JP2008506005A - Stable non-aqueous bleach detergent composition dispersion - Google Patents

Abstract

The present invention relates to a non-aqueous bleach detergent composition, a) a solid bleach in an amount of 20% to 85% by weight, which is a hypochlorous acid liberator, and b) 0.1 A thickener in an amount of from 10 to 10% by weight, which is a mixture of clay and polymer with a clay: polymer ratio of 1:10 to 10: 1; and c) up to 0.3% by weight A thickener activator in an amount of d) an auxiliary compound in an amount of from 0 to 23% by weight; and e) chemically inert to the bleach and the solubility of the bleach is less than 10 mg / l. A non-aqueous bleach detergent comprising a non-aqueous liquid in an amount of at least 14.9% by weight, comprising a non-aqueous liquid selected from vegetable oils, mineral oils, synthetic oils, or fish oils, and mixtures thereof. It is a composition.

Description

[Background of the invention]
1. The present invention relates to a non-aqueous bleach detergent composition comprising a dispersion, a method of making the composition, and a closed package containing the composition.

2. 2. Description of the Prior Art Commercial detergents for washing machines and dishwashing applications, provided in powder, dispersion or slurry or in liquid form, have the disadvantage that they are not stable at high concentrations.

  A stable non-aqueous bleach detergent composition has been developed, for example, the composition of US Pat. No. 5,164,106, which describes cleaning performance against the challenge of removing soil. An improved dishwasher cleaning composition is disclosed. The disclosure of this patent relates to a stable non-aqueous liquid composition containing a dual bleach system that is used in an automatic dishwasher to wash dishes, glassware, cookware, and the like. This patent describes a non-aqueous bleach detergent composition comprising a dispersion of a liquid carrier, a bleach selected from a hypochlorous acid free compound, a non-aqueous builder salt, sodium silicate, an alkali metal carbonate, and a bromine compound. Disclosure. A typical bleaching composition contains an amount that provides 0.5-10% chlorine, which is 1-18% by weight, preferably 2-12% by weight of hypochlorous acid free compound. Corresponding to use. According to the examples, a bleaching agent concentration of 2.5 to 5.36% by weight was obtained.

  Aqueous bleaching compositions are known in the art, for example in US Pat. No. 4,992,194. This patent describes a method for keeping non-aqueous hydrogen peroxide acid water insoluble by using a low pH. At high pH, hydrogen peroxide acid dissolves and becomes inactive. The disadvantage of this method is that the number of suitable hydrogen peroxide acids is limited. Indeed, one of the few acids that can be used by this prior art method is the phthaloylaminoperoxocaproic acid (PAP) family of compounds. For this reason, this method is certainly not generally applicable.

[Summary of Invention]
It has been found that the composition of US Pat. No. 5,164,106 is not stable at bleach levels greater than 18% by weight. Effective in removing dirt from proteinaceous and starchy carbohydrates in dishwashing and stubborn stains in laundry washing, and cleaning hard surfaces in stationary washing (CIP) applications such as the food and beverage industry This is a serious problem because there is a need for higher concentrations of bleaching compositions that are particularly effective. For economic reasons, it is particularly important to obtain a composition that is stable enough to be stored at high temperatures for long periods of time. The latter is particularly important when using oxygen generating bleaches as it can release oxygen, or chlorine in the case of hypochlorous acid release agents, from decomposition. In general, bleach containing a hydrogen peroxide releaser and a hypochlorous acid release will eventually release oxygen, decomposition of this bleach will reduce activity and oxygen (in the non-porous container). When stored in bottles and other types of containers that open up after the decomposition has begun, resulting in an increase in pressure, this can lead to dangerous conditions.

  Accordingly, there is a need for stable dispersions containing much higher concentrations of bleach than those known in the art.

  The object of the present invention is to obtain a stable dispersion which contains at least 20% by weight, preferably about 40% by weight or more of a bleaching agent, which can be selected from a broad group of bleaching agents, in particular oxygen generating bleaching agents. . It is a further object of the present invention to be able to package and store such compositions for extended periods without decomposition or oxygen formation.

