Kingdom
- Prior art keywords
- solution
- acrylonitrile
- polymer
- conjugate filaments
- steam
- 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
- 239000000243 solution Substances 0.000 abstract 12
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 abstract 7
- 229920000642 polymer Polymers 0.000 abstract 5
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 abstract 4
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 abstract 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- 238000010438 heat treatment Methods 0.000 abstract 3
- 229920002239 polyacrylonitrile Polymers 0.000 abstract 3
- 150000003839 salts Chemical class 0.000 abstract 3
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 abstract 2
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 abstract 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 abstract 2
- 238000009987 spinning Methods 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 239000011592 zinc chloride Substances 0.000 abstract 2
- 235000005074 zinc chloride Nutrition 0.000 abstract 2
- 239000011787 zinc oxide Substances 0.000 abstract 2
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 abstract 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 abstract 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 abstract 1
- FMRLDPWIRHBCCC-UHFFFAOYSA-L Zinc carbonate Chemical compound [Zn+2].[O-]C([O-])=O FMRLDPWIRHBCCC-UHFFFAOYSA-L 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 150000007514 bases Chemical class 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000009835 boiling Methods 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 230000001112 coagulating effect Effects 0.000 abstract 1
- 230000008602 contraction Effects 0.000 abstract 1
- 229920001577 copolymer Polymers 0.000 abstract 1
- 238000001125 extrusion Methods 0.000 abstract 1
- 239000000835 fiber Substances 0.000 abstract 1
- 238000005187 foaming Methods 0.000 abstract 1
- 238000010528 free radical solution polymerization reaction Methods 0.000 abstract 1
- 150000002484 inorganic compounds Chemical class 0.000 abstract 1
- 229910010272 inorganic material Inorganic materials 0.000 abstract 1
- FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical compound CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 abstract 1
- 238000006116 polymerization reaction Methods 0.000 abstract 1
- UIIIBRHUICCMAI-UHFFFAOYSA-N prop-2-ene-1-sulfonic acid Chemical compound OS(=O)(=O)CC=C UIIIBRHUICCMAI-UHFFFAOYSA-N 0.000 abstract 1
- 239000011541 reaction mixture Substances 0.000 abstract 1
- 229920006395 saturated elastomer Polymers 0.000 abstract 1
- 229910000029 sodium carbonate Inorganic materials 0.000 abstract 1
- 239000011780 sodium chloride Substances 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 238000002166 wet spinning Methods 0.000 abstract 1
- 239000011667 zinc carbonate Substances 0.000 abstract 1
- 235000004416 zinc carbonate Nutrition 0.000 abstract 1
- 229910000010 zinc carbonate Inorganic materials 0.000 abstract 1
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
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/08—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyacrylonitrile as constituent
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2922—Nonlinear [e.g., crimped, coiled, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2929—Bicomponent, conjugate, composite or collateral fibers or filaments [i.e., coextruded sheath-core or side-by-side type]
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Artificial Filaments (AREA)
- Multicomponent Fibers (AREA)
Abstract
1,265,874. Polyacrylonitrile conjugate filaments. TOHO BESLON CO. Ltd. 15 Aug., 1969 [16 Aug., 1968], No. 40872/69. Heading B5B. In the wet spinning of acrylonitrile polymer conjugate filaments, a concentrated aqueous zinc chloride solution containing 0À005 to 0À2% by weight (calculated as zinc oxide) of a basic inorganic compound is used as the solvent and the solution is divided into two portions, one portion being extruded through a spinneret adapted to spin conjugate filaments without having been previously heated and the other portion having been heated to a temperature and for a time prior to extrusion through the spinneret such that the difference in T DMF of homo filaments spun from the solutions separately is more than 5 C. T DMF is defined as the temperature of maximum contraction of the fibre, measured when heated in aqueous dimethyl formamide solution under specified conditions. The polymers used consist mainly of acrylonitrile and include copolymers of acrylonitrile with methyl acrylate, methyl methacrylate, vinyl acetate, acrylamide, methacrylamide, allylsulphonic acid, methallylsulphonic acid and salts thereof. The acrylonitrile polymer solution may be prepared by continuous solution polymerization comprising the steps of filling a polymerization apparatus with a reaction mixture and applying a pressure of 1-5 kg/cm.<SP>2</SP> gauge to the reaction system, and the heat-treated polymer solution is prepared by continuously heating a portion of the solution thus produced while applying a pressure of 1-10 kg/cm.<SP>2</SP> gauge to the polymer solution in at least one heating vessel to prevent foaming and gel formation. The heat treatment may be effected at 80-130 C. The polymer may be dissolved in an aqueous solution of zinc chloride containing 55-65% by weight of the salt. The solution may also contain sodium chloride. The basic compound present in the spinning solution may be zinc oxide, zinc carbonate, sodium hydroxide or sodium carbonate. The two types of polymer solution are preferably extruded at 10-30 C. into an aqueous coagulating bath containing 10 to 40% of the same salts as are present in the spinning solution. The geltow of conjugate filaments thereby obtained is washed with water, stretched at an elevated temperature (e.g. in steam) while wet or dry, and relaxed in hot air, saturated steam or superheated steam, e.g. steam at 220 C. A second stretching step may be effected. The conjugate filaments obtained may be immersed in boiling water for 10 minutes whereby they acquire a spiral crimp.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5843568 | 1968-08-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1265874A true GB1265874A (en) | 1972-03-08 |
Family
ID=13084297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1265874D Expired GB1265874A (en) | 1968-08-16 | 1969-08-15 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3701819A (en) |
| DE (1) | DE1941390C3 (en) |
| FI (1) | FI51716C (en) |
| GB (1) | GB1265874A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4124673A (en) * | 1975-03-26 | 1978-11-07 | Bayer Aktiengesellschaft | Process for the production of bifilar acrylic fibres |
| GB1500778A (en) * | 1975-05-07 | 1978-02-08 | Asahi Chemical Ind | Bulky non-woven fabric |
| GB1601698A (en) * | 1977-08-20 | 1981-11-04 | Gen Eng Radcliffe | Extrusion method and apparatus therefor |
| US4336022A (en) * | 1979-08-01 | 1982-06-22 | E. I. Du Pont De Nemours And Company | Acrylic precursor fibers suitable for preparing carbon or graphite fibers |
| US4873142A (en) * | 1986-04-03 | 1989-10-10 | Monsanto Company | Acrylic fibers having superior abrasion/fatigue resistance |
-
1969
- 1969-08-14 DE DE1941390A patent/DE1941390C3/en not_active Expired
- 1969-08-14 US US850036A patent/US3701819A/en not_active Expired - Lifetime
- 1969-08-15 FI FI692386A patent/FI51716C/en active
- 1969-08-15 GB GB1265874D patent/GB1265874A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1941390A1 (en) | 1970-02-26 |
| DE1941390C3 (en) | 1978-06-15 |
| FI51716B (en) | 1976-11-30 |
| DE1941390B2 (en) | 1977-10-27 |
| FI51716C (en) | 1977-03-10 |
| US3701819A (en) | 1972-10-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |