DE2610277C3 - Verfahren zur Entfernung von Druckfarben von Papier und zur Reinigung des dabei entstehenden Abwassers - Google Patents
Verfahren zur Entfernung von Druckfarben von Papier und zur Reinigung des dabei entstehenden AbwassersInfo
- Publication number
- DE2610277C3 DE2610277C3 DE2610277A DE2610277A DE2610277C3 DE 2610277 C3 DE2610277 C3 DE 2610277C3 DE 2610277 A DE2610277 A DE 2610277A DE 2610277 A DE2610277 A DE 2610277A DE 2610277 C3 DE2610277 C3 DE 2610277C3
- Authority
- DE
- Germany
- Prior art keywords
- surfactant
- pulp
- micelles
- ink
- anionic
- 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
- 239000000976 ink Substances 0.000 title claims description 45
- 238000000034 method Methods 0.000 title claims description 31
- 239000002351 wastewater Substances 0.000 title claims description 5
- 238000000746 purification Methods 0.000 title description 2
- 239000004094 surface-active agent Substances 0.000 claims description 38
- 238000005188 flotation Methods 0.000 claims description 20
- 150000001412 amines Chemical class 0.000 claims description 14
- 238000001556 precipitation Methods 0.000 claims description 13
- 239000000344 soap Substances 0.000 claims description 12
- 125000004432 carbon atom Chemical group C* 0.000 claims description 9
- 238000004062 sedimentation Methods 0.000 claims description 8
- 125000000217 alkyl group Chemical group 0.000 claims description 7
- 150000001768 cations Chemical class 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 6
- 238000005119 centrifugation Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 125000003342 alkenyl group Chemical group 0.000 claims description 2
- 239000002002 slurry Substances 0.000 claims description 2
- 239000008346 aqueous phase Substances 0.000 claims 2
- 239000011347 resin Substances 0.000 claims 2
- 229920005989 resin Polymers 0.000 claims 2
- 150000003973 alkyl amines Chemical class 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 239000000693 micelle Substances 0.000 description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 29
- 239000000203 mixture Substances 0.000 description 21
- 125000000129 anionic group Chemical group 0.000 description 17
- 238000005189 flocculation Methods 0.000 description 13
- 230000016615 flocculation Effects 0.000 description 12
- 125000002091 cationic group Chemical group 0.000 description 11
- 229920000867 polyelectrolyte Polymers 0.000 description 11
- 239000003945 anionic surfactant Substances 0.000 description 10
- 239000002245 particle Substances 0.000 description 10
- -1 aryl phosphate Chemical compound 0.000 description 9
- 239000000243 solution Substances 0.000 description 9
- 239000000126 substance Substances 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 7
- 239000006185 dispersion Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 125000001931 aliphatic group Chemical group 0.000 description 5
- 239000011230 binding agent Substances 0.000 description 5
- 239000002736 nonionic surfactant Substances 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 5
- 238000007873 sieving Methods 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 230000002776 aggregation Effects 0.000 description 4
- 235000014113 dietary fatty acids Nutrition 0.000 description 4
- 239000000194 fatty acid Substances 0.000 description 4
- 229930195729 fatty acid Natural products 0.000 description 4
- 150000004665 fatty acids Chemical class 0.000 description 4
- 125000001117 oleyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])/C([H])=C([H])\C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 4
- 230000020477 pH reduction Effects 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000005054 agglomeration Methods 0.000 description 3
- 125000002877 alkyl aryl group Chemical group 0.000 description 3
- 229920006318 anionic polymer Polymers 0.000 description 3
- 125000003118 aryl group Chemical group 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000000706 filtrate Substances 0.000 description 3
- 229920006158 high molecular weight polymer Polymers 0.000 description 3
- 230000002209 hydrophobic effect Effects 0.000 description 3
- 229920002401 polyacrylamide Polymers 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 239000013055 pulp slurry Substances 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 125000004429 atom Chemical group 0.000 description 2
- 239000007844 bleaching agent Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000012860 organic pigment Substances 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- 238000004537 pulping Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- QGLWBTPVKHMVHM-KTKRTIGZSA-N (z)-octadec-9-en-1-amine Chemical compound CCCCCCCC\C=C/CCCCCCCCN QGLWBTPVKHMVHM-KTKRTIGZSA-N 0.000 description 1
