EP0362665A1 - Process for preparing a particulate detergent composition - Google Patents
Process for preparing a particulate detergent composition Download PDFInfo
- Publication number
- EP0362665A1 EP0362665A1 EP89117703A EP89117703A EP0362665A1 EP 0362665 A1 EP0362665 A1 EP 0362665A1 EP 89117703 A EP89117703 A EP 89117703A EP 89117703 A EP89117703 A EP 89117703A EP 0362665 A1 EP0362665 A1 EP 0362665A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- detergents
- spray
- clay
- blown
- detergent
- 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
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- 239000003599 detergent Substances 0.000 title claims abstract description 33
- 239000000203 mixture Substances 0.000 title claims description 6
- 238000004519 manufacturing process Methods 0.000 title description 3
- 239000002002 slurry Substances 0.000 claims abstract description 21
- 239000000654 additive Substances 0.000 claims abstract description 6
- 239000007789 gas Substances 0.000 claims abstract description 6
- 239000007921 spray Substances 0.000 claims abstract description 5
- 238000001694 spray drying Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 15
- 239000004927 clay Substances 0.000 claims description 8
- 239000004615 ingredient Substances 0.000 claims description 6
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 229910021647 smectite Inorganic materials 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 2
- 150000004760 silicates Chemical class 0.000 abstract description 6
- 238000001035 drying Methods 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000004753 textile Substances 0.000 description 5
- 238000000889 atomisation Methods 0.000 description 4
- 229910021536 Zeolite Inorganic materials 0.000 description 3
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 3
- 239000010457 zeolite Substances 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 150000004996 alkyl benzenes Chemical class 0.000 description 1
- 229920003086 cellulose ether Polymers 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 1
- JYIMWRSJCRRYNK-UHFFFAOYSA-N dialuminum;disodium;oxygen(2-);silicon(4+);hydrate Chemical compound O.[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Na+].[Na+].[Al+3].[Al+3].[Si+4] JYIMWRSJCRRYNK-UHFFFAOYSA-N 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910000271 hectorite Inorganic materials 0.000 description 1
- KWLMIXQRALPRBC-UHFFFAOYSA-L hectorite Chemical compound [Li+].[OH-].[OH-].[Na+].[Mg+2].O1[Si]2([O-])O[Si]1([O-])O[Si]([O-])(O1)O[Si]1([O-])O2 KWLMIXQRALPRBC-UHFFFAOYSA-L 0.000 description 1
- 229910052901 montmorillonite Inorganic materials 0.000 description 1
- UEZVMMHDMIWARA-UHFFFAOYSA-M phosphonate Chemical compound [O-]P(=O)=O UEZVMMHDMIWARA-UHFFFAOYSA-M 0.000 description 1
- 229910052615 phyllosilicate Inorganic materials 0.000 description 1
- 229920005646 polycarboxylate Polymers 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 150000003856 quaternary ammonium compounds Chemical class 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- -1 sorbitan ester Chemical class 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000008961 swelling Effects 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
- C11D3/02—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
-
- 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
Definitions
- detergents which have the property of giving washed textiles a soft feel have long been known.
- detergents of this type additionally contain textile-softening active ingredients.
- These can be organic textile plasticizers, for example of the quaternary ammonium compound or sorbitan ester type, or also inorganic textile plasticizers, for example swellable layered silicates of the smectite type.
- Detergents with clay-containing textile softeners are known for example from DE-A-23 34 899.
- particulate detergents are usually produced by spray drying in atomizing towers. At least some of the detergent ingredients or all of the detergent ingredients are sprayed in the form of an aqueous slurry at the top of an atomization tower and dried with hot gases, which are conducted either in cocurrent or countercurrent to the sprayed detergent slurry.
- Water-softening, fabric softening sheet silicates can be incorporated into such a detergent ingredient slurry.
