DE60217316T2 - detergent composition - Google Patents

Abstract

A detergent composition in the form of a substantially anhydrous liquid, gel or paste and which comprises a premix of an amine oxide surfactant and a solvent therefor selected from C3 to C10 alkylene and polyalkylene diols and mixtures thereof. The invention also relates to unit dose forms containing the detergent compositions and processes for making a premix for use in said compositions.

Description

TECHNICAL TERRITORY

The The present invention is in the field of detergents. Especially relates to detergent compositions containing an amine oxide surfactant include. The invention also relates to unit dosage forms, containing the detergent compositions, and methods for preparing a premix for use in the compositions.

BACKGROUND THE INVENTION

amine oxide are in commercial Cleaning compositions commonly used. When in detergent for use in automatic dishwashing are for removing grease and reducing filming and staining very effective on dishes and crockery. These surfactants will be by oxidation tertiary Amines prepared, the oxidation is carried out in liquid media; if the amine oxide is to be used in solid compositions, would therefore be one Post-treatment step, such as spray drying or evaporation, required, what the cost of capital and energy requirements of the manufacturing process increase would.

One Cleaning bleach is part of most of the dishwashing products. Bleach types can with the amine oxide in the dishwashing product interact, this interaction not only lowers the Amount of bleach and amine oxide necessary for the dishwashing process available is, but also produces types of amines, the problems of bad smell arise.

The common Synthesis for the preparation of amine oxides is carried out in aqueous solution, such as it is taught, for example, in US-A-4,748,275 and US-A-4,247,480. The resulting Amine oxides are in aqueous Liquid Although this is for aqueous Detergent useful is, but not readily available in anhydrous liquid detergents be used. Process for the preparation of amine oxides in organic solvents are also known in the art. US-A-3,776,959 discloses a process for the preparation of amine oxides in nonpolar solvents. US-A-5,130,488 a process for the preparation of amine oxides in an organic Solvent. The organic solvent can a solvent in which the amine oxide is soluble at the reaction temperature, but insoluble at a lower temperature.

WO-A-0242408 refers to a water-soluble Bag suitable for use in automatic dishwashing is and which comprises several chambers which are generally one above the other are arranged or arrangeable relationship, each one or contains several cleaning agents or auxiliary ingredients and wherein the bag has a volume of about 5 to about 70 ml and a longitudinal / lateral aspect ratio in Range of about 2: 1 to about 1: 8. The water-soluble Bag optimal dispensing of dishwashing detergent.

In Units of divided doses of dishwashing detergent, especially water-soluble bags, Capsules and pillows, are for Consumers very attractive. A challenge with the manufacturer in the design of water-soluble Detergents containing amine oxide surfactants, especially in liquid form, is that the amine oxide in a solvent solved must be, that for the dishwashing process is suitable with the material of the water-soluble unit dosage form compatible is and the resolution of the unit dose detergent.

SUMMARY THE INVENTION

According to a first aspect of the invention, there is provided a detergent product in the form of powder / liquid two-chamber bags, wherein the liquid chamber comprises a detergent composition in the form of a substantially anhydrous liquid and which comprises a premix of an amine oxide surfactant and a solvent therefor selected from C ₃ to C ₁₀ alkylene and polyalkylene diols and mixtures thereof, and a suds suppressor and the powder composition comprises a cleaning bleach and suds suppressor.

worin R₁ aus einem Alkyl, Hydroxyalkyl, Acylamidopropyl und Alkylphenylgruppen mit durchschnittlich mindestens 12 Kohlenstoffatomen in der Alkyleinheit ausgewählt ist; und R₂ und R₃ unabhängig voneinander aus C_1-3-Alkyl- und/oder C_2-3-Hydroxyalkylgruppen und Polyethylenoxidgruppen mit 1 bis 3, vorzugsweise 1, Ethylenoxideinheiten ausgewählt sind. Bevorzugte Aminoxide sind jene, worin die R₁-Alkyleinheit des Aminoxids durchschnittlich von 13 bis 17 Kohlenstoffatome enthält.The term "substantially anhydrous" as used herein refers to detergent compositions containing less than 10% by weight, preferably less than 8% by weight and more preferably less than 5% by weight of the detergent composition free water Water can by extracting 2 g of the composition in 50 ml of dry methanol for 20 minutes at room temperature and then analyzing a 1 ml aliquot of the methanol by Karl Fischer titration. Amine oxides for use herein have the formula:

wherein R _{1 is selected} from an alkyl, hydroxyalkyl, acylamidopropyl and alkylphenyl groups having on average at least 12 carbon atoms in the alkyl moiety; and R ₂ and R _{3 are} independently selected from C _1-3 alkyl and / or C _2-3 hydroxyalkyl groups and polyethylene oxide groups having from 1 to 3, preferably 1, ethylene oxide units. Preferred amine oxides are those wherein the R ₁ alkyl moiety of the amine oxide contains an average of from 13 to 17 carbon atoms.

preferred Amine oxides from the standpoint of fat removal and reduction of Filming and staining as well as their environmental profile are Tetradecyldimethylamine oxide, hexadecyldimethylamine oxide and mixtures from that.