  The problem to be solved is to formulate a high concentration non-aqueous liquid detergent composition that is stable in storage and effective as a bleaching agent in automatic dishwashing, laundry and other bleaching applications. In particular, the composition should easily remove coffee, tea and wine stains. Common soils derived from blood, starch and protein must also be easily removed. The composition must be produced at a concentration sufficiently higher than the compositions known in the prior art while maintaining stability under prolonged storage conditions.

  Another object of the present invention is a non-aqueous liquid detergent concentrate composition that is stable under storage conditions, does not degrade or decompose (even at high temperatures), can be easily injected, and can be easily dispersed in wash water. Is to provide things.

The present invention is a non-aqueous bleach detergent composition comprising:
a) a solid bleach in an amount of 20% to 85% by weight, the solid bleach being a hypochlorous acid release agent;
b) a thickener in an amount of 0.1 to 10% by weight, wherein the thickener is a mixture of clay and polymer with a clay: polymer ratio of 1:10 to 10: 1;
c) a thickener activator in an amount of 0 to 0.3% by weight;
d) an auxiliary compound in an amount of 0 to 23% by weight;
e) a non-aqueous liquid in an amount of at least 14.9% by weight that is chemically inert to the bleaching agent and has a bleaching solubility of less than 10 mg / l, vegetable oil, mineral oil, synthetic oil Or a non-aqueous bleaching detergent composition comprising a dispersion with a non-aqueous liquid selected from animal oils, including fish oils, and mixtures thereof.

Detailed Description of Preferred Embodiments
The composition according to the invention is stable for at least 6 months, usually at least 1 year, in most cases without any time limit, and nevertheless contains a very high concentration of bleach. I understood. It is possible to obtain a stable composition having 25 to 50% by weight, preferably 35 to 45% by weight of bleach. The composition containing the bleaching agent within the most preferable range, that is, 35 to 45% by weight, can be used in a conventional washing machine and dishwasher. At high concentrations, particularly close to 85% by weight, the composition becomes more viscous, but can be used in machines adapted to pump the bleaching composition using high pressure. Concentrations greater than 85% by weight are possible but are not commercially useful due to significant viscosity increases.

  Surprisingly, the composition of the present invention provides a liquid wash for an automatic dishwasher with improved cleaning performance against protein and carbohydrate stains in automatic dishwashing and to coffee, tea and wine stains in textile washing. It can be used for an agent composition. The compositions of the present invention can also be used in the food and beverage industry to clean hard surfaces. More generally, bleach can be used as a decolorizing agent, but also for sterilization purposes in dishwashing and washing. Liquid detergent compositions contain a source of bleach, in particular a source of oxygen generating bleach, and more specifically a source of hypochlorous acid.

  Specifically, the present invention provides improved cleaning performance on soils with proteinaceous and starchy carbohydrates on tableware, glassware and utensils, especially cooked and baked soils. The present invention also relates to a liquid automatic dishwashing detergent concentration composition having improved cleaning ability for coffee, tea and wine stains. Such stains are removed in laundry applications.

  Non-aqueous liquid compositions are stable upon storage, are preferably injectable without precipitation, and disperse easily in water.

  The non-aqueous liquid detergent composition of the present invention has the advantage of being stable on storage, not precipitating and not gelling, and is easily dispersed in a (dishware) washer. Preferred liquid compositions of the present invention are easily poured, easily weighed, easily placed in a (dish) washer, and easily dispersed in wash water in a (dish) washer.

  These and other objects of the invention will be more readily understood from the following detailed description of the invention and the preferred embodiments of the invention.

  According to the invention, preferably non-aqueous for automatic dishwashers comprising at least a bleach selected from oxygen generating compounds, a thickener, a non-aqueous liquid, and optionally a thickener activator and auxiliary compounds. A liquid detergent composition is provided. Throughout the present invention, the term “non-aqueous” means a composition or liquid containing less than 5% by weight of free water. Accordingly, it is preferred that the compositions and liquids of the present invention contain no more than a small amount of free water at best.

  The present invention is a method for washing tableware, glassware and cooking utensils in a domestic or industrial automatic dishwasher using an aqueous wash bath containing an effective amount of a non-aqueous liquid composition as described above. And a method for washing laundry in a washing machine. According to this aspect of the invention, the composition is stable upon storage, can be easily metered, and can be easily poured or dispersed in an automatic (dishware) washer.

