WO1996011255A1 - Composition solide, granulaire, comprenant un ingredient liquide emprisonne dans une matrice solide, procede de preparation et utilisation dans une composition detergente en poudre - Google Patents
Composition solide, granulaire, comprenant un ingredient liquide emprisonne dans une matrice solide, procede de preparation et utilisation dans une composition detergente en poudre Download PDFInfo
- Publication number
- WO1996011255A1 WO1996011255A1 PCT/FR1995/001310 FR9501310W WO9611255A1 WO 1996011255 A1 WO1996011255 A1 WO 1996011255A1 FR 9501310 W FR9501310 W FR 9501310W WO 9611255 A1 WO9611255 A1 WO 9611255A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- alkali metal
- liquid
- composition
- mineral
- solid
- Prior art date
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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
- C11D17/0039—Coated compositions or coated components in the compositions, (micro)capsules
-
- 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
- C11D10/045—Compositions of detergents, not provided for by one single preceding group based on mixtures of surface-active non-soap compounds and soap based on non-ionic surface-active 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
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/37—Polymers
- C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C11D3/373—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicones
Definitions
- Solid, granular camp comprising a liquid ingredient trapped in a solid matrix, method of preparation and use in a powdered detergent composition.
- the present invention relates to a solid, granular, free-flowing composition which contains a liquid ingredient such as a liquid surfactant or a silicone fluid.
- liquid ingredients are often difficult in a large number of formulation trades such as the formulation of compositions for agrochemicals, maintenance, detergency or even metallurgy, where it is frequently sought to propose the powder form compositions.
- incorporation of a liquid into a powder composition can be done by mass mixing of the ingredients, but the powder and liquid mixtures are difficult to achieve homogeneously and their use is made inconvenient due to weak rheological properties.
- Another conventional approach consists in carrying out a suspension of the solid ingredients in an appropriate liquid, then in introducing the liquid ingredient (s) and finally in drying the suspension, most often by spray drying, to finally obtain a powder.
- This technique is commonly used for the preparation of laundry washing compositions. Indeed, to ensure high efficiency of cold washing, at low concentration, on synthetic textiles, the washing compositions preferably incorporate liquid surfactants of non-ionic type with remarkable detergency properties. The use of such products in powder compositions is delicate and is all the more so since the surfactants are used in large proportions.
- liquid nonionic surfactants of the ethoxyl alcohol type in particular products having an alkyl chain comprising between 10 and 16 carbon atoms and a chain ethoxylee comprising between 2 and 10 ethylene oxide units.
- a disadvantage of these liquid products is their sensitivity to temperature, which limits their use in processes where aqueous suspensions are prepared intended for drying / shaping by atomization. In fact, at atomization temperatures, they are partially burned (in fact called "pluming") with a loss of active materials and pollution of the air rejected by the drying tool.
- One method conventionally envisaged is that of adsorption or absorption of the liquid on a solid support having a large accessible surface or an appropriate porosity.
- the most efficient products in terms of supporting power are mineral products with a large specific surface such as silicas or amorphous precipitated silico-aluminates, crystalline synthetic silico-aluminates, clays, talcs or kaolins.
- Organic polymers can also be used such as microcrystalline cellulose, modified celluloses, various hydrocolloids, starches.
- liquid ingredients of non-aqueous liquid surfactant type or silicone fluids do not lend themselves to this shaping insofar as they do not have the ability to agglomerate the powders.
- This absence of tackiness is a consequence of their absence of solid phase.
- Obtaining granules from mixtures of the aforementioned liquids and solids is very delicate since modulation of the resulting particle size by an agglomeration effect is not possible.
- Crystalline sodium silico-aluminates such as zeolite can also allow the absorption of 30 to 40% of nonionic surfactants.
- zeolites like silica, are insoluble in water under normal conditions of use of detergent compositions and can therefore be the source of problems such as clogging of evacuation pipes or deposition on the linen, especially in the case of washing in washing machines using only reduced amounts of water.
- organic supports in particular polymers, in addition to the high price, can also have drawbacks vis-à-vis the stability of the compound or the negative effects due to the polymer on the washing function.
