DE2751924A1 - Waschmittelpulver und verfahren zu ihrer herstellung - Google Patents
Waschmittelpulver und verfahren zu ihrer herstellungInfo
- Publication number
- DE2751924A1 DE2751924A1 DE19772751924 DE2751924A DE2751924A1 DE 2751924 A1 DE2751924 A1 DE 2751924A1 DE 19772751924 DE19772751924 DE 19772751924 DE 2751924 A DE2751924 A DE 2751924A DE 2751924 A1 DE2751924 A1 DE 2751924A1
- Authority
- DE
- Germany
- Prior art keywords
- spray
- percent
- weight
- cooh
- slurry
- 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.)
- Ceased
Links
- 239000003599 detergent Substances 0.000 title description 10
- 238000004519 manufacturing process Methods 0.000 title description 5
- 239000000843 powder Substances 0.000 claims description 22
- 239000000203 mixture Substances 0.000 claims description 17
- 239000002736 nonionic surfactant Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 16
- 239000002002 slurry Substances 0.000 claims description 13
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 9
- 238000001694 spray drying Methods 0.000 claims description 9
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 5
- 125000004432 carbon atom Chemical group C* 0.000 claims description 5
- 230000002209 hydrophobic effect Effects 0.000 claims description 5
- 125000000896 monocarboxylic acid group Chemical group 0.000 claims description 5
- 125000000217 alkyl group Chemical group 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 239000004094 surface-active agent Substances 0.000 claims description 4
- 125000003342 alkenyl group Chemical group 0.000 claims description 3
- 150000003863 ammonium salts Chemical class 0.000 claims description 3
- 239000004615 ingredient Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims 1
- 238000002360 preparation method Methods 0.000 claims 1
- 150000001298 alcohols Chemical class 0.000 description 13
- 239000000463 material Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 description 3
- 150000001336 alkenes Chemical class 0.000 description 3
- 239000007844 bleaching agent Substances 0.000 description 3
- 239000001768 carboxy methyl cellulose Substances 0.000 description 3
- 150000001991 dicarboxylic acids Chemical class 0.000 description 3
- 229910010272 inorganic material Inorganic materials 0.000 description 3
- 239000011147 inorganic material Substances 0.000 description 3
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 description 3
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 description 3
- 235000019832 sodium triphosphate Nutrition 0.000 description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 2
- 239000004435 Oxo alcohol Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 239000004115 Sodium Silicate Substances 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- 150000008064 anhydrides Chemical class 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical compound CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 description 2
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 229920001983 poloxamer Polymers 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 150000003138 primary alcohols Chemical class 0.000 description 2
- 150000003333 secondary alcohols Chemical class 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229940045872 sodium percarbonate Drugs 0.000 description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- 229910052911 sodium silicate Inorganic materials 0.000 description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 description 2
- 235000011152 sodium sulphate Nutrition 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 1
- DJRLQMPBJSLUED-UHFFFAOYSA-M C(CCC(=O)[O-])(=O)OC=CCCCCCCCCCCCCCC.[Na+] Chemical compound C(CCC(=O)[O-])(=O)OC=CCCCCCCCCCCCCCC.[Na+] DJRLQMPBJSLUED-UHFFFAOYSA-M 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
- QZXSMBBFBXPQHI-UHFFFAOYSA-N N-(dodecanoyl)ethanolamine Chemical compound CCCCCCCCCCCC(=O)NCCO QZXSMBBFBXPQHI-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- 108010056079 Subtilisins Proteins 0.000 description 1
- 102000005158 Subtilisins Human genes 0.000 description 1
