EP0857200B1 - Waschmittelzusatz - Google Patents
Waschmittelzusatz Download PDFInfo
- Publication number
- EP0857200B1 EP0857200B1 EP96934550A EP96934550A EP0857200B1 EP 0857200 B1 EP0857200 B1 EP 0857200B1 EP 96934550 A EP96934550 A EP 96934550A EP 96934550 A EP96934550 A EP 96934550A EP 0857200 B1 EP0857200 B1 EP 0857200B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- detergent
- agglomerate
- detergent additive
- optical brightener
- additive according
- 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 - Lifetime
Links
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
- C11D3/40—Dyes ; Pigments
- C11D3/42—Brightening agents ; Blueing agents
-
- 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
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/12—Water-insoluble compounds
- C11D3/124—Silicon containing, e.g. silica, silex, quartz or glass beads
- C11D3/1246—Silicates, e.g. diatomaceous earth
- C11D3/1253—Layer silicates, e.g. talcum, kaolin, clay, bentonite, smectite, montmorillonite, hectorite or attapulgite
- C11D3/126—Layer silicates, e.g. talcum, kaolin, clay, bentonite, smectite, montmorillonite, hectorite or attapulgite in solid compositions
Definitions
- the invention relates to a detergent additive, based of swellable layered silicates.
- FR-A-2 500 475 describes spray-dried detergent additives the 1 to 20% by weight bentonite and optical brighteners can contain.
- An aqueous slurry is used for the production made from the various components. Subsequently this slurry is spray dried.
- DD-220325, 220326, 220327 and 220328 are washing aids known for whiteness enhancement. These contain optical Brightener and non-swellable layered silicates, e.g. the natural mineral magadiite.
- An essential step in the development of highly concentrated Detergent with a high bulk density consists of Omission of fillers or so-called adjusting agents, such as Sodium sulfate.
- DE-C-3 424 987 describes the production of detergent concentrates high bulk density, which is not sodium sulfate included as a set.
- a basic powder is passed through Spray drying, which contains the usual detergent ingredients, such as surfactants, carboxymethyl cellulose (CMC), Sodium polyphosphate, zeolite A, water glass, optical brighteners et al contains.
- the base powder obtained with low bulk density, which is free of sodium sulfate will increase the bulk density is sprayed with further nonionic surfactant and with a separately produced granulate with high Bulk weight mixed dry.
- This product is the optical brighteners on contact, especially oxidation, exposed unprotected by other detergent ingredients.
- optical brightener either processed in the spray product, or it was subsequently added to the tower product as a powder (Spray product) mixed. Is not the optical brightener through a coating created during production or by the presence of thinning, spatially separating and water adsorbing actuators, from the bleaches also contained in the detergent, such as sodium perborate, but especially sodium percarbonate, separated, so optical brighteners can be oxidized. That used up here Bleaching potential stands for the later bleaching effect no longer available in the wash liquor.
- the oxidation product of the optical brightener can turn yellow be colored, which gives the detergent a yellow tint shows, on the other hand, the yellow oxidation product of the brightener substantively on the washing textiles, what to an impairment of the aesthetic aspect, above all white laundry leads.
- the formation preceding the oxidation of the optical brightener of active oxygen in the washing powder is due to a reaction of bleach contained in washing powder, especially when containing percarbonate as a bleach is.
- TAED tetraacetylethylenediamine
- the detergent agglomerates of high bulk density generally have poor dispersibility; this can be improved by adding dispersing and disintegrating agents which swell in contact with water and blow up or loosen the agglomerates, which leads to improved solubility and availability of the active components.
- dispersing and disintegrating agents which swell in contact with water and blow up or loosen the agglomerates, which leads to improved solubility and availability of the active components.
- the invention had the object of adding a detergent to provide in agglomerate form (granulate form), which at least one swellable layered silicate and an optical one Brightener contains which with good mechanical stability decays well in water and in which the optical brightener is present in a homogeneous distribution and against oxidation by the Oxidizing agent contained in the detergent is protected.
- the invention relates to a detergent additive in non-spray-dried agglomerate form according to claim 1.