- the absorbency for the surfactant in question is generally quite low, and the polymers in question are not necessarily useful in the formulations. They can even be harmful.
- These supports can be chosen from the usual alkaline mineral salts used in the formulations (carbonate, sulfate, borate, perborate, sodium phosphates, etc.).
- Another type of process is to react the liquid ingredient with an appropriate compound to form a reaction product which assumes a solid form.
- the finished products may also contain products such as excess starting reactants which have no functions recognized in the final composition.
- the formulator is constantly looking for new means allowing the incorporation of liquid ingredients in powder compositions to widen the range of performances of this type of product.
- the present invention therefore aims to provide a new type of solid, granular composition, flowing freely, which contains a liquid ingredient such as a surfactant or a silicone fluid, simple to prepare and use, without meeting the problems appearing with the compositions formed in solid form according to the current methods mentioned above.
- the present invention relates to a solid, granular composition, flowing freely and soluble in water, comprising a liquid ingredient chosen from non-aqueous liquid surfactants and silicone fluids, trapped in an organic solid matrix , mineral or organomineral, formed in situ from at least one precursor, organic or mineral, in the form of liquid miscible with said ingredient liquid to be trapped or in the form of a suspensible solid in said liquid ingredient to be trapped.
- the liquid ingredient is trapped in the solid matrix formed in situ in the presence of said ingredient from suitable precursors.
- the chemical structure of the liquid ingredient is not modified during the preparation of the composition, said ingredient. not being involved in any chemical reaction.
- the interactions between the liquid ingredient and the solid matrix are not of surface type as in the compositions resulting from an adsorption or an absorption insofar as the solid matrix is formed in the presence of the ingredient liquid around the latter so as to trap it.
- the liquid ingredient of the composition of the invention is chosen from non-aqueous liquid surfactants and silicone fluids.
- the nonaqueous liquid surfactant is of the nonionic type.
- they may be surfactants of ethoxyl alcohol type, where the carbon chain of the alcohol is an alkyl or alkylaryl chain, which are liquid at room temperature.
- the carbon chain comprises from 10 to 22 carbon atoms, more particularly from 10 to 16 carbon atoms
- the ethxoylee chain comprises from 2 to 10 ethylene oxide units.
- Silicone fluids of all types can be used in a composition of the invention. These products are also of interest in the detergency field because of their anti-foaming properties.
- a silicone oil can be used.
- the solid matrix can be any organic structured material, mineral or organommeral, capable of forming in the presence of a liquid ingredient of the aforementioned type, in a manner compatible with the latter and under sufficiently mild conditions so as not to degrade the liquid ingredient.
- structured material is meant a relatively ordered material, which is in solid form.
- it may be a material consisting of an organic, mineral or organomineral, crystalline or polymer network.
- both the liquid ingredient and the solid matrix are soluble in water.
- the solid matrix represents a useful mass in the solid composition, that is to say that the constituent (s) of said matrix are endowed with desired properties in a detergent composition.
- the solid matrix can be present in the composition, in particular as a surfactant or detergency builder.
- the matrix may be of the organomineral type and comprise a fatty acid soap formed in situ from a fatty acid as a matrix precursor.
- the fatty acid is an acid containing from 10 to 22 carbon atoms.
- the fatty acid hydrocarbon chain can be saturated or unsaturated.
- these acids mention may be made of capric, lauric, myristic, palmitic, stearic, arachidic or behenic acids.
- the fatty acid soap matrix is formed in situ in the composition containing the liquid ingredient, by neutralization of at least one fatty acid with an at least stoichiometric amount of alkaline agent.
- the final solid composition according to the The invention includes a liquid ingredient trapped in a solid matrix which includes a soap of fatty acid (s) and the free residual alkaline agent.
- the matrix comprises a soap of fatty acid (s) and of the free alkaline agent, because they have an alkalinity useful in detergency.
- the solid matrix of the composition of the present invention can be complex and comprise several matrices formed simultaneously in situ in the composition of the invention, from several corresponding suitable precursors, under appropriate conditions.
