Classifications

• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/16—Organic compounds
  • C11D3/37—Polymers
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/16—Organic compounds
  • C11D3/37—Polymers
  • C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • C11D3/3719—Polyamides or polyimides
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/16—Organic compounds
  • C11D3/26—Organic compounds containing nitrogen
  • C11D3/33—Amino carboxylic acids

Definitions

• the invention relates to combinations of iminodisuccinate derivatives and polymers with recurring succinyl units and those containing this combination Detergents or cleaning agents.
• EP-A-291 869 describes phosphate-free builders combinations made of polymer Polycarboxylate, aminoalkane polyphosphonate, 1-hydroxyethane-1,1-diphosphonate (HEDP) and zeolite, with certain weight ratios of the first three Connections of a synergistic prevention of fiber incrustations achieved becomes.
• DE-A-4 024 552 describes washing or cleaning agents which consist of a combination of 3-hydroxy-2,2'-iminodisuccinic acid, its soluble salts and Zeolite exist and a high complexing ability for alkaline earth and heavy metal ions should show.
• the agents contain 0.01% to 20% by weight of 3-hydroxy-2,2'-iminodibisuccinic acid, 5 to 50 wt .-% zeolite and 30% of one polymeric polycarboxylate.
• DE-A-311 440 are also phosphate-free Builder systems for detergents and cleaning agents known, which in addition to 15 to 60% by weight of zeolite and 1 to 30% by weight of 3-hydroxy-2,2'-iminodisuccinic acid or their salts and 1 to 20% by weight of amorphous and / or crystalline silicates contains.
• US-A-3 697 453 describes a phosphate-free washing and cleaning agent which as a builder contains iminodisuccinic acid and / or a water-soluble salt thereof.
• the proportion of iminodisuccinic acid in the detergent is 10 to 50% by weight.
• DE-A-3 739 610 describes the preparation of 3,3'-dihydroxy-2,2'-iminodisuccinic acid as well as their use as complexing agents for alkaline earth metals in washing and Detergents known.
• EP-A-454 651 and EP-A-612 842 describe the use of polyaspartic acid in builder systems of phosphate-free detergents in combination with Zeolites.
• Polyaspartic acid is used here as a cobuilder substitute for polymeric polycarboxylates used.
• US-A 5 318 726 describes 3-hydroxy-2,2'-iminodisuccinate as a complexing agent in Detergents.
• polymers to be used according to the invention are the corresponding ones free acids, their salts but also derivatives of acids, especially anhydrides, Understood amides and esters.
• the repeating unit is located B1, based on the sum of the units B1 and A1, at least 50%, in particular at least 70%.
• the polyaspartic acids according to the invention also include those which the chosen reaction conditions compared to the corresponding starting compounds were chemically modified.
• the average molecular weight (Mw) can vary within a wide range move, with polyaspartic acids with molecular weights between 500 and 100,000 g / mol can be used, but 1,000 to 50,000 g / mol are preferred, or even better 1,000 to 30,000 g / mol.
• the molecular weight is determined by gel permeation chromatography (GPC) on Shodex OH-PAK as the stationary phase and with 0.15 M NaCl + 200 ppm NaN 3 as the eluent solution. Calibration can best be carried out with pure polyaspartic acid, for example from Sigma, whose molecular weight was determined by an absolute measurement method, for example LALLS.
• the invention further relates to detergents and / or cleaning agents which, in particular as a builder, the combination of an iminodisuccinate derivative according to the invention and a polymer with recurring succinyl units contains.
• the weight ratio of polymers with recurring succinyl units the iminodisuccinate derivative is preferably between 1: 6 and 2: 1.
• the polymers to be used according to the invention with recurring succinyl units are essentially polyaspartic acids in a preferred embodiment.
• the polymers can be prepared by known processes, for example according to US-A 4 839 461, US-A 5 371 180, US-A 5 288 783, J. Org. Chem., 24, p 1662-1666 (1959) and J. Org. Chem., 26, 1084 (1961).