The detergent composition of the invention comprises a solvent in which the amine oxide is soluble. The solvent used in the detergent compositions of the invention is selected from C ₃ to C ₁₀ alkylene and polyalkylene diols and mixtures thereof. Preferred solvents for use herein are cyclic or noncyclic C ₅ to C ₁₀ diols, preferably selected from 1,4-cyclohexanedimethanol, 1,6-hexanediol, 1,7-heptanediol, and mixtures thereof. A preferred solvent is 1,4-cyclohexanedimethanol. This solvent offers excellent compatibility with pouch, capsule and cushioning materials as well as detergent ingredients. In addition, it promotes dissolution of the detergent composition by avoiding the formation of a gel phase in the dilution of the amine oxide in the wash liquor.

Other preferred solvents for this purpose Use is propylene glycols, preferably dipropylene glycol. dipropylene also offers excellent compatibility with bag materials as well as detergent ingredients.

The Amine oxide surfactant and the solvent Generally take the form of a premix, before adding other ingredients of the composition, such as suds suppressors, such as described below, is formed.

automatic Dishwashers work in a spray mode. The spraying activity, combined with some contaminants resulting from the cleaning process stem, and some of the detergent ingredients, tends to Causing foam, which in turn reduces the cleaning effect. Although the amine oxides used for the present invention are suitable, a good foam profile the foam can continue by the addition of a suds suppressor be reduced. Thus, the present invention provides a detergent composition, the one foam oppressor includes.

In a preferred embodiment of the invention, a unit dose detergent product is provided in the form of a water-soluble bag containing the detergent composition of the invention. The detergent composition is in the form of liquid. The viscosity of the liquid can be made simple to achieve a desired delivery time. For situations where rapid dispensing of the detergent is desired, a liquid having a viscosity of about 10 to about 1000 mPa.s (as at a shear rate of 1 s ^-1 with a Contraves rheometer with a parallel plate of 40 mm diameter measured at 25 ° C), which would be useful, for example, for short cycle dishwashing. For situations in which retention of the detergent liquid is desired, for example in the case of dishwashing processes (which are carried out in a dishwasher with a dispenser that allows water flow), including a pre-wash step and where dispensing of the detergent is desired only in the main wash For example, a highly viscous detergent liquid having a viscosity of, for example, about 1,000 mPa.s to about 100,000 mPa.s (as measured at a shear rate of 1 s ^-1 with a Contraves Rheometer with a parallel plate of 40 mm diameter at 25 ° C is desired ) having.

The Unit dose detergent product is in the form of a bag with at least two different chambers, at least one of the chambers is the detergent composition of the invention contains. The bag comprises a chamber containing the detergent of the invention in liquid Contains form, and another chamber containing a detergent in solid form contains comprising a cleaning bleach and suds suppressor.

There is provided a detergent product in the form of powder / liquid two-chamber bags, the liquid composition comprising an amine oxide surfactant, a solvent therefor selected from C ₃ to C ₁₀ alkylene and polyalkylene diols and mixtures thereof, and a suds suppressor, and wherein the Powder composition, a cleaning bleach and suds suppressor and additionally optionally another post-added liquid capable of acting as a binder for the powder composition comprises. The weight ratio of amine oxide surfactant to suds suppressor is from about 1:20 to about 1: 1, preferably from about 1:10 to about 1: 6 in the liquid chamber. The powder composition preferably comprises from 0.5% to 20%, more preferably from 1% to 5% by weight of the powder composition of suds suppressor or other liquid which acts as a binder. The amine oxide surfactant and the solvent are preferably provided in the form of a premix as described above.

Of the Suds suppressors not only reduces foaming but also acts as a binder for the powder phase and provides shine benefits. From the standpoint of processability would out the suds suppressor ideally located in the powder chamber. The powder composition can cause dusting problems which, inter alia, leads to inadequate closure of the Bag leads. The preparation of the powder chamber usually requires a tamping step. Pounding the powder creates a bag with better shape and aesthetics, when done on slightly wet powder. The suds suppressor or the other liquid Binders also reduce the segregation of the powder. If the suds suppressor however, only in the powder chamber, he may be only after the components of the liquid chamber to the wash liquor what causes foaming, which is not only the cleaning performance impaired but also potentially water leakage from the dishwasher is generated. It became surprising found out that Beu tel, which has an optimal stability profile and provide optimum cleaning and equipment can be by adding a part of the suds suppressor into the liquid chamber and a part is added to the powder chamber. A preferred bag includes amine oxide and suds suppressor in a weight ratio of approximately 1:10 to about 1: 6 in the liquid chamber and suds suppressors of about 1 to about 5% by weight of the powder composition in the powder chamber. The weight ratio of Powder composition to liquid Composition is about 30: 1 to about 1:30, preferably from about 20: 1 to about 5: 1.

