ES267142A1 - Process for increasing the resistance of polyacrylonitrile fibers to discoloration - Google Patents
Process for increasing the resistance of polyacrylonitrile fibers to discolorationInfo
- Publication number
- ES267142A1 ES267142A1 ES0267142A ES267142A ES267142A1 ES 267142 A1 ES267142 A1 ES 267142A1 ES 0267142 A ES0267142 A ES 0267142A ES 267142 A ES267142 A ES 267142A ES 267142 A1 ES267142 A1 ES 267142A1
- Authority
- ES
- Spain
- Prior art keywords
- formaldehyde
- acrylonitrile
- fibres
- sodium
- reducing agents
- 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
- 239000000835 fiber Substances 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 229920002239 polyacrylonitrile Polymers 0.000 title abstract 2
- 238000002845 discoloration Methods 0.000 title 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract 3
- 239000003638 chemical reducing agent Substances 0.000 abstract 3
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 abstract 2
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical class OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 abstract 2
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 abstract 2
- 229920001577 copolymer Polymers 0.000 abstract 2
- 238000011282 treatment Methods 0.000 abstract 2
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 abstract 1
- RYYXDZDBXNUPOG-UHFFFAOYSA-N 4,5,6,7-tetrahydro-1,3-benzothiazole-2,6-diamine;dihydrochloride Chemical compound Cl.Cl.C1C(N)CCC2=C1SC(N)=N2 RYYXDZDBXNUPOG-UHFFFAOYSA-N 0.000 abstract 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 abstract 1
- 229930040373 Paraformaldehyde Natural products 0.000 abstract 1
- 150000001408 amides Chemical class 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 239000007900 aqueous suspension Substances 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- -1 hydroxymethyl dimethyl hydantoin Chemical compound 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 abstract 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 abstract 1
- TZAZXQZADJAQFS-UHFFFAOYSA-N n-hydroxy-n-methylformamide Chemical compound CN(O)C=O TZAZXQZADJAQFS-UHFFFAOYSA-N 0.000 abstract 1
- 229920002866 paraformaldehyde Polymers 0.000 abstract 1
- RWPGFSMJFRPDDP-UHFFFAOYSA-L potassium metabisulfite Chemical compound [K+].[K+].[O-]S(=O)S([O-])(=O)=O RWPGFSMJFRPDDP-UHFFFAOYSA-L 0.000 abstract 1
- 239000004297 potassium metabisulphite Substances 0.000 abstract 1
- 235000010263 potassium metabisulphite Nutrition 0.000 abstract 1
- 229910052708 sodium Inorganic materials 0.000 abstract 1
- 239000004296 sodium metabisulphite Substances 0.000 abstract 1
- 235000010262 sodium metabisulphite Nutrition 0.000 abstract 1
- XUIVKWAWICCWIQ-UHFFFAOYSA-M sodium;formaldehyde;hydrogen sulfite Chemical compound [Na+].O=C.OS([O-])=O XUIVKWAWICCWIQ-UHFFFAOYSA-M 0.000 abstract 1
- 239000000243 solution Substances 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
- 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
- D01F11/00—Chemical after-treatment of artificial filaments or the like during manufacture
- D01F11/04—Chemical after-treatment of artificial filaments or the like during manufacture of synthetic polymers
- D01F11/06—Chemical after-treatment of artificial filaments or the like during manufacture of synthetic polymers of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- 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
-
- 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
- Y10T428/2933—Coated or with bond, impregnation or core
- Y10T428/2964—Artificial fiber or filament
- Y10T428/2967—Synthetic resin or polymer
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Artificial Filaments (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
Fibres or filaments of polyacrylonitrile, or of copolymers containing at least 80% of acrylonitrile, are rendered more resistant to heat and steam discolouration by treating the "neverdried" material with aqueous solutions or suspensions of reducing agents. The process may be carried out by passing a bundle of the wet fibres through a bath containing a 0,1%-10% solution of the reducing agent, optionally at elevated temperature. The treatment may be combined with other treatments such as finishing. Suitable reducing agents are thiourea dioxide, sodium or potassium metabisulphite, formaldehyde, and compounds yielding formaldehyde. The latter group includes paraformaldehyde, sodium formaldehyde bisulphite, and methylol derivatives of amides, for example hydroxymethyl formamide and hydroxymethyl dimethyl hydantoin. Examples, using a copolymer of acrylonitrile, methyl acrylate and itaconic acid, compare "fibre yellowness" when treated and untreated samples are heated in air or in steam under pressure.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB16078/60A GB900911A (en) | 1960-05-06 | 1960-05-06 | Process for treating artificial fibres |
| GB3108360 | 1960-09-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES267142A1 true ES267142A1 (en) | 1961-11-01 |
Family
ID=26251776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES0267142A Expired ES267142A1 (en) | 1960-05-06 | 1961-05-04 | Process for increasing the resistance of polyacrylonitrile fibers to discoloration |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3091552A (en) |
| BE (1) | BE603404A (en) |
| ES (1) | ES267142A1 (en) |
| GB (1) | GB900911A (en) |
| NL (3) | NL6812171A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3410647A (en) * | 1961-08-30 | 1968-11-12 | Monsanto Co | Treatment of gelled, swollen polyacrylonitrile type fibers with zinc sulfoxylate formaldehyde, zinc hydrosulfoxylate formaldehyde or zinc hydrosulfite |
| NL6803446A (en) * | 1967-04-03 | 1968-10-04 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2768995A (en) * | 1951-02-19 | 1956-10-30 | Crylor Paris | Process for treating acrylonitrile polymers with aqueous formaldehyde |
-
0
- BE BE603404D patent/BE603404A/xx unknown
- NL NL264237D patent/NL264237A/xx unknown
- NL NL126278D patent/NL126278C/xx active
-
1960
- 1960-05-06 GB GB16078/60A patent/GB900911A/en not_active Expired
-
1961
- 1961-04-28 US US106181A patent/US3091552A/en not_active Expired - Lifetime
- 1961-05-04 ES ES0267142A patent/ES267142A1/en not_active Expired
-
1968
- 1968-08-27 NL NL6812171A patent/NL6812171A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US3091552A (en) | 1963-05-28 |
| BE603404A (en) | |
| NL6812171A (en) | 1968-10-25 |
| NL126278C (en) | |
| NL264237A (en) | |
| GB900911A (en) | 1962-07-11 |
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