- the viscosity of the aqueous slurry generally increases to a level that can no longer be pumped and sprayed. To the To reduce viscosity again, it would be necessary to increase the water content of the slurry. However, this would mean that one would have to remove this additional water during the subsequent drying process, which would entail high energy costs.
- the present invention therefore relates to a process for the preparation of particulate, clay-containing detergents or detergent additives by spray drying an aqueous slurry of detergent ingredients, which is characterized in that air-swellable, textile-softening clays in particulate form are blown into the spray cone and this mixture is dried by heated gases .
- Suitable clay-like minerals with textile softening properties are naturally occurring, commercially available minerals of the smectite type, for example montmorillonite or hectorite. They are offered for use in detergents in different particle sizes, for example as fine powders or as granules. They are usually not pure white, which is often annoying when incorporated into white, particulate detergents. Finely divided, swellable layered silicates of the smectite type are particularly suitable for processing by the method according to the invention. For the purposes of the present invention, “fine particles” are clays with a particle size that is 90% below 50 microns.
- the process according to the invention can either be carried out by allowing the heated gases used to dry the sprayed aqueous slurry to flow in the same direction (cocurrent) or in the opposite direction to the sprayed aqueous slurry (countercurrent).
- a preferred embodiment of the method according to the invention is that one works in countercurrent. Powders are obtained which have particularly valuable properties with regard to their pouring properties and a possibly low proportion of dust-fine products if the flow rates of the sprayed slurry and the blown-in clay are set such that the flow rates do not differ from one another by more than 30%, whereby it It is expedient that they differ by no more than 10% and in particular are the same.
- the particulate detergents produced by the process according to the invention have a lighter color than detergents of the same composition which have been prepared by reducing the textile-softening clays of the aqueous slurry clogged.
- the full preservation of the softening properties Because the swellable clays need not be added to the aqueous slurry by the process of the invention, they also do not cause viscosity problems in the aqueous slurry and therefore do not require additional amounts of water in the aqueous slurry to remove them.
- the process according to the invention can also be used with excellent success for the production of a free-flowing, granular spray product which essentially contains zeolite A and textile-softening swellable clays.
- the product obtained in this way can be used well as an additive to detergents.
- the atomization product weighed 395 g per liter and contained 7.1 weight percent water.
- the product was easy to pour and had a lighter color than a comparative product of the same composition which had been prepared by adding the layered silicate to the aqueous slurry before atomization.
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)
Abstract
Description
Teilchenförmige Waschmittel, die die Eigenschaft haben, gewaschenen Texitilien eine weichen Griff zu verleihen, sind seit langem bekannt. Derartige Waschmittel enthalten außer den üblicherweise in Waschmitteln enthaltenen Waschmittelinhaltsstoffen zusätzlich textilweichmachende Wirkstoffe. Dies können organische Textilweichmacher etwa vom Typ der quartären Ammoniumverbindungen oder der Sorbitan-Ester sein, oder auch anorganische Textilweichmacher, beispielsweise quellfähige Schichtsilikate vom Smectit-Typ. Waschmittel mit tonhaltigen Textilweichmachern sind beispielsweise aus der DE-A-23 34 899 bekannt.Particulate detergents which have the property of giving washed textiles a soft feel have long been known. In addition to the detergent ingredients usually contained in detergents, detergents of this type additionally contain textile-softening active ingredients. These can be organic textile plasticizers, for example of the quaternary ammonium compound or sorbitan ester type, or also inorganic textile plasticizers, for example swellable layered silicates of the smectite type. Detergents with clay-containing textile softeners are known for example from DE-A-23 34 899.