1. Bleaching Agents Suitable oxygen generating compounds for use in the bleaching composition are water soluble solid materials that generate oxygen when contacted with water or dissolved in water. Such oxygen release is obtained by direct oxygen release or release via halodioxides such as hypochlorite, hypobromite or hypoiodite, ozone, hydrogen peroxide, or chlorodioxide. It is done. Examples of solid bleaches are particulate heterocyclic N-haloimides such as trihalocyanuric acid and dihalocyanuric acid, and their salts such as sodium dihalocyanurate and potassium dihalocyanurate, the term “halo” being chlorine, bromine or Represents iodine. A preferred halo group is chlorine. Corresponding dihaloisocyanurates and trihaloisocyanurates can also be used. Other N-haloimides such as N-halosuccinimide, N-halomalonimide, N-halophthalimide and N-halonaphthalimide may be used. Further suitable N-haloimides are 1,3-dihalo-5,5-dimethylhydantoin, N-monohalo-C, C-dimethylhydantoin, methylene-bis (N-halo-C, C-dimethylhydantoin), 1, 3-dihalo-5-methyl-5-isobutylhydantoin, 1,3-dihalo-5-methyl-5-ethylhydantoin, 1,3-dihalo-5,5-diisobutylhydantoin, 1,3-dihalo-5-methyl Hydantoins such as -5-n-amylhydantoin.

A preferred solid bleach is hypochlorous acid liberator. Useful hypochlorous acid liberators are trichloromelamine and dry particulate water-soluble anhydrous inorganic salts such as calcium hypochlorite and lithium hypochlorite. Hypochlorous acid release agents are sodium p-toluene-sulfo-chloramine trihydrate (chloramine-T), sodium benzene-sulfo-chloramine dihydrate, calcium hypochlorite tetrahydrate, if desired. Manufactured by combining trihydrate sodium or its normal Na ₃ PO ₄ · 12H ₂ O trisodium phosphate with alkali metal hypochlorite (eg, sodium hypochlorite) 0.5 It may be a stable solid complex or hydrate such as chlorinated trisodium phosphate containing -4% available chlorine. Apart from potassium, sodium and calcium, other salts such as lithium, magnesium and ammonium salts may be used.

  In compositions using alkali metal hypochlorites and alkaline earth metal hypochlorites as chlorine sources, these compounds are anhydrously dispersed to prevent alteration of nonionic surfactants in the composition. It can be used in solid form.

  Preferred sources of hypochlorous acid are dichloroisocyanurate and trichloroisocyanurate and chloramine-T (p-toluenesulfochloramine).

  The source of hydrogen peroxide is percarbonate, persilicate, persulfate, perborate, peroxy acid, dialkyl peroxide, diacyl peroxide, preformed percarboxylic acid, non-aqueous peroxide. Selected from the group of oxides, inorganic peroxides, hydroperoxides, and mixtures thereof. Specific examples include peroxyformic acid, peroxyacetic acid, monoperphthalate, monoperoxysuccinate, monoperoxysulfate, monoperoxyphosphate, peroxyoctanoic acid, peroxybenzoic acid, ethylperoxycarbonate, phthalimidoperoxyhexane. Examples include acids, sodium perborate and sodium percarbonate.

  Usually, the oxygen generator is used in a proportion of about 20 to 85%, preferably about 25 to 50%, more preferably 35 to 45% by weight of the composition.

  It has been found that the best dispersion is obtained with a solid bleaching agent having a particle size of less than 400 μm, preferably 10 to 200 μm, most preferably 30 to 110 μm. According to an example, the bleached particles have a particle size of about 70 μm.

2. Thickener The composition also contains a conventional thickener in an amount of 0.1 to 10% by weight to obtain a product consistency of the cream or paste.

  Thickeners that impart thickening, ie thickeners or suspending agents, are known in the art and are water-soluble or water-insoluble, dispersible or colloid-forming, and monomers or polymers. Of course, it must be stable in these compositions, eg, alkaline and stable to bleaching agents such as sodium hypochlorite and sodium peroxide. Preferred thickeners generally comprise smectite and / or attapulgite colloid-forming inorganic clays. These materials are generally used in an amount of about 1.5 to 10% by weight, preferably 2 to 5% by weight, to provide the desired thickening for the formulation.