- a compound such as an alkali metal silicate which can be used as an alkaline agent, alone or in admixture with other alkaline agents, to neutralize one or more fatty acids by forming a organomineral matrix of fatty acid (s) soap, is also a mineral matrix precursor insofar as it is capable of forming a polysilicate gel by polycondensation.
- An advantageous solid composition according to the invention can therefore comprise a liquid ingredient, chosen from non-aqueous liquid surfactants and silicone fluids, trapped in a matrix organomineral formed in situ comprising a soap of fatty acid (s) and a polysilicate gel.
- the solid matrix may also contain, in addition to the fatty acid soap and polysilicate gel, alkali metal silicate in excess, having reacted neither with the fatty acid (s) nor with the condensing agents, and bringing a certain alkaline power to the solid composition.
- the water-soluble granular solid composition according to the invention comprising a liquid ingredient trapped in a solid matrix formed in situ from suitable precursors, flows freely.
- the granular solid composition according to the invention can contain its various components in ranges of very large proportions, respecting the need for the constituents of the solid matrix to be present in a sufficient quantity so that the latter can trap all the ingredient within it. liquid.
- the liquid ingredient in an amount of 10 to 60% by weight, the solid matrix representing the complement.
- the equivalent amount of free acid present in the matrix represents from 5 to 50% of the weight of the solid composition.
- the solid matrix comprises a fatty acid soap
- this amount represents a 10 to 20% excess over the stoichiometric amount. necessary to neutralize the fatty acid (s) causing the soap.
- the subject of the present invention is also a composition
- a composition comprising
- composition as described above, containing a liquid ingredient trapped in a solid matrix formed in situ from at least one precursor, organic or inorganic, in the form of liquid miscible with said liquid ingredient to be trapped or of solid suspensible in said ingredient, mixed with
- anhydrous or hydrated anhydrous or hydrated; anhydrous or hydrated, crystalline or amorphous phosphates and polyphosphates of alkali or alkaline-earth metal, especially sodium or potassium, in particular; and alkali or alkaline earth metal sulfates and bisulfates, especially sodium or potassium; and water-insoluble mineral compounds such as precipitated, amorphous or combustion silicas; alkali metal, especially sodium, crystalline or amorphous silico-aluminates; magnesium or calcium silicates; clays; talcs; and the kaolins.
- Ingredient (b) can be introduced as a combination of various mineral compounds.
- mention may be made of cogranules based on alkali metal carbonate, in particular sodium or potassium, and on alkali metal silicate nSiO 2 -M 2 O, where the alkali metal M is in particular sodium or potassium , and the SiO 2 / M 2 O n molar ratio is 1.5 to 3.5 in which the weight content of water relative the weight of dry silicate is 33/100.
- Such cogranules are known for their detergency builder properties, and are the subject of European patent applications EP-A-0488 868 and EP-A-0 561 656 filed by the Applicant.
- the weight ratio of silicate to carbonate in these cogranules is from 5/95 to 45/55, very advantageously from 15/85 to 35/65.
- a preferred composition comprises a nonionic surfactant trapped in an organomineral matrix obtained by saponification of a fatty acid with an alkali metal silicate, in mixture with an alkali carbonate and / or silicate / carbonate cogranules as defined above.
- composition (a) Preferably, an amount of soluble mineral compound corresponding to 5 to 70% of the weight of the final mixture and / or an amount of insoluble mineral compound corresponding to 0.1 to 3% of the weight of the final mixture is mixed with composition (a). .
- the final composition remains more than 97% soluble in water.
- the high solubility in water of the solid composition of the present invention makes its use in detergent compositions very advantageous.
- This composition makes it possible to introduce a large quantity of liquid ingredient such as a surfactant, with detergent properties, or a silicone fluid, with anti-foaming properties, into a powder formula, by simple dry mixing with the other components of the formula.
- the solid matrix which serves as a vehicle for the liquid ingredient is formed from a soap of fatty acid (s), it also contributes to the detergent properties of the powder composition.
- the soluble mineral products that may be present advantageously exhibit detergency builder properties.
- the insoluble mineral products possibly present, in particular the silico-aluminates, contribute to the effectiveness of a composition. detergent.