- the optical brightener Due to the close contact of the optical brightener with the Layered silicate is used during the oxidation processes Storage of the detergent is reliably removed and it will when using the detergent, the "brightener spotting" on the Avoid laundry. It is believed that the optical brightener at least partially between the layers of layered silicate is stored because the discrete Brightener particles in the detergent additive have largely disappeared and the layered silicate particles in the fluorescence microscope appear homogeneously colored by the brightener.
- the weight ratio is preferably swellable Layered silicate (s): optical brightener about 200-7: 1, in particular 100-10: 1st
- the swellable layered silicate is a natural one or synthetic clay mineral.
- the swellable clay mineral is preferably montmorillonite, beidellite, saponite or hectorite.
- Montmorillonite can be in sodium or calcium form or in the form of a calcium montmorillonite ion-exchanged with soda be used. It can also be synthetically made Clay minerals from the above group be used.
- the layered silicate is preferably in an amount of 90 to 99 wt .-% used.
- the swellable layered silicates have the property under intra-crystalline swelling polar agents between the Intercalate silicate lamellae, which can be seen at higher concentrations noticeable in an increase in the layer spacing makes.
- the optical brightener is preferably a stilbene derivative But it can also benzoxazole, coumarin and pyrazoline derivatives be used. These products generally have an anionic dye residue, which is why it was surprising that they are between the negatively charged layers of the swellable Layered silicate can be stored.
- Suitable optical brighteners are, for example
- the agglomerate particles of the detergent additive are preferably coated with synthetic zeolite or layered sodium silicate (preferably about 3 to 15% by weight), which increases the whiteness of the agglomerate is improved.
- Further preferred alternatives for concealing the intrinsic color of the agglomerates consist of dyeing with dyes customary in detergents, in particular pigment dyes, for example Unidisperse® blue BE (commercial product from Ciba-Geigy) (preferably about 0.01 to 0.5% by weight), or in the addition of colored active substances (preferably about 0.3 to 5% by weight), for example the photo bleach Tinolux® BB 5 (commercial product from Ciba-Geigy).
- dyes customary in detergents in particular pigment dyes, for example Unidisperse® blue BE (commercial product from Ciba-Geigy) (preferably about 0.01 to 0.5% by weight), or in the addition of colored active substances (preferably about 0.3 to 5% by weight), for example the photo bleach Tinolux® BB 5 (commercial product from Ciba-Geigy).
- the agglomerate preferably has a bulk density of more than about 700 g / liter and is due to this high bulk density Compatible with highly concentrated, high density detergents.
- the invention further relates to a method for the production of the detergent additive described above in Agglomerate form, which is characterized in that the optical brighteners as an aqueous slurry to the (the) Layered silicate (s) exist.
- the layered silicate (s) can be, for example, in an intensive mixer, e.g. in an Eirich mixer (mixed together). Then the optical brightener (preferably as an aqueous dispersion) sprayed with swirling to the powder component. in this connection an agglomerate forms, which is sieved and added of powdered zeolite superficially to improve the Whiteness is coated.
- an intensive mixer e.g. in an Eirich mixer (mixed together).
- the optical brightener preferably as an aqueous dispersion
- an agglomerate forms, which is sieved and added of powdered zeolite superficially to improve the Whiteness is coated.
- the agglomerate obtained is readily dispersible in water.
- the optical brightener is protected from oxidation and after the dissolution of the agglomerate in the wash liquor is fully available. Due to the presence of the layer silicate swellable in water there is no "brightener spotting".
- the agglomerate can be manufactured in brightener-free production facilities Detergents are added subsequently, so that the systems not to be contaminated with brighteners.
- the invention further relates to a detergent containing the detergent additive described above in addition to usual Detergent components such as anionic and nonionic Surfactants, builders (polymers), polymers (co-builders), Graying inhibitors, bleaching agents and bleach activators, Enzymes, foam inhibitors, fragrances and / or Dyes.
- Detergent components such as anionic and nonionic Surfactants, builders (polymers), polymers (co-builders), Graying inhibitors, bleaching agents and bleach activators, Enzymes, foam inhibitors, fragrances and / or Dyes.
