DE2229800C3 - Glanzstabilisierte Fasern und Filme aus Acrylnitrücopolymerisaten - Google Patents
Glanzstabilisierte Fasern und Filme aus AcrylnitrücopolymerisatenInfo
- Publication number
- DE2229800C3 DE2229800C3 DE2229800A DE2229800A DE2229800C3 DE 2229800 C3 DE2229800 C3 DE 2229800C3 DE 2229800 A DE2229800 A DE 2229800A DE 2229800 A DE2229800 A DE 2229800A DE 2229800 C3 DE2229800 C3 DE 2229800C3
- Authority
- DE
- Germany
- Prior art keywords
- weight
- gloss
- polymer
- dimethylacrylamide
- threads
- 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
- 229920001577 copolymer Polymers 0.000 title claims description 30
- 239000000835 fiber Substances 0.000 title claims description 9
- 229920000642 polymer Polymers 0.000 claims description 28
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 claims description 18
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 17
- 239000000203 mixture Substances 0.000 claims description 12
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 claims description 11
- 229920002959 polymer blend Polymers 0.000 claims description 11
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 5
- YLGYACDQVQQZSW-UHFFFAOYSA-N n,n-dimethylprop-2-enamide Chemical group CN(C)C(=O)C=C YLGYACDQVQQZSW-UHFFFAOYSA-N 0.000 claims description 5
- INLLPKCGLOXCIV-UHFFFAOYSA-N bromoethene Chemical compound BrC=C INLLPKCGLOXCIV-UHFFFAOYSA-N 0.000 claims description 4
- 239000000178 monomer Substances 0.000 claims description 4
- 230000002378 acidificating effect Effects 0.000 claims description 3
- 125000005396 acrylic acid ester group Chemical group 0.000 claims description 2
- 239000003495 polar organic solvent Substances 0.000 claims description 2
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 37
- 210000003934 vacuole Anatomy 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 238000006243 chemical reaction Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 10
- 238000009835 boiling Methods 0.000 description 9
- BAPJBEWLBFYGME-UHFFFAOYSA-N acrylic acid methyl ester Natural products COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 8
- 150000001408 amides Chemical class 0.000 description 8
- 229920002125 Sokalan® Polymers 0.000 description 7
- 239000004584 polyacrylic acid Substances 0.000 description 7
- 238000009987 spinning Methods 0.000 description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 238000007334 copolymerization reaction Methods 0.000 description 5
- 238000010998 test method Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 4
- 150000002148 esters Chemical class 0.000 description 4
- 230000000087 stabilizing effect Effects 0.000 description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 229920001519 homopolymer Polymers 0.000 description 3
- 229940088644 n,n-dimethylacrylamide Drugs 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 229920002821 Modacrylic Polymers 0.000 description 2
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 150000003926 acrylamides Chemical class 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 229920000578 graft copolymer Polymers 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 150000004702 methyl esters Chemical class 0.000 description 2
- VLZLOWPYUQHHCG-UHFFFAOYSA-N nitromethylbenzene Chemical compound [O-][N+](=O)CC1=CC=CC=C1 VLZLOWPYUQHHCG-UHFFFAOYSA-N 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 229920002239 polyacrylonitrile Polymers 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- AGBXYHCHUYARJY-UHFFFAOYSA-N 2-phenylethenesulfonic acid Chemical compound OS(=O)(=O)C=CC1=CC=CC=C1 AGBXYHCHUYARJY-UHFFFAOYSA-N 0.000 description 1
- KGIGUEBEKRSTEW-UHFFFAOYSA-N 2-vinylpyridine Chemical compound C=CC1=CC=CC=N1 KGIGUEBEKRSTEW-UHFFFAOYSA-N 0.000 description 1
- WHNPOQXWAMXPTA-UHFFFAOYSA-N 3-methylbut-2-enamide Chemical compound CC(C)=CC(N)=O WHNPOQXWAMXPTA-UHFFFAOYSA-N 0.000 description 1
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 1
- FOSCIVJDUKVDMS-UHFFFAOYSA-N C1=CC=CC=C1.C(C(=C)C)(=O)NC1=CC=CC=C1 Chemical compound C1=CC=CC=C1.C(C(=C)C)(=O)NC1=CC=CC=C1 FOSCIVJDUKVDMS-UHFFFAOYSA-N 0.000 description 1
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 1
- 238000004566 IR spectroscopy Methods 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical class CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 125000005907 alkyl ester group Chemical group 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007380 fibre production Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- GNOIPBMMFNIUFM-UHFFFAOYSA-N hexamethylphosphoric triamide Chemical compound CN(C)P(=O)(N(C)C)N(C)C GNOIPBMMFNIUFM-UHFFFAOYSA-N 0.000 description 1
- 150000003949 imides Chemical class 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 238000010409 ironing Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical class CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/18—Homopolymers or copolymers of nitriles
- C08L33/20—Homopolymers or copolymers of acrylonitrile
-
- 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
- D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
- D01F6/48—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polymers of halogenated hydrocarbons
-
- 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
- D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