- composition according to the invention allows iiclure a liquid ingredient in a powdered detergent formulation, in postaddition by dry mixing, without introducing unnecessary or inert material into the formula, which is particularly advantageous.
- Another subject of the present invention therefore is the use of a granular solid composition as described above in a powdered detergent composition.
- the present invention also relates to a process for the preparation of a solid, granular, free-flowing, water-soluble composition, comprising a liquid ingredient, chosen from non-aqueous liquid surfactants and silicone fluids, trapped in a solid matrix formed in situ from at least one organic precursor or mineral, in the form of a liquid miscible with said liquid ingredient to be trapped, or of a suspensible solid in said liquid ingredient to be trapped.
- This process includes the following steps:
- a process for the preparation of a solid, granular, free-flowing, water-soluble composition comprising a liquid ingredient, chosen from non-aqueous liquid surfactants and silicone fluids, trapped in a solid matrix formed in situ with a fatty acid soap can include the following steps: (i) a mixture is produced a. liquid state of at least one C 10 -C 22 fatty acid and of a liquid compound selected from non-aqueous liquid surfactants and silicone fluids, at a temperature at least equal to the melting point of the fatty acid in said liquid compound, preferably close to the melting point of the acid alone,
- this mineral alkaline agent is added in excess relative to the stoichiometric quantity necessary for the neutralization of the fatty acid (s). Preferably, this excess is 10 to 20%.
- step (iii) in which the water necessary for saponification is added.
- step (iii) it may happen that the water introduced is present in sufficient quantity and step (iii) may then not be necessary for the saponification of the fatty acids to take place and for the mixture takes on a probe consistency If this is not the case, the preparation process actually includes a step (iii) where the additional water necessary for saponification is added.
- step I (ii) or (iii) the mixture takes on a waxy consistency.
- the alkaline agent used is an alkali metal silicate, especially sodium silicate, in particular sodium metasilicate
- its contact with water has the effect of triggering a process of hydrolysis and polycondensation of the silicate.
- stages (ii) and (iii) therefore two phenomena occur: the neutralization of the fatty acid (s) and the polycondensation in silicate gel.
- the amount of silicate introduced into the mixture determines the structure of the solid matrix, which will be more or less loaded with polysilicate gel.
- the silicate can be introduced in the form of an aqueous solution, at a temperature which can range from room temperature to 80 ° C., depending on the desired viscosity of the silicate solution.
- the starting fatty acid has a relatively high melting point
- the solid, product of step (ii), optionally (iii) or (iv), is capable of being divided into particulate form in step (v) to result in a granular solid composition according to the invention.
- the granular composition can be shaped, in particular by extrusion or by granulation (for example, using a granulation or extrusion screw, a mixer little shear ..).
- the soluble mineral compounds are added in an amount of 5 to 70% of the weight of the final mixture.
- the insoluble mineral compounds are preferably added in an amount of 0.1 to 3% of the weight of the final mixture.
- the incorporation of the mineral ingredient (b) by mixing with the composition (a) can be carried out during the formation of the solid matrix of (a), while the mixture tends to a close state solid, without having solidified.
- the process can therefore include, in this variant, a step (vi) in which the mixture resulting from step (ii), if appropriate from step (iii), is added to the mixture during solidification without having solidified , a mineral ingredient (b) as described above.
- composition (a) a composition (a) and an ingredient (b) according to this variant can be carried out batchwise or continuously as is briefly described below.
- a discontinuous process can be implemented in devices of the mixing tank type.
- the fatty acid can be melted in the liquid ingredient in a liquid mixer at a temperature at least equal to the melting point of the fatty acid in said liquid ingredient, preferably close to the melting point of fatty acid alone.
- the liquid mixer can for example be provided with propeller-type stirring means.
- the liquid mixture is introduced into a mixer with low shear, provided for example with stirring means of the plowshares type, double helical screw ...
- the mixer is provided with a double envelope to maintain the walls internal of the device at a temperature which can range from ambient temperature to a higher temperature or preferably close to the melting point of the fatty acid, in particular from ambient temperature to 80 ° C.