- the powdery layered silicate becomes with intensive swirling the optical brightener or a mixture of different optical brightener as an aqueous dispersion (slurry) added.
- the mixture agglomerates at a water content of approximately 20 to 30 wt .-%, based on the total mixture.
- a suitable dryer preferably in a Fluid bed dryer to a residual water content of about 2 to 15% by weight, preferably dried from about 5 to 10% by weight becomes.
- the agglomerate obtained is broken up with a sieving machine a particle size of about 0.2 to 2.5 mm, preferably of 0.5 to 1.7 mm, sieved. The fraction ⁇ 0.2 mm becomes again Agglomeration fed. Coarse grain that forms is also removed crushed with a roller crusher and again on the screening plant given.
- the sieved agglomerate is placed in a drum mixer (for Example in a drum mixer from Telschig) or one Given granulation plate. Then about 3 to 15 wt .-%, preferably about 5 to 10% by weight synthetic zeolite in fine-grained form added.
- the average particle size of this Powder should preferably be ⁇ 20 ⁇ m, in particular approximately 3 to 10 ⁇ m.
- the detergent additive produced by the process described also has the following advantages:
- the bulk density is greater than 700 g / liter, so that it with Detergent with high bulk density is compatible.
- the agglomerates quickly disintegrate in water. It won't Whitening spotting observed on the laundry.
- the optical brightener is fully available in the detergent.
- the agglomerate is mechanically stable. The agglomerate can be subsequently Mix in detergent, which makes up essential parts of the detergent production system not contaminated with optical brighteners become.
- a detergent additive was produced according to the following recipe: A Bentonite (Laundrosil® DGA, Süd-Chemie AG) 98% by weight B Optical brightener (Tinopal® DMS-X hc) 2% by weight
- the loss in% was calculated from the brightener content determined before and after the storage test by means of HPLC analysis. The results are shown in Table I. Brighteners use Loss in% after 8 weeks about detergent additive 23% about spray product 55%
- the decrease in the brightener content due to oxidative degradation is when using the detergent additive according to Example 1 clearly smaller compared to a detergent of the same gross composition, where the brightener is included in the spray product is.
- a detergent additive was produced according to the following recipe: A Bentonite (Laundrosil® DGA, Süd-Chemie AG) 99% by weight B Optical brightener (Tinopal® -CBS-X) 1% by weight
- the detergent additive was subjected to a spotting test on pre-lightened cotton fabric as described in Example 1.
- the evaluation is as follows: In daylight very good Under UV light acceptable.
- the brighteners are broken down less than in a detergent of the same gross composition, where the brightener is included in the spray product is.
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)
- Inorganic Chemistry (AREA)
- Detergent Compositions (AREA)
Description
(Handelsbezeichnung Tinopal® TAS-X der Firma Ciba-Geicy) Typ: Dimorpholin
(Handelsbezeichnung Tinopal® DMS-X H.C.) Typ: Aminostilben
(Handelsbezeichnung Tinopal® 5 BMS-X)
A | Bentonit (Laundrosil® DGA, Süd-Chemie AG) | 98 Gew.-% |
B | Optischer Aufheller (Tinopal® DMS-X h.c.) | 2 Gew.-% |
Am Tageslicht | sehr gut |
Unter UV-Licht | sehr gut |
Aufheller-Einsatz | Verlust in % nach 8 Wochen |
über Waschmittelzusatz | 23% |
über Sprühprodukt | 55% |
A | Bentonit (Laundrosil® DGA, Süd-Chemie AG) | 99 Gew.-% |
B | Optischer Aufheller (Tinopal® -CBS-X) | 1 Gew.-% |
- 1980 g
- Laundrosil® DGA Pulver
- 60 g
- Tinopal® CBS Slurry 33 (entsprechend 20 g Tinopal® CBS-X)
- 440 g
- Wasser
Am Tageslicht | sehr gut |
Unter UV-Licht | akzeptabel. |
Aufheller-Einsatz | Verlust in % nach 8 Wochen |
über Waschmittelzusatz | 27% |
über Sprühprodukt | 37% |
Claims (12)
- Waschmittelzusatz in nicht sprühgetrockneter Agglomeratform, dadurch gekennzeichnet, daß er mindestens ein quellfähiges Schichtsilicat, das ein natürliches oder synthetisches Tonmineral darstellt, und mindestens einen optischen Aufheller in innigem Kontakt miteinander enthält, wobei der optische Aufheller mindestens teilweise zwischen den Schichten des Schichtsilicats eingelagert ist.
