FR2462474A2 - Soap based spray dried washing powder for automatics - with better cold dissolving and higher density - Google Patents
Soap based spray dried washing powder for automatics - with better cold dissolving and higher density Download PDFInfo
- Publication number
- FR2462474A2 FR2462474A2 FR7920260A FR7920260A FR2462474A2 FR 2462474 A2 FR2462474 A2 FR 2462474A2 FR 7920260 A FR7920260 A FR 7920260A FR 7920260 A FR7920260 A FR 7920260A FR 2462474 A2 FR2462474 A2 FR 2462474A2
- Authority
- FR
- France
- Prior art keywords
- weight
- parts
- soap
- powder
- anionic surfactant
- 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.)
- Granted
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- 239000000843 powder Substances 0.000 title claims abstract description 27
- 239000000344 soap Substances 0.000 title claims abstract description 19
- 238000005406 washing Methods 0.000 title claims abstract description 10
- 239000007921 spray Substances 0.000 title description 3
- 239000000203 mixture Substances 0.000 claims abstract description 22
- 239000004094 surface-active agent Substances 0.000 claims abstract description 10
- 235000014113 dietary fatty acids Nutrition 0.000 claims abstract description 9
- 239000000194 fatty acid Substances 0.000 claims abstract description 9
- 229930195729 fatty acid Natural products 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000003945 anionic surfactant Substances 0.000 claims abstract description 8
- 150000004665 fatty acids Chemical class 0.000 claims abstract description 8
- 239000000725 suspension Substances 0.000 claims abstract description 7
- 239000004115 Sodium Silicate Substances 0.000 claims abstract description 6
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052911 sodium silicate Inorganic materials 0.000 claims abstract description 6
- 238000001694 spray drying Methods 0.000 claims abstract description 4
- 239000002736 nonionic surfactant Substances 0.000 claims abstract 2
- 239000003599 detergent Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 9
- 238000000889 atomisation Methods 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 239000002002 slurry Substances 0.000 claims description 5
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 2
- 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 claims 2
- 229910052708 sodium Inorganic materials 0.000 claims 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims 1
- 239000002253 acid Substances 0.000 claims 1
- 229940053200 antiepileptics fatty acid derivative Drugs 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 150000004702 methyl esters Chemical class 0.000 claims 1
- -1 oxyethylene fatty acid Chemical class 0.000 claims 1
- 238000002360 preparation method Methods 0.000 claims 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims 1
- 239000000654 additive Substances 0.000 abstract 2
- 230000000996 additive effect Effects 0.000 abstract 2
- 239000007900 aqueous suspension Substances 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 235000019738 Limestone Nutrition 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
- 235000019387 fatty acid methyl ester Nutrition 0.000 description 2
- 239000006028 limestone Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000003352 sequestering agent Substances 0.000 description 2
- 239000003760 tallow Substances 0.000 description 2
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 235000013162 Cocos nucifera Nutrition 0.000 description 1
- 244000060011 Cocos nucifera Species 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- 239000004165 Methyl ester of fatty acids Substances 0.000 description 1
- 235000019482 Palm oil Nutrition 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 229940105329 carboxymethylcellulose Drugs 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 238000001739 density measurement Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 125000006353 oxyethylene group Chemical group 0.000 description 1
- 239000002540 palm oil Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002304 perfume Substances 0.000 description 1
- 235000021395 porridge Nutrition 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 150000003568 thioethers Chemical class 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
- C11D11/00—Special methods for preparing compositions containing mixtures of detergents
- C11D11/02—Preparation in the form of powder by spray drying
-
- 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
- C11D10/00—Compositions of detergents, not provided for by one single preceding group
- C11D10/04—Compositions of detergents, not provided for by one single preceding group based on mixtures of surface-active non-soap compounds and soap
-
- 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
- C11D1/02—Anionic compounds
- C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
- C11D1/14—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aliphatic hydrocarbons or mono-alcohols
- C11D1/143—Sulfonic acid esters
-
- 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
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
La présente invention concerne des compositions détergentes sous forme de poudre a base de savon utilisable en machine à laver. The present invention relates to detergent compositions in the form of a powder based on soap usable in a washing machine.