According to one Another aspect of the invention is a surfactant premix provided for use in preparing the detergent compositions the invention is suitable. The surfactant premix comprises an amine oxide and a solvent, selected from 1,4-cyclohexanedimethanol, 1,6-hexanediol, 1,7-heptanediol and Mixtures thereof. The amine oxide and the solvent are preferred in a weight ratio of about 10: 1 to about 0.5: 2, preferably about 5: 1, until about 1: 2 and more preferably about 4: 1 to about 2: 2nd A surfactant premix containing such a high level of amine oxide surfactant is in the formulation of concentrated or compact liquid Detergent composition particularly suitable.

According to one Another aspect of the invention is a method of manufacturing the surfactant premix used to prepare the detergent compositions provided by the invention, wherein a tertiary amine with an aqueous solution of hydrogen peroxide in the presence of solvent for the resulting Amine oxide is reacted. The product obtained by this method Product is compatible with the bag, capsule and pillow materials and improves the resolution of the materials in water.

It is also another method for preparing the surfactant premix, for preparing the detergent compositions of the invention is provided, wherein an aqueous solution of amine oxide with a solvent mixed for it is followed by the removal of water from the resulting Mixture. This procedure allows the preparation of the surfactant premix used to prepare the detergent compositions the invention is used, starting from readily available commercial Materials.

According to a last aspect of the invention, the use of the above-described A single dose automatic dishwashing detergent product is provided.

DETAILED DESCRIPTION OF THE INVENTION

The The present invention involves detergent compositions Consider which include an amine oxide surfactant and a solvent therefor. Unit dosage forms containing the detergent compositions and methods of making a premix for use in the compositions are also contemplated herein.

worin R₁ aus einer Alkyl-, Hydroxyalkyl-, Acylamidopropyl- und Alkylphenylgruppe oder Mischungen davon ausgewählt ist und durchschnittlich mindestens 12, vorzugsweise von 13 bis 17, mehr bevorzugt von 14 bis 16 Kohlenstoffatome in der Alkyleinheit enthält; und R₂ und R₃ unabhängig C_1-3-Alkyl- oder C_2-3-Hydroxyalkylgruppen oder eine Polyethylenoxidgruppe mit 1 bis 3, vorzugsweise 1, Ethylenoxidgruppen sind. Besonders bevorzugt werden Aminoxide, worin R₁ ein C_12-18-Alkyl ist und R₂ und R₃ Methyl oder Ethyl sind. Bevorzugte Aminoxide zum diesbezüglichen Gebrauch sind Tetradecyldimethylaminoxid, Hexadecyldimethylaminoxid und Mischungen davon.The ingredients of the detergent compositions of the invention are described below:
amine oxide
Amine oxides suitable for the detergent compositions of the invention have the formula:

wherein R _{1 is selected} from an alkyl, hydroxyalkyl, acylamidopropyl and alkylphenyl group or mixtures thereof and contains an average of at least 12, preferably from 13 to 17, more preferably from 14 to 16 carbon atoms in the alkyl moiety; and R ₂ and R _{3 are} independently C _1-3 alkyl or C _2-3 hydroxyalkyl groups or a polyethylene oxide group having from 1 to 3, preferably 1, ethylene oxide groups. Particularly preferred are amine oxides wherein R _{1 is} C _12-18 alkyl and R ₂ and R _{3 are} methyl or ethyl. Preferred amine oxides for use herein are tetradecyldimethylamine oxide, hexadecyldimethylamine oxide, and mixtures thereof.

The Amine oxide is usually in a total concentration of about 0.01 Wt% to about 12 Wt%, more preferably about From 0.1% to about 5% by weight, most preferably about 0.3 wt% to about 3% by weight of the composition is present. In multi-chamber embodiments is the concentration of amine oxide from about 3% to about 12% by weight, preferably about 5% by weight to about 9% by weight of the detergent composition in liquid form.

solvent

A solvent for the amine oxide is a substance capable of solubilizing and solubilizing the amine oxide under storage conditions. The solvents used in the present invention preferably avoid gel phase formation and facilitate the dissolution of the amine oxide in the wash liquor. Solvents for use herein are selected from C ₃ to C ₁₀ alkylene and polyalkylene diols and mixtures thereof. Preferred solvents for use herein are cyclic or noncyclic C ₅ to C ₁₀ diols, preferably selected from 1,4-cyclohexanedimethanol, 1,6-hexanediol, 1,7-heptanediol, and mixtures thereof. Other preferred solvents for use herein are propylene glycols, especially dipropylene glycol.

