IL37577A - Process for the optical brightening of fibre material of cellulose,or natural or synthetic polyamide - Google Patents
Process for the optical brightening of fibre material of cellulose,or natural or synthetic polyamideInfo
- Publication number
- IL37577A IL37577A IL37577A IL3757771A IL37577A IL 37577 A IL37577 A IL 37577A IL 37577 A IL37577 A IL 37577A IL 3757771 A IL3757771 A IL 3757771A IL 37577 A IL37577 A IL 37577A
- Authority
- IL
- Israel
- Prior art keywords
- weight
- per cent
- fibre material
- solvent mixture
- process according
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 28
- 230000003287 optical effect Effects 0.000 title claims description 28
- 239000000463 material Substances 0.000 title claims description 27
- 239000000835 fiber Substances 0.000 title claims description 22
- 238000005282 brightening Methods 0.000 title claims description 15
- 239000004952 Polyamide Substances 0.000 title claims description 13
- 229920002647 polyamide Polymers 0.000 title claims description 13
- 229920002678 cellulose Polymers 0.000 title claims description 8
- 239000001913 cellulose Substances 0.000 title claims description 8
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 27
- 150000003839 salts Chemical class 0.000 claims description 20
- -1 alkali metal salt Chemical class 0.000 claims description 19
- 239000011877 solvent mixture Substances 0.000 claims description 19
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 15
- 229920000742 Cotton Polymers 0.000 claims description 12
- 238000009835 boiling Methods 0.000 claims description 12
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 9
- 239000002253 acid Substances 0.000 claims description 9
- 150000007513 acids Chemical class 0.000 claims description 9
- 239000003960 organic solvent Substances 0.000 claims description 8
- CYTYCFOTNPOANT-UHFFFAOYSA-N Perchloroethylene Chemical group ClC(Cl)=C(Cl)Cl CYTYCFOTNPOANT-UHFFFAOYSA-N 0.000 claims description 7
- 229950011008 tetrachloroethylene Drugs 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- BDHFUVZGWQCTTF-UHFFFAOYSA-N sulfonic acid Chemical group OS(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-N 0.000 claims description 6
- 125000000129 anionic group Chemical group 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 claims description 4
- 125000002843 carboxylic acid group Chemical group 0.000 claims description 4
- 150000007529 inorganic bases Chemical class 0.000 claims description 4
- 229910052783 alkali metal Inorganic materials 0.000 claims description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 3
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 3
- 150000002576 ketones Chemical class 0.000 claims description 3
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 claims description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 2
- 239000005977 Ethylene Substances 0.000 claims description 2
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 claims description 2
- 150000003863 ammonium salts Chemical class 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 150000008282 halocarbons Chemical class 0.000 claims description 2
- BOSAWIQFTJIYIS-UHFFFAOYSA-N 1,1,1-trichloro-2,2,2-trifluoroethane Chemical compound FC(F)(F)C(Cl)(Cl)Cl BOSAWIQFTJIYIS-UHFFFAOYSA-N 0.000 claims 2
- 150000002762 monocarboxylic acid derivatives Chemical class 0.000 claims 1
- 239000004744 fabric Substances 0.000 description 18
- 230000000694 effects Effects 0.000 description 16
- 239000000243 solution Substances 0.000 description 14
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 10
- 229920002292 Nylon 6 Polymers 0.000 description 9
- 239000002904 solvent Substances 0.000 description 9
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 6
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical class CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 5
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 5
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 4
- 229920002302 Nylon 6,6 Polymers 0.000 description 4
- 150000001408 amides Chemical class 0.000 description 4
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 4
- 239000004753 textile Substances 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- WVDDGKGOMKODPV-UHFFFAOYSA-N Benzyl alcohol Chemical compound OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000005108 dry cleaning Methods 0.000 description 3
