EP2240565A1

EP2240565A1 - Detergents and cleaning agents comprising porous polyamide particles

Info

Publication number: EP2240565A1
Application number: EP09710225A
Authority: EP
Inventors: Bruce Cox; Bernhard Banowski
Original assignee: Henkel AG and Co KGaA
Current assignee: Henkel AG and Co KGaA
Priority date: 2008-02-15
Filing date: 2009-01-15
Publication date: 2010-10-20
Also published as: US20110021409A1; WO2009100962A1; KR20100125247A; JP2011512437A

Abstract

Detergents and cleaning agents are described which contain porous polyamide particles that allow larger amounts of liquids, e.g. scented oil, to be absorbed such that liquid active substances can easily be incorporated into corresponding detergents and cleaning agents. The porous polyamide particles allow the incorporated liquids to be released in a delayed manner.

Description

Detergents and cleaners with porous polyamide particles

The present invention relates to washing and cleaning agents containing porous polyamide particles, in particular to laundry detergents. It further relates to a textile washing process and the use of porous polyamide particles in laundry detergents.

In the field of detergents and cleaners, there is a need for detergents and cleaners which contain particulate carriers which are capable of holding and, depending on the application, storing liquids, especially perfume oils, preferably one longer period of time to deliver again.

For this purpose, there are many models in the prior art. As a rule, certain core materials, such as e.g. Zeolites, with appropriate liquids, e.g. Perfume oil impregnated. Often, such a system is still coated to prevent the liquid from leaking undesirably.

However, there is still a need for corresponding detergents and cleaners with particulate carriers, which are able to absorb preferably also large amount of liquids, store them safely and release them only after a time delay. The satisfaction of such need was the object of this invention.

This object has been surprisingly achieved by the subject matter of the invention, namely a washing or cleaning agent containing a) surfactant (s) and / or builders, b) 0.0001 to 10 wt .-% fragrances), c) 0.1 to 10 Wt .-% spherical porous polyamide particles, which

a number-average particle diameter of 1 to 30 μm,

a BET specific surface area (according to DIN 66131) of 5 m ² / g or more,

an oil absorption capacity (boiled linseed oil) of 160 ml / 100 g or more,

a crystallinity (DSC measurement) of 40% or greater, and

have a quotient of volume-average particle diameter to number-average particle diameter of 1, 0 to 1, 5,

% By weight, based in each case on the total agent.

The production of porous polyamide particles is disclosed, for example, in Japanese Patent Laid-Open Publication No. 2002-80629.

The compositions of the invention contain spherical porous polyamide particles, which a number average particle diameter of 1 to 30 μm,

a BET specific surface area (according to DIN 66131) of 5 m ² / g or more,

an oil absorption capacity (boiled linseed oil) of 160 ml / 100 g or more,

a crystallinity (DSC measurement) of 40% or greater, and

have a quotient of volume-average particle diameter to number-average particle diameter of 1, 0 to 1, 5.

The spherical porous polyamide particles to be used according to the invention can advantageously be incorporated without difficulty into various detergent and cleaning agent matrices, even incorporated into liquid matrices.

The preparation of such spherical porous polyamide particles can generally be accomplished by mixing a solution of polyamide in a suitable solvent and a liquid phase in which polyamides are insoluble. Usually, the liquid phase is water-based, whereby it can be achieved by suitable further solvents that when mixing the liquids first of all a clear solution is formed, from which the polyamide particles precipitate. In particular, mixing ratios of polyamide solution to liquid phase of from 1 to 999 to 300 to 700, preferably from 2 to 998 to 250 to 750, have proven useful in the production.

Polyamide solutions can be provided, for example, with the solvents o-cresol, m-cresol, p-cresol, chlorophenol, phenol or mixtures thereof. Formic acid has also proven itself.

The liquid phase in which polyamides are insoluble is preferably miscible with the aforementioned solvents and, moreover, water-miscible. Preferred liquid phases are aliphatic alcohols, aliphatic ketones and mixtures of these. Methanol, ethanol, n-propanol, isopropanol, acetone, methyl ethyl ketone, methyl isopropyl ketone, methyl isobutyl ketone and mixtures of these have proven particularly useful.

Preferably, mixtures of 10 to 98% by weight of aliphatic alcohols and / or ketones with 2 to 90% by weight of water can be used as the liquid phase from which the polyamide particles precipitate. For nucleation, the liquid phase may contain high molecular weight polyalkylene glycols, e.g. PEG or PPG, in amounts of 0.5 to 10 wt .-% (based on the liquid phase).

The order of mixing is not critical to the manufacturing process. In preferred method

- Aliphatic alcohols and / or ketones and water are simultaneously but separately added to a polyamide solution or a previously prepared mixture of aliphatic alcohols and / or ketones and water is added to a polyamide solution or

Aliphatic alcohols and / or ketones are added to a polyamide solution, after which water is added or

water is added to a polyamide solution, after which aliphatic alcohols and / or ketones are added or

a polyamide solution is added to a previously prepared mixture of aliphatic alcohols and / or ketones and water or

- Add a polyamide solution to aliphatic alcohols and / or ketones and water and then add water.

The formation of the porous polyamide particles by precipitation takes place within one second up to two hours and can be assisted by stirring. Preferably, the mixing of the liquid and formation of the particles at temperatures of from 5 to 7O ⁰ C is carried out, particularly preferably at 15 to 6O ⁰ C.

After the above period, the polyamide particles can be easily separated from the solvent mixture by decantation, filtration or centrifugation. This is preferably followed by washing with methanol and / or acetone and drying in vacuo.

Very particularly preferred processes for the preparation use a solution of polyamide 11 and / or polyamide 12 in phenol, which contains 0.1 to 50 wt .-% Polymaid (e) based on their weight. As a liquid phase in such preferred method, a mixture of ethanol (preferably 50 to 90% by weight, based on the liquid phase), ethylene glycol (preferably 1 to 10 wt .-%, based on the liquid phase) and glycerol (preferably 1 to 12% by weight, based on the liquid phase).

The polyamide solution in phenol (preferably 30 to 70 wt .-%, based on the mixture), the liquid phase (preferably 40 to 65 wt .-%, based on the mixture) and polyethylene glycol and / or polypropylene glycol having molecular weights> 1000 daltons ( preferably 0.5 to 10 wt .-%, based on the mixture) are stirred together to form a mixture containing 0.05 to 20 wt .-% polyamide (e).

This mixture, which ideally has a viscosity below 200 Pas is stirred at 20 to 8O ⁰ C, preferably at 25 to 65 ⁰ C for 30 to 60 minutes.

The spherical porous polyamide particles produced by the processes described above usually have number-average particle diameters of 0.1 to 100 .mu.m, preferably from 0.3 to 50 .mu.m, in particular from 0.5 to 25 microns. The ratio of volume-average particle diameter (Dv) number-average particle diameter (Dn), which is also called particle size distribution index (PDI = Dv / Dn), is preferably in the range of 1, 0 to 1, 5, preferably from 1, 0 to 1, 3.

The spherical porous polyamide particles have a BET specific surface area (according to DIN 66131) of 5 m ² / g or more. Particularly preferred particles have a BET specific surface area (according to DIN 66131) of 5 to 80 m ² / g, preferably of 6 to 60 m ² / g and in particular of 7.5 to 50 m ² / g. Very particularly preferred compositions according to the invention are characterized in that the spherical porous polyamide particles have a BET specific surface area (according to DIN 66131) of 6 m ² / g or more, preferably 7 m ² / g or more and in particular 8 m ² / g or more.