Other for this purpose Useful ingredients are described below. These ingredients can in the liquid Detergent compositions of the invention can be used, and you can also in solid detergent compositions in the case of A multi-chamber embodiments be used.

surfactant

The compositions and products of the invention may comprise other surfactants in addition to the amine oxide surfactants. The additional surfactant is preferably low in foaming per se or in combination with other ingredients (ie, suds suppressors). Surfactants useful herein include anionic surfactants such as alkyl sulfates, alkyl ether sulfates, alkyl benzene sulfonates, alkyl glyceryl sulfonates, alkyl and alkenyl sulfonates, alkyl ethoxy carboxylates, N-acyl sarcosinates, N-acyl taurates and alkyl succinates and sulfosuccinates wherein the alkyl, alkenyl or acyl moiety is linear or branched C ₅ -C ₂₀ , preferably C ₁₀ -C ₁₈ ; cationic surfactants such as chloroesters (US-A-4228042, US-A-4239660 and US-A-4260529) and Mo no-C ₆ -C ₁₆ -N-alkyl or alkenylammonium surfactants wherein the remaining N positions are substituted by methyl, hydroxyethyl or hydroxypropyl groups; low and high cloud point nonionic surfactants and mixtures thereof, including nonionic alkoxylated surfactants (especially ethoxylates derived from C ₆ -C ₁₈ primary alcohols), ethoxylated-propoxylated alcohols (eg, ^® SLF 18 from BASF), epoxy-capped poly (oxyalkylated) alcohols (e.g., poly-Tergent ^® SLF18B of BASF -. see WO-A-94/22800), ether-capped poly (oxyalkylated) alcohol surfactants, and polyoxyethylene / polyoxypropylene block polymeric compounds such as PLURONIC ^®, REVERSED PLURONIC ^® and TETRONIC ^® from BASF-Wyandotte Corp., Wyandotte, Michigan, USA; amphoteric surfactants such as alkyl amphocarboxylic surfactants such as Miranol ^™ C2M; and zwitterionic surfactants, such as the betaines and sultaines; and mixtures thereof. Surfactants useful herein are disclosed in, for example, US-A-3,929,678, US-A-4,259,217, EP-A-0414549, WO-A-93/08876 and WO-A-93/08874. Surfactants are typically present at a level of from about 0.2 wt% to about 30 wt%, more preferably from about 0.5 wt% to about 10 wt%, most preferably about 1 Wt .-% to about 5 wt .-% of the composition present. Preferred surfactants for use herein are low sudsing and include low cloud point nonionic surfactants and mixtures of higher sudsing surfactants with low cloud point nonionic surfactants which act as suds suppressors for them.

Builder

To Builders for use in the detergent compositions or products of the invention include builders which are water-soluble hardness ion complexes form (masking builder) such as citrates and polyphosphates, e.g. B. Sodium tripolyphosphate and sodium tripolyphosphate hexahydrate, potassium tripolyphosphate and mixed sodium and potassium tripolyphosphate salts, and builders, form the hardness precipitates (Ausfällungsbuilder) such as carbonates, z. For example, sodium carbonate. The builder is usually in a concentration of about 30 to about 80 wt .-%, preferably from about 40 to about 70 wt .-% of Composition available. It is also preferred that the ratio of Masking builder to precipitation builder of about 10: 1 to about 1: 1, preferably about 8: 1 to 2: 1.

Silicate

To Silicates suitable for use in the invention include, in part water-soluble or insoluble Builder, such as crystalline layered silicates (EP-A-0164514 and EP-A-0293640) and aluminosilicates, including Zeolites A, B, P, X, HS and MAP.

Amorphous sodium silicates having a SiO ₂ : Na ₂ O ratio of from 1.8 to 3.0, preferably from 1.8 to 2.4, most preferably 2.0, may also be used herein, although from a longer standpoint Shelf Life Compositions containing less than about 22%, preferably less than about 15% of the total silicate (amorphous and crystalline) are highly preferred.

enzyme

Preferred enzymes for use in the detergent compositions or products of the invention include proteolytic enzymes such as Esperase ^®, Alcalase ^®, Durazym ^® and Savinase ^® (Novo) and Maxatase ^®, Maxacal ^®, Properase ^®, and Maxapem ^® (Gist-Brocades). Other enzymes suitable for use herein include bacterial and fungal cellulases such as Carezyme and Celluzyme (Novo Nordisk A / S); peroxidases; Lipases such as Amano-P (Amano Pharmaceutical Co.), M1 Lipase Lipomax ^® and ^® (Gist-Brocades) and Lipolase ^® and Lipolase Ultra ^® (Novo); cutinases; α- and β-amylases such as Purafect Ox Am ^® (Genencor) and Termamyl ^®, Ban ^®, Fungamyl ^®, Duramyl ^® and Natalase ^® (Novo); pectinases; and mixtures thereof. Enzymes are preferably added herein as prilled granules, granules or cogranules, typically in concentrations ranging from about 0.0001% to about 4% by weight of the pure enzyme composition.