- Waschmittelzusatz nach Anspruch 1, dadurch gekennzeichnet, daß das Gewichtsverhältnis quellfähige(s) Schichtsilicat(e) : optische(r) Aufheller etwa 200-7:1, vorzugsweise etwa 100-10:1 beträgt.
- Waschmittelzusatz nach Anspruch 1, dadurch gekennzeichnet, daß das quellfähige Tonmineral Montmorillonit, Beidellit, Saponit oder Hectorit darstellt.
- Waschmittelzusatz nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der optische Aufheller ein Stilben-Derivat darstellt.
- Waschmittelzusatz nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Agglomerat-Teilchen mit synthetischem Zeolith oder schichtförmigem Natriumsilicat umhüllt sind.
- Waschmittelzusatz nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Agglomerat-Teilchen mit einem Farbstoff, vorzugsweise mit einem Pigmentfarbstoff, angefärbt sind.
- Waschmittelzusatz nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß er neben dem quellfähigen Schichtsilicat und dem optischen Aufheller, eine Aktivsubstanz, vorzugsweise ein Photobleichmittel, enthält.
- Waschmittelzusatz nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß das Agglomerat eine Schüttdichte von mehr als etwa 700 g/Liter aufweist.
- Verfahren zur Herstellung eines Waschmittelzusatzes in Form eines Agglomerats nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß man den (die) optischen Aufheller als wässrige Slurry zu dem (den) Schichtsilicat(en) gibt.
- Verfahren nach Anspruch 9, dadurch gekennzeichnet, daß man ein Agglomerat mit einer Teilchengröße von etwa 0,2 bis 2,5 mm und einem Restwassergehalt von 2 bis 15 Gew.-% bildet.
- Verfahren nach Anspruch 9 oder 10, dadurch gekennzeichnet, daß man das erhaltene Agglomerat (a) mit etwa 3 bis 15 Gew. -% eines synthetischen Zeoliths oder Schichtsilicats umhüllt, (b) mit etwa 0,01 bis 0,5 Gew.-% eines Farbstoff, insbesondere eines Pigmentfarbstoffs, anfärbt oder (c) mit etwa 0,3 bis 5 Gew.-% einer gefärbten Aktivsubstanz, vorzugsweise eines Photobleichmittels, behandelt.
- Waschmittel, enthaltend einen Waschmittelzusatz nach einem der Ansprüche 1 bis 8 bzw. hergestellt nach einem der Ansprüche 9 bis 11, neben üblichen Maschmittelkomponenten.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19538029A DE19538029A1 (de) | 1995-10-12 | 1995-10-12 | Waschmittelzusatz |
DE19538029 | 1995-10-12 | ||
PCT/EP1996/004336 WO1997013830A1 (de) | 1995-10-12 | 1996-10-05 | Waschmittelzusatz |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0857200A1 EP0857200A1 (de) | 1998-08-12 |
EP0857200B1 true EP0857200B1 (de) | 2002-03-20 |
Family
ID=7774675
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96934550A Expired - Lifetime EP0857200B1 (de) | 1995-10-12 | 1996-10-05 | Waschmittelzusatz |
Country Status (8)
Country | Link |
---|---|
US (1) | US6541440B2 (de) |
EP (1) | EP0857200B1 (de) |
JP (1) | JP3453388B2 (de) |
AT (1) | ATE214726T1 (de) |
DE (2) | DE19538029A1 (de) |
ES (1) | ES2174110T3 (de) |
RU (1) | RU2175002C2 (de) |
WO (1) | WO1997013830A1 (de) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0905317B1 (de) * | 1997-09-16 | 2009-12-23 | Basf Se | Verfahren zum optisch Aufhellen von Papier |