Dans une demande de brevet antérieure No FR 78 02682, on a décrit des compositions détergentes pouvant se présenter sous forme de poudre, et destinées principalement au lavage automatique, caractérisées en ce que, pour 100 parties de composition, elles contiennent au moins 60 parties en poids de savon et au plus 10 parties en poids d'un mélange d'agents tensio-actifs comprenant de 10 à 30% en poids d'au moins un agent tensio-actif polyoxyalcoy lenique non ionique etXde de 90 à 70% en poids d'au moins un agent tensio-actif anionique choisi parmi les dérivés d'acides gras a-sulfonés. Les compositions décrites peuvent également comporter un ou plusieurs des ingrédients suivants adjuvants alcalins de détergence, agents de blanchiment, azurants optiques, parfums, agents antiredéposition et enzymes. In a prior patent application No. FR 78 02682, detergent compositions which can be in the form of powder and which are intended mainly for automatic washing have been described, characterized in that, for 100 parts of composition, they contain at least 60 parts in weight of soap and at most 10 parts by weight of a mixture of surfactants comprising from 10 to 30% by weight of at least one nonionic polyoxyalkylene lenic surfactant and Xde from 90 to 70% by weight d '' at least one anionic surfactant chosen from derivatives of α-sulfonated fatty acids. The compositions described may also contain one or more of the following ingredients: alkaline detergency builders, bleaches, optical brighteners, perfumes, anti-deposition agents and enzymes.
Les compositions décrites dans la demande de brevet anterieure 78 02682 ont été obtenues par atomisation de solutions ou suspensions aqueuses comportant les divers ingrédients décrits; ces compositions se présentent sous forme d'une poudre sèche, de faible densité, dont les propriétés de détergence et de volume de mousse ont été jugées conformes à ce que l'on peut attendre des compositions détergentes utilisables notamment dans le lavage automatique. The compositions described in prior patent application 78 02682 were obtained by atomization of aqueous solutions or suspensions comprising the various ingredients described; these compositions are in the form of a dry powder, of low density, the detergency and foam volume properties of which have been judged to be in accordance with what can be expected from detergent compositions which can be used in particular in automatic washing.
La poursuite des études, sur la mise au point des compositions détergentes décrites dans la demande de brevet, a cependant montré qu'il était encore possible d'améliorer les propriétés pratiques desdites compositions en contrôlant les densités des poudres de ces compositions. Continued studies on the development of the detergent compositions described in the patent application, however, showed that it was still possible to improve the practical properties of said compositions by controlling the densities of the powders of these compositions.
Ce que l'on appelie les propriétés pratiques ce sont celles qui sont directement liées à l'utilisation des comoositions notamment dans les machines à laver actuelles ces propriétés pratiques regroupent des notions trèsdiverses telles que oar exemple l'aptitude et la vitesse de dissolution des compositions dans l'eau froide. et la possibilité de disposer de compositions qui, sous un volume comparable. présentent une efficacité de lavage analogue à celle des détergents en poudre habituellement commercialisés. Cette dernière proprieté est spécialement intéressante dans le cas de l'utilisation dans les machines à laver où. l'admission du détergent s'effectue suivant un dosage en volume. What are called practical properties are those which are directly linked to the use of comoositions, in particular in current washing machines. in cold water. and the possibility of having compositions which, in a comparable volume. have a washing efficiency similar to that of powder detergents usually sold. This latter property is particularly advantageous in the case of use in washing machines where. the detergent is admitted according to a volume dosage.
La présente invention concerne donc des compositions détergentes en poudre caractérisées en ce qu'elles ont la composition des poudres décrites dans la demande de brevet antérieure et qu'elles ont une densité comprise entre 0,25 et 0,40. The present invention therefore relates to powdered detergent compositions characterized in that they have the composition of the powders described in the previous patent application and that they have a density of between 0.25 and 0.40.