bleach

Bleaching agents suitable for use in the detergent compositions or products of the invention include chlorine and oxygen mordants, especially inorganic perhydrate salts, such as sodium perborate mono- and tetrahydrate, and sodium percarbonate, optionally coated to provide controlled rate of release (see, for example, GB. A-1466799 to sulfate / carbonate coatings), preformed organic peroxyacids and mixtures thereof with organic peroxyacid bleach precursors and / or transition metal-containing bleach catalysts (especially manganese or cobalt). Inorganic perhydrate salts are normally present in concentrations ranging from about 1 wt% to about 40 wt%, preferably from about 2 wt% to about 30 wt%, and more preferably from about 5 wt% to about 25 wt .-% of the composition. Preferred for use herein as part of the carbonate source is sodium percarbonate. Preferred precursors of peroxyacid bleaches for use herein include precursors of perbenzoic acid and substituted perbenzoic acid; cationic peroxyacid precursors; Peracetic acid precursors such as TAED, sodium acetoxybenzenesulfonate and pentaacetylglucose; Pernonanic acid precursors such as sodium 3,5,5-trimethylhexanoyloxybenzenesulfonate (iso-NOBS) and sodium nonanoyloxybenzenesulfonate (MOBS); amide-substituted alkyl peroxyacid precursors (EP-A-0170386) and benzoxazine peroxyacid precursors (EP-A-0332294 and EP-A-0482807). Bleach precursors are typically present in concentrations in the range of from about 0.5% to about 25%, preferably from about 1% to about 10%, by weight of the composition while the preformed organic peroxyacids themselves are usually contained in concentrations ranging from 0.5% to 25% by weight, more preferably from 1% to 10% by weight of the composition. Suitable bleach catalysts for use herein include manganese triazacyclononane and related complexes (US-A-4246612, US-A-5227084); Co, Cu, Mn and Fe bispyridyl amine and related complexes (U.S. Patent 5,146,611) and pentamine acetate cobalt (III) and related complexes (U.S. Patent 4,810,410). Bleaching agents are preferably incorporated into the detergent compositions in solid form.

nonionic Surfactants and suds suppressors

The suds suppressors suitable for use in the detergent compositions or products of the invention include nonionic surfactants having a low cloud point. "Cloud point" as used herein is a well-known property of nonionic surfactants that results from the surfactant becoming less soluble with increasing temperature, the temperature at which the appearance of a second phase is observed is called the "cloud point" (US Pat. cloud point) (see Kirk / Othmer, pp. 360-362). As used herein, a "low cloud point" nonionic surfactant is a nonionic surfactant system ingredient having a cloud point of less than 30 ° C, preferably less than about 20 ° C, and more preferably less than about 10 ° C, and most preferably less than about 7.5 ° C. Typical low cloud point nonionic surfactants include nonionic alkoxylated surfactants, especially ethoxylates derived from primary alcohol and polyoxypropylene / polyoxyethylene / polyoxypropylene (PO / EO / PO) reverse block polymers, and also include such nonionic surfactants surfactants with low cloud point, for example, ethoxylated-propoxylated alcohol (eg. as poly-Tergent SLF ^® 18, BASF) and epoxy-capped poly (oxyalkylated) alcohols (eg. as the poly-Tergent ^® SLF 18B series of nonionic surfactants of BASF, as described, for example, in US-A-5,576,281).

worin R¹ ein linearer Alkylkohlenwasserstoff mit durchschnittlich ungefähr 7 bis ungefähr 12 Kohlenstoffatomen ist, R² ein linearer Alkylkohlenwasserstoff mit ungefähr 1 bis ungefähr 4 Kohlenstoffatomen ist, R³ ein linearer Alkylkohlenwasserstoff mit ungefähr 1 bis ungefähr 4 Kohlenstoffatomen ist, x eine ganze Zahl von ungefähr 1 bis ungefähr 6 ist, y eine ganze Zahl von ungefähr 4 bis ungefähr 15 ist und z eine ganze Zahl von ungefähr 4 bis ungefähr 25 ist.Preferred low cloud point surfactants are the ether-capped poly (oxyalkylated) suds suppressors having the formula:

wherein R ^{1 is} a linear alkyl hydrocarbon having an average of about 7 to about 12 carbon atoms, R ^{2 is} a linear alkyl hydrocarbon having from about 1 to about 4 carbon atoms, R ^{3 is} a linear alkyl hydrocarbon having from about 1 to about 4 carbon atoms, x is an integer of about Y is an integer from about 4 to about 15 and z is an integer from about 4 to about 25.

• (i) einem 4- bis 8-gliedrigen, substituierten oder unsubstituierten, heterocyclischen Ring, der 1 bis 3 Heteroatome enthält; und
• (ii) linearen oder verzweigten, gesättigten oder ungesättigten, cyclischen oder acyclischen, aliphatischen oder aromatischen Kohlenwasserstoffresten mit 1 bis ungefähr 30 Kohlenstoffatomen;
• (b) mit der Maßgabe, dass, wenn R² (ii) ist dann ist entweder:(A) mindestens ein R^I ungleich C₂- bis C₃-Alkylen; oder (B) R² weist 6 bis 30 Kohlenstoffatome auf und mit der weiteren Maßgabe, dass, wenn R² 8 bis 18 Kohlenstoffatome besitzt, R ungleich C₁- bis C₅-Alkyl ist.