Preferred porous polyamide particles have a porosity index (RI = S / S0, where SO is the specific surface area based on the number-average particle diameter and the formula S0 = 6 / (p * Dn) where p is the density of the particles and Dn is the number-average particle diameter and in which S is the BET specific surface area) in the range of 3 to 100, preferably in the range of 5 to 70. The spherical porous polyamide particles have an average pore diameter of 0.01 to 0.20 .mu.m, preferably 0.02 to 0.1 μm and a crystallinity (DSC measurement) of 40% or greater.

The standard enthalpy (or specific heat of fusion) of the spherical porous polyamide particles is measured by DSC. In this case, the sample is heated under nitrogen atmosphere from room temperature (2O ⁰ C) starting with a temperature increase rate of 5 ° C / min. The standard enthalpy is calculated from the area of the heat absorption peak between 12O ⁰ C and 23O ⁰ C. The crystallinity of the spherical porous polyamide particles is the quotient of the measured specific heat of fusion and the standard enthalpy of crystalline polyamide, the latter for polyamide 12 being 209 J / g.

With respect to the oil absorption capacity of the particles used in the agents of the present invention, preferred agents are those in which the spherical porous polyamide particles have an oil absorption capacity (boiled linseed oil) of 160 ml / 100 g or more, preferably 170 ml / 100 g or more.

The polyamide particles contained in the agents according to the invention can preferably be loaded with a liquid, preferably comprising i. Fragrances (perfume oils) ii. liquid detergent ingredients, such as preferably surfactants, in particular nonionic surfactants, silicone oils, paraffins iii. liquid non-pharmaceutical additives or agents, e.g. Oils such as almond oil,

Mixtures of the aforesaid. However, it is most preferred that fragrances (perfume oils) are included in the polyamide particles. The loading of the polyamide particles can be done, for example, by simply mixing the polyamide particles with the desired amount of the desired liquid, eg perfume oil.

As fragrances or perfume oils, all known substances and mixtures can be used. For the purposes of this invention, the terms "fragrance (s)" and "perfume oil (s)" are used synonymously. This means, in particular, all those substances or mixtures thereof that are perceived by humans and animals as odor, in particular perceived by humans as a fragrance. As perfume oils, for example, individual fragrance compounds, e.g. the synthetic products of the ester, ether, aldehyde, ketone, alcohol and hydrocarbon type are used. Fragrance compounds of the ester type are known e.g. Benzyl acetate, phenoxyethyl isobutyrate, p-tert-butylcyclohexyl acetate, linalyl acetate, dimethylbenzylcarbinyl acetate, phenylethyl acetate, linalyl benzoate, benzyl formate, ethyl methyl phenyl glycinate, allyl cyclohexyl propionate, styrallyl propionate and benzyl salicylate. The ethers include e.g. Benzyl ethyl ether, to the aldehydes e.g. the linear alkanals having 8 -18 C atoms, citral, citronellal, citronellyloxyacetaldehyde, cyclamen aldehyde, hydroxycitronellel, lilial and bourgeonal, to the ketones e.g. the ionones, isomethylionone and methyl cedryl ketone; the alcohols anethole, citronellol, eugenol, geraniol, linalool, phenylethyl alcohol and terpineol; the hydrocarbons mainly include the terpenes and balsams. Preferably, however, mixtures of different fragrances are used, which together produce an attractive fragrance. The perfume oils may, of course, also contain natural fragrance mixtures, such as are available from plant or animal sources, e.g. Pine, citrus, jasmine, lily, rose or ylang-ylang oil.

The polyamide particles, in particular the liquid contained therein, may preferably also contain one or more (preferably liquid) skin-care and / or skin-protecting active substances. Skin-care active substances are all those active substances which give the skin a sensory and / or cosmetic advantage. Skin-care active substances are preferably selected from the following substances: a) waxes such as, for example, carnauba, spermaceti, beeswax, lanolin and / or derivatives thereof and others. b) Hydrophobic plant extracts c) Hydrocarbons such as squalene and / or squalanes d) Higher fatty acids, preferably those having at least 12 carbon atoms, for example lauric acid, stearic acid, behenic acid, myristic acid, palmitic acid, oleic acid, linoleic acid, linolenic acid, isostearic acid and / or polyunsaturated fatty acids and other. e) Higher fatty alcohols, preferably those having at least 12 carbon atoms, for example lauryl alcohol, cetyl alcohol, stearyl alcohol, oleyl alcohol, behenyl alcohol, cholesterol and / or 2-hexadecanol and others. f) esters, preferably such as cetyloctanoates, lauryl lactates, myristyl lactates, cetyl lactates, isopropyl myristates, myristyl myristates, isopropyl palmitates, isopropyl adipates, butyl stearates, decyloleates, cholesterol stearates, glycerol monostearates, glycerol distearates, glycerol tristearates, alkyl lactates, alkyl citrates and / or alkyl tartrates and others , g) lipids such as cholesterol, ceramides and / or sucrose esters and others. h) vitamins such as vitamins A, C and E, vitamin C esters, including vitamin C

Alkyl esters and others, i) sunscreens j) phospholipids k) derivatives of alpha hydroxy acids I) fragrances m) germicides for cosmetic use, both synthetic and, for example, salicylic acid and / or other natural as well as neem oil and / or others, n) Silicones o) Natural oils, eg Almond oil and mixtures of any of the aforementioned components.

The polyamide particles of the invention may advantageously contain very large quantities of liquids, e.g. Perfume oils, absorb and still remain free-flowing. The polyamide particles may e.g. readily up to 100% by weight (and beyond) of perfume, wt% based on the original polyamide particles without liquid loading, yet remaining free flowing. It can also achieve higher loads while maintaining good powder properties. The loading of the polymer particles with liquid, in particular perfume oil is freely adjustable. Preferably, the polyamide particles may e.g. with at least 20 wt .-%, 30 wt .-%, 40 wt .-% or 50 wt .-% of a liquid, in particular perfume oil, are loaded, wt .-% based on the original polyamide particles without loading with liquid. Advantageously, the polyamide particles can also be loaded with even greater amounts, e.g. with at least 60 wt .-%, 70 wt .-%, 80 wt .-% or 90 wt .-% of a liquid, in particular perfume oil, are loaded, wt .-% based on the original polyamide particles without loading with liquid. The polyamide particles may even be loaded with even greater amounts, e.g. at least 100 wt .-%, 120 wt .-% or 150 wt .-% of a liquid, in particular perfume oil, are loaded, wt .-% based on the original polyamide particles without loading with liquid.

The term detergents or cleaning agents in the context of this invention includes in particular a) the laundry detergents, b) the textile aftertreatment agents (such as softeners, conditioning wipes, etc.) and c) the cleaners, especially hard surface cleaners (such as preferably all-purpose cleaners and specialty cleaners, such as eg dishwashing detergent, toilet cleaner) and the cleaning aids. The preparation of the compositions according to the invention is preferably based on the needs of the intended use. Agents of the invention may therefore be in solid, semi-solid, liquid, disperse, emulsified, suspended or gel form. Solid and liquid agents may, for example, be packaged in sachets or (preferably self-dissolving) sachets (pouches), especially in multi-chamber pouches. For the purposes of the invention, the term liquid also includes any solid dispersions in liquids. Compositions according to the invention may also be present as pastes, lotions or creams. Solid agents may be present, for example, as free-flowing powders, as flakes, as solid blocks, as pieces (eg soap bars), as spheres or sticks or tablets, in particular multi-layered tablets. Inventive liquid agents may also be multi-phase, the phases may for example be arranged horizontally, ie one above the other, or vertically, so next to each other, be arranged.