Le mot densité désigne dans la présente demande la "densité apparente" des poudres; cette densité apparente est déterminée en utilisant les techniques normalisées de mesure de la densité des poudres. The word density denotes in the present application the "apparent density" of the powders; this bulk density is determined using standard powder density measurement techniques.
La présente invention concerne également un procédé pour l'obtention d'une poudre telle que définie ci-dessus et notamment présentant une densité comprise entre 0,25 et 0,40. The present invention also relates to a process for obtaining a powder as defined above and in particular having a density of between 0.25 and 0.40.
Ce procédé est caractérisé en ce que l'on soumet à un séchage par atomisation, réalisé à température moyenne, une suspension aqueuse stable comportant
- entre environ 33 et 451 en poids de savon sec,
- entre environ 4 et 7% en poids d'un mélange d'au moins deux agents tensio-actifs dont l'un, représentant -10 à 30% en poids de l'ensemble des tensio-actifs, est un tensio-actif non ionique -polyoxyalcoylenique et dont l'autre, représentant 90 à 70% en poids de l'ensemble des tensio-actifs est un tensio-actif anionique qui est un dérivé d'acides gras a- sulfoné,
- entre environ 4 et 6% en poids d'un adjuvant alcalin de détergence et de préférence de silicate de sodium, et
- d'environ 40 à 55% d'eau.This process is characterized in that a stable aqueous suspension comprising a spray drying, carried out at medium temperature
- between around 33 and 451 by weight of dry soap,
- between approximately 4 and 7% by weight of a mixture of at least two surfactants, one of which, representing -10 to 30% by weight of all the surfactants, is a non-surfactant ionic -polyoxyalkylenic and the other of which, representing 90 to 70% by weight of all the surfactants, is an anionic surfactant which is a derivative of a-sulfonated fatty acids,
between approximately 4 and 6% by weight of an alkaline detergency builder and preferably of sodium silicate, and
- about 40 to 55% water.
Les suspensions utilisées pourraient également contenir d'autres in grédients tels que des azurants optiques et/ou des agents anti-redéposition et/ou des séquestrants des sels calcaires. The suspensions used could also contain other ingredients such as optical brighteners and / or anti-redeposition agents and / or sequestering agents of limestone salts.
Le procédé de séchage par atomisation est connu et il a même été teste pour réaliser des poudres de savon de densité très faible (de l'ordre de 0,1); dans le processus selon l'invention, ce procédé par atomisation doit être mis en oeuvre en utilisant un air à température moyenne, c'est-à-dire de l'ordre de 300 à 1900C, de façon à éviter toute réaction violente. The spray drying process is known and has even been tested to produce very low density soap powders (of the order of 0.1); in the process according to the invention, this atomization process must be carried out using air at medium temperature, that is to say of the order of 300 to 1900C, so as to avoid any violent reaction.
Le secb ;e est poursuivi de façon'à obtenir des poudres dont la teneur en humidité lut être de- l'ordre de 5 à- 12%. The drying is continued so as to obtain powders the moisture content of which can be from 5 to 12%.
La susp asion utilisée doit présenter une viscosité convenable et c'est pourquoi il convient de choisir sa teneur en savon sec dans des limites relativement étroites; une insuffisance de savon conduirait à des poudres de densité trop faible et un excès de savon conduirait à des suspensions très difficiles à pomper. The suspension used must have a suitable viscosity and that is why it is advisable to choose its dry soap content within relatively narrow limits; a lack of soap would lead to powders of too low density and an excess of soap would lead to suspensions very difficult to pump.
La stabilité des suspensions est importante compte tenu de ce que la poudre doit présenter une granulométrie relativement homogène et que chaque grain devrait avoir sensiblement la même composition. Cette stabilité est con férée par la présence du tensio-actif anionique. The stability of the suspensions is important taking into account that the powder must have a relatively homogeneous particle size and that each grain should have substantially the same composition. This stability is conferred by the presence of the anionic surfactant.
