CA1083769A - Hydrophilic fibres and filaments of synthetic polymers - Google Patents
Hydrophilic fibres and filaments of synthetic polymersInfo
- Publication number
- CA1083769A CA1083769A CA272,738A CA272738A CA1083769A CA 1083769 A CA1083769 A CA 1083769A CA 272738 A CA272738 A CA 272738A CA 1083769 A CA1083769 A CA 1083769A
- Authority
- CA
- Canada
- Prior art keywords
- solvent
- fibres
- filaments
- spinning
- acrylonitrile
- 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
- 229920001059 synthetic polymer Polymers 0.000 title abstract description 4
- 238000009987 spinning Methods 0.000 claims abstract description 32
- 239000002904 solvent Substances 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 23
- 229920000642 polymer Polymers 0.000 claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 claims abstract description 7
- PEDCQBHIVMGVHV-UHFFFAOYSA-N glycerol group Chemical group OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 63
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 30
- 238000001556 precipitation Methods 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 19
- 238000010521 absorption reaction Methods 0.000 claims description 18
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 11
- 238000005406 washing Methods 0.000 claims description 10
- -1 amino, sulpho Chemical class 0.000 claims description 8
- 229920001577 copolymer Polymers 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 8
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical group C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 7
- 238000002166 wet spinning Methods 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 6
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 4
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 229940113088 dimethylacetamide Drugs 0.000 claims description 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 2
- CNCOEDDPFOAUMB-UHFFFAOYSA-N N-Methylolacrylamide Chemical compound OCNC(=O)C=C CNCOEDDPFOAUMB-UHFFFAOYSA-N 0.000 claims description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 2
- DNTMQTKDNSEIFO-UHFFFAOYSA-N n-(hydroxymethyl)-2-methylprop-2-enamide Chemical compound CC(=C)C(=O)NCO DNTMQTKDNSEIFO-UHFFFAOYSA-N 0.000 claims description 2
- 230000001376 precipitating effect Effects 0.000 claims description 2
- FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical compound CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 22
- 239000000126 substance Substances 0.000 abstract description 15
- 239000000835 fiber Substances 0.000 abstract description 8
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 11
- 239000000463 material Substances 0.000 description 8
- 230000003287 optical effect Effects 0.000 description 8
- 238000003756 stirring Methods 0.000 description 8
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 7
- 229920002972 Acrylic fiber Polymers 0.000 description 6
- 229920000742 Cotton Polymers 0.000 description 5
- 238000009835 boiling Methods 0.000 description 5
- 210000003934 vacuole Anatomy 0.000 description 5
- 239000000843 powder Substances 0.000 description 4
- CYIDZMCFTVVTJO-UHFFFAOYSA-N pyromellitic acid Chemical compound OC(=O)C1=CC(C(O)=O)=C(C(O)=O)C=C1C(O)=O CYIDZMCFTVVTJO-UHFFFAOYSA-N 0.000 description 4
- 229920002994 synthetic fiber Polymers 0.000 description 4
- 229920000297 Rayon Polymers 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 150000001408 amides Chemical class 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000002964 rayon Substances 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- ATHHXGZTWNVVOU-UHFFFAOYSA-N N-methylformamide Chemical compound CNC=O ATHHXGZTWNVVOU-UHFFFAOYSA-N 0.000 description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 2
- UWHCKJMYHZGTIT-UHFFFAOYSA-N Tetraethylene glycol, Natural products OCCOCCOCCOCCO UWHCKJMYHZGTIT-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 229960001760 dimethyl sulfoxide Drugs 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 2
- FBOUIAKEJMZPQG-AWNIVKPZSA-N (1E)-1-(2,4-dichlorophenyl)-4,4-dimethyl-2-(1,2,4-triazol-1-yl)pent-1-en-3-ol Chemical compound C1=NC=NN1/C(C(O)C(C)(C)C)=C/C1=CC=C(Cl)C=C1Cl FBOUIAKEJMZPQG-AWNIVKPZSA-N 0.000 description 1
