WO1996014391A1 - Verfahren zur herstellung von wasch- und reinigungsmitteltabletten durch mikrowellen- und heissluftbehandlung - Google Patents
Verfahren zur herstellung von wasch- und reinigungsmitteltabletten durch mikrowellen- und heissluftbehandlung Download PDFInfo
- Publication number
- WO1996014391A1 WO1996014391A1 PCT/EP1995/004242 EP9504242W WO9614391A1 WO 1996014391 A1 WO1996014391 A1 WO 1996014391A1 EP 9504242 W EP9504242 W EP 9504242W WO 9614391 A1 WO9614391 A1 WO 9614391A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hot air
- air treatment
- microwave
- tablets
- minutes
- Prior art date
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
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/0047—Detergents in the form of bars or tablets
-
- 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
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/0047—Detergents in the form of bars or tablets
- C11D17/0065—Solid detergents containing builders
- C11D17/0073—Tablets
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S159/00—Concentrating evaporators
- Y10S159/26—Electric field
Definitions
- the invention relates to a method for producing detergent tablets using microwave technology and hot air treatment.
- hydrated under certain conditions with regard to temperature, pressure or relative humidity of the atmosphere to which the raw material is exposed or with which the raw material is in equilibrium is understood.
- the term “hydrated” is also defined in PCT / EP94 / 01330, in general, hydrated starting materials are those which contain bound crystal water or which are capable of water added from the outside to bind at least partially as water of crystallization or also those substances which do not form defined hydrates but are able to bind water, for example alkali metal hydroxides.
- microwaves is understood to mean the entire frequency range between 3 and 300,000 MHz, which thus also includes the radio wave range of 3 to 300 MHz in addition to the actual microwave range of above 300 MHz.
- macrosolids can be produced, which in addition to tablets also include blocks, for example.
- the premixes are connected to one another at the contact points by local melting / sintering caused by the microwave radiation.
- the cavities that exist between the individual premix components prior to irradiation with microwaves result in a high porosity of the resulting tablet and thus contribute to improving the dissolving properties of the tablet.
- premix components So that local premixing of the premix components is possible, at least some of them must have sintering properties on the surface. For this purpose, it is necessary that the premix components themselves or their surface contain sufficient water so that the contact points on the premix components are fused by heating this water. According to the teaching of the international patent application PCT / EP94 / 01330, at least part of the mixture to be irradiated with microwaves must be in hydrated form.
- tablettes is therefore not restricted to a specific spatial shape; in principle, any conceivable three-dimensional shape is possible, depending on the external shape of the powdery or granular premixes, e.g. is imposed by the container used.
- the object of the present invention is therefore to find a method in which the above-mentioned. Disadvantages do not occur, i.e. in which tablets are obtained which have a high breaking strength and at the same time have no charring.
- the object is achieved in that the premix is treated with hot air at a temperature of 50 ° C. to 300 ° C., preferably 100 ° C. to 250 ° C., in particular 150 ° C. to 220 ° C., during the irradiation process with microwaves.
- Premix is to be understood as the powdery and / or granular mixture of the detergent or detergent components.
- all substances which are normally used for the production of solid detergents or cleaning agents for textiles and hard surfaces can be considered as individual components.
- Suitable structural substances are, for example, amorphous silicates such as metasilicates or water glasses, phosphates, alkali carbonates, alkali sulfates, zeolites, but also organic components such as water-containing citrates, for example sodium citrate dihydrate, or water-containing acetates, for example sodium acetate trihydrate.
- Suitable substitutes or partial substitutes for Phosphates and zeolites are crystalline, layered sodium silicates of the general formula NaMSi x ⁇ 2 ⁇ + ⁇ , yH2 ⁇ , where M is sodium or hydrogen, x is a number from 1.9 to 4 and y is a number from 0 to 20 and preferred values for x 2 , 3 or 4 are.
- Such crystalline layered silicates are described, for example, in European patent application EP-A-0 164 514.