NZ331438A (en) * | 1997-09-16 | 2000-01-28 | Ciba Sc Holding Ag | A method of increasing the whiteness of paper by using a formulation containing a swellale layered silicate and an optical brightener 4,4-bis-(triazinylamino)-stilbene-2,2-disulphonic acid |
US6790814B1 (en) * | 1999-12-03 | 2004-09-14 | Procter & Gamble Company | Delivery system having encapsulated porous carrier loaded with additives, particularly detergent additives such as perfumes |
EP1392925A1 (de) * | 2001-05-29 | 2004-03-03 | Ciba SC Holding AG | Optischer aufheller für papier |
KR100430332B1 (ko) * | 2001-06-22 | 2004-05-04 | 주식회사 대하맨텍 | 형광증백제 함유 유무기 복합체 및 그 제조방법 |
AU2003227595A1 (en) * | 2002-04-19 | 2003-11-03 | Ciba Specialty Chemicals Holding Inc. | Foam control agents |
JP4115827B2 (ja) * | 2002-12-26 | 2008-07-09 | ライオン株式会社 | 洗剤組成物 |
DE10334045A1 (de) * | 2003-07-25 | 2005-02-10 | Clariant Gmbh | Additive für Wasch- und Reinigungsmittel |
CN102256587B (zh) | 2008-11-20 | 2016-01-20 | 荷兰联合利华有限公司 | 个人清洁组合物 |
BR112012003533A2 (pt) | 2009-08-17 | 2017-05-23 | Unilever Nv | " composição de limpeza sólida moldada e processo para preparar um composição de limpeza sólida moldada moída e trabalhada " |
MX2012003568A (es) * | 2009-09-24 | 2012-04-30 | Unilever Nv | Un fluorescente particulado y un proceso para preparar el mismo. |
US8470760B2 (en) | 2010-05-28 | 2013-06-25 | Milliken 7 Company | Colored speckles for use in granular detergents |
US8476216B2 (en) * | 2010-05-28 | 2013-07-02 | Milliken & Company | Colored speckles having delayed release properties |
Family Cites Families (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4196103A (en) * | 1971-06-18 | 1980-04-01 | Colgate-Palmolive Company | Colored detergents |
DE2263940C2 (de) * | 1972-12-29 | 1982-04-08 | Henkel KGaA, 4000 Düsseldorf | Zur Anwendung mit Textilwaschmitteln geeignete Aufheller-Tablette |
AT335031B (de) * | 1974-01-17 | 1977-02-25 | Degussa | Optische aufheller enthaltende gemische und verfahren zu deren herstellung |
GB1572815A (en) * | 1977-05-06 | 1980-08-06 | Procter & Gamble | Process for making detergent compositions |
US4196104A (en) * | 1977-09-26 | 1980-04-01 | The Procter & Gamble Company | Process for producing antistatic, fabric-softening detergent composition |
DE2856087A1 (de) * | 1978-12-23 | 1980-07-10 | Henkel Kgaa | Verfahren zur herstellung weisser, optische aufheller und kationenaustauschfaehige alumosilikate enthaltender, pulverfoermiger waschmittel |
US4395342A (en) * | 1980-06-06 | 1983-07-26 | The Procter & Gamble Company | Granular fabric softening composition |
AU549000B2 (en) * | 1981-02-26 | 1986-01-09 | Colgate-Palmolive Pty. Ltd. | Base beads for detergent compositions |
US4399049A (en) | 1981-04-08 | 1983-08-16 | The Procter & Gamble Company | Detergent additive compositions |
US4488972A (en) * | 1982-04-08 | 1984-12-18 | Colgate-Palmolive Company | Bentonite agglomerates |
US4421657A (en) * | 1982-04-08 | 1983-12-20 | Colgate-Palmolive Company | Heavy duty laundry softening detergent composition and method for manufacture thereof |
US4536316A (en) * | 1983-06-01 | 1985-08-20 | Colgate-Palmolive Co. | Fabric softening composition containing surface modified clay |