Thus, if the washing or cleaning agent according to the invention is a textile washing agent, then a preferred embodiment of the invention is present. A laundry detergent comprising a) surfactant (s) and / or builders, b) from 0.0001 to 10% by weight odoriferous substances), c) from 0.1 to 10% by weight of spherical porous polyamide particles which

a number-average particle diameter of 1 to 30 μm,

a BET specific surface area (according to DIN 66131) of 5 m ² / g or more,

an oil absorption capacity (boiled linseed oil) of 160 ml / 100 g or more,

a crystallinity (DSC measurement) of 40% or greater, and

% By weight, based in each case on the total agent, thus corresponds to a preferred embodiment of the invention.

A particular advantage of a laundry detergent according to the invention is e.g. in that the polyamide particles contained in it can be applied to the laundry to be washed in the textile washing, and thereafter slowly and over a prolonged period, the liquid incorporated in them, for. B. can release a perfume oil. This allows an often sought-after "slow-release" effect or "long-lasting" effect. The washed laundry smells evenly over a longer period of time. Likewise, other incorporated liquids, such as e.g. skin-care oils or other active ingredients, released in a sustained release. In addition, the polyamide particles, especially after deposition on the laundry, adsorb bad odors.

It is particularly preferred if the textile detergent according to the invention anionic, nonionic and / or cationic surfactants, in particular a mixture of anionic and nonionic Containing surfactants, wherein the total composition preferably contains 0.1 to 50 wt .-%, in particular 10 wt .-% to 40 wt .-% surfactant. This corresponds to a preferred embodiment of the invention and enables optimum cleaning performance. Preferably usable surfactants are described in more detail below.

It is particularly advantageous if the textile detergent according to the invention contains alkylbenzenesulfonate, preferably linear alkylbenzenesulfonate (LAS), advantageously in amounts of 0.1-25% by weight, more preferably 1-20% by weight, for example in amounts of 5-15 Wt .-%, based on the total agent. This corresponds to a preferred embodiment of the invention and allows very particularly advantageous cleaning performance. If laundry detergent according to the invention alkyl sulfate, in particular C ₂ -C ₈ fatty alcohol sulfate contains, advantageously in amounts of 0.1 - 25 wt%, more advantageously 1- 20% by weight, for example in amounts of 5-15 wt .-%. , Based on the total agent, so is a preferred embodiment of the invention.

Other suitable anionic surfactants which may also be used are e.g. Alkanesulfonates (eg C13-C18 secondary alkanesulfonate), methyl ester sulfonates (eg α-C12-C18 methyl ester sulfonate) and α-olefin sulfonates (eg α-C14-C18 olefin sulfonate) and alkyl ether sulfates (eg C12-C14 fatty alcohol 2EO ether sulfate) and / or soaps. However, FAS and / or LAS are particularly suitable.

The anionic surfactants, including soaps, may be in the form of their sodium, potassium or ammonium salts and as soluble salts of organic bases, such as mono-, di- or triethanolamine. The anionic surfactants are preferably present in the form of their sodium or potassium salts, in particular in the form of the sodium salts.

If the textile detergent according to the invention comprises nonionic surfactant, in particular alkoxylated fatty alcohol, in particular in amounts of 0.01-30% by weight, based on the total agent, then again a preferred embodiment of the invention is present wherein the combined use of alkylbenzenesulfonate with nonionic surfactant is very particularly preferred. Further suitable nonionic surfactants are alkylphenol polyglycol ethers (APEO), (ethoxylated) sorbitan fatty acid esters (sorbitans), alkyl polyglucosides (APG), fatty acid glucamides, fatty acid ethoxylates, amine oxides, ethylene oxide-propylene oxide block polymers, polyglycerol fatty acid esters and / or fatty acid alkanolamides. Sugar-based nonionic surfactants, in particular APG, are particularly preferred. According to a further preferred embodiment of the invention, the laundry detergent according to the invention comprises enzymes, preferably amylase, pectinase, carbonic anhydrase, tannase, lipase, mannanase, protease and / or cellulase, advantageously in amounts of 0.0001 - 5% wt .-%, based on the total agent. A suitable minimum amount may also be 0.001 wt% or 0.01 wt%, based on the total agent. Preferably usable enzymes are described in more detail below. Furthermore, it is very particularly preferred that the textile detergent according to the invention comprises a builder system, preferably a zeolite-containing builder system, preferably comprising zeolite in amounts of> 5% by weight, more preferably> 10% by weight, more preferably> 15% by weight, especially> 20 wt .-%, wt .-% based on the total Medium. A reasonable upper limit of zeolite may be, for example, 60% by weight, 50% by weight or 40% by weight, based on the total agent. This corresponds to a preferred embodiment of the invention. For the purposes of the invention, the term "builder system" also includes those "systems" which consist only of a single builder, such as zeolite. However, it is preferred that at least 2 substances with a builder effect be used, for example zeolite in combination with soda, or the like. It is likewise particularly preferred if the textile detergent according to the invention contains a soluble builder system, preferably comprising soda, silicate, citrate and / or polycarboxylates, advantageously in amounts of from 0.1 to 50% by weight, based on the total agent. This corresponds to a preferred embodiment of the invention. If such a soluble builder system is present, it is highly preferred if only small amounts of insoluble builders, such as in particular zeolite, for example <5 wt .-% to 0.1 wt .-% are included, especially in such case no insoluble builder is included. It is likewise possible for the textile detergent according to the invention to comprise a phosphate-containing builder system, wherein phosphate is preferably present in amounts of 1-40% by weight, in particular 5-30% by weight, based on the total agent. However, according to another preferred embodiment, the laundry detergent according to the invention is free of phosphates.

According to a further preferred embodiment of the invention, the laundry detergent according to the invention can be in liquid or solid form, but preferably in solid form, in particular it can be powdery or granular, advantageously in the form of a shaped body, in particular in tablet form.

The textile laundry detergent according to the invention is characterized according to a further preferred embodiment of the invention in that the spherical porous polyamide particles contained are loaded with a liquid, preferably a hydrophobic liquid, in particular comprising fragrances.

The textile laundry detergents according to the invention, which can be in the form of, in particular, pulverulent solids, in post-compacted particulate form, as homogeneous solutions or suspensions, can furthermore in principle contain all known ingredients customary in such compositions. The agents according to the invention can, as has already been shown, in particular builder substances, surface-active surfactants, bleaching agents, bleach activators, water-miscible organic solvents, enzymes, sequestering agents, electrolytes, pH regulators and other auxiliaries, such as optical brighteners, fluorescers, grayness inhibitors, anti-shrinkage agents, anti-crease agents , Color transfer inhibitors, antimicrobial agents, germicides, fungicides, antioxidants, preservatives, corrosion inhibitors, antistatic agents, bittering agents, ironing aids, repellents and impregnating agents, swelling and anti-slip agents, neutral filler salts and UV absorbers, foam regulators and colorants and fragrances. The textile detergents according to the invention preferably comprise, as already described, one or more surfactants, in particular anionic surfactants, nonionic surfactants and mixtures thereof, but also cationic, zwitterionic and amphoteric surfactants. A textile detergent according to the invention may preferably contain at least one water-soluble and / or water-insoluble, organic and / or inorganic builder. Builders may preferably be present in the laundry detergents according to the invention in amounts of up to 75% by weight, in particular 5% by weight to 50% by weight, based on the total agent.