In großtechnischem Maßstab werden teilchenförmige Waschmittel in der Regel durch Sprühtrocknung in Zerstäubungstürmen hergestellt. Dabei wird wenigstens ein Teil der Waschmittelinhaltsstoffe oder auch sämtliche Waschmittelinhaltsstoffe in Form einer wäßrigen Aufschlämmung am oberen Ende eines Zerstäubungsturms versprüht und mit heißen Gasen, die man entweder im Gleichstrom oder im Gegenstrom zu der versprühten Waschmittelaufschlämmung führt, getrocknet. In Wasser quellende, textilweichmachende Schichtsilikate lassen sich in eine derartige Waschmittelinhaltsstoffe-Aufschlämmung einarbeiten. Durch ihre Eigenschaft, in Wasser aufzuquellen, erhöht sich aber die Viskosität der wäßrigen Aufschlämmung in der Regel auf ein nicht mehr pump- und versprühbares Maß. Um die Viskosität wieder zu senken, wäre es erforderlich, den Wasseranteil der Aufschlämmung zu erhöhen. Dies würde aber bedeuten, daß man dieses zusätzlich zugesetzte Wasser beim anschließenden Trocknungsprozess wieder entfernen müßte, was mit hohen Energiekosten verbunden wäre.On an industrial scale, particulate detergents are usually produced by spray drying in atomizing towers. At least some of the detergent ingredients or all of the detergent ingredients are sprayed in the form of an aqueous slurry at the top of an atomization tower and dried with hot gases, which are conducted either in cocurrent or countercurrent to the sprayed detergent slurry. Water-softening, fabric softening sheet silicates can be incorporated into such a detergent ingredient slurry. However, due to their property of swelling in water, the viscosity of the aqueous slurry generally increases to a level that can no longer be pumped and sprayed. To the To reduce viscosity again, it would be necessary to increase the water content of the slurry. However, this would mean that one would have to remove this additional water during the subsequent drying process, which would entail high energy costs.
Aufgabe der vorliegenden Erfindung ist es daher, ein Verfahren zur Herstellung teilchenförmiger, tonhaltiger Waschmittel durch Sprühtrocknung hoch konzentrierter, wäßriger Aufschlämmungen bereitzustellen, die zur Einstellung einer zur Verarbeitung noch ausreichenden niedrigen Viskosität keinen erhöhten Wasserbedarf erfordert. Gegenstand der vorliegenden Erfindung ist daher ein Verfahren zur Herstellung teilchenförmiger, tonhaltiger Waschmittel oder Waschmittelzusatzstoffe durch Sprühtrocknung einer wäßrigen Aufschlämmung von Waschmittelinhaltsstoffen, das dadurch gekennzeichnet ist, daß man in den Sprühkegel mittels Luft quellfähige, textilweichmachende Tone in Teilchenform einbläst und dieses Gemisch durch erhitzte Gase trocknet. Geeignete tonartige Mineralien mit textilweichmachenden Eigenschaften sind natürlich vorkommende, im Handel erhältliche Mineralien vom Smectit-Typ, beispielsweise Montmorillonite oder Hectorite. Sie werden für die Verwendung in Waschmitteln in unterschiedlichen Teilchengrößen, beispielsweise als feinteilige Pulver oder als Granulate angeboten. Sie sind meistens nicht reinweiß, was bei der Einarbeitung in weiße, teilchenförmige Waschmittel häufig störend ist. Zur Verarbeitung nach dem erfindungsgemäßen Verfahren eignen sich feinteilige, quellfähige Schichtsilikate vom Smectit-Typ besonders. "Feinteilig" im Sinne der vorliegenden Erfindung sind Tone mit einer Teilchengröße, die zu 90 % unter 50 mikron liegt.It is therefore an object of the present invention to provide a process for the production of particulate, clay-containing detergents by spray drying highly concentrated, aqueous slurries which does not require an increased water requirement to set a low viscosity which is still sufficient for processing. The present invention therefore relates to a process for the preparation of particulate, clay-containing detergents or detergent additives by spray drying an aqueous slurry of detergent ingredients, which is characterized in that air-swellable, textile-softening clays in particulate form are blown into the spray cone and this mixture is dried by heated gases . Suitable clay-like minerals with textile softening properties are naturally occurring, commercially available minerals of the smectite type, for example montmorillonite or hectorite. They are offered for use in detergents in different particle sizes, for example as fine powders or as granules. They are usually not pure white, which is often annoying when incorporated into white, particulate detergents. Finely divided, swellable layered silicates of the smectite type are particularly suitable for processing by the method according to the invention. For the purposes of the present invention, “fine particles” are clays with a particle size that is 90% below 50 microns.