GB8321683D0 (en) * | 1983-08-11 | 1983-09-14 | Procter & Gamble | Detergent with fabric softener |
DD220325A1 (de) * | 1983-09-05 | 1985-03-27 | Bitterfeld Chemie | Waschhilfsmittel |
DD220328A1 (de) * | 1983-09-05 | 1985-03-27 | Bitterfeld Chemie | Waschhilfsmittel zur weissgradverstaerkung |
DD220326A1 (de) * | 1983-09-05 | 1985-03-27 | Bitterfeld Chemie | Weissgradverstaerker |
DD220327A1 (de) * | 1983-09-05 | 1985-03-27 | Bitterfeld Chemie | Weisstoener enthaltendes gemisch |
GB8502032D0 (en) * | 1985-01-28 | 1985-02-27 | Unilever Plc | Detergent powder |
DE3526405A1 (de) * | 1985-07-24 | 1987-02-05 | Henkel Kgaa | Schichtsilikate mit beschraenktem quellvermoegen, verfahren zu ihrer herstellung und ihre verwendung in wasch- und reinigungsmitteln |
US5318714A (en) | 1988-03-14 | 1994-06-07 | Novo Nordisk A/S | Stabilized particulate composition |
WO1989008694A1 (en) * | 1988-03-14 | 1989-09-21 | Novo-Nordisk A/S | Granulate detergent enzyme product, method for production thereof, use thereof, and detergent containing such product |
US5030377A (en) | 1988-11-11 | 1991-07-09 | Kao Corporation | Detergent compositions containing starch debranching enzymes |
DE4009618A1 (de) * | 1990-03-26 | 1991-10-02 | Henkel Kgaa | Spruehgetrocknetes, avivierend wirkendes waschmitteladditiv |
US5691294A (en) * | 1993-03-30 | 1997-11-25 | The Procter & Gamble Company | Flow aids for detergent powders comprising sodium aluminosilicate and hydrophobic silica |
GB9323250D0 (en) | 1993-11-11 | 1994-01-05 | Unilever Plc | Process for the production of a detergent composition |
JP4033896B2 (ja) * | 1993-11-19 | 2008-01-16 | ザ、プロクター、エンド、ギャンブル、カンパニー | アミンオキシドおよびサルフェート界面活性剤を含有する洗浄剤組成物 |
US5478502A (en) * | 1994-02-28 | 1995-12-26 | The Procter & Gamble Company | Granular detergent composition containing hydrotropes and optimum levels of anoionic surfactants for improved solubility in cold temperature laundering solutions |
-
1995
- 1995-10-12 DE DE19538029A patent/DE19538029A1/de not_active Withdrawn
-
1996
- 1996-10-05 WO PCT/EP1996/004336 patent/WO1997013830A1/de active IP Right Grant
- 1996-10-05 DE DE59608930T patent/DE59608930D1/de not_active Expired - Fee Related
- 1996-10-05 ES ES96934550T patent/ES2174110T3/es not_active Expired - Lifetime
- 1996-10-05 EP EP96934550A patent/EP0857200B1/de not_active Expired - Lifetime
- 1996-10-05 JP JP51469297A patent/JP3453388B2/ja not_active Expired - Fee Related
- 1996-10-05 RU RU98108290/04A patent/RU2175002C2/ru not_active IP Right Cessation
- 1996-10-05 AT AT96934550T patent/ATE214726T1/de not_active IP Right Cessation
- 1996-10-05 US US09/051,573 patent/US6541440B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
ES2174110T3 (es) | 2002-11-01 |
US6541440B2 (en) | 2003-04-01 |
DE59608930D1 (de) | 2002-04-25 |
WO1997013830A1 (de) | 1997-04-17 |
EP0857200A1 (de) | 1998-08-12 |
JPH11513430A (ja) | 1999-11-16 |
RU2175002C2 (ru) | 2001-10-20 |
DE19538029A1 (de) | 1997-04-17 |
US20020039986A1 (en) | 2002-04-04 |
ATE214726T1 (de) | 2002-04-15 |
JP3453388B2 (ja) | 2003-10-06 |
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