Suitable bleaching agents for use in laundry detergents according to the invention are e.g. Peroxygen compounds such as in particular organic peracids or pers acidic salts of organic acids, such as phthalimidopercaproic acid, perbenzoic acid or salts of diperdo-decanedioic acid, hydrogen peroxide and under the washing conditions hydrogen peroxide donating inorganic salts, which include perborate, percarbonate, persilicate and / or persulfate such as caroate into consideration. If solid peroxygen compounds are to be used, they can be used in the form of powders or granules, which can also be enveloped in a manner known in principle. If an agent according to the invention contains peroxygen compounds, they are present in amounts of preferably up to 50% by weight, in particular from 5% by weight to 30% by weight. The addition of small amounts of known bleach stabilizers such as phosphonates, borates or metaborates and metasilicates and magnesium salts such as magnesium sulfate may be useful.

As bleach activators, it is possible to use compounds which, under perhydrolysis conditions, give aliphatic peroxycarboxylic acids having preferably 1 to 10 C atoms, in particular 2 to 4 C atoms, and / or optionally substituted perbenzoic acid. Suitable substances are those which carry O- and / or N-acyl groups of the stated C atom number and / or optionally substituted benzoyl groups. Preference is given to polyacylated alkylenediamines, in particular tetraacetylethylenediamine (TAED).

To the textile detergents according to the invention, especially when they are in liquid or pasty form, usable organic solvents in addition to water include alcohols having 1 to 4 carbon atoms, in particular methanol, ethanol, isopropanol and tert-butanol, diols having 2 to 4 C. -Atomen, in particular ethylene glycol and propylene glycol, and mixtures thereof and derived from the classes of compounds mentioned ether. Such water-miscible solvents are preferably present in the compositions according to the invention preferably in amounts of not more than 30% by weight, in particular from 6% by weight to 20% by weight, optionally.

In particular, when used in mechanical processes, it may be advantageous to add conventional foam inhibitors to the laundry detergents. Suitable foam inhibitors are, for example, soaps of natural or synthetic origin, which have a high proportion of C18-C24 fatty acids. In order to avoid the catalyzed by heavy metals decomposition of certain detergent ingredients, Substances that complex heavy metals can be used. Suitable heavy metal complexing agents are, for example, the alkali metal salts of ethylenediaminetetraacetic acid (EDTA) or nitrilotriacetic acid (NTA) and alkali metal salts of anionic polyelectrolytes such as polymaleates and poly-sulfonates.

Solid laundry detergents may additionally be added e.g. contain neutral filler salts such as sodium sulfate. Liquid laundry detergents may additionally comprise e.g. still containing thickening agents, e.g. to set a desired viscosity. Suitable and usable thickeners are also described below in connection with the textile aftertreatment agents. The thickeners mentioned there can also be used in liquid laundry detergents.

The preparation of solid laundry detergents according to the invention presents no difficulties and can be carried out in a known manner, for example by spray drying or granulation, with enzymes and any further thermally sensitive ingredients such as, for example, bleaching agents optionally being added separately later. The incorporation of the polyamide particles to be used according to the invention can be carried out e.g. In order to produce compositions of the invention having an increased bulk density, in particular in the range from 650 g / l to 950 g / l, a process comprising an extrusion step is preferred.

Liquid or pasty compositions according to the invention in the form of customary solvent-containing solutions are generally prepared by simply mixing the ingredients, which can be added in bulk or as a solution in an automatic mixer. The

A preferred powdery heavy-duty detergent according to the invention, in addition to the polyamide particles according to the invention, may preferably be e.g. Contain components that are selected from the following:

Anionic surfactants, e.g. Alkyl benzene sulfonate, alkyl sulfate, in amounts of e.g. 0-40 wt .-%, advantageously 5-30 wt .-%, preferably 8-15 wt .-%, in particular 15-20 wt .-%,

Nonionic surfactants, e.g. Fatty alcohol polyglycol ethers, alkylpolyglucoside, fatty acid glucamide, in amounts of e.g. 0-30% by weight, advantageously 0.1-20% by weight, preferably 2-15% by weight, in particular 6-11% by weight,

Builders, e.g. Zeolite, polycarboxylate, sodium citrate, in amounts of e.g. 0-70% by weight, advantageously 5-60% by weight, preferably 10-55% by weight, in particular 15-40% by weight,

Alkalis, e.g. Sodium carbonate, in amounts of e.g. 0-35 wt .-% advantageously 1-30 wt .-%, preferably 2-25 wt .-%, in particular 5-20 wt .-%,

Bleaching agents, e.g. Sodium perborate, sodium percarbonate, in amounts of e.g. 0-30% by weight, advantageously 5-25% by weight, preferably 10-20% by weight,

Corrosion inhibitors, for example sodium silicate, in amounts of, for example, 0-10% by weight, advantageously 1-6% by weight, preferably 2-5% by weight, in particular 3-4% by weight, Stabilizers, eg phosphonates, advantageously 0-1% by weight,

Foam inhibitor, e.g. Soap, silicone oils, paraffins advantageously 0-4 wt.%, Preferably 0.2-3 wt.%, In particular 1-1 wt.

Enzymes, e.g. Proteases, amylases, cellulases, lipases, advantageously 0-2% by weight, preferably 0.2-1% by weight, in particular 0.3-0.8% by weight,

- grayness inhibitor, e.g. Carboxymethylcellulose, advantageously 0-1% by weight,

Discoloration inhibitor, e.g. Polyvinylpyrrolidone derivatives, advantageously 0-2% by weight,

- Adjustment means, e.g. Sodium sulfate, advantageously 0-20% by weight,

Optical brighteners, e.g. Stilbene derivative, biphenyl derivative, advantageously 0.1-0.3 wt .-%, in particular 0.1-0.4 wt .-%,

- fragrances

- Water

- Soap

- bleach activators

- Cellulosic derivatives

- dirt deflector,

% By weight, based in each case on the total agent.

A preferred, inventive liquid heavy duty detergent can in addition to the inventive

Polyamide particles, preferably e.g. contain the following components that are selected from the following:

Anionic surfactants, e.g. Alkyl benzene sulfonate, alkyl sulfate, in amounts of e.g. 0-40 wt .-%, advantageously 5-40 wt .-%, preferably 8-30 wt .-%, in particular 15-25 wt .-%,

Nonionic surfactants, e.g. Fatty alcohol polyglycol ethers, alkylpolyglucoside, fatty acid glucamide, in amounts of e.g. 0-30% by weight, advantageously 0.1-25% by weight, preferably 5-20% by weight, in particular 10-15% by weight,

Builders, e.g. Zeolite, polycarboxylate, sodium citrate, advantageously 0-15% by weight, preferably 0.01-10% by weight, in particular 0.1-5% by weight,

Foam inhibitor, e.g. Soap, silicone oils, paraffins, in amounts of e.g. 0-10 wt .-%, advantageously 0.1-4 wt .-%, preferably 0.2-2 wt .-%, in particular 1-3 wt .-%,

Enzymes, e.g. Proteases, amylases, cellulases, lipases, in amounts of e.g. 0-3 wt .-%, advantageously 0.1-2 wt .-%, preferably 0.2-1 wt .-%, in particular 0.3-0.8 wt .-%,

Optical brighteners, e.g. Stilbene derivative, biphenyl derivative, in amounts of e.g. 0-1% by weight, advantageously 0.1-0.3% by weight, in particular 0.1-0.4% by weight,

- fragrances

- stabilizers,

- Water

Soap, in amounts of, for example, 0-25% by weight, advantageously 1-20% by weight, preferably 2-15% by weight, in particular 5-10% by weight, - Alcohols / solvents, advantageously 0-25 wt .-%, preferably 1-20 wt .-%, in particular 2- 15 wt .-%, wt .-% in each case based on the total agent.

