DE60031309T2 - CLEANING SUPPLIES - Google Patents

Abstract

A hard-surface cleaning composition for removing cooked-, baked-, or burnt-on food soil from cookware and tableware, the composition being in sprayable form and comprising an organic solvent system having a volatile organic content above 1 mm Hg of less than about 50% and an odor masking perfume or perfume base, said perfume or perfume base comprising at least about 20% by weight thereof of non-volatile perfume materials having a boiling point above 250°C at 1 atmosphere pressure. The composition can be used as pretreatment prior to the dishwashing process. The composition provides excellent removal of polymerised grease from metal and glass substrates and has a very pleasant odor.

Description

TECHNICAL TERRITORY

The The present invention relates to the field of dishwashing, in particular it concerns dishwashing processes, for the removal of cooked, baked and burned Dirt of cookware and dinnerware are suitable.

BACKGROUND THE INVENTION

In cooked, baked and burnt soils are among the most difficult of surfaces to be removed soiling. Traditionally, the removal requires of cooked, baked and burnt soils Cookware and dinnerware, soaking the soiled items a mechanical action. Obviously, the automatic offers dishwashing alone no satisfactory removal of cooked, baked and burned soils. Manual dishwashing require tremendous scouring efforts for removing cooked, baked and burnt-on soils, and this can be for be damaging the safety and condition of the cookware / dinnerware.

The Use of solvent-containing Cleaning compositions to assist in the removal of cooked, Baked and burnt solids are known in the art. For example, US-A-5,102,573 provides a method for treating hard Surfaces, those with cooked, baked or dried food leftovers contaminated, comprising applying a stain pretreatment composition on the soiled article. The applied composition includes surfactant, builder, amine and solvent. US-A-5,929,007 offers a watery Cleaning composition for hard surfaces to remove hardened dried or baked fatty soil deposits. The composition includes nonionic surfactant, complexing agent, alkali, a glycol ether solvent system, organic amine and anti-redeposition agent. WO-A-94/28108 an aqueous cleaning concentrate composition, the diluted can be used to form a more viscous use solution, which is one of the Thickening effective amount of a rod micelle thickener composition, Niederalkylglycoletherlösungsmittel and hardness ion complexing agents includes. The application also describes a method of purification a food preparation unit comprising at least one substantially vertical surface having a baked layer of food soil. Indeed However, none of the prior art has been very effective in the removal of baked, polymerized dirt from Metal or other substrates proved.

The Use of solvents in the context of automatic dishwashing is also known. JP-A-10,017,900 discloses a machine dishwashing auxiliary composition, the non-ionic low-foaming Surfactant, organic solvent and water includes. The composition provides cleaning benefits and drying. JP-A-11,117,000 discloses a cleaning aid composition for automatic Dishwashers, comprising surfactant, organic high molecular weight polyelectrolyte, water soluble solvent and water. The claimed auxiliary composition helps with the Cleaning of stubborn Dirt, like that due to oil or lipstick.

It there is still a need for a process and products, the improved effectiveness in the removal of cooked, baked and burnt soiling of cookware and Eating utensils using an automatic dishwasher and avoid the use of a pretreatment step.

SUMMARY THE INVENTION

According to a first aspect of the present invention, there is provided a method of removing cooked, baked or burnt food soils (such as fat, meat, dairy products, fruits, noodles and any other food that is particularly difficult to remove after cooking) of cookware and dinnerware ( including stainless steel, glass, plastic, wood and ceramic objects). The method involves washing the cookware / dinnerware in an automatic dishwashing machine in the presence of an organic solvent system (comprising a single solvent compound or a mixture of solvent compounds) having a VOC content with a vapor pressure above 13.32 Pa at 25 ° C and atmospheric pressure of less than 50% by weight, preferably less than 20% by weight, and more preferably less than 10% by weight of the Lö sungsmittelsystems. The content of volatile organic compounds of the solvent system is defined herein as the content of organic components in the solvent system having a vapor pressure above the prescribed limit at 25 ° C and atmospheric pressure.

The Concentration of the solvent in the wash liquor is from 100 ppm to 10000 ppm, preferably from 200 to 8000 and more preferably from 500 to 5000 ppm.

Of the Washing process herein is preferably at low surface tension the wash liquor performed, which together with the defined solvent concentrations from the point of view of providing optimum cleaning performance of cooked, baked and burnt soils is useful. Preferably the surface tension the wash liquor is less than about 35 mN / m, preferably less as about 32 mN / m more preferably less than about 30 mN / m and especially less as about 28 mN / m.

The organic solvent system is preferably in combination with a surfactant, in particular a low-foaming nonionic surfactant, and a cleaning builder. Consequently represents another embodiment The invention relates to a method for removing boiled, baked or burned food dirt from cookware and dinnerware ready, including washing the cookware / dinnerware in an automatic dishwasher in the presence of surfactant, cleaning builder and an organic Solvent system wherein the surfactant has a concentration in the wash liquor of 10 to 1000, preferably from 100 to 600 ppm, the Reinigungsbuilder a concentration in the wash liquor of 100 to 5000, preferably from 1000 to 3000 ppm and the organic solvent system a concentration in the wash liquor of 100 to 10,000 ppm, preferably from 200 to 8000 ppm, and more preferably from 500 to 5000 ppm. The pH of the wash liquor is generally in the alkaline range, preferably at least 10.5 or more preferably at least 11.0, this being pH by means of one or more alkalinity sources in one or more Compositions suitable for Release of solvent, Surfactant and builder can be used.

The Methods of the invention can with a dedicated organic solvent composition carried out but from a preferred point of view the invention contemplates the use of several compositions, including at least an organic solvent composition. The compositions can in the same or different cycles of the automatic dishwasher be delivered. The soiled cookware / dinnerware will in the resulting solvent-containing Washing liquor washed.

Consequently can according to one another aspect of the invention, the removal of boiled, baked or burnt food dirt from cookware and eating utensils by the use of one or more orgasmic African Solvent compositions (which means "solvent composition") should that they are the organic solvent system and optional additional active ingredients and diluents and one or more machine dishwashing detergent compositions. The organic solvent composition can to be built-up, builder-free or general builder-free, if however, as an additive composition together with a dishwashing composition is used is the solvent composition normally relatively builder-free compared to the detergent composition. With "relative Builder free "is meant that under normal conditions of use, the solvent composition a small proportion (less than 50 wt .-%, preferably less as 25% by weight, more preferably less than 10% by weight) of the total A builder derived from the one or more solvent compositions and the one or more detergent compositions into the wash liquor is provided. With "general Builder free "is meant that the composition is less than about 5% by weight Cleaning Builder contains.