  Examples of the smectite clay include montmorillonite (bentonite), hectorite, attapulgite, smectite, and saponite. Montmorillonite clay is preferred, Tixogel® MP100, Tixogel® VP, Tixogel® MIO from Sud-chemie, Bentone® 34, Bentone® Gel, Bentone® from Water Ingredients Trademark) SD-1, Tixogel (registered trademark) No. 1 from Georgia Kaolin Company. 1 and Gelwhite (registered trademark) GP, H, etc .; available from the Georgia Kaolin Company under the trade names such as ECCAGUM (registered trademark) GP, H, etc .; Attapulgite clays include those commercially available from Engelhard Minerals and Chemicals Corporation under the trade name Attagel®, ie, Attagel® 40, Attagel® 50 and Attagel® 150. A mixture of smectite type and attapulgite type having a weight ratio of 4: 1 to 1: 5 is also useful. Thickeners or suspending agents of the above type are known in the art and are described, for example, in US Pat. No. 3,985,668, which is incorporated herein by reference. The Preferred clays are organically modified bentonite, organically modified smectite and synthetic hectite.

  Conventionally used organic polymer thickeners such as polyacrylates, for example, powder polyacrylates having a molecular weight of 1,000 to 20,000 can be used. Suitable polyacrylates such as sodium polyacrylate are Alcosperse® 130D (molecular weight 15,000) available from Alco Chem. Co., Alcosperse® 149D available from Alco Chem. Co. ( Molecular weight 2,000), Alcrysol® 45N (molecular weight 4,500) available from Rohm & Haas Co., Polymer WSP10 (butene copolymer), WSP01 (SE / P (styrene / ethylene oxide) from Water Ingredients / Propylene oxide block copolymer), WSP52 (styrene-ethylene / butylene triblock polymer), WSP50 (styrene-ethylene / butylene-styrene triblock copolymer), WSP22 (polybutene), PEO-1 (polyethylene oxide).

  The present composition preferably contains 0.1 to 6% by weight, preferably 1 to 4% by weight, more preferably 2 to 3% by weight of a thickener.

  Apart from the chemical stability as obtained with these compositions, when a mixture containing both clay and polymer is used as a thickener, it has a high physical stability (i.e. stable without phase separation). It was further found that dispersion was also obtained. Such a mixture is effective to increase physical stability when the clay: polymer ratio is 1:10 to 10: 1, preferably 1: 3 to 2: 1. Most preferably, these mixtures are used in combination with paraffin oil which is a non-aqueous liquid (see below).

3. Thickener activator The present composition may contain up to 0.3% by weight of a thickener activator. Such activators improve the dispersibility of the clay thickener and are known in the art. Suitable activators for use with clay include lower alcohols such as ethanol, and propylene carbonate.

4). Auxiliary compounds The composition may further contain up to 23% by weight of auxiliary compounds. Auxiliary compounds are, for example, surfactant detergents, builder salts (such as phosphates, silicates and carbonates), antifoaming agents, fragrances, gloss enhancers, colorants and sequestering agents.

  Surfactants that can be used are linear or branched alkali metal mono- and / or di- (C8-14) alkyldiphenyl oxide mono- and / or di-sulfonates, for example DOWFAX ( (Registered trademark) 3B-2 and DOWFAX (registered trademark) 2A-1. Other suitable surfactants include primary alkyl sulfates, alkyl sulfonates, alkylaryl sulfates, secondary alkyl sulfates, alkyl phosphonates. For example, (C10-18) sodium alkyl sulfate such as sodium dodecyl sulfate; (C10-18) sodium alkyl sulfonate such as sodium hexadecyl-1-sulfonate; and (C12-18) alkyl benzene sulfone such as sodium dodecylbenzene sulfonate. Examples include sodium acid. The corresponding potassium salt may be used.

  Sodium carbonate can be added as a builder salt and act as a buffer to maintain the desired pH level. The composition of the present invention can also contain an inorganic builder salt such as NaTPP or an organic builder salt such as an alkali metal salt of polycarboxylic acid.