- the powdered alkaline agent is introduced, for example alkali carbonate, then water, or an aqueous solution of alkaline agent, for example an alkali metal silicate solution, at a temperature ranging from the temperature ambient at 80 ° C. depending on the desired viscosity of the silicate solution.
- the ore ingredient (b) is added as a powder to the mass (a) being solidified in this mixer before the mixture (a) has been able to solidify.
- the stirring conditions nature of the stirring system, speed of rotation, temperature
- the stirring conditions are chosen and adjusted in a known manner according to the ingredients used to ensure a homogeneous mixture.
- the mixer can act as a granulator if the mixture spontaneously divides into particulate form, or the mixture is discharged to a mixing device. shaping, in particular by extrusion or granulation.
- the particles or granules finally obtained are removed, and possibly sieved.
- Another ore compound can be added to the granules before or after evacuation and / or possible sieving, in order to improve the rheological properties of the granules.
- a continuous process can be implemented in a horizontal tubular reactor ensuring the functions of transporter and mixer, having one or more supply (s) of reagents and mineral ingredient, an outlet for the granulated composition and intermediate organs ensuring transport, mixing, granulation, and possibly heating functions.
- a device of the aforementioned type successively comprises:
- each introduction and transport zone being provided with an orifice in the sheath for the introduction of liquid and / or powder, the shafts being equipped with transport elements, and
- the single figure shows a schematic sectional view of a device usable for implementing a method according to the invention.
- the device shown in the single figure comprises a sheath 1 in which are arranged two shafts 2 and 3 driven in rotation by a motor 4.
- the sheath is equipped over part of its length with double heating jackets 5.
- the device comprises five successive zones which are detailed below.
- the first zone is a material introduction zone. It is located at the end of the device on the side of the drive motor 4. It is closed at this end and open to the other. All the other zones are open on both coasts to communicate with each other.
- Liquid ingredient and fatty acid in solid or molten state are introduced into the introduction and transport zone A via an orifice 6 for the introduction of liquid and household powder into the sheath 1.
- the reagents are conveyed to the next zone by means of transport elements 7 and 8 of the type Archimedes' screw.
- the next zone is a zone B of premix of reagents to obtain a liquid mixture.
- the reagents introduced are mixed by means of shearing mixer elements 9 and 10.
- these elements are asymmetrical with respect to the axes of the shafts 2 and 3, respectively.
- heating means 5 here a double heating jacket can be provided to melt the fatty acid, while maintaining the internal wall of the sheath at a temperature which can go from room temperature to a temperature higher or preferably close to the melting point of the fatty acid, in particular from room temperature to 80 ° C.
- the liquid mixture reaches the zone C for introduction of the alkaline agent and for transport, where the alkaline agent is introduced via an orifice 11 formed in the sheath.
- this zone is also equipped with heating means 5 which maintain the internal wall of the sheath at a temperature which can range from ambient temperature to a temperature higher or preferably close to the melting point of the fatty acid, in particular of the room temperature at 80 ° C.
- the wall temperature is not necessarily identical to that in the premix zone B.
- This zone is to convey the liquid mass to a reaction zone by means of conveyor elements 12 and 13 of the Archimedes screw type.
- the liquid mass then enters the matrix formation reaction zone D.
- the shafts are fitted with shearing mixer elements 14 and 15.
- these elements According to the rneoiogie of the mixture, which depends on the reagents used, these elements have a particular shape preferably asymmetrical compared to the axes of the trees 2 and 3 respectively. The shape of the elements will be chosen in a manner known per se to achieve a satisfactory mixture.
- the temperature of the reaction medium is fixed by the temperature of the wall in the reaction zone D which can be adjusted by means of heating means 5.
- this temperature which is not necessarily identical to the temperature of the wall in the preceding zone, will be fixed in a manner known per se depending on the reagents used so that the formation of the matrix takes place leading to a mass with a waxy appearance without allowing the reaction medium to solidify.
- the wall temperature can be chosen in particular between ambient temperature and 80 ° C.
- the reaction mixture which has not solidified reaches the zone E of introduction of the mineral ingredient (b) and of transport.