- WZCQRUWWHSTZEM-UHFFFAOYSA-N 1,3-phenylenediamine Chemical compound NC1=CC=CC(N)=C1 WZCQRUWWHSTZEM-UHFFFAOYSA-N 0.000 description 1
- OVOUKWFJRHALDD-UHFFFAOYSA-N 2-[2-(2-acetyloxyethoxy)ethoxy]ethyl acetate Chemical compound CC(=O)OCCOCCOCCOC(C)=O OVOUKWFJRHALDD-UHFFFAOYSA-N 0.000 description 1
- LCZVSXRMYJUNFX-UHFFFAOYSA-N 2-[2-(2-hydroxypropoxy)propoxy]propan-1-ol Chemical compound CC(O)COC(C)COC(C)CO LCZVSXRMYJUNFX-UHFFFAOYSA-N 0.000 description 1
- NQBXSWAWVZHKBZ-UHFFFAOYSA-N 2-butoxyethyl acetate Chemical compound CCCCOCCOC(C)=O NQBXSWAWVZHKBZ-UHFFFAOYSA-N 0.000 description 1
- CFYUBZHJDXXXQE-UHFFFAOYSA-N 2-ethylcyclohexan-1-ol Chemical compound CCC1CCCCC1O CFYUBZHJDXXXQE-UHFFFAOYSA-N 0.000 description 1
- HXDLWJWIAHWIKI-UHFFFAOYSA-N 2-hydroxyethyl acetate Chemical class CC(=O)OCCO HXDLWJWIAHWIKI-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical group COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 241000193803 Therea Species 0.000 description 1
- 241000534944 Thia Species 0.000 description 1
- FZWLAAWBMGSTSO-UHFFFAOYSA-N Thiazole Chemical compound C1=CSC=N1 FZWLAAWBMGSTSO-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 150000003926 acrylamides Chemical class 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000005215 alkyl ethers Chemical class 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 239000001045 blue dye Substances 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000004508 fractional distillation Methods 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 125000005639 glycero group Chemical group 0.000 description 1
- 125000000623 heterocyclic group Chemical group 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 238000009940 knitting Methods 0.000 description 1
- 229940018564 m-phenylenediamine Drugs 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 229940074355 nitric acid Drugs 0.000 description 1
- 150000002916 oxazoles Chemical class 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- JZWFDVDETGFGFC-UHFFFAOYSA-N salacetamide Chemical class CC(=O)NC(=O)C1=CC=CC=C1O JZWFDVDETGFGFC-UHFFFAOYSA-N 0.000 description 1
- 229950009280 salacetamide Drugs 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- VGTPCRGMBIAPIM-UHFFFAOYSA-M sodium thiocyanate Chemical compound [Na+].[S-]C#N VGTPCRGMBIAPIM-UHFFFAOYSA-M 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
- 229960001939 zinc chloride Drugs 0.000 description 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
- D01F6/44—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
-
- 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
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Artificial Filaments (AREA)
- Multicomponent Fibers (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2607996A DE2607996C2 (de) | 1976-02-27 | 1976-02-27 | Hydrophile Fasern und Fäden aus einem Acrylnitrilpolymerisat |
| DEP2607996.9 | 1976-02-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1083769A true CA1083769A (en) | 1980-08-19 |
Family
ID=5971023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA272,738A Expired CA1083769A (en) | 1976-02-27 | 1977-02-25 | Hydrophilic fibres and filaments of synthetic polymers |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US4810449A (enExample) |
| JP (1) | JPS604284B2 (enExample) |
| AT (1) | AT356242B (enExample) |
| BE (1) | BE851829A (enExample) |
| CA (1) | CA1083769A (enExample) |
| DD (1) | DD130361A5 (enExample) |
| DE (1) | DE2607996C2 (enExample) |
| DK (1) | DK84277A (enExample) |
| FR (1) | FR2342358A1 (enExample) |
| GB (1) | GB1541152A (enExample) |
| IE (1) | IE44622B1 (enExample) |
| IT (1) | IT1085510B (enExample) |
| LU (1) | LU76854A1 (enExample) |
| NL (1) | NL7702073A (enExample) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2706522C2 (de) * | 1977-02-16 | 1990-06-21 | Bayer Ag, 5090 Leverkusen | Hydrophile Acrylfasern mit verbesserter Anfärbbarkeit |
| DE2752821C2 (de) * | 1977-11-26 | 1987-01-15 | Bayer Ag, 5090 Leverkusen | Hydrophile Acrylfasern niedriger Dichte |
| DE2755341C2 (de) | 1977-12-12 | 1983-09-08 | Akzo Gmbh, 5600 Wuppertal | Hydrophile Polyesterfasern |