  A preferred inorganic builder salt is an alkali metal polyphosphate such as sodium tripolyphosphate (TPP). One or more other detergent builder salts can be used in place of all or part of the alkali metal polyphosphate. Other suitable builder salts are alkali metal borates, phosphates and bicarbonates. Specific examples of such builders are sodium tetraborate, sodium pyrophosphate, potassium pyrophosphate, sodium bicarbonate, sodium hexametaphosphate, sodium sesquicarbonate, sodium mono- and di-orthophosphate, potassium bicarbonate, and sodium zeolite. Or it is zeolite potassium.

  Because the compositions of the present invention are generally high in concentration and can therefore be used at relatively low doses, any phosphate builder (eg, sodium tripolyphosphate) can be used with an auxiliary builder such as an alkali metal polycarboxylic acid. It is desirable to supplement. Suitable alkali metal polycarboxylic acids are the alkali metal salts of citric acid and tartaric acid, such as monosodium citrate and disodium citrate (anhydrides). The sodium salt of citric acid and tartaric acid is preferred.

  The addition of an antifoam agent is important to increase the efficiency of the dishwasher and to minimize instability effects that can be caused by the presence of excess foam in the washer during use. Foam can be sufficiently reduced by a suitable choice of the type and / or amount of detergent active material that is the main foaming component. The degree of foaming also depends to some extent on the hardness of the washing water in the washing machine. Therefore, by appropriately adjusting the ratio of NaTPP having a water softening effect, it can help to prevent foaming to a desired degree. However, it is generally preferred to include a foam inhibitor or foam inhibitor that is stable to chlorine bleach. Particularly effective are, for example, alkyl phosphate esters (PCUK-PAE) available from BASF-Wyandotte, and alkyl acid phosphate esters (eg SAP and LPKN-158, respectively) available from Hooker and Knapsack, for example. Other antifoaming agents that may be used include, for example, known silicones such as Dow Corning 1400 and Dow Corning 1500, which are polysiloxanes mixed with dispersed silica.

  Alkali metal silicates, such as sodium silicate, that provide protection for hard surfaces such as alkaline and fine china may be used. Sodium silicate protects the washer from corrosion. Preferred silicates are sodium disilicate and sodium metasilicate.

  Most of the components of the composition can be added to the non-aqueous liquid composition in the form of a dry powder or non-aqueous dispersion or non-aqueous solution.

  The sequestering agent can be used in large quantities if necessary. Preferred sequestering agents are compounds that have strong complexing ability together or combined with calcium and magnesium. Most preferred are the sodium and potassium salts of NTA (nitrilotriacetic acid), MGDA (methylglycine diacetic acid), EDTA (ethylenediaminetetraacetic acid), and (S, S) -EDDS (ethylenediamine-N, N′-diethyl). Succinic acid), or a mixture thereof. The preferred amount of sequestering agent is 10-23% by weight.

  Various other conventional ingredients such as perfumes and hydrotropes, preservatives, gloss enhancers, dyes and pigments may be included in these compositions in small amounts, typically less than about 4% by weight, Of course, all are stable to chlorine bleach and high alkalinity (many properties of the ingredients). Particularly preferred for coloring are the aluminosilicate chlorinated phthalocyanines and polysulfides which exhibit the preferred green and blue shades, respectively.

5. Non-aqueous liquids Non-aqueous liquids that can be used according to the present invention are generally animal oils, including vegetable oils, mineral oils, synthetic oils or fish oils, and mixtures thereof. Non-inclusive examples are paraffin oil, coconut oil, salad oil and olive oil.

  The non-aqueous liquids can be used alone or in admixture to obtain the desired viscosity and stability of the liquid product. It is preferred to use a non-aqueous liquid that is a mixture of at least two liquids. Preferred mixtures contain 0.1 to 5% by weight of saturated or unsaturated fatty acids having from 12 to 24 carbon atoms as co-liquid in addition to the above liquid. Examples of such auxiliary liquids include, for example, silicone oils; lower alkanes such as hexane, heptane, octane; soybean oil methyl esters (eg, Steposol® SB-W); soybean oil fatty acid methyl / ethyl lactate blends (E.g. Steposol <(R)> SC); isobutyl esters (sold from Rhodiasolve <(R)> DIB, Rhodia); and other types of liquids such as ethylene glycol ethers.