- Preferred crystalline layered silicates are those in which M represents sodium and x assumes the values 2 or 3.
- both ⁇ and f-sodium disilicate Na2Si2 ⁇ 5 * yH2 ⁇ are preferred.
- Usable organic builders are, for example, the polycarboxylic acids preferably used in the form of their sodium salts, such as citric acid, adipic acid, succinic acid, glutaric acid, tartaric acid, sugar acids, aminocarboxylic acids, nitrilotriacetic acid (NTA), provided that such use is not objectionable for ecological reasons. and mixtures of these.
- Preferred salts are the salts of polycarboxylic acids such as citric acid, adipic acid, succinic acid, glutaric acid, tartaric acid, sugar acids and mixtures of these.
- Suitable polymeric polycarboxylates are, for example, the sodium salts of polyacrylic acid or polymethacrylic acid, for example those with a relative molecular weight of 800 to 150,000 (based on acid).
- Suitable copolymeric polycarboxylates are, in particular, those of acrylic acid with methacrylic acid and of acrylic acid or methacrylic acid with maleic acid. Copolymers of acrylic acid with maleic acid which contain 50 to 90% by weight of acrylic acid and 50 to 10% by weight of maleic acid have proven to be particularly suitable.
- Their relative molecular weight, based on free acids is generally 5,000 to 200,000, preferably 10,000 to 120,000 and in particular 50,000 to 100,000.
- Biodegradable terpolymers are also particularly preferred, for example those which, as monomers, contain salts of acrylic acid and maleic acid and vinyl alcohol or Contain vinyl alcohol derivatives (P 43 00 772.4) or the salts of acrylic acid and 2-alkylallylsulfonic acid as monomers and sugar derivatives (DE 4221 381).
- Suitable builder systems are oxidation products of carboxyl group-containing polyglucosans and / or their water-soluble salts, as described, for example, in international patent application WO-A-93/08251. be written or the production of which is described, for example, in international patent application WO-A-93/16110.
- polyaspartic acids or their salts and derivatives are also to be mentioned as further preferred builder substances.
- polyacetals which can be obtained by reacting dialdehydes with polyolcarboxylic acids which have 5 to 7 carbon atoms and at least 3 hydroxyl groups, for example as described in European patent application EP-A-0 280 223 .
- Preferred polyacetals are obtained from dialdehydes such as glyoxal, glutaraldehyde, terephthalaldehyde and mixtures thereof and from polyol carboxylic acids such as gluconic acid and / or glucoheptonic acid.
- the inorganic and / or organic builder substances are preferably used in the tablets in amounts of about 10 to 60% by weight, in particular 15 to 50% by weight.
- Solid acids such as e.g. Amidosulfonic acid or phosphonic acids are used.
- nonionic surfactants such as e.g. Fatty alcohol ethoxylates.
- bleaching agents based on oxygen or chlorine, disinfectant agents such.
- quaternary ammonium compounds, foam inhibitors, enzymes, fillers etc. may be included.
- the duration of the irradiation process is usually between 15 seconds and 90 minutes, preferably between 1 minute and 30 minutes, in particular between 1 minute and 5 minutes.
- Another possibility according to the invention is to treat the tablets with hot air only after the irradiation process.
- the duration of the hot air treatment can in principle be as long as the tablet survives the hot air treatment without damage; for economic reasons it is up to 30 minutes, preferably up to 10 minutes, in particular up to 3 minutes.
- a method is particularly preferred in which the treatment with hot air takes place both during the irradiation process and after the irradiation.
- the duration of the hot air treatment is usually in the period already mentioned above.
- the hot air is generally generated by a conventional hot air blower with adjustable air temperature.
- Microwave radiation can e.g. in a microwave oven as described in PCT / EP94 / 01330; the products irradiated in this way can then be subjected to hot air treatment. It is also possible to carry out microwave irradiation and hot air treatment in the furnace at the same time. The microwave radiation and / or hot air treatment can therefore - as described - in a device, e.g. an oven, carried out in batches.