Other low cloud point nonionic surfactants are the ether-capped poly (oxyalkylated) having the formula: R _I O (R _II O) _n CH (CH ₃ ) OR _III wherein R _{I is} selected from the group consisting of linear or branched, saturated or unsaturated, substituted or unsubstituted, aliphatic or aromatic hydrocarbon radicals containing from about 7 to about 12 carbon atoms; R _{II may be the} same or different and is independently selected from the group consisting of branched or linear C ₂ to C ₇ alkylene in any given molecule; n is a number from 1 to about 30; and R _{III is} selected from the group consisting of:

• (i) a 4- to 8-membered, substituted or unsubstituted, heterocyclic ring containing 1 to 3 heteroatoms; and
• (ii) linear or branched, saturated or unsaturated, cyclic or acyclic, aliphatic or aromatic hydrocarbon radicals having from 1 to about 30 carbon atoms;
• (b) with the proviso that when R ^{2 is} (ii) then either (A) at least one R ^{I is} other than C ₂ to C ₃ al kylen; or (B) R ² has from 6 to 30 carbon atoms and with the further proviso that when R ² has from 8 to 18 carbon atoms, R is other than C ₁ - to C ₅ alkyl.

To other suitable ingredients for use in the detergent compositions or products of the invention organic polymers with dispersant, anti-redeposition, soil release or other cleaning properties of the invention in concentrations of about 0.1% by weight to about 30% by weight, preferably from about 0.5% to about 15% by weight, most preferably about 1% by weight to about 10% by weight of the composition. Preferred anti-redeposition polymers to conclude here containing acrylic acid Polymers such as Sokalan PA30, PA20, PA15, PA10 and Sokalan CP10 (BASF GmbH), Acusol 45N, 480N, 460N (Rohm and Haas), acrylic acid / maleic acid copolymers, such as Sokalan CP5 and acrylic / methacrylic copolymers. Preferred Antikesselsteinpolymere shut down sulfonated polymers such as Alcosperse 240. Preferred soil release polymers herein include alkylene and hydroxyalkyl celluloses (US-A-4,000,093), polyoxyethylenes, polyoxypropylenes and copolymers thereof and nonionic and anionic polymers the basis of terephthalate esters of ethylene glycol, propylene glycol and mixtures thereof.

Heavy metal sequestrants and crystallization retarder are for use in the detergents of the invention in general in concentrations of about 0.005 wt% to about 20% by weight, preferably about 0.1% by weight to about 10% by weight, more preferably about 0.25% by weight to about 7.5% by weight, and most preferably about 0.5% to about 5% by weight of the composition suitable, for example diethylenetriamine-penta (methylenephosphonate), Ethylenediamine tetra (methylenephosphonate), hexamethylenediamine tetra (methylenephosphonate), Ethylene diphosphonate, hydroxyethylene-1,1-diphosphonate, nitrilotriacetate, Ethylenediaminetetraacetate, ethylenediamine-N, N'-disuccinate in their salt and free Acid forms.

The Detergent compositions herein can be a corrosion inhibitor such as organic silver coating agents in amounts of about 0.05 Wt% to about 10% by weight, preferably about 0.1% by weight to about 5% by weight of the composition (especially paraffins such as Winog 70, available by Wintershall, Salzbergen, Germany), nitrogen-containing corrosion inhibitor compounds (for example, benzotriazole and benzimadazole - see GB-A-1137741) and Mn (II) compounds, especially Mn (II) salts of organic ligands in amounts of about 0.005 Wt% to about 5% by weight, preferably about 0.01 wt% to about 1% by weight, more preferably about 0.02 wt.% To about 0.4 Wt .-% of the composition.

To other suitable ingredients for the detergent compositions or products of the invention Dyes, water-soluble Bismuth compounds such as bismuth acetate and bismuth citrate in concentrations of about 0.01% to about 5%, enzyme stabilizers, such as calcium ion, boric acid, propylene glycol and chlorine bleach scavenger in Concentrations of about 0.01% to about 6%, lime soap dispersant (see WO-A-93/08877), suds suppressor (see WO-93/08876 and EP-A-0705324), polymeric dye transfer inhibitors, optical Brightener, fragrances, fillers and sound.

Liquid detergent compositions can small amounts of low molecular weight primary alcohols such as methanol, Ethanol, propanol and isopropanol contained in the liquid detergent of the present invention can be used. To other suitable Carrier solvents which used in low amounts include glycerol, ethylene glycol, Sorbitol and mixtures thereof.

bag material

The Pouches are two-chamber bags.

Of the Bag is preferably made of a material that is in water soluble or dispersible, and a water solubility of at least 50 %, preferably at least 75% or even at least 95%, measured by the method described below using a glass filter with a maximum pore size of 20 microns.