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Chemical group CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- RSWGJHLUYNHPMX-ONCXSQPRSA-N abietic acid Chemical compound C([C@@H]12)CC(C(C)C)=CC1=CC[C@@H]1[C@]2(C)CCC[C@@]1(C)C(O)=O RSWGJHLUYNHPMX-ONCXSQPRSA-N 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 229920001448 anionic polyelectrolyte Polymers 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 125000005228 aryl sulfonate group Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000003093 cationic surfactant Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001246 colloidal dispersion Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 125000002704 decyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 239000002761 deinking Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004205 dimethyl polysiloxane Substances 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- MOTZDAYCYVMXPC-UHFFFAOYSA-N dodecyl hydrogen sulfate Chemical compound CCCCCCCCCCCCOS(O)(=O)=O MOTZDAYCYVMXPC-UHFFFAOYSA-N 0.000 description 1
- 229940043264 dodecyl sulfate Drugs 0.000 description 1
- JRBPAEWTRLWTQC-UHFFFAOYSA-N dodecylamine Chemical compound CCCCCCCCCCCCN JRBPAEWTRLWTQC-UHFFFAOYSA-N 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 125000005645 linoleyl group Chemical group 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 125000001421 myristyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 125000005702 oxyalkylene group Chemical group 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 125000000913 palmityl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 229920001467 poly(styrenesulfonates) Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229960002796 polystyrene sulfonate Drugs 0.000 description 1
- 239000011970 polystyrene sulfonate Substances 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 150000003335 secondary amines Chemical class 0.000 description 1
- 229960005480 sodium caprylate Drugs 0.000 description 1
- RYYKJJJTJZKILX-UHFFFAOYSA-M sodium octadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCCCC([O-])=O RYYKJJJTJZKILX-UHFFFAOYSA-M 0.000 description 1
- BYKRNSHANADUFY-UHFFFAOYSA-M sodium octanoate Chemical compound [Na+].CCCCCCCC([O-])=O BYKRNSHANADUFY-UHFFFAOYSA-M 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005063 solubilization Methods 0.000 description 1
- 230000007928 solubilization Effects 0.000 description 1
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 125000005425 toluyl group Chemical group 0.000 description 1
- 125000004417 unsaturated alkyl group Chemical group 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
- D21C5/02—Working-up waste paper
- D21C5/025—De-inking
- D21C5/027—Chemicals therefor
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Toxicology (AREA)
- Paper (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7502720A SE406482B (sv) | 1975-03-11 | 1975-03-11 | Forfarande for rening av en vattenhaltig dispersion eller massauppslamning |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2610277A1 DE2610277A1 (de) | 1976-09-23 |
| DE2610277B2 DE2610277B2 (de) | 1979-12-13 |
| DE2610277C3 true DE2610277C3 (de) | 1980-09-04 |
Family
ID=20323922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2610277A Expired DE2610277C3 (de) | 1975-03-11 | 1976-03-11 | Verfahren zur Entfernung von Druckfarben von Papier und zur Reinigung des dabei entstehenden Abwassers |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US4043908A (enExample) |
| JP (1) | JPS5231563A (enExample) |
| AT (1) | AT357862B (enExample) |
| AU (1) | AU504797B2 (enExample) |
| CA (1) | CA1068019A (enExample) |
| DE (1) | DE2610277C3 (enExample) |
| ES (1) | ES445941A1 (enExample) |
| FI (1) | FI760583A7 (enExample) |
| FR (1) | FR2313500A1 (enExample) |
| GB (1) | GB1546813A (enExample) |
| IT (1) | IT1057340B (enExample) |
| NL (1) | NL7602000A (enExample) |
| NO (1) | NO760840L (enExample) |
| SE (1) | SE406482B (enExample) |
Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4599190A (en) * | 1979-11-13 | 1986-07-08 | Diamond Shamrock Chemicals Company | Composition for drinking secondary fibers |
| SE439787B (sv) * | 1984-03-19 | 1985-07-01 | Berol Kemi Ab | Sett att reducera missfergning och/eller klibbighet vid upparbetning av avfallspapper |
| US4676912A (en) * | 1986-06-26 | 1987-06-30 | International Minerals & Chemical Corp. | Waste liquor disposal methods |
| DE3642362A1 (de) * | 1986-12-11 | 1988-06-16 | Schill & Seilacher | Mittel zur abtrennung dispergierter teilchen aus dispersionen |