- the microwave irradiation (with simultaneous or subsequent or both simultaneous and subsequent hot air treatment) is preferably carried out in a continuous manner.
- a system is particularly suitable for this purpose in which the premixes to be irradiated are transported on a conveyor belt through a zone irradiated with microwaves.
- hot air is either blown directly into the irradiated zone or into a zone which immediately adjoins the irradiated zone or both into the irradiated zone and into the adjoining zone. Examples
- the manually pre-compressed premixes were generally more soluble after irradiation and hot air treatment according to the invention.
- the moldings were placed on a conveyor belt and transported through a zone irradiated with microwaves, with no hot air treatment being carried out.
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)
- Detergent Compositions (AREA)
Abstract
Description
Claims
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NZ295667A NZ295667A (en) | 1994-11-07 | 1995-10-30 | A process for preparing detergent tablets comprising subjecting the tablets to microwave radiation and hot-air treatment |
DK95937027T DK0791048T3 (da) | 1994-11-07 | 1995-10-30 | Fremgangsmåde til fremstilling af vaske- og rengøringsmiddeltabletter ved hjælp af mikrobølger og varmluftbehandling |
EP95937027A EP0791048B1 (de) | 1994-11-07 | 1995-10-30 | Verfahren zur herstellung von wasch- und reinigungsmitteltabletten durch mikrowellen- und heissluftbehandlung |
US08/836,623 US5914309A (en) | 1994-11-07 | 1995-10-30 | Process for the production of detergent tablets by microwave and hot air treatment |
DE59506121T DE59506121D1 (de) | 1994-11-07 | 1995-10-30 | Verfahren zur herstellung von wasch- und reinigungsmitteltabletten durch mikrowellen- und heissluftbehandlung |
CA002204783A CA2204783C (en) | 1994-11-07 | 1995-10-30 | A process for the production of detergent tablets by microwave and hot air treatment |
NO971303A NO971303L (no) | 1994-11-07 | 1997-03-20 | Fremgangsmåte for fremstilling av vaske- og rengjöringsmiddel-tabletter ved hjelp av mikrobölge- og varmluftbehandling |
FI971932A FI971932A (fi) | 1994-11-07 | 1997-05-06 | Menetelmä pesu- ja puhdistusainetablettien valmistamiseksi mikroaalto- ja kuumailmakäsittelyllä |
GR990401570T GR3030495T3 (en) | 1994-11-07 | 1999-06-10 | Process for producing washing and cleaning agent tablets by means of microwave and hot-air treatment |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4439679A DE4439679A1 (de) | 1994-11-07 | 1994-11-07 | Verfahren zur Herstellung von Wasch- und Reinigungsmitteltabletten durch Mikrowellen- und Heißluftbehandlung |
DEP4439679.1 | 1994-11-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996014391A1 true WO1996014391A1 (de) | 1996-05-17 |
Family
ID=6532650
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1995/004242 WO1996014391A1 (de) | 1994-11-07 | 1995-10-30 | Verfahren zur herstellung von wasch- und reinigungsmitteltabletten durch mikrowellen- und heissluftbehandlung |
Country Status (11)
Country | Link |
---|---|
US (1) | US5914309A (de) |
EP (1) | EP0791048B1 (de) |
AT (1) | ATE180827T1 (de) |
DE (2) | DE4439679A1 (de) |
DK (1) | DK0791048T3 (de) |
ES (1) | ES2135101T3 (de) |
FI (1) | FI971932A (de) |
GR (1) | GR3030495T3 (de) |
NO (1) | NO971303L (de) |
NZ (1) | NZ295667A (de) |