According to the various embodiments of the present invention, the solvent compositions and machine dishwashing detergent compositions may be dispensed either at the same or at different stages of the dishwashing cycle, for example: i) solvent composition and machine dishwashing detergent composition are independently dispensed into the prewash cycle and the main wash cycle; ii) a solvent composition and a first machine dishwashing detergent composition are dispensed into the prewash cycle and a second machine dishwashing detergent composition in the main wash cycle; iii) a first solvent composition and a first machine dishwashing detergent composition are added to the prewash cycle and a second solvent composition and a second machine dishwashing detergent released into the main wash cycle; iv) a solvent composition and a machine dishwashing detergent composition are dispensed simultaneously into the main wash cycle; and v) a solvent composition and a machine dishwashing detergent composition are dispensed into the pre-wash and main wash cycles.

A other embodiment offers a method for removing boiled, baked or burned food dirt from cookware and dinnerware, comprising washing the cookware / dinnerware in the prewash cycle an automatic dishwasher in the presence of an organic solvent composition and subsequent do the washing up of the cookware / dinnerware in the rinse cycle of the automatic dishwashing machine in the presence of a machine dishwashing rinse composition.

In preferred embodiments become the organic solvent composition and the machine dishwashing detergent composition either i) from separate storage means (eg different Bottles in case of liquid Compositions, different bags, etc.) into the same Cycle of an automatic dishwasher delivered. Preferably represents the organic solvent composition a concentration of organic solvent in the wash liquor as prescribed herein, and preferably in the range of about 100 to approximately 10,000 ppm, preferably from about 500 to about 5,000 ready; or ii) from separate areas of a storage facility with several areas (eg multi-chambered bottles in the case of liquid compositions) in the same or different cycles of an automatic dishwashing machine. Suitably, the organic solvent composition and the machine dishwashing detergent composition from separate areas of a storage with several Areas in a feed ratio (solvent composition: Detergent composition) in the range of about 5: 1 to about 1:50, preferably about 2: 1 to about 1: 6 and more preferably about 1: 1 to about 1: 5 delivered to a concentration of organic solvent in the wash liquor, preferably in the range of about 100 to approximately 10000, more preferably about 500 to about To provide 5000 ppm. Alternatively, the organic solvent composition and the machine dishwashing detergent composition from separate areas of a storage with several One after the other in the prewash cycle and the main wash cycle issued. This may be useful in case of product incompatibility to interact between the organic solvent composition and the machine dishwashing detergent composition to reduce. When the organic solvent composition and the machine dishwashing detergent composition at the same time from separate areas of a storage means with multiple areas is the physical form the organic solvent composition and / or the machine dishwashing detergent composition preferably such that an intimate mixture of the compositions before their Contact with the wash liquor is avoided.

The Invention can also be reduced to the practice of using multi-phase, all-in-one products become. According to one another embodiment The invention thus provides a method for removing boiled, baked or burnt food dirt from cookware and dinnerware, comprising dispensing separate parts a multiphase detergent composition in the same or different cycles of an automatic dishwashing machine, wherein the multiphase detergent composition is at least a first phase that is an organic solvent composition contains and at least a second phase comprising a machine dishwashing detergent composition contains includes. The multi-phase detergent composition could be used for Example the form of a multilayer liquid (eg coacervate) or a multilayer gel containing in a bottle or a multi-phase tablet containing the solvent composition contains in the form of a gel, that within a preformed cavity or a preformed one Depression inside the main body the tablet is included. In any case, the salary should be the solvent, which is submitted to the washing process, so be that the benefits on boiled, baked or burnt food soils to be provided.

The The present invention also contemplates the use of multiple organic compounds Solvent compositions in front.

In another embodiment The invention may include the organic solvent composition in a unit dosage form, which is the controlled release (for example, delayed, sustainable, activated or slow release) of the composition during one or several repeated wash cycles. In preferred unit dosage forms is the solvent composition contained in a single or multi-compartment bag.

Preferably include organic solvent compositions for this purpose Use an organoamine solvent or another agent that is effective in removing the dirt, and have a liquid surface tension of less than 24.5 mN / m, preferably less than 24 mN / m, more preferably less than 23.5 mN / m.

In preferred embodiments includes the organic solvent composition additionally a dissemination tool. The function of the dissemination tool is the interfacial tension between the organic solvent and reduce the dirt, eliminating the wettability of soiling by organic solvents elevated becomes. If the dissemination aid to the compositions are added, which contain the organic solvents, the are effective in removing the dirt, it leads to a reduction the surface tension the compositions, preferred dissemination aids are included those that have the surface tension lower than that of the tool itself. Particularly suitable Dissemination aids that are able to produce a surface tension below 30 mN / m, preferably below 28 mN / m, and more preferably below 26 mN / m and in particular below 24 mN / m. surface tensions become 25 ° C herein measured. Dissemination tools for use in this regard may be issued organic solvents, Wetting agents and mixtures thereof may be selected.

The Invention can also for multi-phase, all-in-one products become. According to this Aspect comprises a method of removing boiled, baked or burnt food dirt from cookware and eating utensils washing the cookware / eating utensils in one automatic dishwasher with a machine dishwashing detergent composition, the surfactant (preferably low foaming nonionic surfactant includes), detergency builder and organic solvent system in sufficient Concentrations includes a concentration in the wash liquor from 10 ppm to 1000 ppm surfactant, from 100 ppm to 5000 ppm detergency builder and 100 ppm to 10,000, preferably from 500 ppm to 5000 ppm organic solvent provide.

In The process of the invention may include the organic solvent composition in the form of a liquid, a paste, a cream or a gel and optionally encapsulated, packaged in a single or multi-chamber bag or on a porous one support material be absorbed. The solvent composition can be watery but is preferably anhydrous. Preferred bags for related Use are bags of water-soluble, solvent-resistant, partially hydrolyzed PVA.

The optimal organic solvent systems for this purpose Uses are due to extremely low liquid surface tensions and contact angles on polymerized, grease-coated substrates characterized. moreover They generally consist of mixed solvent systems, which have a have synergistic contact angle and low surface tension. The organic solvent system herein preferably has a liquid surface tension at 25 ° C of less than 27 mN / m, preferably less than 25 mN / m. Suitable for the The present invention is an organic solvent system comprising several Solvent components in such concentrations include that the solvent system has a surface tension less than, and preferably less than, at least 1 mN / m each of the individual solvent components having. With regard to the contact angle, compositions the the solvent system contain, preferably a progressive contact angle a polymerized, grease-coated substrate at 25 ° C of less as 20 °, preferably less than 10 ° and more preferably less than 5 °. Furthermore should the progressive contact angle for compositions on the Base of mixed solvent systems smaller than that of any of the corresponding compositions, which comprise the individual components of the solvent system. Such Solvent systems and compositions show that they are responsible for removing burnt-on soils with a high carbon content of cookware and dinnerware are optimal.