50 grams ± 0.1 grams of bag material are placed in a pre-weighed 400 ml beaker and 245 ml ± 1 ml of distilled water are added. This is stirred vigorously with a magnetic stirrer set at 63 rad / s (600 rpm) for 30 minutes. The mixture is then filtered through a qualitative sintered glass fluted filter with the pore size defined above (20 microns max.). The water is dried from the collected filtrate by any conventional method and the weight of residual material (representing the dissolved or dispersed fraction). Thereafter, the percent solubility or the percent dispersibility can be calculated.

preferred Bag materials are polymeric materials, preferably polymers, to a foil or a sheet are formed. The bag can be made, for example, by pouring, blow molding, Extrusion or extrusion blow molding of the polymeric material, such as in the art.

preferred Polymers, copolymers or derivatives thereof for use as bag material are suitable are selected from polyvinyl alcohols, polyvinylpyrrolidone, polyalkylene oxides, Acrylamide, acrylic acid, Cellulose, cellulose ethers, cellulose esters, cellulose amides, polyvinyl acetates, polycarboxylic and salts, polyamino acids or -peptides, polyamides, polyacrylamide, copolymers of maleic / acrylic acids, polysaccharides, including Strength and gelatin, natural Gums like Xanthum and Carragum. More preferred polymers are selected from Polyacrylates and water-soluble Acrylate copolymers, methyl cellulose, carboxymethyl cellulose sodium, Dextrin, ethylcellulose, hydroxyethylcellulose, hydroxypropylmethylcellulose, Maltodextrin, polymethacrylates, and most preferably selected from Polyvinyl alcohols, polyvinyl alcohol copolymers and hydroxypropylmethyl cellulose (HPMC) and mixtures thereof. Preferably, the concentration of polymer in the bag material, for example a PVA polymer, at least 60%.

It can also mixtures of polymers are used. This can, depending on Application and the required requirements, especially in the Regulation of the mechanical and / or solution properties of the chamber or bag cheap be. For example, it may be preferred that a mixture of Polymer is present in the material of the chamber, wherein a polymer material a higher one Water has as another polymer material and / or a polymer material a higher one has mechanical strength as another polymer material. It may be preferred that a mixture of polymers with different average molecular weights (weight average) used is, for example, a mixture of PVA or a copolymer thereof with a weight average molecular weight of 10,000-40,000, preferably about 20,000, and of PVA or a copolymer thereof having an average molecular weight Weight average) of about 100,000 to 300,000, preferably about 150,000.

Also useful For example, polymeric blend compositions are, for example, comprising hydrolytic degradable and water-soluble Polymer blend such as polylactide and polyvinyl alcohol, achieved by Mixing of polylactide and polyvinyl alcohol, typically comprising 1-35 wt% polylactide and about from 65% to 99% by weight of polyvinyl alcohol if the material water-dispersible or water-soluble should be. It may be preferred that the existing in the film PVA to 60-98%, preferably 80% to 90%, is hydrolyzed to the resolution to improve the material.

At the Most preferred bag materials are PVA films, known as the trade name Monosol M8630, as by Chris-Craft Industrial Products, Gary, Indiana, USA, and PVA films with corresponding solubility and ductility properties. Others on the subject Useful films include films sold under the trade name PT film, or the K series of films by Aicello available or VF-HP film available from Kuraray.

The present water-soluble Foil may have other accessory ingredients than the polymer or polymer material include. For example, it may be advantageous to use plasticizers, z. Glycerol, ethylene glycol, diethylene glycol, propylene glycol, Sorbitol and mixtures thereof, additional Add water, decomposers. It may be useful for the bag or the water-soluble Foil itself a dispensed into the wash water detergent additive includes, for example, organic polymeric soil release agents, Dispersant, dye transfer inhibitor.

Method of manufacture the surfactant premix

A tertiary amine is oxidized with an aqueous solution of hydrogen peroxide in the presence of a solvent selected from 1,4-cyclohexanedimethanol, 1,6-hexanediol, 1,7-heptanediol and mixtures thereof. A preferred solvent for use in this process is 1,4-cyclohexanedimethanol. Tertiary amines useful in the process of the invention may be those described in US-A-5,130,488, column 2, lines 29 to 51. The aqueous solution of hydrogen peroxide should be as concentrated as possible to give a final product with minimal water content, but safety should be considered when choosing the concentration of the solution. The hydrogen peroxide Solutions for use herein would have a concentration of at least 30% by weight, preferably at least 40% by weight. The tertiary amine and hydrogen peroxide are preferably in a molar ratio of from about 1: 1 to about 2: 1, preferably from about 1: 1.1 to about 1: 1.3.

The solvent can while the entire reaction be present. However, it is generally preferred to ensure a minimization of the amount of solvent used, by initiating the reaction in the absence of the solvent and then while the course of the reaction gradually only added as needed to the reaction mixture liquid and stir. Preferably, the viscosity should the mixture is below 30,000 mPa.s, more preferably below 10,000 mPa.s and even more preferably kept below 1000 mPa.s, as under Process conditions measured. The measurement can be process-coupled or by taking a sample of the appropriate mixture and Measuring the viscosity at reaction temperature and at a shear rate, the the stirring conditions of the method, for example using a Contraves rheometer with parallel plate of 40 mm diameter.