Another object of the invention is a textile washing process, using a laundry detergent according to the invention (as described above), wherein the wash temperature <6O ⁰ C, preferably <40 ⁰ C is.

Another object of the invention is the use of spherical porous polyamide particles, which

a number-average particle diameter of 1 to 30 μm,

a BET specific surface area (according to DIN 66131) of 5 m ² / g or more,

an oil absorption capacity (boiled linseed oil) of 160 ml / 100 g or more,

a crystallinity (DSC measurement) of 40% or greater, and

- Have a quotient of volume-average particle diameter to number-average particle diameter of 1, 0 to 1, 5, as a carrier for liquid active substances, in particular fragrances, in laundry detergents.

According to a preferred embodiment, this use is intended for the sustained release of liquid active substances, in particular fragrances, in textile washing. If the washing or cleaning agent according to the invention is a textile aftertreatment agent, then another preferred embodiment of the invention is present.

Accordingly, a textile aftertreatment agent comprising a) surfactant (s) and / or builders, b) 0.0001 to 10 wt .-% fragrances), c) 0.1 to 10 wt .-% spherical porous polyamide particles, which

a number-average particle diameter of 1 to 30 μm,

a BET specific surface area (according to DIN 66131) of 5 m ² / g or more,

an oil absorption capacity (boiled linseed oil) of 160 ml / 100 g or more,

a crystallinity (DSC measurement) of 40% or greater, and

Wt .-% in each case based on the total agent, a preferred embodiment of the invention.

The textile aftertreatment agents encompassed by the invention include, in particular, fabric softeners, also called softening agents or fabric conditioners, and corresponding wipes for the dryer application. A particular advantage of a textile aftertreatment agent according to the invention, in particular a fabric softener, is, for example, that the polyamide particles contained in it can be applied to the laundry to be washed in the textile washing, and thereafter slowly and over a longer period of time the liquid incorporated in them, e.g. B. can release a perfume oil. This allows an often sought-after "slow-release" effect or "Iong-Iasting" effect. The washed Laundry smells evenly over a longer period of time. Likewise, other incorporated fluids, such as skin-care oils or other active substances can be released in a retarded manner. In addition, the polyamide particles, especially after deposition on the laundry, adsorb bad odors.

The textile aftertreatment agent according to the invention can be present in solid form, preferably in powder or granular form, advantageously in the form of a shaped body, in particular in tablet form, or in liquid form. The textile aftertreatment agent according to the invention can also be a conditioning substrate. Preferred conditioning substrates are so-called dryer sheets, i. Cloths for laundry care in the tumble dryer, which preferably contain a softening component and perfume.

The textile aftertreatment agents according to the invention are preferably fabric softeners, ie textile aftertreatment agents which contain a softening component. Preferably included active ingredients in the fabric softener formulations according to the invention are cationic surfactants, in particular esterquats. Esterquats are quaternary ammonium compounds having preferably two hydrophobic radicals, each containing an ester group as a so-called predetermined breaking point for easier biodegradation.

When the textile aftertreatment agent according to the invention thus contains a softening compound, the amount of softening compound preferably 5 to 80 wt .-%, advantageously 6 to 40 wt .-%, more preferably 7 to 20 wt .-% and in particular 8 to 15 wt. -%, in each case based on the total agent, is, so is a preferred embodiment of the invention. If a cationic surfactant is present, advantageously a quaternary ammonium compound, in particular esterquat, preferably in amounts of> 0.1 wt .-%, advantageously 1 to 40 wt .-%, in particular 3 to 30 wt .-%, based on the entire means, so is a further preferred embodiment of the invention.

After-treatment agents are usually brought into contact with the textiles in the last step of a conventional textile washing process, the rinse cycle. The aftertreatment can also be carried out in the tumble dryer and in particular through the use of the previously mentioned dryer cloths.

The softening component includes, for example, quaternary ammonium compounds such as monoalk (en) yltrimethylammonium compounds, dialk (en) yldimethylammonium compounds, mono-, di- or triesters of fatty acids with alkanolamines. Particularly preferred plasticizing components are alkylated quaternary ammonium compounds of which at least one alkyl chain is interrupted by an ester group and / or amido group. Very particular preference is given to N-methyl-N- (2-hydroxyethyl) -N, N- (ditallowacyloxyethyl) aminomonine nethanesulfate or bis (palmitoyloxyethyl) -hydroxyethylmethylammoniumninethosulfate.

The textile aftertreatment agents, especially in the form of fabric softeners, may also contain nonionic softening components, especially polyoxyalkylene glycol alkanoates, polybutylenes, long-chain fatty acids, ethoxylated fatty acid ethanolamides, alkyl polyglucosides, in particular sorbitan mono, di- and triesters, and fatty acid esters of polycarboxylic acids,

In the textile aftertreatment agent according to the invention, in particular softener, the softening component is in amounts of preferably 0.1 to 80 wt .-%, usually 1 to 40 wt .-%, preferably 2 to 20 wt .-% and in particular 3 to 15 wt. -%, in each case based on the entire textile aftertreatment agent.

A preferred textile aftertreatment agent, especially in the form of a fabric conditioner, contains essential oil and a cationic softening component having two fatty alkyl groups. In such a textile aftertreatment agent, the cationic softening component functions not only as a fabric softener, but also aids in the deposition of the essential oil on the fabrics.

In a preferred embodiment of the invention, an inventive

Textile aftertreatment agent an emulsifier, preferably a nonionic surfactant, in particular comprising alkoxylated fatty alcohol and / or alkyl glycoside.

As a further component, the textile aftertreatment agents, in particular in the form of

Softeners, so optionally contain one or more nonionic surfactants, wherein those can be used, which are also commonly used in detergents.

The textile aftertreatment agent may further contain at least one aromatherapy component. When

Aromatherapy component is preferably an essential oil used. Essential oil also falls under the generic term of the fragrances. The amount of essential oil in the textile aftertreatment agent is preferably from 0.0001 to 3% by weight, more preferably from 0.01 to 1% by weight, and most preferably from 0.05 to 0.5% by weight.

According to a further preferred embodiment of the invention, the textile aftertreatment agents according to the invention are characterized in that the spherical porous polyamide particles contained with a liquid, preferably a hydrophobic liquid, in particular comprising fragrances and / or cosmetic actives, such as nourishing, antibacterial and / or deodorizing substances.