Man kann das erfindungsgemäße Verfahren entweder so ausführen, daß man die zum Trocknen der versprühten wäßrigen Aufschlämmung benutzten erhitzten Gase in gleicher Richtung (Gleichstrom) oder entgegengesetzt zur versprühten wäßrigen Aufschlämmung (Gegenstrom) strömen läßt.The process according to the invention can either be carried out by allowing the heated gases used to dry the sprayed aqueous slurry to flow in the same direction (cocurrent) or in the opposite direction to the sprayed aqueous slurry (countercurrent).
Eine bevorzugte Ausführungsform des erfindungsgemäßen Verfahrens besteht darin, daß man im Gegenstrom arbeitet. Man erhält Pulver, die hinsichtlich ihrer Rieseleigenschaften und eines möglich geringen Anteils an staubfeinen Produkten besonders wertvolle Eigenschaften haben, wenn man die Strömungsgeschwindigkeiten der versprühten Aufschlämmung und des eingeblasenen Tons so einstellt, daß sich die Strömungsgeschwindigkeiten um nicht mehr als 30 % voneinander unterscheiden, wobei es zweckmäßig ist, daß sie sich nicht mehr als um 10 % unterscheiden und insbesondere gleich sind.A preferred embodiment of the method according to the invention is that one works in countercurrent. Powders are obtained which have particularly valuable properties with regard to their pouring properties and a possibly low proportion of dust-fine products if the flow rates of the sprayed slurry and the blown-in clay are set such that the flow rates do not differ from one another by more than 30%, whereby it It is expedient that they differ by no more than 10% and in particular are the same.
Außer den bereits genannten gewünschten Eigenschaften einer möglichst gleichmäßigen Kornverteilung und einer möglichst guten Rieselfähigkeit auch nach längerer Lagerung weisen die nach dem erfindungsgemäßen Verfahren hergestellten teilchenförmigen Waschmittel eine hellere Farbe auf als gleich zusammengesetzte Waschmittel, die man hergestellt hat, indem man die textilweichmachenden Tone der wäßrigen Aufschlämmung zusetzte. Besonders hervorzuheben ist der volle Erhalt der weichmachenden Eigenschaften. Dadurch, daß die quellfähigen Tone nach dem erfindungsgemäßen Verfahren nicht der wäßrigen Aufschlämmung zugesetzt zu werden brauchen, verursachen sie außerdem keine Viskositätsprobleme in der wäßrigen Aufschlämmung und benötigen daher auch nicht zu deren Beseitigung zusätzliche Wassermengen in der wäßrigen Aufschlämmung.In addition to the above-mentioned desired properties of the most uniform possible grain distribution and the best possible free-flowing properties even after prolonged storage, the particulate detergents produced by the process according to the invention have a lighter color than detergents of the same composition which have been prepared by reducing the textile-softening clays of the aqueous slurry clogged. Of particular note is the full preservation of the softening properties. Because the swellable clays need not be added to the aqueous slurry by the process of the invention, they also do not cause viscosity problems in the aqueous slurry and therefore do not require additional amounts of water in the aqueous slurry to remove them.