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical compound C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- -1 alkyl phosphates Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- VTIIJXUACCWYHX-UHFFFAOYSA-L disodium;carboxylatooxy carbonate Chemical compound [Na+].[Na+].[O-]C(=O)OOC([O-])=O VTIIJXUACCWYHX-UHFFFAOYSA-L 0.000 description 1
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 1
- 238000007046 ethoxylation reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000007850 fluorescent dye Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 238000010470 malonic ester synthesis reaction Methods 0.000 description 1
- 108010003855 mesentericopeptidase Proteins 0.000 description 1
- 239000004200 microcrystalline wax Substances 0.000 description 1
- 235000019808 microcrystalline wax Nutrition 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 235000012149 noodles Nutrition 0.000 description 1
- 238000009896 oxidative bleaching Methods 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 229910001948 sodium oxide Inorganic materials 0.000 description 1
- 229960001922 sodium perborate Drugs 0.000 description 1
- 229940048086 sodium pyrophosphate Drugs 0.000 description 1
- MWNQXXOSWHCCOZ-UHFFFAOYSA-L sodium;oxido carbonate Chemical compound [Na+].[O-]OC([O-])=O MWNQXXOSWHCCOZ-UHFFFAOYSA-L 0.000 description 1
- YKLJGMBLPUQQOI-UHFFFAOYSA-M sodium;oxidooxy(oxo)borane Chemical compound [Na+].[O-]OB=O YKLJGMBLPUQQOI-UHFFFAOYSA-M 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 239000000375 suspending agent Substances 0.000 description 1
- 239000003760 tallow Substances 0.000 description 1
- FRPJTGXMTIIFIT-UHFFFAOYSA-N tetraacetylethylenediamine Chemical compound CC(=O)C(N)(C(C)=O)C(N)(C(C)=O)C(C)=O FRPJTGXMTIIFIT-UHFFFAOYSA-N 0.000 description 1
- HLZKNKRTKFSKGZ-UHFFFAOYSA-N tetradecan-1-ol Chemical compound CCCCCCCCCCCCCCO HLZKNKRTKFSKGZ-UHFFFAOYSA-N 0.000 description 1
- 235000019818 tetrasodium diphosphate Nutrition 0.000 description 1
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2075—Carboxylic acids-salts thereof
- C11D3/2082—Polycarboxylic acids-salts thereof
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/72—Ethers of polyoxyalkylene glycols
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D11/00—Special methods for preparing compositions containing mixtures of detergents
- C11D11/02—Preparation in the form of powder by spray drying
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Detergent Compositions (AREA)
- Manufacturing Of Micro-Capsules (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB49425/76A GB1538607A (en) | 1976-11-26 | 1976-11-26 | Process for manufacture of detergent powders |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2751924A1 true DE2751924A1 (de) | 1978-06-01 |
Family
ID=10452301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19772751924 Ceased DE2751924A1 (de) | 1976-11-26 | 1977-11-21 | Waschmittelpulver und verfahren zu ihrer herstellung |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US4140650A (enExample) |
| AT (1) | AT363573B (enExample) |
| BE (1) | BE861022A (enExample) |
| CA (1) | CA1087475A (enExample) |
| CH (1) | CH630114A5 (enExample) |
| DE (1) | DE2751924A1 (enExample) |
| ES (1) | ES464451A1 (enExample) |
| FR (1) | FR2372227A1 (enExample) |
| GB (1) | GB1538607A (enExample) |
| IT (1) | IT1091250B (enExample) |
| NL (1) | NL7713053A (enExample) |
| NO (1) | NO148748C (enExample) |
| SE (1) | SE425747B (enExample) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4332692A (en) * | 1979-02-28 | 1982-06-01 | The Procter & Gamble Company | Laundering with a nonionic detergent system at a temperature between the cloud point and the phase coalescence temperatures |
| PH20653A (en) * | 1981-03-23 | 1987-03-16 | Unilever Nv | Process for preparing low silicate detergent compositions |
| US4375422A (en) * | 1981-11-12 | 1983-03-01 | Lever Brothers Company | Homogeneous detergent containing nonionic and surface active iminodipropionate |
| US4416792A (en) * | 1981-11-12 | 1983-11-22 | Lever Brothers Company | Iminodipropionate containing detergent compositions |
| US4552681A (en) * | 1983-12-10 | 1985-11-12 | Henkel Kommanditgesellschaft Auf Aktien | Granular, free-flowing detergent component and method for its production |
| GB8511089D0 (en) * | 1985-05-01 | 1985-06-12 | Procter & Gamble | Cleaning compositions |