In addition to the surfactants and / or softening compounds, the textile aftertreatment agents may contain further ingredients which further improve the performance and / or aesthetic properties of the textile aftertreatment agent. In the context of the present invention, preferred textile aftertreatment agents additionally comprise one or more substances from the group of builders, bleaches, bleach activators, enzymes, electrolytes, nonaqueous solvents, pH adjusters, perfumes, perfume carriers, fluorescers, dyes, hydrotopes, foam inhibitors, silicone oils, antiredeposition agents, optical brighteners, grayness inhibitors, anti-shrinkage agents, anti-wrinkling agents, color transfer inhibitors, antimicrobial agents, germicides, fungicides, antioxidants, preservatives, corrosion inhibitors, antistatic agents, bittering agents, ironing aids, repellents and impregnating agents, swelling and anti-slip agents, neutral filler salts and UV absorbers.

A liquid textile aftertreatment agent may contain a thickener. The thickener may include, for example, a polyacrylate thickener, xanthan gum, gellan gum, guar gum, alginate, carrageenan, carboxymethyl cellulose, bentonites, wellan gum, locust bean gum, agar-agar, tragacanth, gum arabic, pectins, polyoses, starch, dextrins, gelatin and casein include. However, modified natural substances such as modified starches and celluloses, examples which may be mentioned here include carboxymethylcellulose and other cellulose ethers, hydroxyethyl and -propylcellulose and core flour ethers, can be used as thickeners.

Non-aqueous solvents that can be used in the liquid textile aftertreatment agents, for example, from the group of monohydric or polyhydric alcohols, alkanolamines or glycol ethers, provided they are miscible in the specified concentration range with water. The pH of the liquid textile aftertreatment agent, in particular in the form of a fabric conditioner, is preferably between 1 and 6, and preferably between 1, 5 and 3.5.

In a preferred embodiment, the textile aftertreatment agent contains one or more perfumes in an amount of usually up to 10 wt .-%, preferably 0.01 to 5 wt .-%, in particular 0.05 to 5 wt .-%, particularly preferably 0.1 to 3 wt .-% and most preferably 0.4 to 0.8 wt .-%. The amount of perfume used is also on the type of

Textile aftertreatment agent dependent. As perfume oils or fragrances, for example, individual fragrance compounds, such as the synthetic products of the ester type, ethers, aldehydes, ketones, Alcohols and hydrocarbons are used. Preferably, however, mixtures of different fragrances are used, which together produce an attractive fragrance. Such

Perfume oils may also contain natural fragrance mixtures, such as those available from plant sources.

Furthermore, the textile aftertreatment agents according to the invention for the treatment of textile

Sheets that confer an advantage on contact with skin can be used.

The preparation of the textile aftertreatment agents can be obtained by techniques known to those skilled in the art. This can be done, for example, by mixing the raw materials, if necessary

Use of high-shear mixing equipment, done. It is recommended to melt the preferably contained softening component (s) and a subsequent dispersing the

Melt in a solvent, preferably water. The other ingredients can be integrated by simply adding. The polyamide particles may e.g. be dispersed or mixed in a final step in the otherwise finished product.

A preferred textile aftertreatment agent according to the invention comprises, in addition to the polyamide particles according to the invention, in particular a) softening compound, advantageously cationic surfactants, preferably esterquats, advantageously in amounts of 5-30% by weight, for example 10-20% by weight, b) emulsifiers, preferably nonionic surfactants, For example, fatty alcohol ethoxylates, advantageously in amounts of 0-5 wt .-%, for example, 0.1-3 wt .-%. c) preservatives, advantageously in amounts of 0-2% by weight, for example 0.001-0.5% by weight, d) odoriferous substances, preferably in amounts of 0-10% by weight or 0-5% by weight , eg 0.01-1% by weight, e) dyes, advantageously in amounts of 0-0.1% by weight, eg 0.01-0.005% by weight, f) optionally water, preferably in amounts> 50% by weight or> 60% by weight, for example 70-95% by weight or for example 75-90% by weight. e) optionally solvents, preferably monohydric alcohols, in particular 2-propanol, advantageously in amounts of from 0.05 to 5% by weight, in particular from 0.1 to 4% by weight, in particular from 0.3 to 3% by weight, f) optionally pH-adjusting agent, preferably 0.01 to 5 wt .-%, in particular 0.02 to 1 wt .-% i) optionally electrolytes, preferably from the group of inorganic salts, advantageously MgCl ₂ or NaCl, 0.01 up to 5% by weight, in particular from 0.05 to 2% by weight, j) optionally skin-care active substances, for example almond oil, preferably in an amount of from 0 to 15% by weight.

%, advantageously 0.1-10% by weight, in particular 0.5-5% by weight, j) optionally thickener, e.g. polyacrylate-based, preferably in amounts of 0.01 to 3 wt .-%, in particular 0.1 to 1 wt .-%,

% By weight, based in each case on the total agent. Another object of the invention is a Textilkonditionierverfahren using a textile aftertreatment agent according to the invention (as described above) in the rinse of an automatic washing machine.

Another object of the invention is a textile conditioning process using a textile aftertreatment agent according to the invention in the form of a conditioning substrate in an automatic clothes dryer.

Another object of the invention is the use of an inventive

Textile aftertreatment agent for conditioning textile fabrics.

Another object of the invention is the use of spherical porous

Polyamide particles, which

a number-average particle diameter of 1 to 30 μm,

a BET specific surface area (according to DIN 66131) of 5 m ² / g or more,

an oil absorption capacity (boiled linseed oil) of 160 ml / 100 g or more,

a crystallinity (DSC measurement) of 40% or greater, and

- Have a quotient of volume-average particle diameter to number-average particle diameter of 1, 0 to 1, 5, as a carrier for liquid active substances, in particular fragrances, in textile aftertreatment agents. If this use is intended for the sustained release of liquid active substances, in particular fragrances, in the treatment of textile fabrics in the context of textile conditioning, a preferred embodiment of the invention is provided. Is the use for finishing textile fabrics with liquid active substances, such as e.g. skin-protecting oils which confer an advantage on contact with the skin, so is also a preferred embodiment of the invention.

Likewise, a preferred embodiment of the invention is present when the washing or cleaning agent according to the invention is a cleaning agent, in particular a hard surface cleaner. Thus, a detergent containing a) surfactant (s) and / or builders, b) from 0.0001 to 10% by weight odorants), c) from 0.1 to 10% by weight of spherical porous polyamide particles

a number-average particle diameter of 1 to 30 μm,

a BET specific surface area (according to DIN 66131) of 5 m ² / g or more,

an oil absorption capacity (boiled linseed oil) of 160 ml / 100 g or more,

a crystallinity (DSC measurement) of 40% or greater, and

Wt .-% each based on the total agent, a preferred embodiment of this invention. The terms "cleaner" and "detergent" are used synonymously in the context of this invention. To the In particular, the most preferred cleaners include hand dishwashing detergents and machine dishwashing detergents. Among the preferred cleaners include toilet cleaners or toilet cleaners, ie products for cleaning toilet bowls and urinals, which are preferably as powder, tablets, moldings or liquids, preferably gels offered. Also suitable are so-called toilet stones. In addition to other conventional ingredients such as surfactants they usually contain organic acids (eg, citric acid and / or lactic acid) or sodium hydrogen sulfate, amidosulfuric acid or phosphoric acid for the removal of lime deposits or so-called Urinsteinen. For the purposes of the present invention, cleaning detergents also include scent delivery systems comprising a container and particles for deodorizing and scenting the automatic dishwashing machine, these particles comprising perfume-containing, spherical porous polyamide particles which comprise

a number-average particle diameter of 1 to 30 μm,

a BET specific surface area (according to DIN 66131) of 5 m ² / g or more,

an oil absorption capacity (boiled linseed oil) of 160 ml / 100 g or more,

a crystallinity (DSC measurement) of 40% or greater, and

% By weight, based in each case on the total agent. In addition to fragrances, the spherical porous polyamide particles may also contain builders and / or surfactants, as well as other active substances, such as e.g. Dyes, antimicrobials, germicides, fungicides, antioxidants or corrosion inhibitors.