On décrit ci-après, sans aucun caractère limitatif, un exemple de mise en oeuvre d'un procédé de fabrication d'une poudre détergente selon l'invention. An example of implementation of a method for manufacturing a detergent powder according to the invention is described below, without any limiting character.
On part d'une suspension aqueuse de savon de soude à base de suif ayant une teneur en poids de savon anhydre de l'ordre de33 % et contenant environ 630Kg de savon anhydre. On porte cette suspens ion à une température d'environ 800C. The starting point is an aqueous suspension of tallow-based soda soap having an anhydrous soap content by weight of about 33% and containing approximately 630 kg of anhydrous soap. This suspension is brought to a temperature of about 800C.
On mélange à cette suspension aqueuse environ 234Kg d'une solution aqueuse d'esters méthyliques d'acides gras de suif et.d'huile de palme a sulfonés à 100%. Cette solution aqueuse a une teneur en produit sec d'environ 24% et contient donc environ. 56kg d'esters méthyliques d'acides gras a sul fonés qui sont des agents dispersants des savons calcaires. About 234 kg of an aqueous solution of tallow fatty acid methyl esters and 100% sulfonated palm oil are mixed with this aqueous suspension. This aqueous solution has a dry product content of approximately 24% and therefore contains approximately. 56kg of methyl esters of fatty acids with sulphides which are dispersing agents for calcareous soaps.
On ajoute de plus à la suspension aqueuse 20Kg d'une amide d'acide gras de coprah oxyéthyléné (contenant 6 molécules d'oxyéthylène), 76Kg de silicate de soude,(contenant un rapport Si o2 de l'ordre de 2), 8Kg de
Na 20 carboxy méthyl cellulose qui est un agent anti-redéposition; 4Kg d'éthylene diamine tétracétique qui est un agent séquestrant. des sels calcaires, 1,6Kg d'azurant optique'et 40Kg de sulfate de sodium destiné à augmenter la cohésion de la poudre.In addition, 20 kg of an oxyethylenated coconut fatty acid amide (containing 6 oxyethylene molecules), 76 kg of sodium silicate, (containing an Si o2 ratio of the order of 2), 8 kg are added to the aqueous suspension. of
Na 20 carboxy methyl cellulose which is an anti-redeposition agent; 4Kg of ethylene diamine tetracetic which is a sequestering agent. limestone salts, 1.6 kg of optical brightener and 40 kg of sodium sulphate intended to increase the cohesion of the powder.
On ajoute la quantité d'eau necessaire pour obtenir un poids total de 1654 Kg contenant 836 Ka de produits anhydres qui se présente sous l'aspect d'une bouillie que l'on maintient à une température de 800C -environ. Adding the amount of water necessary to obtain a total weight of 1654 Kg containing 836 Ka of anhydrous products which appears as a slurry which is maintained at a temperature of 800C -about.
La proportion en poids de produits secs dans la bouillie est donc de 38% de savon de soude anhydre; de 3,4%-d'esters méthyliques d'acides gras a sulfonés; de 1,2% d'amide d'acide gras oxyéthyléné et de 4,6% de silicate de soude. The proportion by weight of dry products in the slurry is therefore 38% of anhydrous soda soap; 3.4% - methyl esters of sulfonated fatty acids; 1.2% of oxyethylenated fatty acid amide and 4.6% of sodium silicate.
Cette bouillie est ensuite transformée en poudre dans une tour d'atomisation. La bouillie est filtrée et envoyée en haut de la tour d'atomisation à l'aide d'une pompe à haute pression pour être pulvérisée dans un courant d'air chaud. This porridge is then transformed into powder in an atomization tower. The slurry is filtered and sent to the top of the spray tower using a high pressure pump to be sprayed into a stream of hot air.
Les valeurs des différents paramètres pendant l'atomisation dépendent de la production horaire et des caractéristiques physiques de la poudre que l'on désire obtenir. The values of the various parameters during atomization depend on the hourly production and on the physical characteristics of the powder which it is desired to obtain.