- the mineral ingredient (b) is introduced through an introduction orifice 16 formed in the sheath and the waxy mass is agitated by simple conveyor elements 17 and 18 of the Archimedes screw type. These elements also have the function of transporting the mass to the next zone where it will be granulated.
- Zone E can also be provided with heating means 5 to maintain the internal wall of the device at a temperature, in particular from room temperature to 80 ° C.
- the ultimate mixing of the components takes place in the transport and granulation zone F by means of simple transport elements 19 and 20 of the Archimedes screw type.
- the mass in agitation in this zone spontaneously divides therein in particulate form during the mixing of the ore ingredient with the waxy mass where the liquid ingredient has been trapped. It is possible, in the das where i wish to obtain a composition in granular form or the particles have a specific shape, to choose the operating parameters so that the mass in agitation in the granulation zone F does not divide there spontaneously and providing said zone with means for shaping the composition, in particular with extrusion or granulation means.
- the granulation zone can optionally also be provided with heating means.
- shafts 2 and 3 are driven by a motor imposing a single speed of rotation in all the zones of the device. This speed of rotation will be set according to the reagents and ingredients used to ensure satisfactory mixing and transport in each of the zones concerned.
- the methods for preparing a composition of the invention described above have the great advantage over known methods of adsorption or absorption of operating without solvents and therefore of not comprising a drying step which could be harmful to the liquid ingredient.
- the preparation can thus be carried out very easily continuously or discontinuously with limited risks.
- Example 1 The present invention is illustrated by the following examples.
- Example 1 The present invention is illustrated by the following examples.
- Rhodasurf LA90 sold by the company Rhône-Poulenc, 17 g of steanic acid are added. The mixture is heated to about 80 ° C, so as to melt the fatty acid, which is solid at room temperature, in situ. The two organic products are perfectly miscible and give a homogeneous monophasic mixture.
- the stiffening of the liquid is obtained jointly by the m situ manufacturing of a sodium soap network and the creation of a polysilicate gel derived from sodium metasilicate, of which only a fraction of the alkalinity is used to neutralize fatty acid.
- the finished product is a free flowing particulate solid that contains 50% liquid nonionic surfactant. It is 97% water soluble.
- Example 3 Batch preparation of a composition containing a nonionic surfactant trapped in a matrix of stearigue soap and polysilicate, mixed with a mineral ingredient based on sodium carbonate and silicate.
- Sodium carbonate is thus added thereto, due to sodium carbonate and sodium silicate cogranules manufactured and sold by the company Rhône-Poulenc under the brand Nabion 15, of the following composition:
- RHODASURF surfactant 1.2 kg (20%) are poured into a 5 liter beaker, located on a hot plate.
- the surfactant reaches the temperature of 60 ° C.
- 0.3 kg (5%) of stearic acid is introduced, in the form of a powder.
- the mixture is homogenized by an electric paddle stirrer. After 30 minutes of stirring (time required to melt the stearic acid in the surfactant at a temperature of 60 ° C.), the liquid mixture is poured into a horizontal cylindrical mixer of L ⁇ DIGE brand of 20 I team of low coulters shear. The speed of rotation of the blades is fixed, for the entire test, at 150 rpm.
- the mixer tank has a double jacket in which oil heated in a thermostate bath at 75oC circulates. The temperature of the inner wall of the tank is 60 ° C
- This powder can be used as a surfactant system and detergency builder soluble in 98.5% in water.
- nonionic surfactant RHODASURF is trapped in a matrix of stean soap and polysilicate.
- Sodium carbonate and cogranules of sodium carbonate and silicate manufactured and sold by the company Rhône-Poulenc under the brand Nabion 15 of the following composition are added thereto. - Na 2 CO 3 56%
- the preparation is carried out in a LEISTRITZ brand twin screw corotative device having an internal diameter of the sheath of 33 mm and a screw length of 1.2 m.
- This device of the type shown diagrammatically in the single figure, is equipped with heating means which maintain the internal wall temperature of the premix B, introduction of alkaline agent C, reaction D and introduction zones at 60 ° C. of mineral ingredient E.