WO (1) | WO1996014391A1 (de) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
HUP0101059A3 (en) * | 1998-02-10 | 2002-12-28 | Unilever Nv | Detergent tablet and process for its manufacture |
GB9807992D0 (en) | 1998-04-15 | 1998-06-17 | Unilever Plc | Water softening and detergent compositions |
GB9822090D0 (en) * | 1998-10-09 | 1998-12-02 | Unilever Plc | Detergent Compositions |
DE19948668A1 (de) * | 1999-10-08 | 2001-04-19 | Cognis Deutschland Gmbh | Waschmitteltabletten |
DE10010760A1 (de) * | 2000-03-04 | 2001-09-20 | Henkel Kgaa | Mehrphasige Wasch- und Reinigungsmittelformkörper mit nicht-gepreßten Anteilen |
DE10125441A1 (de) * | 2001-05-25 | 2002-12-05 | Henkel Kgaa | Verfahren und benötigte Zusätze zur Erhöhung der Stabilität von Tabletten |
DE10254314B4 (de) * | 2002-11-21 | 2004-10-14 | Henkel Kgaa | Verfahren zur Herstellung befüllter Wasch- und Reinigungsmittelformkörper II |
US8124676B2 (en) * | 2003-03-14 | 2012-02-28 | Eastman Chemical Company | Basecoat coating compositions comprising low molecular weight cellulose mixed esters |
US7585905B2 (en) | 2003-03-14 | 2009-09-08 | Eastman Chemical Company | Low molecular weight cellulose mixed esters and their use as low viscosity binders and modifiers in coating compositions |
US8461234B2 (en) * | 2003-03-14 | 2013-06-11 | Eastman Chemical Company | Refinish coating compositions comprising low molecular weight cellulose mixed esters |
US8039531B2 (en) * | 2003-03-14 | 2011-10-18 | Eastman Chemical Company | Low molecular weight cellulose mixed esters and their use as low viscosity binders and modifiers in coating compositions |
US20080085953A1 (en) * | 2006-06-05 | 2008-04-10 | Deepanjan Bhattacharya | Coating compositions comprising low molecular weight cellulose mixed esters and their use to improve anti-sag, leveling, and 20 degree gloss |
US20070282038A1 (en) * | 2006-06-05 | 2007-12-06 | Deepanjan Bhattacharya | Methods for improving the anti-sag, leveling, and gloss of coating compositions comprising low molecular weight cellulose mixed esters |
SMP201200046B1 (it) * | 2012-10-24 | 2015-07-09 | Caffemotive Srl | Un metodo per la produzione di una compressa di unprodotto macinato in polvere per l'estrazione di bevande nonchè compressa ottenibile con tale metodo |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2327956A1 (de) * | 1973-06-01 | 1974-12-19 | Henkel & Cie Gmbh | Verfahren zur herstellung von wasserloesliche hydratisierte salze enthaltenden granulaten, insbesondere wasch- und reinigungsmittelgranulaten |
US4584281A (en) * | 1981-09-18 | 1986-04-22 | The Clorox Company | Controlled delivery of immiscible materials into an aqueous system |
BE1004876A5 (fr) * | 1991-05-27 | 1993-02-16 | Serstevens Albert T | Perfectionnement pour l'obtention de poudres a lessiver par micro-ondes. |
WO1994025563A1 (en) * | 1993-05-05 | 1994-11-10 | Henkel-Ecolab Gmbh & Co. Ohg | Process for consolidating particulate solids and cleaning products therefrom |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL278464A (de) * | 1961-05-15 | |||
JPS52587B2 (de) * | 1972-04-11 | 1977-01-08 | ||
US4405850A (en) * | 1978-10-06 | 1983-09-20 | Raytheon Company | Combination microwave heating apparatus |
DE3413571A1 (de) * | 1984-04-11 | 1985-10-24 | Hoechst Ag, 6230 Frankfurt | Verwendung von kristallinen schichtfoermigen natriumsilikaten zur wasserenthaertung und verfahren zur wasserenthaertung |