| US5456854A (en) * | 1992-06-19 | 1995-10-10 | Amway Corporation | Dispensible powder detergent |
| EP0653481A1 (en) * | 1993-11-11 | 1995-05-17 | The Procter & Gamble Company | Granular detergent composition |
| US5756445A (en) * | 1993-11-11 | 1998-05-26 | The Proctor & Gamble Company | Granular detergent composition comprising a low bulk density component |
| WO1997033958A1 (en) * | 1996-03-15 | 1997-09-18 | Amway Corporation | Discrete whitening agent particles, method of making, and powder detergent containing same |
| US5714450A (en) * | 1996-03-15 | 1998-02-03 | Amway Corporation | Detergent composition containing discrete whitening agent particles |
| WO1997033957A1 (en) * | 1996-03-15 | 1997-09-18 | Amway Corporation | Powder detergent composition having improved solubility |
| US5714451A (en) * | 1996-03-15 | 1998-02-03 | Amway Corporation | Powder detergent composition and method of making |
| US6177397B1 (en) | 1997-03-10 | 2001-01-23 | Amway Corporation | Free-flowing agglomerated nonionic surfactant detergent composition and process for making same |
| US10266745B2 (en) | 2017-02-03 | 2019-04-23 | Saudi Arabian Oil Company | Anti-bit balling drilling fluids, and methods of making and use thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT316714B (de) * | 1970-07-10 | 1974-07-25 | Unilever Nv | Verfahren zur Herstellung von Wasch- und Reinigungsmitteln |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO121968C (enExample) * | 1966-06-23 | 1977-06-13 | Mo Och Domsjoe Ab | |
| DK130417A (enExample) | 1968-08-08 | |||
| US3579453A (en) * | 1968-11-12 | 1971-05-18 | Rohm & Haas | Alkali-soluble surfactant consisting of substituted succinic acid-nonionic ethoxylate blends |
| GB1365674A (en) * | 1971-09-30 | 1974-09-04 | Unilever Ltd | Production of detergent compositions |
| US3849327A (en) * | 1971-11-30 | 1974-11-19 | Colgate Palmolive Co | Manufacture of free-flowing particulate heavy duty synthetic detergent composition containing nonionic detergent and anti-redeposition agent |
| FR2238752A1 (en) * | 1973-07-27 | 1975-02-21 | Unilever Nv | Powder detergent prepn - with a two stage drying process |
| US3962149A (en) * | 1973-10-12 | 1976-06-08 | Colgate-Palmolive Company | Non-phosphate spray dried detergents containing dicarboxylic acid salts |
| GB1528171A (en) * | 1975-01-06 | 1978-10-11 | Diamond Shamrock Europ | Foaming hard surface cleaner formulations |
-
1976
- 1976-11-26 GB GB49425/76A patent/GB1538607A/en not_active Expired
-
1977
- 1977-11-21 BE BE182786A patent/BE861022A/xx not_active IP Right Cessation
- 1977-11-21 DE DE19772751924 patent/DE2751924A1/de not_active Ceased
- 1977-11-23 AT AT0839577A patent/AT363573B/de not_active IP Right Cessation
- 1977-11-24 ES ES464451A patent/ES464451A1/es not_active Expired
- 1977-11-24 NO NO774030A patent/NO148748C/no unknown
- 1977-11-24 SE SE7713321A patent/SE425747B/sv unknown
- 1977-11-25 FR FR7735571A patent/FR2372227A1/fr active Granted
- 1977-11-25 CH CH1449877A patent/CH630114A5/de not_active IP Right Cessation
- 1977-11-25 IT IT69672/77A patent/IT1091250B/it active
- 1977-11-25 CA CA291,768A patent/CA1087475A/en not_active Expired
- 1977-11-25 US US05/854,943 patent/US4140650A/en not_active Expired - Lifetime
- 1977-11-28 NL NL7713053A patent/NL7713053A/xx not_active Application Discontinuation
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT316714B (de) * | 1970-07-10 | 1974-07-25 | Unilever Nv | Verfahren zur Herstellung von Wasch- und Reinigungsmitteln |
Also Published As
| Publication number | Publication date |
|---|---|
| NO148748B (no) | 1983-08-29 |
| CA1087475A (en) | 1980-10-14 |
| AT363573B (de) | 1981-08-10 |
| GB1538607A (en) | 1979-01-24 |
| CH630114A5 (de) | 1982-05-28 |
| ATA839577A (de) | 1981-01-15 |
| BE861022A (fr) | 1978-05-22 |
| US4140650A (en) | 1979-02-20 |
| ES464451A1 (es) | 1979-01-01 |
| NO774030L (no) | 1978-05-29 |
| IT1091250B (it) | 1985-07-06 |
| NL7713053A (nl) | 1978-05-30 |
| FR2372227A1 (fr) | 1978-06-23 |
| NO148748C (no) | 1983-12-14 |
| SE7713321L (sv) | 1978-05-27 |
| FR2372227B1 (enExample) | 1982-06-18 |
| SE425747B (sv) | 1982-11-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8110 | Request for examination paragraph 44 | ||
| 8131 | Rejection |