Thus, if the cleaning agent according to the invention is selected from the group of hand dishwashing detergents, machine dishwashing detergents, toilet cleaners or toilet cleaners, pipe cleaners or drain cleaners, universal or all-purpose cleaners, sanitary cleaners, oven cleaners or grill cleaners, metal cleaners Glass cleaner or window cleaner, the cleaning aid, the floor cleaning agent and the special cleaning agent, so is a preferred embodiment of the invention.

Also in the context of detergents, it is an advantage of the invention to provide a sustained release of liquids, e.g. Perfumes to allow from the contained Polyamidpartikien. This allows an often sought-after "slow-release" effect or "Iong-Iasting" effect. The cleaned surface, e.g. a floor, smells evenly over a longer period of time. Likewise, other incorporated liquids, such as e.g. Liquids released with antimicrobial agents, germicides, fungicides or other active substances are released. In addition, the polyamide particles, after deposition on the surface, e.g. a floor, bad odors adsorb.

In a preferred embodiment of the invention, a detergent according to the invention contains builders, preferably selected from the group of phosphates, carbonates and citrates, wherein the proportion by weight of these builders, based on the total agent, advantageously 1-60 wt .-%, more preferably 2 bis 50 wt .-%, preferably 5 to 40 wt .-% and in particular 10 to 30 Wt .-% is. In a further preferred embodiment of the invention, a cleaning agent according to the invention contains an anionic polymer, advantageously in amounts of 0.2 to 30% by weight, preferably 0.5 to 20% by weight and in particular 1 to 0% by weight. , Wt .-% based on the total agent. If the anionic polymer used is a copolymer comprising i) unsaturated carboxylic acid (s) ii) sulfonic acid group-containing monomer (s) iii) other nonionic monomer (s), this is again a preferred embodiment of the invention.

If the cleaning agent according to the invention contains nonionic surfactant and advantageously in amounts of 0.1 to 15 wt .-%, preferably 0.2 to 10 wt .-%, particularly preferably 0.5 to 8 wt .-% and in particular of 1, 0 to 6 wt .-%, wt .-% based on the total agent, so is a further preferred embodiment of the invention. If the cleaning agent according to the invention contains enzyme, preferably comprising amylase and / or protease, advantageously in amounts of from 0.1 to 12% by weight, preferably from 0.2 to 10% by weight and in particular from 0.5 to 8% by weight .-% contains, wt .-% based on the total agent, so is a further preferred embodiment of the invention.

If the cleaning agent according to the invention contains phosphonate, preferably selected from a) aminotrimethylenephosphonic acid (ATMP) and / or salts thereof; b) ethylenediaminetetra (methylenephosphonic acid) (EDTMP) and / or salts thereof; c) diethylenetriamine penta (methylenephosphonic acid) (DTPMP) and / or salts thereof; d) 1-hydroxyethane-1, 1-diphosphonic acid (HEDP) and / or salts thereof; e) 2-phosphonobutane-1,2,4-tricarboxylic acid (PBTC) and / or salts thereof; f) hexamethylenediaminetetra (methylenephosphonic acid) (HDTMP) and / or salts thereof; g) nitrilotri (methylenephosphonic acid) (NTMP) and / or salts thereof, there is a further preferred embodiment of the invention.

Contains the cleaning agent according to the invention bleaching agent, such as preferably percarbonate, advantageously in amounts of 5-30 wt .-%, in particular 10-20 wt .-% based on the total agent, so there is a further preferred embodiment of the invention.

If the cleaning agent according to the invention is in liquid or solid form, but preferably in solid form, in particular powdery or granular, advantageously in the form of a shaped body, in particular in tablet form, there is likewise a preferred embodiment of the invention. Is the cleaning agent according to the invention characterized by the fact that the spherical porous polyamide particles contained with a liquid, preferably a hydrophobic liquid, in particular comprising fragrances and / or surface-care, antibacterial and / or deodorants are loaded, so again is a preferred embodiment of the invention.

The cleaners according to the invention, in particular the dishwashing agents according to the invention, preferably contain washing or cleaning-active ingredients, particular preference being given to substances from the group of builders, surfactants, polymers, bleaches, bleach activators, enzymes, glass corrosion inhibitors, corrosion inhibitors, disintegration aids, fragrances and perfume carriers.

According to the invention, preference is given to detergents, in particular automatic dishwasher detergents, which contain from 1 to 35% by weight, preferably from 2.5 to 30% by weight, particularly preferably from 3.5 to 20% by weight and in particular from 5 to 15% by weight Bleaching agent, preferably sodium percarbonate. Enzymes can be used to increase the cleaning performance of cleaning agents. These include in particular proteases, amylases, lipases, hemicellulases, cellulases, perhydrolases or oxidoreductases, and preferably mixtures thereof. These enzymes are basically of natural origin; Starting from the natural molecules, improved variants are available for use in detergents, which are preferably used accordingly. Detergents contain enzymes preferably in total amounts of 1 × 10 ^-6 to 5 wt .-% based on active protein. The protein concentration can be determined by known methods, for example the BCA method or the biuret method. Preferred are one or more enzymes and / or enzyme preparations, preferably solid protease preparations and / or amylase preparations, in amounts of 0.1 to 5 wt .-%, preferably from 0.2 to 4.5 wt .-% and in particular from 0.4 to 4 wt .-%, in each case based on the total enzyme-containing agent, optionally used. The preparation of inventive cleaners, such as automatic dishwashing detergent, can be done in different ways. The compositions according to the invention can be present in solid or liquid form as well as a combination of solid and liquid forms. Powder, granules, extrudates or compactates, in particular tablets, are particularly suitable as firm supply forms. The liquid supply forms based on water and / or organic solvents may be thickened, in the form of gels. Hand dishwashing detergents which are preferred according to the invention can contain, in addition to the polyamide particles according to the invention, for example: a) surfactants, for example alkanesulfonates, alkyl ether sulfates, alkyl polyglucosides and / or cocoamidopropyl betaine, preferably in amounts of 5-45% by weight, in particular 10-40% by weight, b ) optionally acidulants, such as citric acid for pH adjustment, c) hydrotropes, such as cumene sulfonate, preferably in amounts of 0 to 15, in particular 0.01 to 10 wt .-%, d) backfatters, such as fatty acid amides preferably in amounts of 0 to 3 wt .-%, in particular 0.01 to 3 wt .-%, e) care components, such as Aloe vera extracts, preferably in amounts of 0 to <5Gew .-%, in particular 0.001 to <3 wt. %, f) fragrances, preferably in amounts of 0 to 3 wt .-%, in particular 0.01 to 2 wt .-%, g) optionally dyes h) Antibacterial agents, such as sodium benzoate or sodium salicylate, preferably in amounts of

0 to 3% by weight, especially 0.001 to 2% by weight, i) preservatives, e.g. in amounts of 0 to 1 wt .-%, in particular 0.001 to 0.5 wt .-%.