| DE3811025A1 (de) * | 1988-03-31 | 1989-10-12 | Gruenau Gmbh Chem Fab | Verfahren zum de-inken von bedrucktem altpapier |
| JPH03504523A (ja) * | 1988-10-26 | 1991-10-03 | ローヌ・プーラン・インコーポレーテッド | リサイクル紙パルプの脱インキ法 |
| DE4007597A1 (de) * | 1990-03-09 | 1991-09-12 | Henkel Kgaa | Wasserloesliche oder wasserdispergierbare, polyetherketten und quaternaere ammoniumgruppen enthaltende verbindungen |
| DE4008894A1 (de) * | 1990-03-20 | 1991-09-26 | Call Hans Peter | Verfahren zur altpapieraufbereitung mit enzymatischer druckfarbenentfernung |
| US5385695A (en) * | 1990-05-15 | 1995-01-31 | Cohen; Elliot | Demulsifier methods employing b-iminodipropionate |
| US5286390A (en) * | 1992-09-30 | 1994-02-15 | Calgon Corporation | Method for treating deink wastes using melamine aldehyde-type polymers |
| US5415733A (en) * | 1993-05-27 | 1995-05-16 | High Point Chemical Corp. | Method of removing hydrophilic ink |
| US5320758A (en) * | 1993-06-29 | 1994-06-14 | Church & Dwight Co., Inc. | Method of recycling amine saponifiers used in cleaning electronic circuit boards |
| US5560805A (en) * | 1993-07-27 | 1996-10-01 | Hoechst Celanese Corporation | Enhanced decolorization of waste paper with selected amines |
| US5385639A (en) * | 1993-08-27 | 1995-01-31 | Hoechst Celanese Corporation | Deinking wastepaper printed with oil-based ink |
| AU677468B2 (en) * | 1994-02-02 | 1997-04-24 | Hercules Incorporated | Felt conditioner for deinked recycled newsprint papermaking systems |
| US5632857A (en) * | 1995-04-04 | 1997-05-27 | Rhone-Poulenc Inc. | Process for removing waterborne flexographic inks from substrates |
| KR100395195B1 (ko) * | 1995-04-05 | 2003-11-14 | 가오가부시끼가이샤 | 탈묵방법 |
| DE19532476A1 (de) * | 1995-09-02 | 1997-03-06 | Winfried Prof Dr Schmidt | Verfahren und Vorrichtung zur Behandlung von ölhaltigen Abwässern, insbesondere zur Trennung von Öl-in-Wasser-Emulsionen |
| JP2958269B2 (ja) * | 1996-06-03 | 1999-10-06 | 花王株式会社 | 脱墨方法 |
| JP3051826B2 (ja) | 1996-06-03 | 2000-06-12 | 花王株式会社 | 脱墨方法 |
| JP3405888B2 (ja) * | 1996-09-25 | 2003-05-12 | 花王株式会社 | 脱墨方法 |
| JP3262517B2 (ja) * | 1996-10-02 | 2002-03-04 | 花王株式会社 | 脱墨方法 |
| US6312559B1 (en) * | 1996-10-02 | 2001-11-06 | Kao Corporation | Deinking process using amine compounds and white water recycling |
| US20050119353A1 (en) * | 2001-09-25 | 2005-06-02 | Detorres Fernando A. | Contaminant eco-remedy and use method |
| CN101939481B (zh) * | 2008-01-22 | 2014-04-02 | 狮王株式会社 | 牛皮纸浆用清洗剂及使用其的牛皮纸浆的制造方法 |
| FR3037084B1 (fr) * | 2015-06-02 | 2020-01-10 | Coatex | Procede de desencrage de papier de recuperation |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2005742A (en) * | 1934-05-25 | 1935-06-25 | Pierre R Hines | Process for deinking imprinted paper |
| FR1472923A (fr) * | 1963-12-30 | 1967-03-17 | Hollifield Corp | Procédé pour clarifier des fluides effluents de déchets provenant du désencrage de papiers imprimés |
-
1975
- 1975-03-11 SE SE7502720A patent/SE406482B/xx unknown
-
1976
- 1976-02-19 AU AU11244/76A patent/AU504797B2/en not_active Expired
- 1976-02-26 NL NL7602000A patent/NL7602000A/xx not_active Application Discontinuation
- 1976-03-08 FI FI760583A patent/FI760583A7/fi not_active Application Discontinuation
- 1976-03-09 IT IT4848676A patent/IT1057340B/it active
- 1976-03-09 AT AT172376A patent/AT357862B/de not_active IP Right Cessation
- 1976-03-10 NO NO760840A patent/NO760840L/no unknown
- 1976-03-10 ES ES445941A patent/ES445941A1/es not_active Expired
- 1976-03-10 FR FR7606842A patent/FR2313500A1/fr active Granted
- 1976-03-10 CA CA247,582A patent/CA1068019A/en not_active Expired
- 1976-03-11 JP JP2563776A patent/JPS5231563A/ja active Pending
- 1976-03-11 US US05/666,104 patent/US4043908A/en not_active Expired - Lifetime
- 1976-03-11 GB GB982076A patent/GB1546813A/en not_active Expired
- 1976-03-11 DE DE2610277A patent/DE2610277C3/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1546813A (en) | 1979-05-31 |
| IT1057340B (it) | 1982-03-10 |
| FR2313500A1 (fr) | 1976-12-31 |
| US4043908A (en) | 1977-08-23 |
| FR2313500B1 (enExample) | 1979-10-05 |
| DE2610277A1 (de) | 1976-09-23 |
| ATA172376A (de) | 1979-12-15 |
| ES445941A1 (es) | 1977-05-16 |
| DE2610277B2 (de) | 1979-12-13 |
| SE406482B (sv) | 1979-02-12 |
| AU1124476A (en) | 1977-08-25 |
| SE7502720L (sv) | 1976-09-13 |
| NL7602000A (nl) | 1976-09-14 |
| AT357862B (de) | 1980-08-11 |
| NO760840L (enExample) | 1976-09-14 |
| JPS5231563A (en) | 1977-03-10 |
| AU504797B2 (en) | 1979-11-01 |
| FI760583A7 (enExample) | 1976-09-12 |
| CA1068019A (en) | 1979-12-11 |
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