The method for determining the contact angle is as follows. A sample plate (prepared as described below) is dipped in and withdrawn from a liquid, and contact angles are determined by the Wilhelmy method. The force exerted on the sample according to the immersion depth is measured (with a Kruss K12 Tensiometer and System K121 software) and is proportional to the contact angle of the liquid on the solid surface. The sample plate is prepared as follows: Spray 30-50 grams of rapeseed oil into a beaker. Immerse a glass plate (3 × 9 × 0.1 cm) in the oil and coat the surface carefully. This leads to a uniformly dispersed oil layer on the surface. Adjust the weight of the product on the surface of the glass slide until transferred to about 0.5 g and evenly distributed. At this point you burn the glass slides 232 ° C (450 ° F) for 20 minutes and allow to cool to room temperature.

One wide range of organic solvents is to the relevant Use, preferably the organic solvent however, from alcohols, amines, esters, glycol ethers, glycols, terpenes and mixtures thereof. The organic solvent system contains to less than 50%, preferably less than 20%, and more preferably less than 10% solvent components with a vapor pressure over 13.32 Pa (0.1 mmHg) at 25 ° C and atmospheric pressure. In highly preferred embodiments is the solvent essentially free (contains less than 5% by weight) of solvent ingredients with a boiling point below 150 ° C, Flash point below 100 ° C or a vapor pressure over 133 Pa (1 mmHg) at 25 ° C and atmospheric pressure.

The organic solvent system for use herein is preferably of organoamine solvents including alkanolamines, alkylamines, alkyleneamines, and mixtures thereof; alcoholic solvents including aromatic, aliphatic (preferably C ₄ -C ₁₀ ) and cycloaliphatic alcohols and mixtures thereof; Glycols and glycol derivatives including C ₂ -C ₃ (poly) alkylene glycols, glycol ethers, glycolates and mixtures thereof; and mixtures selected from organoamine solvents, alcoholic solvents, glycols and glycol derivatives. In a preferred embodiment, the organic solvent comprises organoamine (especially alkanolamine, more particularly 2-aminal alkanol) solvent and glycol ether solvent, preferably in a weight ratio of about 3: 1 to about 1: 3, wherein the glycol ether solvent is ethylene glycol monobutyl ether, diethylene glycol monobutyl ether, ethylene glycol monomethyl ether , Ethylene glycol monoethyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, propylene glycol monobutyl ether and mixtures thereof. Preferably, the glycol ether is a mixture of diethylene glycol monobutyl ether and propylene glycol butyl ether, especially in a weight ratio of 1: 2 to 2: 1.

In other preferred embodiments shut down suitable organic solvents one or more water-soluble or dispersible, preferably hydroxylated, organoamine solvents in particular alkanolamine solvent with a pKa of at least 8.8, preferably at least 9.3 and more preferably at least 9.8. In these embodiments, the organic comprises Solvent system preferably a mixture of a first organoamine solvent with a pKa of about 9.5 or less and a second organoamine solvent with a pKa of more than about 9.5. For this purpose Preference is also given to using organic solvents which are salts of Organoamines which are at a wash liquor pH above that highest pKa of the organoamine in the washing liquor of the automatic dishwasher and thereby serve as a source of Organoaminlösungsmittel. Suitable salt counterions include Halides, such as chloride and bromide, oxyanions, such as sulphate, borate, Phosphate, pyrophosphate and polyphosphate and surfactant anions.

In a preferred embodiment includes the organic solvent one or more organoamines in the form of their ammonium salt a wash liquor pH over the highest pKa of organoamine / organoamines in washing liquid of an automatic dishwasher be introduced.

The Effect of the solvent system can be further improved by the addition of certain wetting agents become. Preferably, the organic solvent system is combined used with a wetting agent, which helps in lowering the surface tension the solvent system, preferably at least 1 mN / m less than that of the wetting agent, is effective, wherein the wetting agent is preferably made of organic Surfactant with a surface tension of less than 30 mN / m, more preferably less than 28 mN / m and specifically less than 26 mN / m is selected. Preferred wetting agents for related Use are silicone polyether copolymers, especially silicone poly (alkylene oxide) copolymers, wherein the alkylene is selected from ethylene, propylene and mixtures thereof.

• a) polaren, Wasserstoffbrücken ausbildenden Lösungsmitteln mit einem Hansen-Löslichkeitsparameter von mindestens 20 (MPa)^1/2, einem Polaritätsparameter von mindestens 7 (MPa)^1/2, vorzugsweise mindestens 12 (MPa)^1/2, und einem Wasserstoffbrücken-Parameter von mindestens 10 (MPa)^1/2
• b) polaren, Nicht-Wasserstoffbrückenbindungs-Lösungsmitteln mit einem Hansen-Löslichkeitsparameter von mindestens 20 (MPa)^1/2, einem Polaritätsparameter von mindestens 7 (MPa)^1/2, vorzugsweise mindestens 12 (MPa)^1/2 und einem Wasserstoffbrückenbindungsparameter von weniger als 10 (MPa)^1/2
• c) amphiphilen Lösungsmitteln mit einem Hansen-Löslichkeitsparameter von mindestens 20 (MPa)^1/2, einem Polaritätsparameter von mindestens 7 (MPa)^1/2 und einem Wasserstoffbrücken-Parameter von mindestens 10 (MPa)^1/2
• d) nichtpolaren Lösungsmitteln mit einem Polaritätsparameter von unter 7 (MPa)^1/2 und einem Wasserstoffbrücken-Parameter von unter 10 (MPa)^1/2 und
• e) Mischungen davon.

With regard to solvent parameters, the organic solvent may be selected from:

• a) polar, hydrogen bonding solvents having a Hansen solubility parameter of at least 20 (MPa) ^1/2 , a polarity parameter of at least 7 (MPa) ^1/2 , preferably at least 12 (MPa) ^1/2 , and a hydrogen bond parameter of at least 10 (MPa) ^1/2
• b) polar, non-hydrogen bonding solvents having a Hansen solubility parameter of at least 20 (MPa) ^1/2 , a polarity parameter of at least 7 (MPa) ^1/2 , preferably at least 12 (MPa) ^1/2 and a hydrogen bonding parameter of less as 10 (MPa) ^1/2
• c) amphiphilic solvents having a Hansen solubility parameter of at least 20 (MPa) ^1/2 , a polarity parameter of at least 7 (MPa) ^1/2 and a hydrogen bonding parameter of min at least 10 (MPa) ^1/2
• d) nonpolar solvents with a polarity parameter of less than 7 (MPa) ^1/2 and a hydrogen bond parameter of less than 10 (MPa) ^1/2 and
• e) mixtures thereof.

The Invention also relates to detergent packages and multi-component products, for use in an automatic dishwasher or dishwashing pretreatment are suitable for removal of baked and burned dirt and to provide other cleaning benefits. In one embodiment becomes a machine dishwasher package provided with two or more machine dishwashing detergents and / or auxiliary products, Storage means, the separate but related parts comprising two or more products, and means, for example electrical Pumping means for dispensing quantities of the two or more products in the same or different cycles of an automatic dishwashing machine includes. The package may also include means for controlling the relative delivery rate comprising two or more products from the storage means. The package preferably comprises an organic solvent composition and a machine dishwashing detergent composition and is used to remove boiled, baked and burnt Food dirt used by cookware and eating utensils. In a preferred embodiment are the two or more machine dishwashing or auxiliary products in rheology-matched gel form. Compositions apply as in terms of rheology, if they are under the same Shear conditions similar flow values (which differ by less than 50%, preferably less than 20%) and / or similar viscosities (which differ by less than 50%, preferably less than 20%) exhibit.