  The component dissolves only partially or not at all in the liquid and auxiliary liquid and forms an emulsion, dispersion or suspension in the liquid.

  The compositions of the present invention have good viscosity and stability characteristics, remain stable above room temperature, and can be injected at low temperatures. A particularly useful composition is 35 to 45% by weight solid sodium dihaloisocyanuric acid (NaDCCA) having an average particle size of about 60 to 80 μm, and a clay thickener such as Tixogel® MP100 0.5 to 3 wt%, ethanol 0.02 to 0.04 wt%, and paraffin oil 64.48 to 51.96 wt% to 100 wt%. It was found that the stability was excellent in that no oxygen formation occurred. The stability of the compositions of the present invention is measured by thiosulfate titration according to ASTM D 2022, and is shown as bleaching activity decreases by less than 5% after 6 months storage at 40 ° C. For this reason, the composition can be stored in a sealed container for several months under standard storage conditions of 0-40 ° C. The object of the present invention is therefore to obtain a storage-stable package (or container) containing the composition of the invention.

Methods for Preparing Liquid Compositions The compositions of the present invention can be prepared by conventional means. In a suitable method for producing the composition of the invention, the method comprises:
i) forming a pregel of non-aqueous liquid and polymer at high temperature, chemically inert to the bleach and having a bleach solubility of less than 10 mg / l;
ii) producing a pregel of clay, non-aqueous liquid and optionally thickener activator in a high shear mixer;
iii) adding the pregel of ii) to the pregel of i) with stirring;
iv) adding a solid bleach and, optionally, auxiliary compounds.

  A suitable elevated temperature for use in step i) is higher than 100 ° C, preferably about 150 ° C. High shear mixers used in step ii) are known in the art and include combinations such as Silverson, ULTRA TURRAX T25 and Heidolph DIAX 600.

  The present invention can be put into practical use in various ways, and a number of specific embodiments for describing the present invention will be described.

  The viscosity profile is determined for a structured liquid containing 55% paraffinic oil, 3% fractionated coconut oil, 2% Tixogel® MP100 and 40% dichloroisocyanuric acid (NaDCCA).

  The following examples of formulations according to the present invention illustrate the present invention and are not intended to limit the present invention.

Pregel pregel polymer (WSP01):
Stir a mixture of 96 wt% paraffin oil and 4 wt% WSP® 01 (styrene-ethylene / propylene block copolymer, sold by Water Ingredients, Zeist, The Netherlands) to above 160 ° C. Heated for about 60 minutes. After WSP01 was completely dissolved, it was cooled slowly with stirring.

  Stir the above procedure, here 99% by weight paraffin oil and 1% by weight WSP® 50 (styrene-ethylene / butylene-styrene triblock polymer, sold by Water Ingredients, Zeist, The Netherlands) solution Then, pregel WSP50 was manufactured according to the procedure of heating to a temperature higher than 160 ° C. for about 60 minutes. WSP50 was dissolved and cooled slowly with stirring.

Pregel clay:
A mixture of 88% by weight paraffin oil and 10% by weight Tixogel® MP100 (sold from Sued-Chemie, Munich, Germany) is placed in a plastic beaker and 5 to 5 using a high shear mixer (Ultra Turrax). Stir for 10 minutes (speed: 16,000 rpm), then add 2 wt% ethanol to the formulation and stir for an additional 10 minutes at 16,000 rpm using a high shear mixer.

Procedure Paraffin oil (32.5%) and pregel clay (15%) were mixed for 5 minutes, then pregel polymer (12.5%) was added and mixing continued for 20 minutes. NaDCCA powder (40%) (sold from Clearon, Terneuzen, The Netherlands) was then added and the mixture was stirred for an additional 30 minutes.

Formulations The following formulations according to the present invention were prepared.
A) 50% pregel WSP01 + 10% pregel MP100 + 40% NaDCCA
B) 45% pregel WSP01 + 15% pregel MP100 + 40% NaDCCA
C) 32.5% paraffin oil + 15% pregel MP100 + 12.5% pregel WSP01 + 40% NaDCCA
D) 42.5% paraffin oil + 15% pregel MP100 + 12.5% pregel WSP01 + 30% NaDCCA
E) 57% paraffin oil + 2% pregel WSP01 + 1% pregel MP100 + 40% NaDCCA
F) 58% paraffin oil + 0.5% pregel WSP50 + 1.5% pregel MP100 + 40% NaDCCA
The compositions were tested for their stability by measuring phase separation as follows. The product was placed in a graduated cylinder and maintained at 40 ° C. for 40 days. The amount of oil separated was read from the calibration curve and expressed as a percentage of the total amount. None of the compositions of the present invention showed phase separation (oil amount 0%), while the comparative composition produced from the clay-only pregel showed substantial phase separation (range 5-15%). Oil amount).