| DE2947824A1 (de) * | 1979-11-28 | 1981-07-23 | Bayer Ag, 5090 Leverkusen | Querschnittsstabile, hygroskopische kern/mantelstruktur aufweisende fasern und faeden und verfahren zu deren herstellung |
| GB8712811D0 (en) * | 1987-06-01 | 1987-07-08 | Courtaulds Plc | Acrylic fibres |
| DE4420658C2 (de) * | 1994-06-14 | 1996-10-31 | Siemens Ag | Verfahren zur Volumenreduzierung einer Mischung aus Filterfasern und einem pulverförmigen Ionenaustauscherharz |
| US5759926A (en) * | 1995-06-07 | 1998-06-02 | Kimberly-Clark Worldwide, Inc. | Fine denier fibers and fabrics made therefrom |
| DE69626303T2 (de) | 1995-11-30 | 2003-12-11 | Kimberly-Clark Worldwide, Inc. | Vliesstoff aus sehr dünnen mikrofasern |
| US6451059B1 (en) | 1999-11-12 | 2002-09-17 | Ethicon, Inc. | Viscous suspension spinning process for producing resorbable ceramic fibers and scaffolds |
| US20100125963A1 (en) * | 2008-11-21 | 2010-05-27 | E. I. Du Pont De Nemours And Company | Monofilament comprising hydrophilic agent |
| PL2325384T3 (pl) | 2009-11-24 | 2014-01-31 | Fibertex Personal Care As | Trwale hydrofilowa włóknina |
| JP2012052281A (ja) * | 2010-08-03 | 2012-03-15 | Suzuki Kutsushita:Kk | 多価アルコール誘導体を含有する化学繊維及びこれを用いた繊維製品 |
| KR20140085379A (ko) * | 2011-09-30 | 2014-07-07 | 스미토모 고무 고교 가부시키가이샤 | 인공 잔디 및 인공 잔디 시설 |
| CN114045578A (zh) * | 2021-12-02 | 2022-02-15 | 山东大学 | 一种超高固含量聚丙烯腈纺丝原液的制备方法 |
| CN115799544A (zh) * | 2022-11-28 | 2023-03-14 | 电子科技大学长三角研究院(湖州) | 一种燃料电池用亲疏水可调的高导电碳纸的制备方法 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2716093A (en) * | 1951-06-12 | 1955-08-23 | Du Pont | Acrylonitrile polymer solutions and process of shaping the same |
| NL128691C (enExample) * | 1961-02-10 | |||
| US3322611A (en) * | 1962-10-19 | 1967-05-30 | Du Pont | Porous fibers and processes of preparing same |
| ES362855A1 (es) * | 1968-01-24 | 1971-02-16 | American Cyanamid Co | Procedimiento de produccion de una fibra acrilica provista de espacios vacios discontinuos. |
| DE2112877B2 (de) * | 1971-03-17 | 1978-06-29 | Bayer Ag, 5090 Leverkusen | Verfahren zur Herstellung von Fäden und Fasern mit verbesserten Anschmutzeigenschaften aus faserbildendem Acrylnitril-Polymerisat oder -Copolymerisat |
| JPS51210B2 (enExample) * | 1972-04-10 | 1976-01-06 | ||
| US4180617A (en) * | 1975-12-02 | 1979-12-25 | Bayer Aktiengesellschaft | Hygroscopic fibers and filaments |
| DE2607071C2 (de) * | 1976-02-21 | 1985-09-19 | Bayer Ag, 5090 Leverkusen | Synthesefasern und -fäden mit hoher Feuchtigkeitsaufnahme und großem Wasserrückhaltevermögen |
| DE2611193A1 (de) * | 1976-03-17 | 1977-09-29 | Bayer Ag | Verfahren zur herstellung von hydrophilen fasern und faeden aus synthetischen polymeren |
-
1976
- 1976-02-27 DE DE2607996A patent/DE2607996C2/de not_active Expired
-
1977
- 1977-02-21 GB GB7175/77A patent/GB1541152A/en not_active Expired
- 1977-02-25 CA CA272,738A patent/CA1083769A/en not_active Expired
- 1977-02-25 DD DD7700197572A patent/DD130361A5/xx unknown
- 1977-02-25 BE BE175259A patent/BE851829A/xx unknown
- 1977-02-25 JP JP52019374A patent/JPS604284B2/ja not_active Expired
- 1977-02-25 IT IT20730/77A patent/IT1085510B/it active
- 1977-02-25 AT AT129377A patent/AT356242B/de not_active IP Right Cessation
- 1977-02-25 NL NL7702073A patent/NL7702073A/xx not_active Application Discontinuation
- 1977-02-25 FR FR7705654A patent/FR2342358A1/fr active Granted
- 1977-02-25 LU LU76854A patent/LU76854A1/xx unknown
- 1977-02-25 DK DK84277A patent/DK84277A/da unknown
- 1977-02-25 IE IE407/77A patent/IE44622B1/en unknown
-
1987
- 1987-08-21 US US07/088,174 patent/US4810449A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| US4810449A (en) | 1989-03-07 |
| LU76854A1 (enExample) | 1977-09-12 |
| ATA129377A (de) | 1979-09-15 |
| DE2607996C2 (de) | 1987-02-26 |
| GB1541152A (en) | 1979-02-21 |
| IE44622L (en) | 1977-08-27 |
| NL7702073A (nl) | 1977-08-30 |
| FR2342358A1 (fr) | 1977-09-23 |
| FR2342358B1 (enExample) | 1983-02-18 |
| BE851829A (fr) | 1977-08-25 |
| JPS604284B2 (ja) | 1985-02-02 |
| DK84277A (da) | 1977-08-28 |
| JPS52107326A (en) | 1977-09-08 |
| AT356242B (de) | 1980-04-10 |
| IT1085510B (it) | 1985-05-28 |
| DD130361A5 (de) | 1978-03-22 |
| DE2607996A1 (de) | 1977-09-01 |
| IE44622B1 (en) | 1982-01-27 |
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