The Invention also relates to organic solvent compositions, which are suitable for use in automatic dishwashing. In a embodiment includes the organic solvent composition from 1% to 99%, preferably from 5% to 90% of an organic solvent system for removing boiled, baked or burnt food soils of cookware and dinnerware, to 0.5% to 50%, preferably to 5% to 25% bleach and to 0.0001% to 10% cleansing enzyme. The compositions are preferably in gel form and contain a thickening agent, such as methylcellulose or other nonionic Cellulosic thickener. The solvent compositions are preferably anhydrous (contain less than 5%, preferably less than 1% water) and include bleaching agents in the form of particulate Suspension with an average particle size in the range from 10 to 100 μm, preferably from 25 to 75 microns. The composition is also builder-free or generally builder-free. It is a feature of the invention that a wide range of solvents, including organoamine, in the solvent compositions of the invention with acceptable bleach stability may be, provided that the water content of the composition is carefully controlled.

The Invention also relates to organic detergent compositions, which are suitable for use in automatic dishwashing. In a embodiment comprises a machine dishwashing detergent composition at 0.05 Wt .-% to 10 wt .-% of a low-foaming nonionic surfactant, too 1 wt .-% to 30 wt .-% of an organoamine, preferably alkanolamine (especially Monoethanolamine) Solvents and at least 5% by weight of a detergency builder. Preferably is the machine dishwashing detergent composition in the form of a gel which is from 2% to 20% by weight, preferably to From 5% to 15% by weight of an alkanolamine, at least 5% by weight of detergency builder and from 0.1% to 5% by weight of a low foaming nonionic surfactant includes. Although any nonionic low foaming surfactant (or any combination nonionic surfactants and suds suppressors) can be used herein may be capped nonionic surfactants and combinations or Amine oxide and capped nonionic surfactants preferred. The compositions preferably also have a pH (1% aqueous solution) above about 9.0, preferably above about 10.5 and more preferably greater than about 11.

In an embodiment comprises a machine dishwashing detergent composition at 0.05% by weight to 10 wt .-% of a low-foaming nonionic surfactant, to 1 wt .-% to 30 wt .-% of an organic Solvent, preferably alkanolamine solvent, at least 5% by weight of a detergency builder and a wetting agent, preferably silicone poly (alkylene oxide) copolymer.

In a preferred embodiment there is provided a machine dishwashing package comprising: i) an organic solvent composition suitable for use in automatic dishwashing and containing from 1% to 99%, preferably to 5%, by weight. % to 90% by weight, especially 40% to 80% by weight, of an organic solvent removal system tem, baked or burned food soiling of cookware and dinnerware, to 0.5% to 50%, preferably to 5% to 25%, bleach, by weight, to 0.0001% by weight 10% by weight of cleansing enzyme, and wherein the composition is in the form of an anhydrous gel comprising bleach in the form of a particulate suspension; and ii) a machine dishwashing detergent composition comprising from 0.05% to 10% by weight of a low-foaming nonionic surfactant, optionally from 1% to 30% by weight of an organoamine, preferably alkanolamine, solvent and at least 5% by weight of a cleaning builder. Preferably, the machine dishwashing detergent composition is in the form of a gel containing from 2% to 20%, preferably from 5% to 15%, by weight of the composition of an alkanolamine, to at least 5% by weight. % Detergency builder (such as sodium potassium tripolyphosphate) and from 0.1% to 5% by weight of the composition comprises a low foaming nonionic surfactant.

The Compositions of the invention are also characterized that they have a low content of volatile organic compounds have, preferably a content of volatile organic compounds less than 20%, preferably less than 10%, and more preferably less than 5%.

To suitable thickening agents for use in the solvent compositions and dishwashing detergent compositions belong here viscoelastic, thixotropic thickener in concentrations of about 0.1% by weight to about 10% by weight, preferably from about 0.25% to about 5% by weight, most preferably about 0.5% by weight to about 3% by weight. Suitable thickening agents include polymers having a molecular weight of about 500,000 to about 10,000,000, more preferably about 750,000 to about 4,000,000 one. The preferred crosslinked polycarboxylate polymer is preferably a carboxyvinyl polymer. Such compounds are in U.S. Patent No. 2,798,053, issued July 2, 1957 to Brown. Methods for making carboxyvinyl polymers are in Brown also disclosed. Carboxyvinyl polymers are essentially insoluble in liquid, volatile organic hydrocarbons and dimensionally stable when they Exposed to air.

To preferred polyols which are used to prepare carboxyvinyl polymers used include polyols, selected from the class consisting of oligosaccharides, reduced derivatives thereof, in which the carbonyl group is converted to an alcohol group has been a pentaerythritol; most preferred are sucrose or pentaerythritol. It is preferred that the hydroxyl groups of the modified polyol can be etherified with alkyl groups, wherein the Polyol has at least two allyl ether groups per polyol molecule. When the polyol is sucrose, it is preferred that the sucrose at least about five allyl ether groups per sucrose molecule having. It is preferred that the polyether of the polyol be about 0.1% until about 4% of the total monomers, more preferably about 0.2% until about 2.5%.

Preferred monomeric olefinically unsaturated carboxylic acids for use in the preparation of carboxyvinyl polymers used herein include monomeric, polymerizable, alpha-beta-monoolefinically unsaturated lower aliphatic carboxylic acids; more preferred are monomeric monoolefinic acrylic acids of the structure: CHCH2 = C (R) -COOH wherein R is a substituent selected from the group consisting of hydrogen and lower alkyl groups; most preferred is acrylic acid.

Various carboxyvinyl homopolymers and copolymers New York, NY, USA are commercially available from the BF Goodrich Company under the trade name Carbopol ^®. These polymers are also known as carbomers or polyacrylic acids. Carboxyvinyl polymers useful in formulations of the present invention include Carbopol 910 having a molecular weight of about 750,000, Carbopol 941 having a molecular weight of about 1,250,000 and Carbopol 934 and 940 having a molecular weight of about 3,000,000 and 4,000,000. More preferably, the series of carbopols using ethyl acetate and cyclohexane in the production process are Carbopol 981, 2984, 980 and 1382.

preferred Polycarboxylate polymers are non-linear, water-dispersible polyacrylic acids, which are crosslinked with a polyalkenyl polyether and a molecular weight from about 750,000 to about 4,000,000.

Highly preferred examples of these polycarboxylate polymers for use in the present invention dung are Sokalan PHC-25 ^®, a polyacrylic acid available from BASF Corporation, the Carbopol resins of the 600 series, available from BF Goodrich, and more preferred is Polygel DK available from 3-V Chemical Corporation. Blends of polycarboxylate polymers as described herein can also be used in the present invention.