- XPFVYQJUAUNWIW-UHFFFAOYSA-N furfuryl alcohol Chemical compound OCC1=CC=CO1 XPFVYQJUAUNWIW-UHFFFAOYSA-N 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 229960004592 isopropanol Drugs 0.000 description 3
- 150000003254 radicals Chemical class 0.000 description 3
- 229960002415 trichloroethylene Drugs 0.000 description 3
- UBOXGVDOUJQMTN-UHFFFAOYSA-N trichloroethylene Natural products ClCC(Cl)Cl UBOXGVDOUJQMTN-UHFFFAOYSA-N 0.000 description 3
- UOCLXMDMGBRAIB-UHFFFAOYSA-N 1,1,1-trichloroethane Chemical compound CC(Cl)(Cl)Cl UOCLXMDMGBRAIB-UHFFFAOYSA-N 0.000 description 2
- QPFMBZIOSGYJDE-UHFFFAOYSA-N 1,1,2,2-tetrachloroethane Chemical compound ClC(Cl)C(Cl)Cl QPFMBZIOSGYJDE-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 229920003043 Cellulose fiber Polymers 0.000 description 2
- ZHNUHDYFZUAESO-UHFFFAOYSA-N Formamide Chemical compound NC=O ZHNUHDYFZUAESO-UHFFFAOYSA-N 0.000 description 2
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 2
- 239000001089 [(2R)-oxolan-2-yl]methanol Substances 0.000 description 2
- 229960000583 acetic acid Drugs 0.000 description 2
- 238000013019 agitation Methods 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 150000001735 carboxylic acids Chemical class 0.000 description 2
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000012362 glacial acetic acid Substances 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 150000002763 monocarboxylic acids Chemical class 0.000 description 2
- 159000000000 sodium salts Chemical class 0.000 description 2
- 239000011550 stock solution Substances 0.000 description 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 2
- BSYVTEYKTMYBMK-UHFFFAOYSA-N tetrahydrofurfuryl alcohol Chemical compound OCC1CCCO1 BSYVTEYKTMYBMK-UHFFFAOYSA-N 0.000 description 2
- 210000002268 wool Anatomy 0.000 description 2
- 239000002759 woven fabric Substances 0.000 description 2
- SCYULBFZEHDVBN-UHFFFAOYSA-N 1,1-Dichloroethane Chemical compound CC(Cl)Cl SCYULBFZEHDVBN-UHFFFAOYSA-N 0.000 description 1
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- WSWVYNKFFUCSLI-UHFFFAOYSA-N 1,4-dioxane;1-methylpyrrolidin-2-one Chemical compound C1COCCO1.CN1CCCC1=O WSWVYNKFFUCSLI-UHFFFAOYSA-N 0.000 description 1
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 description 1
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 description 1
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- YCCQGYFUAXTHTP-UHFFFAOYSA-N 5-(triazin-4-ylamino)-2-[2-[4-(triazin-4-ylamino)phenyl]ethenyl]benzenesulfonic acid Chemical class N1=NN=C(C=C1)NC=1C=C(C(=CC1)C=CC1=CC=C(C=C1)NC1=NN=NC=C1)S(=O)(=O)O YCCQGYFUAXTHTP-UHFFFAOYSA-N 0.000 description 1
- 229920001095 Ban-Lon Polymers 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 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 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229920000571 Nylon 11 Polymers 0.000 description 1
- 229920000299 Nylon 12 Polymers 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910000288 alkali metal carbonate Inorganic materials 0.000 description 1
- 150000008041 alkali metal carbonates Chemical class 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 235000019445 benzyl alcohol Nutrition 0.000 description 1
- ALAQBGLVBRPFGE-UHFFFAOYSA-N butan-1-ol;2-methoxyethanol Chemical compound CCCCO.COCCO ALAQBGLVBRPFGE-UHFFFAOYSA-N 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 150000003950 cyclic amides Chemical class 0.000 description 1
- 150000004292 cyclic ethers Chemical class 0.000 description 1
- HPXRVTGHNJAIIH-UHFFFAOYSA-N cyclohexanol Chemical compound OC1CCCCC1 HPXRVTGHNJAIIH-UHFFFAOYSA-N 0.000 description 1
- IKJFYINYNJYDTA-UHFFFAOYSA-N dibenzothiophene sulfone Chemical class C1=CC=C2S(=O)(=O)C3=CC=CC=C3C2=C1 IKJFYINYNJYDTA-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 244000144992 flock Species 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 229940052308 general anesthetics halogenated hydrocarbons Drugs 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000003791 organic solvent mixture Substances 0.000 description 1
- GTLACDSXYULKMZ-UHFFFAOYSA-N pentafluoroethane Chemical compound FC(F)C(F)(F)F GTLACDSXYULKMZ-UHFFFAOYSA-N 0.000 description 1