US4885108A (en) * | 1986-08-12 | 1989-12-05 | Colgate-Palmolive Company | Method of shaping of soap bar |
DE3706036A1 (de) * | 1987-02-25 | 1988-09-08 | Basf Ag | Polyacetale, verfahren zu deren herstellung aus dialdehyden und polyolcarbonsaeuren und verwendung der polyacetale |
DE4010533A1 (de) * | 1990-04-02 | 1991-10-10 | Henkel Kgaa | Tablettierte wasch- und/oder reinigungsmittel fuer haushalt und gewerbe und verfahren zu ihrer herstellung |
US5108646A (en) * | 1990-10-26 | 1992-04-28 | The Procter & Gamble Company | Process for agglomerating aluminosilicate or layered silicate detergent builders |
DE4134914A1 (de) * | 1991-10-23 | 1993-04-29 | Henkel Kgaa | Wasch- und reinigungsmittel mit ausgewaehlten builder-systemen |
DE4221381C1 (de) * | 1992-07-02 | 1994-02-10 | Stockhausen Chem Fab Gmbh | Pfropf-Copolymerisate von ungesättigten Monomeren und Zuckern, Verfahren zu ihrer Herstellung und ihre Verwendung |
DE4203923A1 (de) * | 1992-02-11 | 1993-08-12 | Henkel Kgaa | Verfahren zur herstellung von polycarboxylaten auf polysaccharid-basis |
DE4300772C2 (de) * | 1993-01-14 | 1997-03-27 | Stockhausen Chem Fab Gmbh | Wasserlösliche, biologisch abbaubare Copolymere auf Basis von ungesättigten Mono- und Dicarbonsäuren, Verfahren zu ihrer Herstellung und ihre Verwendung |
DE4429550A1 (de) * | 1994-08-19 | 1996-02-22 | Henkel Kgaa | Verfahren zur Herstellung von Wasch- oder Reinigungsmitteltabletten |
DE19601840A1 (de) * | 1996-01-19 | 1997-07-24 | Henkel Kgaa | Verfahren zur Herstellung von Wasch- oder Reinigungsmittelformkörpern |
-
1994
- 1994-11-07 DE DE4439679A patent/DE4439679A1/de not_active Withdrawn
-
1995
- 1995-10-30 ES ES95937027T patent/ES2135101T3/es not_active Expired - Lifetime
- 1995-10-30 WO PCT/EP1995/004242 patent/WO1996014391A1/de active IP Right Grant
- 1995-10-30 DE DE59506121T patent/DE59506121D1/de not_active Expired - Fee Related
- 1995-10-30 AT AT95937027T patent/ATE180827T1/de not_active IP Right Cessation
- 1995-10-30 DK DK95937027T patent/DK0791048T3/da active
- 1995-10-30 NZ NZ295667A patent/NZ295667A/xx unknown
- 1995-10-30 EP EP95937027A patent/EP0791048B1/de not_active Expired - Lifetime
- 1995-10-30 US US08/836,623 patent/US5914309A/en not_active Expired - Lifetime
-
1997
- 1997-03-20 NO NO971303A patent/NO971303L/no not_active Application Discontinuation
- 1997-05-06 FI FI971932A patent/FI971932A/fi unknown
-
1999
- 1999-06-10 GR GR990401570T patent/GR3030495T3/el unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2327956A1 (de) * | 1973-06-01 | 1974-12-19 | Henkel & Cie Gmbh | Verfahren zur herstellung von wasserloesliche hydratisierte salze enthaltenden granulaten, insbesondere wasch- und reinigungsmittelgranulaten |
US4584281A (en) * | 1981-09-18 | 1986-04-22 | The Clorox Company | Controlled delivery of immiscible materials into an aqueous system |
BE1004876A5 (fr) * | 1991-05-27 | 1993-02-16 | Serstevens Albert T | Perfectionnement pour l'obtention de poudres a lessiver par micro-ondes. |
WO1994025563A1 (en) * | 1993-05-05 | 1994-11-10 | Henkel-Ecolab Gmbh & Co. Ohg | Process for consolidating particulate solids and cleaning products therefrom |
Also Published As
Publication number | Publication date |
---|---|
GR3030495T3 (en) | 1999-10-29 |
NO971303D0 (no) | 1997-03-20 |
ES2135101T3 (es) | 1999-10-16 |
EP0791048A1 (de) | 1997-08-27 |
ATE180827T1 (de) | 1999-06-15 |
FI971932A0 (fi) | 1997-05-06 |