Other suitable thickening agents include inorganic clays (eg Laponite, aluminum silicate, bentonite, fumed silica). The preferred clay thickener may be natural or synthetic Be of origin. Preferred synthetic clays include synthetic smectite clay, under the trademark Laponite of Southern Clay Products, Inc. is sold. Particularly suitable are gel-forming varieties such as Laponite RD and solbildende varieties such as Laponite RDS. Naturally Close the occurring clays some smectite and attapulgite clays. Mixtures of clays and polymeric thickeners are related thereto Use also suitable.

Other types of thickening agents which may be used in this composition include natural gums such as xanthan gum, locust bean gum, guar gum and the like. The cellulosic thickeners: hydroxyethyl and hydroxymethyl cellulose (ETHOCEL and METHOCEL ^®, available from Dow Chemical) can also be used.

It It is a feature of the invention that many of the solvent systems and compositions the invention for the cleaning are optimal, also improved compatibility with partially hydrolyzed PVA bag materials of known construction and type show. This is especially surprising since many are well known polar / or hydrolyzed binder solvent materials (For example, the ethanolamines) in itself a low compatibility with PVA materials and pose serious problems for product stability. Solvent systems, the mixtures of polar solvents with hydrogen bonding (such as organoamines) with a co-solvent selected from polar non-hydrogen bonding, amphiphilic and nonpolar solvents, and mixtures thereof are particular in this regard useful. Also useful for improved PVA compatibility are organoamines that are in the form of amine salt in the composition available. Also useful for improved PVA compatibility are solvent system and propanolamine-based ingredients such as 2-amino-2-methylpropanol. compositions which are suitable for inclusion in bags usually include a big Proportion of solvent system components, preferably at least 50% by weight, more preferably at least 70% by weight or even higher.

Finally will also the use of an organic solvent system in one automatic dishwasher for removing boiled, baked and burnt food soils of cookware and dinnerware revealed.

DETAILED DESCRIPTION OF THE INVENTION

The The present invention also contemplates the use of solvent compositions as additives for conventional Automatic dishwashing detergent compositions in front. It also provides multi-component dishwashing products which are a dedicated one Combination of solvent compositions and dishwashing detergent compositions contain. The invention also contemplates so-called "all-in-one" detergent products having the functionality of both an alkaline detergent as well as a solvent in front. In the case of additive and multi-component products requires the Invention the two compositions not in the same physical Shape. The organic solvent composition can be in any physical form, e.g. Fluid, Paste, cream, gel, powder, granules or tablets, and similar the machine dishwashing detergent composition in each of these forms. Preferably, however, are both Compositions in the form of liquids or gels before, or the organic solvent composition lies in the form of liquid or gel and the machine dishwashing detergent composition in the form of powder, granules or tablet. The ones used herein Compositions can from any suitable device such as bottles (pump bottles, squeeze bottles), paste dispensers, Capsules, multi-chamber bottles, multi-chamber capsules, sachets and multi-chamber bags etc.

The Solvent compositions herein include one or more organic solvents and may additionally contain surfactant, Bleach, enzyme, enzyme stabilizing ingredients, thickener etc. include.

The organic solvents should be selected to be compatible with the tableware / cook and compatible with the various parts of an automatic dishwashing machine. In addition, the solvent system should be effective and safe to use, with a volatiles content of more than 133.32 Pa (1 mmHg) (and preferably above 13.33 Pa (0.1 mmHg)) of less than 50 wt. %, preferably less than 30% by weight, more preferably less than 10% by weight of the solvent system. They should also have a very mild, pleasant smell. The individual organic solvents used herein generally have a boiling point above about 150 ° C, a flash point above 100 ° C and a vapor pressure below 133.32 Pa (1 mmHg), preferably below 13.33 Pa (0.1 mmHg) at 25 ° C and atmospheric pressure.

Solvent, which can be used herein include: i) alcohols, such as benzyl alcohol, 1,4-cyclohexanedimethanol, 2-ethyl-1-hexanol, furfuryl alcohol, 1,2-hexanediol and the like Materials; ii) amines, such as alkanolamines (eg, primary alkanolamines: Monoethanolamine, monoisopropanolamine, diethylethanolamine, ethyldiethanolamine, beta-aminoalkanols, secondary Alkanolamines: diethanolamine, diisopropanolamine, 2- (methylamino) ethanol, ternary Alkanolamines: triethanolamine, triisopropanolamine), alkylamines (e.g. B. primary Alkylamines: monomethylamine, monoethylamine, monopropylamine, monobutylamine, Monopentylamine, cyclohexylamine), secondary alkylamines: (dimethylamine), Alkyleneamines (primary Alkyleneamines: ethylenediamine, propylenediamine) and other similar Materials; iii) esters, such as ethyl lactate, methyl ester, ethyl acetoacetate, ethylene glycol monobutyl ether acetate, Diethylene glycol monoethyl ether acetate, diethylene glycol monobutyl ether acetate and other similar ones Materials; iv) glycol ethers, such as ethylene glycol monobutyl ether, diethylene glycol monobutyl ether, Ethylene glycol monoethyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, propylene glycol butyl ether and other similar ones Materials; v) glycols such as propylene glycol, diethylene glycol, hexylene glycol (2-methyl-2,4-pentanediol), triethylene glycol, composition and Dipropylene glycol and other similar Materials; and mixtures thereof.

preferred Solvent, to the relevant Use in removing boiled, baked or burnt Food contaminants include alkanolamines, especially monoethanolamine, beta-aminoalkanols, especially 2-amino-2-methylpropanol (since it is the having lowest molecular weight of any beta-aminoalkanol, in which the amine group is bonded to a tertiary carbon, thereby reducing the reactivity the amine group is minimized) and mixtures thereof.

The Detergent and cleaning compositions herein can be conventional Active ingredients include and may include organic solvents with a cleaning function and organic solvents with a carrier or Diluent function or another specialized function. The compositions are generally calcareous and comprise one or more effective detergent ingredients, dyes, bleaches, surfactants, alkalinity sources, Enzymes, thickening agents (in the case of liquid, paste, cream, or gel compositions), corrosion inhibitors (eg sodium silicate), hydrotropic compounds (eg sodium cumulosulfate) and explosive and binders (in the case of powders, granules or tablets) selected could be. Highly preferred detergent ingredients include a builder compound, an alkalinity source, a surfactant, an enzyme and a bleach.