Das erfindungsgemäße Verfahren läßt sich mit vorzüglichem Erfolg auch zur Herstellung eines rieselfähigen körnigen, im wesentlichen Zeolith A und textilweichmachende quellfähige Tone enthaltenden Sprühproduktes verwenden. Das so erhaltene Produkt läßt sich gut als Zusatz zu Waschmitteln verwenden. In manchen Fällen ist es zweckmäßig, einen Teil der quellfähigen Tone der Waschmittelschlämmung beziehungsweise der zu versprühenden Zeolithsuspension zuzusetzen und den restlichen Teil nach dem erfindungsgemäßen Verfahren einzublasen. Dies kann zur Verbesserung der Redispergierbarkeit der erhaltenen Waschmittel beziehungsweise der Zeolith/Ton-Sprühprodukte führen.The process according to the invention can also be used with excellent success for the production of a free-flowing, granular spray product which essentially contains zeolite A and textile-softening swellable clays. The product obtained in this way can be used well as an additive to detergents. In some cases, it is expedient to add a part of the swellable clays to the detergent slurry or the zeolite suspension to be sprayed and to blow in the remaining part by the process according to the invention. This can improve the redispersibility of the detergents obtained or the zeolite / clay spray products.
Eine Waschmittelaufschlämmung, die 65 Gewichtsprozent eines Gemisches aus
10,9 Gew.-% Alkylbenzol-Na
4,7 Gew.-% Fettalkohol-Ethoxylat
1,5 Gew.-% Seife
5,0 Gew.-% Soda
3,5 Gew.-% Wasserglas
27,2 Gew.-% Zeolith-A
5,4 Gew.-% Polycarboxylat
10,1 Gew.-% Na-Sulfat
0,9 Gew.-% Celluloseether
0,3 Gew.-% Phosphonat
enthielt und eine Viskosität von 9 400 mPas aufwies, wurde in einem Zerstäubungstrocknungsturm bei einem Verhältnis von Zuluft zur Dralluft von 5,7 versprüht, wobei man soviel eines handelsüblichen quellfähigen Schichtsilikats mit textilweichmachenden Eigenschaften ("Launderosil DGA, windgesichtet" (R)), das eine Teilchengrößenverteilung hatte, bei der 99 % kleiner als 45 mikron waren, einblies, daß das getrocknete Zerstäubungsprodukt 16,3 Gewichtsprozent Schichtsilikat enthielt. Das Zerstäubungsprodukt hatte ein Gewicht von 395 g pro Liter und enthielt 7,1 Gewichtsprozent Wasser. Das Produkt war gut rieselfähig und hatte eine hellere Farbe als ein gleich zusammengesetztes Vergleichsprodukt, das hergestellt worden war, indem man das Schichtsilikat der wäßrigen Aufschlämmung vor der Zerstäubung zugesetzt hatte.A detergent slurry made up of 65 weight percent of a mixture
10.9% by weight of alkylbenzene Na
4.7% by weight fatty alcohol ethoxylate
1.5 wt% soap
5.0 wt% soda
3.5% by weight water glass
27.2% by weight Zeolite-A
5.4% by weight polycarboxylate
10.1% by weight Na sulfate
0.9% by weight cellulose ether
0.3% by weight phosphonate
contained and had a viscosity of 9,400 mPas, was sprayed in an atomization drying tower at a ratio of supply air to swirl air of 5.7, with so much of a commercially available swellable layered silicate with textile-softening properties ("Launderosil DGA, wind-sighted" (R)), that had a particle size distribution in which 99% was less than 45 microns, the dried atomized product contained 16.3% by weight of layered silicate. The atomization product weighed 395 g per liter and contained 7.1 weight percent water. The product was easy to pour and had a lighter color than a comparative product of the same composition which had been prepared by adding the layered silicate to the aqueous slurry before atomization.