The Surfactant premix can be beneficial in a wide range of Detergent products are used, including products for manual and automatic dishwashing, shampoos, laundry products and hard surface cleaning products. The premix can be efficient in anhydrous liquid products can be used, or alternatively it can simply be dried and converted into powder for use in solid products. The surfactant premix is easy to process (due to the low Viscosity), and their compatibility with most of the detergent ingredients allowed great flexibility in the Formulation.

alternative For example, the surfactant premix of the invention may be prepared by mixing an aqueous solution of amine oxide with a solvent, selected from 1,4-cyclohexanedimethanol, 1,6-hexanediol, 1,7-heptanediol and mixtures thereof, preferably 1,4-cyclohexanedimethanol, followed by removal of water from this mixture. Water can be removed by drying, for example spray drying or evaporation.

Examples

In the examples used abbreviations

In the examples have the abbreviated ones Constituent identifiers the following

meanings:

• carbonate:

  sodium

  STPP:

  sodium tripolyphosphate

  Silicate:

  Amorphous sodium silicate (SiO ₂ : Na ₂ O = 2: 1 to 4: 1)

  Alcosperse 240:

  Sulfonated polymer, available from Alco Chemical, 40-45% solids

  PCO:

  Sodium percarbonate of the nominal formula 2Na ₂ CO ₃ · 3H ₂ O ₂

  TAED:

  tetraacetylethylenediamine

  amylase:

  α-amylase, available from Novo Nordisk A / S

  protease:

  Protease, available from Novo Nordisk A / S

  SLF 18:

  low foaming Surfactant, available from BASF

  LF404:

  low foaming Surfactant, available from BASF

  C ₁₄ AO:

  tetradecyl

  C ₁₆ AO:

  hexadecyl

  CHDM:

  1,4-cyclohexanedimethanol

In The following examples give all amounts in grams.

Examples 1 to 6

The compositions of Examples 1 to 5 are comparative examples, the composition of Example 6 is according to the invention. The compositions of Examples 1 to 6 are prepared in the form of PVA bicameral bags. The first chamber contains a solid composition and the second chamber contains a liquid composition. The bag material is made from a Monosol M8630 film as available from Chris-Craft Industrial Products. The liquid composition is made by adding the amine oxide / solvent masterbatch to additional solvent, followed by the addition of the remaining ingredients. The amine oxide / solvent (either 1,4-cyclohexanedimethanol or dipropylene glycol) are in a weight ratio of 3.35: 1, in the premix.

Claims (13)

A detergent product in the form of a powder / liquid two-chamber bag, the liquid chamber comprising a detergent composition in the form of a liquid containing less than 10% by weight of the detergent composition of free water comprising a premix of an amine oxide surfactant and a solvent therefor is selected from C ₃ to C ₁₀ alkylene and polyalkylene diols and mixtures thereof, and comprises a suds suppressor, and wherein the powder composition comprises a cleaning bleach and suds suppressor. A detergent product according to claim 1, wherein the amine oxide surfactant has the following formula:

wherein R _{1 is selected} from alkyl, hydroxyalkyl, acylamidopropyl and alkylphenyl groups having on average at least 12 carbon atoms in the alkyl moiety; and R 2 and R 3 are independently selected from C _1-3 alkyl and / or C _2-3 hydroxyalkyl groups and polyethylene oxide groups having from 1 to 3, preferably 1, ethylene oxide units. The detergent product of claim 2 wherein the R ₁ alkyl moiety of the amine oxide contains an average of from 13 to 17 carbon atoms. A detergent product according to claim 3, wherein the Amine oxide from tetradecyldimethylamine oxide, hexadecyldimethylamine oxide and mixtures thereof is. A detergent product according to any one of claims 1 to 4, wherein the solvent is a cyclic or non-cyclic C ₅ to C ₁₀ diol, preferably selected from 1,4-cyclohexanedimethanol, 1,6-hexanediol, 1,7-heptanediol and mixtures thereof is. A detergent product according to any one of claims 1 to 4, wherein the solvent is a C ₃ or C ₄ alkylene or polyalkylene diol, preferably dipropylene glycol. Surfactant premix for use in manufacture the detergent composition according to claim 5 is suitable, the surfactant premix being an amine oxide surfactant and a solvent, from 1,4-cyclohexanedimethanol, 1,6-hexanediol, 1,7-heptanediol and mixtures thereof is included. The surfactant premix of claim 7, wherein the amine oxide surfactant and the solvent for in a weight ratio from 5: 1 to 1: 2. Process for preparing the surfactant premix according to Claim 7 or 8, comprising the step of reacting a tertiary amine with an aqueous solution of hydrogen peroxide in the presence of solvent for the resulting Amine oxide. The method of claim 9, wherein the concentration the aqueous solution of hydrogen peroxide is at least 40% by weight. Process according to claim 9 or 10, wherein the tertiary amine and the hydrogen peroxide is present in a molar ratio of 1: 1 to 2: 1. Method according to one of claims 9 to 11, wherein the concentration on solvent is adjusted so that the reaction mixture has a viscosity of less than 30,000 mPa s as measured under process conditions. Process for preparing the surfactant premix according to Claim 7 or 8, comprising the steps: a) mixing one aqueous solution of amine oxide with a solvent for this; and b) removing the water from the resulting mixture.