Provided not stated otherwise the ingredients described below either in the organic Solvent compositions and / or the detergent or cleaning compositions become.

surfactant

In the methods of the present invention for use in automatic dishwashing, the detersive surfactant, preferably by itself or in combination with other ingredients (ie suds suppressors), is low foaming. In the compositions and methods of the present invention for use in hard surface cleaning or pretreatment prior to dishwashing, the detersive surfactant is preferably foamable by direct application but low foaming when used in automatic dishwashing. Surfactants suitable for this purpose 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-4,228,042, US-A-4,239,660 and US-A-4,260,529) and mono C ₆ -C ₁₆ -N-alkyl or alkenyl ammonium surfactants wherein the remaining N positions are methyl, hydroxyethyl or hydroxypropyl groups are substituted; low and high turbidity nonionic surfactants and mixtures thereof containing nonionic alkoxylated surfactants (especially ethoxylates derived from C ₆ -C ₁₈ primary alcohols) include, ethoxylated-propoxylated alcohols (for example, Poly-Tergent ^® SLF18 from Olin Corporation), epoxy-capped poly (oxyalkylated) alcohols (for example, Poly-Tergent ^® SLF18B of Olin Corporation - see WO-A-94/22800), poly ether-capped ( oxyalkylated) alcohol surfactants, and block polyoxyethylene-polyoxypropylene polymeric compounds, such as PLURONIC ^®, REVERSED PLURONIC ^® and TETRONIC ^® from BASF-Wyandotte Corp., Wyandotte, Michigan; amphoteric surfactants such as the C ₁₂ -C ₂₀ alkyl amine oxides (preferably amine oxides used herein include lauryldimethyl amine oxide and hexadecyldimethyl amine oxide) and alkyl amphocarboxylic surfactants such as Miranol ^™ C2M; and zwitterionic surfactants such as 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. Surfactants preferred 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 suitable builders for use herein include water-soluble builders such as citrates, Carbonates and polyphosphates, eg. Sodium tripolyphosphate and sodium tripolyphosphate hexahydrate, Potassium tripolyphosphate and mixed sodium and potassium tripolyphosphate salts; and partially water-soluble or insoluble builders, such as crystalline layered silicates (EP-A-0164514 and EP-A-0293640) and aluminosilicates inclusive Zeolites A, B, P, X, HS and MAP. The builder is usually in a concentration of about 1% by weight to about 80 wt%, preferably from about 10 wt% to about 70 wt%, most preferably about 20% by weight to about 60% by weight of the composition is present.

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 Storage stability Compositions containing less than about 22%, preferably less than about 15% of the total silicate (amorphous and crystalline) are highly preferred.

enzyme

Enzymes useful 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; Proteases such as Esperase ^®, Alcalase ^®, Durazym ^® and Savinase ^® (Novo) and Maxatase ^®, Maxacal ^®, Properase ^®, and Maxapem ^® (Gist-Brocades); and α- and β-amylases such as Purafect Ox Am ^® (Genencor) and Termamyl ^®, Ban ^®, Fungamyl ^®, Duramyl ^® and Natalase ^® (Novo); and mixtures thereof. Enzymes are preferably added herein as prilled granules, granules or cogranules, typically in concentrations ranging from about 0.0001% to about 2% by weight of the pure enzyme composition.

bleach

Bleaching agents suitable herein include chlorine and oxygen bleaches, especially inorganic perhydrate salts such as sodium perborate mono- and tetrahydrate, and sodium percarbonate optionally coated to provide a controlled rate of release (see, for example, GB-A-1466799 on sulfate / carbonate coatings) preformed organic Peroxyacids and mixtures thereof with precursors of organic peroxyacid bleaches 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 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 (NOBS); 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 usually even in concentrations in the range of 0.5 wt .-% to 25 wt .-%, more before from 1 wt .-% to 10 wt .-% of the composition are included. Suitable bleach catalysts for use herein include manganese triazacyc-ionone 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).

nonionic Surfactants and suds suppressors

Suitable suds suppressors for use herein include low cloud point nonionic surfactants. "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 even more preferably less than about 10 ° C, and most preferably less defined as 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, these nonionic surfactants low cloud point also include, for example, ethoxylated-propoxylated alcohol (eg., Olin Corporation's poly-Tergent ^® SLF18) and epoxy-capped poly (oxyalkylated) alcohols (eg., Olin Corporation's poly-Tergent ^® SLF18B series of non-ionic compounds such as 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 R¹ 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 ^{1 is} other than C ₂ to C ₃ alkylene; 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.

Other ingredients useful herein include organic polymers having dispersant, redeposition, soil release or other cleaning properties of the invention in concentrations of from about 0.1% to about 30% by weight, preferably from about 0.5% to about about 15% by weight, most preferably from about 1% to about 10% by weight of the composition. Preferred anti-redeposition polymers herein include acrylic acid-containing 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 CPS and acrylic / methacrylic Copolymers. Preferred soil release polymers herein include Al alkyl and hydroxyalkyl celluloses (US-A-4,000,093), polyoxyethylenes, polyoxypropylenes and copolymers thereof and nonionic and anionic polymers based on terephthalate esters of ethylene glycol, propylene glycol and mixtures thereof.

Heavy metal sequestrants and crystallization retarder are to the relevant Use generally 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 wt%, and most preferably about 0.5 wt% to about 5 wt% the composition suitable, for example diethylenetriaminepenta (methylenephosphonate), Ethylenediaminetetra (methylenephosphonate), hexamethylenediamine-tetra (methylenephosphonate), Ethylene diphosphonate, hydroxyethylene-1,1-diphosphonate, nitrilotriacetate, ethylenediaminetetraacetate, Ethylenediamine-N, N'-disuccinate in their salt and free acid forms.

The Compositions herein can be used a corrosion inhibitor, such as organic silver coating agents in amounts of about 0.05% by weight 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 Wintershall, Salzbergen, Germany), nitrogen-containing corrosion inhibitor compounds (for Example benzotriazole and benzimidazole - 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.

Other Suitable ingredients herein include colorants, water-soluble bismuth compounds such as bismuth acetate and bismuth citrate in concentrations of approximately 0.01% until about 5%, enzyme stabilizers such as calcium ions, boric acid, propylene glycol and chlorine bleach scavenger in Amounts of about 0.01% until 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 brighteners, fragrances, fillers and clay.

Liquid detergent compositions can Water and other volatile Solvent as a carrier contain. Low levels of low molecular weight primary or secondary Alcohols, such as methanol, ethanol, propanol and isopropanol, can be used in the liquid Detergents of the present invention can be used. Other suitable carrier solvents, used in low amounts include glycerine, propylene glycol, Ethylene glycol, 1,2-propanediol, sorbitol and mixtures thereof.