EP0791048B1 (de) | 1999-06-02 |
NZ295667A (en) | 1998-10-28 |
DE4439679A1 (de) | 1996-05-09 |
FI971932A (fi) | 1997-05-06 |
NO971303L (no) | 1997-03-20 |
DK0791048T3 (da) | 1999-12-13 |
US5914309A (en) | 1999-06-22 |
DE59506121D1 (de) | 1999-07-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0777721B1 (de) | Verfahren zur herstellung von wasch- oder reinigungsmitteltabletten | |
DE69404543T2 (de) | Stabilisiertes Natriumpercarbonatteilchen | |
WO1996014391A1 (de) | Verfahren zur herstellung von wasch- und reinigungsmitteltabletten durch mikrowellen- und heissluftbehandlung | |
DE2462648C2 (de) | ||
DE2753573C2 (de) | ||
DE2805128C2 (de) | ||
DE60132282T2 (de) | Verfahren zur Herstellung eines anionischen Tensidpulvers | |
DE2646953C2 (de) | Verfahren zur Entfernung von polaren Lösungsmitteln aus einer Waschmittelmischung sowie dadurch enthaltenes Waschmittel | |
DE69826491T2 (de) | Verfahren zur herstellung eines waschmittels mit niedriger schüttdichte durch kontrolle der agglomerierung über die teilchengrösse | |
DE69717816T2 (de) | Verfahren zur herstellung eines waschmittels mit niedrigem schüttgewicht durch agglomeration und anschliessender dielektrischer erwärmung | |
DE1567656C3 (de) | Verfahren zur Hersteilung eines in der Wärme getrockneten Reinigungsmittels | |
EP0877791B1 (de) | Verfahren zur herstellung von wasch- oder reinigungsmittelformkörpern | |
DE4023561C2 (de) | ||
DE3852754T2 (de) | Verfahren zur Herstellung eines Reinigungsproduktes in Granulatform. | |
DE10031619A1 (de) | Tensidgranulate mit verbesserter Auflösegeschwindigkeit | |
DE1926220A1 (de) | Enzymhaltiges Wasch- oder Reinigungsmittel | |
EP0075250A2 (de) | Verfahren zur Herstellung eines granulierten Rohmaterials für Reinigungsmittel | |
DE2014674A1 (en) | Alkali silicates directly from siliceousmaterial and alkali | |
EP0788539B1 (de) | Verfahren zur herstellung von wasch- und reinigungsmitteln | |
DE2431338B2 (de) | Verfahren zur Herstellung einer frei fließenden, thermisch stabilen Natriumdichlorisocyanurathydrate enthaltenden Mischung | |
DE19841361A1 (de) | Verfahren zur Herstellung von Wasch- oder Reinigungsmittelformkörpern | |
DD140140A1 (de) | Verfahren zur herstellung eines stabilen natriumkarbonat-perhydrats | |
DE69510074T2 (de) | Körnige hochaktive waschmittelzusammensetzungen und verfahren zu ihrer herstellung | |
AT213373B (de) | Verfahren zur Herstellung von Granulaten kondensierter Phosphatperhydrate | |
CA2204783C (en) | A process for the production of detergent tablets by microwave and hot air treatment |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): CA FI NO NZ US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 1995937027 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 971932 Country of ref document: FI |
|
ENP | Entry into the national phase |
Ref document number: 2204783 Country of ref document: CA Ref country code: CA Ref document number: 2204783 Kind code of ref document: A Format of ref document f/p: F |
|
WWE | Wipo information: entry into national phase |
Ref document number: 08836623 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 295667 Country of ref document: NZ |
|
WWP | Wipo information: published in national office |
Ref document number: 1995937027 Country of ref document: EP |
|
WWG | Wipo information: grant in national office |
Ref document number: 1995937027 Country of ref document: EP |