- the design of the screws varies along the reactor: conveyor screws in each introductin and transport zone A, C, E, as well as in the final transport and granulation zone F; kneading screws in the premix B and reaction D zones.
- the screw rotation speed is fixed at 125 revolutions per minute.
- the liquid mixture reaches the reaction zone D where it becomes a waxy mass.
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- 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 (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU36572/95A AU3657295A (en) | 1994-10-07 | 1995-10-06 | Solid granular composition comprising a liquid ingredient captured in a solid matrix, preparation method and utilisation in a powdery detergent composition |
EP95934185A EP0784670A1 (fr) | 1994-10-07 | 1995-10-06 | Composition solide, granulaire, comprenant un ingredient liquide emprisonne dans une matrice solide, procede de preparation et utilisation dans une composition detergente en poudre |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9412018A FR2725456B1 (fr) | 1994-10-07 | 1994-10-07 | Composition solide, granulaire, comprenant un ingredient liquide emprisonne dans une matrice solide, procede de preparation et utilisation dans une composition detergente en poudre |
FR94/12018 | 1994-10-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996011255A1 true WO1996011255A1 (fr) | 1996-04-18 |
Family
ID=9467676
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1995/001310 WO1996011255A1 (fr) | 1994-10-07 | 1995-10-06 | Composition solide, granulaire, comprenant un ingredient liquide emprisonne dans une matrice solide, procede de preparation et utilisation dans une composition detergente en poudre |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0784670A1 (fr) |
AU (1) | AU3657295A (fr) |
FR (1) | FR2725456B1 (fr) |
WO (1) | WO1996011255A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006016586A1 (de) | 2006-04-06 | 2007-10-11 | Henkel Kgaa | Feste, Textil-weichmachende Zusammensetzung auf Seifenbasis |
US11441106B2 (en) | 2017-06-27 | 2022-09-13 | Henkel Ag & Co. Kgaa | Particulate fragrance enhancers |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0075433A2 (fr) * | 1981-09-16 | 1983-03-30 | Unilever Plc | Compositions empêchant la mousse |
EP0191396A1 (fr) * | 1985-02-11 | 1986-08-20 | Henkel Kommanditgesellschaft auf Aktien | Procédé de production de granulés s'écoulant librement |
FR2584088A1 (fr) * | 1985-06-27 | 1987-01-02 | Lion Corp | Composition de savon solide |
EP0382464A2 (fr) * | 1989-02-09 | 1990-08-16 | Unilever Plc | Procédé d'enrobage |
EP0593014A1 (fr) * | 1992-10-12 | 1994-04-20 | Kao Corporation | Composition détergente non-ionigue pulvérulente |
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1994
- 1994-10-07 FR FR9412018A patent/FR2725456B1/fr not_active Expired - Fee Related
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1995
- 1995-10-06 WO PCT/FR1995/001310 patent/WO1996011255A1/fr not_active Application Discontinuation
- 1995-10-06 AU AU36572/95A patent/AU3657295A/en not_active Abandoned
- 1995-10-06 EP EP95934185A patent/EP0784670A1/fr not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0075433A2 (fr) * | 1981-09-16 | 1983-03-30 | Unilever Plc | Compositions empêchant la mousse |
EP0191396A1 (fr) * | 1985-02-11 | 1986-08-20 | Henkel Kommanditgesellschaft auf Aktien | Procédé de production de granulés s'écoulant librement |
FR2584088A1 (fr) * | 1985-06-27 | 1987-01-02 | Lion Corp | Composition de savon solide |
EP0382464A2 (fr) * | 1989-02-09 | 1990-08-16 | Unilever Plc | Procédé d'enrobage |
EP0593014A1 (fr) * | 1992-10-12 | 1994-04-20 | Kao Corporation | Composition détergente non-ionigue pulvérulente |
Also Published As
Publication number | Publication date |
---|---|
AU3657295A (en) | 1996-05-02 |
EP0784670A1 (fr) | 1997-07-23 |
FR2725456A1 (fr) | 1996-04-12 |
FR2725456B1 (fr) | 1996-12-27 |
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