A titre d'exemple, à partir de la bouillie dont la composition vient d'être décrite, on obtient une production de 1,6 tonne/heure de poudre détergente atomisée en choisissant les valeurs suivantes
- le volume d'air chaud qui traverse la tour est d'environ 35 000m3/heure etla température de l'air chaud à l'entrée de la tour est comprise entre 300 et 350"C,
- la température dans la tour au niveau des pulvérisateurs est de 75 à 800C,
- la pression de pulvérisation est de 60 à 70 bars,
- le diamètre des gicleurs de pulvérisation est de l'ordre de 2mm et il y a quatre gicleurs dans la tour.For example, from the slurry whose composition has just been described, a production of 1.6 tonnes / hour of atomized detergent powder is obtained by choosing the following values
- the volume of hot air passing through the tower is around 35,000m3 / hour and the temperature of the hot air entering the tower is between 300 and 350 "C,
- the temperature in the tower at the level of the sprayers is from 75 to 800C,
- the spraying pressure is 60 to 70 bars,
- the diameter of the spray nozzles is around 2mm and there are four nozzles in the tower.
On recueille en bas de la tour une poudre détergente ayant une densité comprise entre 0,25 et 0,29 et une teneur en eau comprise entre 5% et 9% du poids total. A detergent powder having a density between 0.25 and 0.29 and a water content of between 5% and 9% of the total weight is collected at the bottom of the tower.
Ce choix des paramètres pendant l'atomisation en fonction du débit déterminent la teneur en eau de la poudre et celle-ci est un facteur important de la densité de la poudre. This choice of parameters during atomization as a function of the flow rate determines the water content of the powder and this is an important factor in the density of the powder.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7920260A FR2462474A2 (en) | 1979-08-03 | 1979-08-03 | Soap based spray dried washing powder for automatics - with better cold dissolving and higher density |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7920260A FR2462474A2 (en) | 1979-08-03 | 1979-08-03 | Soap based spray dried washing powder for automatics - with better cold dissolving and higher density |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2462474A2 true FR2462474A2 (en) | 1981-02-13 |
| FR2462474B1 FR2462474B1 (en) | 1984-04-20 |
Family
ID=9228706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7920260A Granted FR2462474A2 (en) | 1979-08-03 | 1979-08-03 | Soap based spray dried washing powder for automatics - with better cold dissolving and higher density |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2462474A2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5616781A (en) * | 1993-10-12 | 1997-04-01 | Stepan Company | Liquid detergent compositions comprising salts of alpha sulfonated fatty acid esters and anionic surfactants |
| US5965508A (en) * | 1997-10-21 | 1999-10-12 | Stepan Company | Soap bar compositions comprising alpha sulfonated fatty acid alkyl esters and long chain fatty acids |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2379601A1 (en) * | 1977-02-02 | 1978-09-01 | Union Gle Savonnerie | DETERGENT COMPOSITION IN THE FORM OF A SOAP-BASED POWDER FOR USE IN A WASHING MACHINE |
-
1979
- 1979-08-03 FR FR7920260A patent/FR2462474A2/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2379601A1 (en) * | 1977-02-02 | 1978-09-01 | Union Gle Savonnerie | DETERGENT COMPOSITION IN THE FORM OF A SOAP-BASED POWDER FOR USE IN A WASHING MACHINE |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5616781A (en) * | 1993-10-12 | 1997-04-01 | Stepan Company | Liquid detergent compositions comprising salts of alpha sulfonated fatty acid esters and anionic surfactants |
| US5965508A (en) * | 1997-10-21 | 1999-10-12 | Stepan Company | Soap bar compositions comprising alpha sulfonated fatty acid alkyl esters and long chain fatty acids |
| US6172026B1 (en) | 1997-10-21 | 2001-01-09 | Stepan Company | Soap bar compositions comprising alpha sulfonated fatty acid alkyl esters and long chain fatty acids |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2462474B1 (en) | 1984-04-20 |
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