- D01F6/54—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polymers of unsaturated nitriles
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Artificial Filaments (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Priority Applications (10)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2229800A DE2229800C3 (de) | 1972-06-19 | 1972-06-19 | Glanzstabilisierte Fasern und Filme aus Acrylnitrücopolymerisaten |
| IT50722/73A IT985437B (it) | 1972-06-19 | 1973-06-12 | Fibre e pellicole stabilizzate per cio che riguarda la lucen tezza costituite da copolimeri di acrilonitrile |
| DD171706A DD107492A5 (enExample) | 1972-06-19 | 1973-06-15 | |
| CA174,124A CA1010183A (en) | 1972-06-19 | 1973-06-15 | Gloss-stabilised fibres and films of acrylonitrile copolymers |
| NL7308444A NL7308444A (enExample) | 1972-06-19 | 1973-06-18 | |
| BE132383A BE801056A (fr) | 1972-06-19 | 1973-06-18 | Fibres et pellicules de copolymeres d'acrylonitrile a brillant stabilise |
| US05/371,547 US3936513A (en) | 1972-06-19 | 1973-06-19 | Gloss-stabilised fibres and films of acrylonitrile copolymers |
| FR7322323A FR2189542B1 (enExample) | 1972-06-19 | 1973-06-19 | |
| JP48068392A JPS4957057A (enExample) | 1972-06-19 | 1973-06-19 | |
| GB2893373A GB1416630A (en) | 1972-06-19 | 1973-06-19 | Gloss-stabilised fibres filaments and films of acrylonitrile copolymers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2229800A DE2229800C3 (de) | 1972-06-19 | 1972-06-19 | Glanzstabilisierte Fasern und Filme aus Acrylnitrücopolymerisaten |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2229800A1 DE2229800A1 (de) | 1974-01-17 |
| DE2229800B2 DE2229800B2 (de) | 1978-03-23 |
| DE2229800C3 true DE2229800C3 (de) | 1978-11-23 |
Family
ID=5848113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2229800A Expired DE2229800C3 (de) | 1972-06-19 | 1972-06-19 | Glanzstabilisierte Fasern und Filme aus Acrylnitrücopolymerisaten |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US3936513A (enExample) |
| JP (1) | JPS4957057A (enExample) |
| BE (1) | BE801056A (enExample) |
| CA (1) | CA1010183A (enExample) |
| DD (1) | DD107492A5 (enExample) |
| DE (1) | DE2229800C3 (enExample) |
| FR (1) | FR2189542B1 (enExample) |
| GB (1) | GB1416630A (enExample) |
| IT (1) | IT985437B (enExample) |
| NL (1) | NL7308444A (enExample) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5147923A (en) * | 1987-10-05 | 1992-09-15 | Ciba-Geigy Corporation | Thermotropic biphilic hydrogels and hydroplastics |
| US5104954A (en) * | 1987-10-05 | 1992-04-14 | Ciba-Geigy Corporation | Thermostropic biphilic hydrogels and hydroplastics |
| US5019377A (en) * | 1987-12-11 | 1991-05-28 | The Procter & Gamble Company | Low glass transistion temperature adhesive copolymers for use in hair styling products |
| US5104642A (en) * | 1990-04-06 | 1992-04-14 | The Procter & Gamble Company | Hair styling compositions containing particular hair styling polymers and non-aqueous solvents |
| US5120531A (en) * | 1990-04-06 | 1992-06-09 | The Procter & Gamble Company | Hair styling conditioners |
| US5120532A (en) * | 1990-04-06 | 1992-06-09 | The Procter & Gamble Company | Hair styling shampoos |
| JPH0819391B2 (ja) * | 1992-11-30 | 1996-02-28 | 日東電工株式会社 | 感圧接着剤とその接着シ―ト類 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2740763A (en) * | 1952-03-07 | 1956-04-03 | Chemstrand Corp | Fiber-forming solution of acrylonitrile polymer and reductively aminated polymer |
| US2831826A (en) * | 1954-12-30 | 1958-04-22 | Eastman Kodak Co | Mixtures of acrylic nitrile-ethylenic chloride copolymers with acrylamidic polymers and fibers thereof |
| US3580878A (en) * | 1967-07-01 | 1971-05-25 | Japan Exlan Co Ltd | Flame-resistant acrylonitrile copolymers with high receptivity to acid dyes |
| US3729531A (en) * | 1970-03-26 | 1973-04-24 | Bayer Ag | Vacuole-free filaments and films of acrylonitrile copolymers |
| DE2047248A1 (de) * | 1970-09-25 | 1972-03-30 | Farbenfabriken Bayer Ag, 5090 Leverkusen | Von Vakuolen freie Fäden und Filme aus Acrylnitrilcopolymerisaten |
-
1972
- 1972-06-19 DE DE2229800A patent/DE2229800C3/de not_active Expired
-
1973
- 1973-06-12 IT IT50722/73A patent/IT985437B/it active
- 1973-06-15 CA CA174,124A patent/CA1010183A/en not_active Expired
- 1973-06-15 DD DD171706A patent/DD107492A5/xx unknown
- 1973-06-18 BE BE132383A patent/BE801056A/xx unknown
- 1973-06-18 NL NL7308444A patent/NL7308444A/xx not_active Application Discontinuation
- 1973-06-19 FR FR7322323A patent/FR2189542B1/fr not_active Expired
- 1973-06-19 JP JP48068392A patent/JPS4957057A/ja active Pending
- 1973-06-19 US US05/371,547 patent/US3936513A/en not_active Expired - Lifetime
- 1973-06-19 GB GB2893373A patent/GB1416630A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1416630A (en) | 1975-12-03 |
| CA1010183A (en) | 1977-05-10 |
| FR2189542B1 (enExample) | 1977-07-29 |
| BE801056A (fr) | 1973-12-18 |
| FR2189542A1 (enExample) | 1974-01-25 |
| IT985437B (it) | 1974-11-30 |
| US3936513A (en) | 1976-02-03 |
| DE2229800B2 (de) | 1978-03-23 |
| JPS4957057A (enExample) | 1974-06-03 |
| DE2229800A1 (de) | 1974-01-17 |
| NL7308444A (enExample) | 1973-12-21 |
| DD107492A5 (enExample) | 1974-08-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C3 | Grant after two publication steps (3rd publication) | ||
| 8339 | Ceased/non-payment of the annual fee |