Examples Abbreviations used in the examples

Carbonat:

Wasserfreies Natriumcarbonat

STPP:

Natriumtripolyphosphat

SKTP:

Natriumkaliumtripolyphosphat

Silicat 3,2:

Amorphes Natriumsilicat (SiO₂:Na₂O-Verhältnis = 3:2)

Silicat:

Amorphes Natriumsilicat (SiO₂:Na₂O-Verhältnis = 2,0)

SKS-6:

Kristallines Schichtsilicat der Formel δ-Na₂Si₂O₅

KOH:

Kaliumhydroxid

H2SO4:

Schwefelsäure

HEDP:

Ethan-1-hydroxy-1,1-diphosphonsäure

PB1:

Natriumperboratmonohydrat, durchschnittliche Teilchengröße 770 μm

PB1-50:

Natriumperboratmonohydrat, durchschnittliche Teilchengröße 50 μm

Termamyl:

α-Amylase, erhältlich von Novo Nordisk A/S

FN3:

Protease, erhältlich von Genencor

Savinase:

Protease, erhältlich von Novo Nordisk A/S

LF404:

schwach schäumendes Tensid von der Olin Corporation

SLF18:

schwach schäumendes Tensid von der Olin Corporation

ACNI:

Alkylverkapptes nichtionisches Tensid der Formel C_9/11 H_19/23 EO₈-Cyclohexylacetal

C₁₆AO:

Hexadecyldimethylaminoxid

PA30:

Polyacrylathomopolymer mit einem Molekulargewicht von ungefähr 8.000, erhältlich von BASF

Proxel GXL:

Konservierungsstoff (1,2-Benzisothiazolin-3-on), erhältlich von Zeneca, Inc.

Polygel-Vormischung:

5% Wirkstoff Polygel DKP in Wasser, erhältlich von 3 V Inc.

CaCl2:

Calciumchlorid

CHDM:

Cyclohexandimethanol

BTA:

Benzotriazol

Winog:

Paraffinöl, vertrieben durch Wintershall.

Vivapur:

Mikrokristalline Cellulose mit einer durchschnittlichen Teilchengröße von 0,18 mm

Triacetat:

Natriumacetattrihydrat

Duramyl:

α-Amylase, erhältlich von Novo Nordisk A/S

Citrat:

Trikaliumcitratmonohydrat

Citronensäure:

Wasserfreie Citronensäure

Hydrogencarbonat:

Natriumhydrogencarbonat

PEG 400:

Polyethylenglycol, Molekulargewicht etwa 400, erhältlich von Hoechst

PEG 4000:

Polyethylenglycol, Molekulargewicht etwa 4000, erhältlich von Hoechst

PVPVI:

Polyvinylpyrrolidon-Vinylimidazol-Copolymer, Molekulargewicht ungefähr 15.000, erhältlich von BASF

MEA:

Monoethanolamin

MAE:

2-(Methylamino)ethanol

SF1488:

Polydimethylsiloxancopolymer

Dowanol

PNB: Propylenglycolbutylether

Silwet L7600:

Siloxantensid, erhältlich von Witco

In the examples, the abbreviated component names have the following meanings:

carbonate:

Anhydrous sodium carbonate

STPP:

sodium tripolyphosphate

SKTP:

Natriumkaliumtripolyphosphat

Silicate 3.2:

Amorphous sodium silicate (SiO ₂ : Na ₂ O ratio = 3: 2)

Silicate:

Amorphous sodium silicate (SiO ₂ : Na ₂ O ratio = 2.0)

SKS-6:

Crystalline layered silicate of the formula δ-Na ₂ Si ₂ O ₅

KOH:

potassium hydroxide

H2SO4:

sulfuric acid

HEDP:

Ethane-1-hydroxy-1,1-

PB1:

Sodium perborate monohydrate, average particle size 770 μm

PB1-50:

Sodium perborate monohydrate, average particle size 50 μm

Termamyl:

α-amylase, available from Novo Nordisk A / S

FN3:

Protease, available from Genencor

Savinase:

Protease, available from Novo Nordisk A / S

LF404:

low foaming surfactant from Olin Corporation

SLF18:

low foaming surfactant from Olin Corporation

ACNI:

_Alkyl-capped nonionic surfactant of the formula C _9/11 H _19/23 EO ₈ -cyclohexyl acetal

C ₁₆ AO:

hexadecyl

PA30:

Polyacrylate homopolymer having a molecular weight of about 8,000, available from BASF

Proxel GXL:

Preservative (1,2-benzisothiazolin-3-one) available from Zeneca, Inc.

Polygel premix:

5% Active Polypropylene DKP in water, available from 3 V Inc.

CaCl2:

calcium chloride

CHDM:

cyclohexanedimethanol

BTA:

benzotriazole

Winog:

Paraffin oil, distributed by Wintershall.

Vivapur®:

Microcrystalline cellulose having an average particle size of 0.18 mm

triacetate:

sodium acetate trihydrate

Duramyl:

α-amylase, available from Novo Nordisk A / S

citrate:

Trikaliumcitratmonohydrat

citric acid:

Anhydrous citric acid

bicarbonate:

sodium

PEG 400:

Polyethylene glycol, molecular weight about 400, available from Hoechst

PEG 4000:

Polyethylene glycol, molecular weight about 4000, available from Hoechst

PVPVI:

Polyvinylpyrrolidone-vinylimidazole copolymer, molecular weight about 15,000, available from BASF

MEA:

Monoethanolamine

MAE:

2- (methylamino) ethanol

SF1488:

polydimethylsiloxane

Dowanol

PNB: propylene glycol butyl ether

Silwet L7600:

Siloxane surfactant, available from Witco

In The following examples indicate all amounts in parts by weight.

Examples 1 to 5

A Combination of solvent compositions and machine dishwashing detergents is used to carry a load of dinnerware and cookware cooked, baked and burnt food soils to wash. The cargo includes different contaminants and different substrates: for 2 hours at 140 ° C on Pyrex baked lasagna, for 2 hours at 150 ° C Stainless steel cooked lasagna, for 2 hours at 150 ° C potatoes and cheese cooked on stainless steel, for 2 hours at 150 ° C on stainless steel cooked egg yolk and for 1 hour at 120 ° C and subsequently for 1 hour at 180 ° C cooked sausage. The charge is in a dishwasher Bosch 6032 with 5 liters fleet capacity at 55 ° C without prewashing with the examples 1 to 5 indicated compositions. Examples 1 to Figure 5 illustrates the use of a combination of a two-phase Automatic dishwashing detergent tablet and an organic solvent composition, which is added separately to the main wash cycle of the dishwasher. The Bicomponent compositions of Examples 1 to 5 provided excellent Removal of stewed baked and baked food soils.

Examples 1 to 5 were measured using the same machine dishwashing detergent compositions, but using an organic solvent composition with 10 ml of 2-amino-2-methyl-1-propanol and 2 ml Silwet L7600. The compositions provided excellent removal of cooked, baked and burnt food soils.

Examples 6 to 10

Examples 6 to 10 illustrate the use of a combination of a liquid machine NEN dishwashing detergent and an organic solvent composition for the removal of cooked, baked and scorched contaminants. The bicomponent compositions of Examples 6 to 10 are used to wash a load of cookware and dinnerware according to the method described above (Examples 1 to 5). 30 ml of dishwashing detergent and the 10 ml of the solvent composition are dispensed separately to the main wash cycle of a Bosch 6032 dishwasher with 5 liters of liquor capacity at 55 ° C without prewash. The compositions of Examples 6 to 10 provide excellent removal of oncooked, baked and burnt food soils.