Machine dishwashing detergents preferred according to the invention can be used in addition to the inventive polyamide particles, e.g. Sodium phosphates, preferably pentasodium triphosphate, phosphonates, citrates, preferably sodium citrate, polycarboxylates, sodium metasilicates, soda, sodium bicarbonate, sodium disilicate, active chlorine, sodium perborate, bleach activator TAED, enzymes, preferably protease and amylase, low-foam nonionic surfactants, silver / glass protection and fragrances. Preferred machine dishwashing detergents may e.g. phosphate-based and highly alkaline or else e.g. phosphate-based and low-alkaline. Other preferred machine dishwashing detergents may be e.g. phosphate-free and low-alkaline.

Another object of the invention is a method for cleaning hard surface, using a cleaning agent according to the invention, as described above, in conjunction with water. Another advantage of the invention is that unloaded polyamide particles can also absorb fats and oils in wash water or on surfaces. Another object of the invention is the use of spherical porous polyamide particles, which

a number-average particle diameter of 1 to 30 μm,

a BET specific surface area (according to DIN 66131) of 5 m ² / g or more,

an oil absorption capacity (boiled linseed oil) of 160 ml / 100 g or more,

a crystallinity (DSC measurement) of 40% or greater, and

- Have a quotient of volume-average particle diameter to number-average particle diameter of 1, 0 to 1, 5, as a carrier for liquid active substances, in particular fragrances, in detergents.

a number-average particle diameter of 1 to 30 μm,

a BET specific surface area (according to DIN 66131) of 5 m ² / g or more,

an oil absorption capacity (boiled linseed oil) of 160 ml / 100 g or more,

a crystallinity (DSC measurement) of 40% or greater, and

- Have a quotient of volume-average particle diameter to number-average particle diameter of 1, 0 to 1, 5, for the adsorption of fats and oils in washing water or surfaces when using detergents. If this use is intended for the sustained release of liquid active substances, in particular fragrances, surface-care, antibacterial and / or deodorizing substances, in the cleaning of hard surfaces, in particular floors, glass, crockery, then a preferred embodiment of the invention is present. Examples:

The preparation of polyamide particles which can be used according to the invention will be described below.

98.0 g 7O ⁰ C heated phenol were 1450 and 2.5 g PPG 3000 added 10.0 g of ethylene glycol, 2.5 g PEG. To this mixture was added 2.0 g of polyamide 12 (molecular weight 14 kDa). The mixture was stirred at 7O ⁰ C for 24 hours to solve everything polyamide. The resulting solution contained 1, 74 wt .-% polyamide.

From 14.0 g of glycerol and 9.5 g of ethylene glycol, an alcohol mixture was prepared.

The two solutions were heated to 3O ⁰ C, and mixed with stirring for ten minutes and stirred (300 rev / min). Immediately after the completion of the stirring, a viscosity of 36 mPas (3O ⁰ C) could be measured. The mixture was heated for 24 hours at 3O ⁰ C. Approximately 90 minutes after completion of the stirring, the mixture became slightly cloudy, and the precipitation of the polyamide particles began.

After 24 hours, the precipitated particles were separated by filtration and washed with one liter of methanol. The washed particles were dried at 6O ⁰ C for 12 hours in vacuo.

The number average particle diameter was 15.1 μm; the volume average particle diameter was 15.4 μm; the particle size distribution index was 1, 02; the specific surface area was measured at 5.4 m ² / g; the porosity index was 15.1; the average pore diameter was 0.026 μm, the crystallinity was 69%.

The polyamide particles could easily be loaded with large amounts of perfume oil and yet remained free-flowing. The polyamide particles loaded with perfume oil could readily be converted into various detergents and cleaners, e.g. into powdery textile detergents, liquid softeners and liquid all-purpose cleaners.

Claims

claims:

1. washing or cleaning agent containing a) surfactant (s) and / or builders, b) 0.0001 to 10 wt .-% fragrances), c) 0.1 to 10 wt .-% spherical porous polyamide particles, which

a number-average particle diameter of 1 to 30 μm,

a BET specific surface area (according to DIN 66131) of 5 m ² / g or more,

an oil absorption capacity (boiled linseed oil) of 160 ml / 100 g or more,

a crystallinity (DSC measurement) of 40% or greater, and

% By weight, based in each case on the total agent.

2. Composition according to claim 1, characterized in that it is a textile detergent.

3. Composition according to claim 2, characterized in that it contains anionic, nonionic and / or cationic surfactants, in particular a mixture of anionic and nonionic surfactants, wherein the total agent is preferably 0.1 wt .-% to 50 wt .-%, in particular 10% by weight to

Contains 40 wt .-% surfactant.

4. Composition according to one of claims 2 or 3, characterized in that it contains alkylbenzenesulfonate, preferably linear alkylbenzenesulfonate (LAS), advantageously in amounts of 0.1 to 25 wt.%, More preferably 1 to 20 wt%, especially in amounts of 5-15 wt .-%, based on the total agent.

5. Composition according to one of claims 2 to 4, characterized in that it comprises nonionic surfactant, in particular alkoxylated fatty alcohol, in particular in amounts of 0.01 to 30 wt.%, Based on the total agent.

6. Composition according to one of claims 2 to 5, characterized in that it comprises enzymes, preferably amylase, pectinase, carbonic anhydrase, tannase, lipase, mannanase, protease and / or cellulase, advantageously in amounts of 0.0001 - 5% by weight. -%, relative to the total budget.

7. Composition according to one of claims 2 to 6, characterized in that a zeolite-containing builder system, preferably comprising zeolite in amounts of> 5 wt .-%, more preferably> 10 wt .-%, more preferably> 15% by weight, in particular > 20 wt .-%, wt .-% based on the total agent.

8. Composition according to one of claims 2 to 7, characterized in that it contains a soluble builder system, preferably comprising soda, silicate, citrate and / or polycarboxylates.

9. Composition according to one of claims 2 to 8, characterized in that it contains a phosphate-containing builder system, wherein phosphate is preferably present in amounts of 1-40 wt .-%, in particular 5-30 wt .-%, based on the entire means.

10. Composition according to one of claims 2 to 9, characterized in that it has a pH> 7.5, measured in a 5% solution of the composition in water at 2O ⁰ C.

11. Composition according to one of claims 2 to 10, characterized in that it is in liquid or solid form, but preferably in solid form, in particular powdery or granular, advantageously in the form of a shaped body, in particular in tablet form.

12. Composition according to one of claims 2 to 11, characterized in that the spherical porous polyamide particles contained are loaded with a liquid, preferably a hydrophobic liquid, in particular comprising fragrances.

13. textile washing process, characterized by the use of an agent according to any one of claims 2 to 12, wherein the washing temperature <6O ⁰ C, preferably <4O ⁰ C.

14. Use of spherical porous polyamide particles, which

a number-average particle diameter of 1 to 30 μm,

a BET specific surface area (according to DIN 66131) of 5 m ² / g or more,

an oil absorption capacity (boiled linseed oil) of 160 ml / 100 g or more,

a crystallinity (DSC measurement) of 40% or greater, and

15. Use according to claim 14 for the sustained release of liquid active substances, in particular fragrances, in textile washing.