Claims (6)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19883833648 DE3833648A1 (en) | 1988-10-04 | 1988-10-04 | METHOD FOR PRODUCING PARTICLE-DETERGENT DETERGENTS |
| DE3833648 | 1988-10-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0362665A1 true EP0362665A1 (en) | 1990-04-11 |
Family
ID=6364310
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19890911033 Pending EP0438437A1 (en) | 1988-10-04 | 1989-09-25 | Process for producing particulate detergents |
| EP89117703A Ceased EP0362665A1 (en) | 1988-10-04 | 1989-09-25 | Process for preparing a particulate detergent composition |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19890911033 Pending EP0438437A1 (en) | 1988-10-04 | 1989-09-25 | Process for producing particulate detergents |
Country Status (4)
| Country | Link |
|---|---|
| EP (2) | EP0438437A1 (en) |
| JP (1) | JPH04500980A (en) |
| DE (1) | DE3833648A1 (en) |
| WO (1) | WO1990004015A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991009927A1 (en) * | 1989-12-27 | 1991-07-11 | Henkel Kommanditgesellschaft Auf Aktien | Granular, brightening detergent additive and process for manufacturing it |
| WO1992007927A1 (en) * | 1990-10-29 | 1992-05-14 | The Procter & Gamble Company | Fabric treatment composition |
| EP0934395A1 (en) * | 1996-10-25 | 1999-08-11 | The Procter & Gamble Company | Detergent compositions |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4306665A1 (en) * | 1993-03-03 | 1994-09-08 | Sued Chemie Ag | Detergent additive for fabric softening detergents |
| EP0879876A1 (en) * | 1997-05-21 | 1998-11-25 | The Procter & Gamble Company | Process for preparation of granular detergent composition or component comprising a water-soluble cationic surfactant |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR842831A (en) * | 1937-10-03 | 1939-06-20 | Henkel & Cie Gmbh | Washing, cleaning, bleaching and rinsing products containing percompounds |
| US3842888A (en) * | 1969-12-15 | 1974-10-22 | Colgate Palmolive Co | Apparatus for introducing ingredients into a spray drying tower |
| GB1400898A (en) * | 1972-07-14 | 1975-07-16 | Procter & Gamble | Detergent compositions |
| GB2190921A (en) * | 1986-05-27 | 1987-12-02 | Unilever Plc | Granular detergent composition |
-
1988
- 1988-10-04 DE DE19883833648 patent/DE3833648A1/en not_active Withdrawn
-
1989
- 1989-09-25 WO PCT/EP1989/001114 patent/WO1990004015A1/en not_active Application Discontinuation
- 1989-09-25 JP JP51029589A patent/JPH04500980A/en active Pending
- 1989-09-25 EP EP19890911033 patent/EP0438437A1/en active Pending
- 1989-09-25 EP EP89117703A patent/EP0362665A1/en not_active Ceased
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR842831A (en) * | 1937-10-03 | 1939-06-20 | Henkel & Cie Gmbh | Washing, cleaning, bleaching and rinsing products containing percompounds |
| US3842888A (en) * | 1969-12-15 | 1974-10-22 | Colgate Palmolive Co | Apparatus for introducing ingredients into a spray drying tower |
| GB1400898A (en) * | 1972-07-14 | 1975-07-16 | Procter & Gamble | Detergent compositions |
| GB2190921A (en) * | 1986-05-27 | 1987-12-02 | Unilever Plc | Granular detergent composition |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991009927A1 (en) * | 1989-12-27 | 1991-07-11 | Henkel Kommanditgesellschaft Auf Aktien | Granular, brightening detergent additive and process for manufacturing it |
| WO1992007927A1 (en) * | 1990-10-29 | 1992-05-14 | The Procter & Gamble Company | Fabric treatment composition |
| EP0934395A1 (en) * | 1996-10-25 | 1999-08-11 | The Procter & Gamble Company | Detergent compositions |
| EP0934395A4 (en) * | 1996-10-25 | 2000-02-23 | Procter & Gamble | Detergent compositions |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04500980A (en) | 1992-02-20 |
| EP0438437A1 (en) | 1991-07-31 |
| DE3833648A1 (en) | 1990-04-05 |
| WO1990004015A1 (en) | 1990-04-19 |
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