Examples 6 to 10 were repeated using the same machine dishwashing detergent compositions but using an organic solvent composition with 10 ml of 2-amino-2-methyl-1-propanol and 2 ml of Silwet L7600. The compositions provided excellent removal of cooked, baked and burnt food soils.

Examples 11 to 15

Examples Figures 11-15 further illustrate the use of a combination a liquid Automatic dishwashing detergent and an organic solvent composition for removing cooked, baked and burnt-on soils. The bicomponent compositions of Examples 11-15 become for washing a load of cookware and dinnerware according to the above described methods (Examples 1 to 5) used. The liquid machine dishwashing detergent and the organic solvent composition In separate chambers are a water-soluble unit dose bag partially hydrolyzed PVA (30 ml of dishwashing detergent and the 10 ml of the solvent composition) given. The bag gets into the main wash cycle of a Bosch dishwasher 6032 at 55 ° C without prewashing given. The bicomponent compositions of Examples 11 to 15 offer excellent distance from boiled, baked and burned food soils. At the same time offer they have excellent compatibility with the PVA bag material.

Examples 1 to 5 were measured using the same machine dishwashing detergent compositions, but using an organic solvent composition with 10 ml of 2-amino-2-methyl-1-propanol and 2 ml Silwet L7600. The compositions provided excellent removal of cooked, baked and burnt food soils.

Examples 16 to 19

Examples 16 to 19 illustrate the use of a combination of liquid Automatic dishwashing detergent and an organic solvent composition for removing cooked, baked and burnt-on soils. The bicomponent compositions are in a dual chamber bottle stored with an electrically operated pump and in a feed ratio (liquid dishwashing detergent: organic solvent composition) delivered by 3: 1. The compositions of Examples 16 to 19 are used for washing dishes according to the above-described Method (Examples 1 to 5) used. 30 ml dishwashing detergent and 10 ml of the solvent composition are removed from the dual chamber bottle separately to the main wash cycle a dishwasher Bosch 6032 at 55 ° C without prewashing issued. The bicomponent compositions of Examples 16 until 19 offer excellent removal of cooked, baked and burned food soils. The above examples 16 to 19 were with a relationship from liquid Dishwashing liquid to organic solvent composition from 4: 1 with similar ones Repeated results.

Examples 20 to 24

Examples 20-24 illustrate solvent-borne all-in-one machine dishwashing detergent compositions. The compositions of Examples 20 to 24 are for washing of dishes according to the above described methods (Examples 1 to 5) used. 40 ml of dishwashing are added to the main wash cycle of a Bosch 6032 dishwasher at 55 ° C without prewash. The "all-in-one" compositions Examples 20-24 offer excellent removal of baked Dirt.

Claims (12)

Method for removing cooked, baked or scorched food stains from cookware and Eating utensils, including washing the cookware / eating utensils in an automatic dishwasher in the presence of a System of organic solvents, the one fleeting organic content with a vapor pressure of more than 13.32 Pa at 25 ° C and atmospheric pressure less than 50% by weight and a concentration in the wash liquor from 100 ppm to 10,000 ppm. The method of claim 1, including washing the cookware / dinnerware also in counter a surfactant and a Waschmittelbuilders and wherein the surfactant and the Waschmittelbuilder have a concentration in the wash liquor of 10 ppm to 1,000 ppm and from 100 ppm to 5,000 ppm. Method according to one of the preceding claims, wherein the concentration in the wash liquor of the organic solvent in the range of 100 ppm to 10,000 ppm, preferably 200 ppm to 8,000 ppm, more preferably from 500 ppm to 5,000 ppm. Method according to one of the preceding claims, comprising washing the cookware / eating utensils in the presence of a composition from organic solvents and wherein the composition of organic solvents in a unit dosage form which is of a controlled release type of the organic solvent while one or more repeated washes. Method according to one of the preceding claims, comprising washing the cookware / eating utensils in the presence of a composition from organic solvents and wherein the composition of organic solvents in a unit dosage form which is of a sustained release nature of the organic solvent only after the pre-wash enabled. Method according to one of the preceding claims, wherein the composition of organic solvents in the form of a Liquid, paste, cream or gel, which is optionally encapsulated, packed in a single or multi-chamber bag or on a porous carrier material is absorbed. Method according to one of the preceding claims, comprising washing the cookware / dinnerware in an automatic dishwasher in the presence of a machine dishwashing composition comprising a surfactant (preferably comprising a low foaming nonionic surfactant), a detergency builder and a composition from organic solvents in proportions sufficient to maintain a concentration in the wash liquor from 10 ppm to 1,000 ppm of the surfactant, from 100 ppm to 5,000 ppm of the detergency builder and from 100 ppm to 10,000 ppm, preferably from 200 ppm to 5,000 ppm of the organic solvent. Method according to one of the preceding claims, wherein the organic solvent organoamine (especially alkanolamine and more preferably 2-aminoalkanol) and Glycol ether solvent, preferably in a weight ratio from about 3: 1 to about 1: 3, and wherein the glycol ether solvent selected is from ethylene glycol monobutyl ether, diethylene glycol monobutyl ether, Ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, diethylene glycol monomethyl ether, Diethylene glycol monoethyl ether, propylene glycol monobutyl ether, dipropylene glycol monobutyl ether, Ethylene glycol phenyl ether and mixtures thereof. The method of claim 8, wherein the wetting agent selected is made of silicone polyether copolymers, in particular silicone poly (alkylene oxide) copolymers. Method according to one of the preceding claims, wherein the organic solvent at over 133.32 Pa (1 mm Hg) has a volatile content organic compounds of less than 20%, more preferably of less than 10%. Method according to one of the preceding claims, wherein the organic solvent essentially no solvent components with a boiling point of less than 150 ° C, a flashpoint of less than 100 ° C or a Vapor pressure of over 133.32 Pa (1 mm Hg). A process according to any one of the preceding claims wherein the organic solvent is selected from: a) polar hydrogen bonding solvents having a Hansen solubility parameter of at least 20 (MPa) ^1/2 , a polarity parameter of at least 7 (MPa) ^1/2 , preferably at least 12 (MPa) ^1/2 , and a hydrogen bond parameter of at least 10 (MPa) ^1/2 b) polar, non-hydrogen bonding solvents having a Hansen solubility parameter of at least 20 (MPa) ^1/2 , a polarity parameter of at least 7 (MPa) ^1/2 , preferably at least 12 (MPa) ^1/2 , and a hydrogen bonding parameter of at least 10 (MPa) ^1/2 c) of amphiphilic solvents having a Hansen solubility parameter of at least 20 (MPa) ^1/2 , a polarity parameter of at least 7 (MPa) ^1/2 and a hydrogen bond parameter of at least 10 (MPa) ^1/2 d) nonpolar solvents with a polarity parameter of less than 7 (MPa) ^1/2 and a hydrogen bond parameter of less than 10 (MPa) ^1/2 and e) mixtures thereof.