Claims (13)

A non-aqueous bleach detergent composition comprising:
a) a solid bleach in an amount of 20% to 85% by weight, the solid bleach being a hypochlorous acid release agent;
b) a thickener in an amount of 0.1 to 10% by weight, wherein the thickener is a mixture of clay and polymer with a clay: polymer ratio of 1:10 to 10: 1;
c) a thickener activator in an amount of 0 to 0.3% by weight;
d) an auxiliary compound in an amount of 0 to 23% by weight;
e) a non-aqueous liquid in an amount of at least 14.9% by weight that is chemically inert to the bleach and has a solubility of the bleach of less than 10 mg / l, comprising vegetable oil, mineral oil, A non-aqueous bleach detergent composition comprising a synthetic oil or an animal oil including fish oil and a non-aqueous liquid selected from mixtures thereof.   The bleaching agent is dihaloisocyanurate, trihaloisocyanurate, chloramine-T, N-halosuccinimide, N-halomalonimide, N-halophthalimide, N-halonaphthalimide, 1,3-dihalo-5,5. -Dimethylhydantoin, N-monohalo-C, C-dimethylhydantoin, methylene-bis (N-halo-C, C-dimethylhydantoin), 1,3-dihalo-5-methyl-5-isobutylhydantoin, 1,3- Dihalo-5-methyl-5-ethylhydantoin, 1,3-dihalo-5,5-diisobutylhydantoin, 1,3-dihalo-5-methyl-5-n-amylhydantoin, trihalomelamine, and mixtures thereof (here Wherein the halo represents chlorine.).   The bleaching detergent composition according to claim 1 or 2, wherein the bleaching agent has a particle size of less than 400m, preferably 10-200m, most preferably 30-110m.   The bleaching detergent composition according to any one of claims 1 to 3, wherein the clay is organically modified smectite, organically modified bentonite, or synthetic hectorite.   The bleach detergent composition according to any one of claims 1 to 4, wherein the polymer is a styrene / ethylene oxide / propylene oxide block (co) polymer or a styrene-ethylene / butylene-styrene triblock copolymer.   Said auxiliary compounds are surfactants, bleach activators, enzymes, colorants, fragrances, phosphates, antifoaming agents, inorganic carbonates or bicarbonates, gloss enhancers, sequestering agents and non-aqueous builders, or they The bleaching detergent composition according to any one of claims 1 to 5, which is selected from a mixture of:   Bleaching detergent composition according to any one of claims 1 to 6, comprising 25 to 50% by weight, preferably 35 to 45% by weight of the bleaching agent.   Bleaching according to any one of the preceding claims, comprising 0.1 to 6% by weight, preferably 0.1 to 4% by weight, more preferably 0.5 to 3% by weight of the thickener. Cleaning composition.   The bleach detergent composition according to any one of claims 1 to 8, wherein the thickener is a clay: polymer ratio of 1: 3 to 2: 1.   The bleach detergent composition according to any one of claims 1 to 9, wherein the non-aqueous liquid is paraffin oil.   The bleach detergent composition according to any one of claims 1 to 10, wherein the thickener activator is propylene carbonate.   The airtight container containing the bleach detergent composition of any one of Claims 1-11. A method for producing the bleaching detergent composition according to any one of claims 1 to 11,
i) forming a pregel of polymer and non-aqueous liquid at high temperature that is chemically inert to the bleach and the solubility of the bleach is less than 10 mg / l;
ii) producing a pregel of clay, said non-aqueous liquid and optionally a thickener activator in a high shear mixer;
iii) adding the pregel of ii) to the pregel of i) while stirring;
iv) A process for preparing a bleach detergent composition comprising the steps of adding a solid bleach and optionally an auxiliary compound.