- WVDDGKGOMKODPV-ZQBYOMGUSA-N phenyl(114C)methanol Chemical compound O[14CH2]C1=CC=CC=C1 WVDDGKGOMKODPV-ZQBYOMGUSA-N 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 150000003219 pyrazolines Chemical class 0.000 description 1
- 239000004627 regenerated cellulose Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 150000001629 stilbenes Chemical class 0.000 description 1
- 235000021286 stilbenes Nutrition 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- ZFXYFBGIUFBOJW-UHFFFAOYSA-N theophylline Chemical compound O=C1N(C)C(=O)N(C)C2=C1NC=N2 ZFXYFBGIUFBOJW-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/90—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using dyes dissolved in organic solvents or aqueous emulsions thereof
- D06P1/92—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using dyes dissolved in organic solvents or aqueous emulsions thereof in organic solvents
- D06P1/928—Solvents other than hydrocarbons
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
- D06L4/60—Optical bleaching or brightening
- D06L4/607—Optical bleaching or brightening in organic solvents
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/90—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using dyes dissolved in organic solvents or aqueous emulsions thereof
- D06P1/92—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using dyes dissolved in organic solvents or aqueous emulsions thereof in organic solvents
- D06P1/922—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using dyes dissolved in organic solvents or aqueous emulsions thereof in organic solvents hydrocarbons
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Detergent Compositions (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1275170A CH566421A (en)) | 1970-08-26 | 1970-08-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IL37577A0 IL37577A0 (en) | 1971-11-29 |
| IL37577A true IL37577A (en) | 1974-10-22 |
Family
ID=4386060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL37577A IL37577A (en) | 1970-08-26 | 1971-08-25 | Process for the optical brightening of fibre material of cellulose,or natural or synthetic polyamide |
Country Status (10)
| Country | Link |
|---|---|
| AT (1) | AT320576B (en)) |
| AU (1) | AU459309B2 (en)) |
| BE (1) | BE771745A (en)) |
| CA (1) | CA962011A (en)) |
| CH (2) | CH566421A (en)) |
| DE (1) | DE2142647B2 (en)) |
| FR (1) | FR2103527B1 (en)) |
| GB (1) | GB1356820A (en)) |
| IL (1) | IL37577A (en)) |
| NL (1) | NL7111712A (en)) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IN153407B (en)) * | 1979-09-28 | 1984-07-14 | Ciba Geigy Ag |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE518C (de) * | 1877-07-11 | J. KLEIN in Frankenthal | Verstellbare Kurbelschleife | |
| DE34C (de) * | 1877-07-11 | \V. u. F. LÖNHOLDT in Frankfurt a. M | Lüftungsvorrichtung | |
| FR451907A (fr) * | 1912-02-23 | 1913-05-02 | Cie Generale De Phonographes C | Perfectionnements dans les appareils de projections cinématographiques produisant eux-memes leur lumière |
-
1970
- 1970-08-26 CH CH1275170A patent/CH566421A/xx not_active IP Right Cessation
- 1970-08-26 CH CH1275170D patent/CH1275170A4/xx unknown
-
1971
- 1971-08-25 DE DE19712142647 patent/DE2142647B2/de active Granted
- 1971-08-25 AT AT742971A patent/AT320576B/de active
- 1971-08-25 NL NL7111712A patent/NL7111712A/xx unknown
- 1971-08-25 AU AU32722/71A patent/AU459309B2/en not_active Expired
- 1971-08-25 IL IL37577A patent/IL37577A/en unknown
- 1971-08-25 CA CA121,298A patent/CA962011A/en not_active Expired
- 1971-08-25 FR FR7130881A patent/FR2103527B1/fr not_active Expired
- 1971-08-25 GB GB3993171A patent/GB1356820A/en not_active Expired
- 1971-08-25 BE BE771745A patent/BE771745A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH1275170A4 (en)) | 1975-03-27 |
| FR2103527A1 (en)) | 1972-04-14 |
| NL7111712A (en)) | 1972-02-29 |
| AU459309B2 (en) | 1975-03-20 |
| DE2142647B2 (de) | 1973-06-07 |
| FR2103527B1 (en)) | 1974-05-31 |
| CH566421A (en)) | 1975-09-15 |
| DE2142647C3 (en)) | 1974-02-07 |
| IL37577A0 (en) | 1971-11-29 |
| AU3272271A (en) | 1973-03-01 |
| BE771745A (fr) | 1972-02-25 |
| AT320576B (de) | 1975-02-25 |
| DE2142647A1 (en)) | 1972-03-02 |
| CA962011A (en) | 1975-02-04 |
| GB1356820A (en) | 1974-06-19 |
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