• Phosphate-free washing and cleaning agents which the builder system according to the invention contain, show a good primary washing ability and an improved Secondary washing ability combined with less incrustation and one increased whiteness of the fabric.
• the invention accordingly relates also a phosphate-free washing and cleaning agent that works as builders preferably 0.5 to 40% by weight of an iminodisuccinate derivative of structure A and preferably 0.5 to 25% by weight of a recurring polymer Contains succinyl units.
• zeolite and / or amorphous can optionally be used and / or crystalline alkali silicates may be included.
• the builder system according to the invention shows a very good ability to complex for alkaline earth ions and heavy metal ions that interfere with the washing process as well as a high dispersibility for dirt particles and a growth-inhibiting Effect on already formed alkaline earth salt microcrystallites (crystal nuclei). These properties also have a positive effect on the stabilization of Bleach and enzymes.
• the builder system shows a light biological Degradability as there are only immodisuccinate derivatives besides inorganic components structure A and polyaspartic acids, which have good biodegradability according to the OECD guide lines for testing chemicals (1981), contains.
• the detergents and cleaning agents according to the invention can still be used usual builders and complexing agents, for example phosphonates, which are preferred polycarboxylic acids used in the form of their sodium salts, such as adipic acid, Succinic acid, glutaric acid, aminocarboxylic acids, nitrilotriacetic acid (NTA), ethylenediaminetetraacetic acid (EDTA), provided that such use from ecological There is no reason for complaint, as well as mixtures of these and (co) polymers Contain polycarboxylic acids or polycarboxylates, but they are not necessary to improve the secondary washing ability. As part of this The invention can therefore also be dispensed with.
• phosphonates which are preferred polycarboxylic acids used in the form of their sodium salts, such as adipic acid, Succinic acid, glutaric acid, aminocarboxylic acids, nitrilotriacetic acid (NTA), ethylenediaminetetraacetic acid (EDTA), provided that such
• polyhydroxycarboxylic acid salts such as citric acid or citrate supports the removal of bleachable stains. Therefore, according to the invention Detergents and cleaning agents, if necessary up to 20% by weight sodium citrate, contain in particular 0.5 to 15 wt .-% sodium citrate.
• the soluble salts are preferably used. These are the ones those as cations from the group of ammonium and alkali metal ions contain. One, two, three or all four carboxylic acid groups are in the salt form.
• polymers to be used according to the invention are preferably water-soluble alkali metal salts or those partially hydrolyzed with alkali metal Use polysuccinimides.
• the zeolites optionally used come in the usual hydrated, fine crystalline form for use. Their water content is preferably between 19 and 22% by weight. They have practically no particles larger than 30 ⁇ m and preferably consist of at least 80% particles smaller than 10 ⁇ m. Your calcium binding capacity, which according to the German Patent application 2,412,837 is determined, is in the range of 100 to 200 mg CaO / g.
• the zeolite NaA is particularly suitable, as is the zeolite NaX as well as mixtures of NaA and NaX. Quantities and weight ratios, which relate to the builder zeolite are - within the scope of this invention not specified otherwise - based on anhydrous active substance.
• the solid silicates can be amorphous and / or crystalline. They can be used as powder or granules.
• Preferred alkali silicates are the sodium silicates, especially the amorphous sodium silicates, with a Na 2 O: SiO 2 molar ratio of 1: 2 to 1: 2.8.
• Such amorphous alkali silicates are commercially available, for example, under the name Portil (Henkel).
• Crystalline sheet silicates of the formula (I) NaMSixO 2 + 1xyH 2 O, in which M represents sodium, x assumes the values 2 or 3, and y a number, are preferably used as crystalline silicates, which may be present alone or in a mixture with amorphous silicates is from 0 to 20. Both ⁇ - and ⁇ -sodium disilicates Na 2 Si 2 O 5 are particularly preferred.
• the layered silicates SKS 6 and SKS 7 from Hoechst should also be mentioned here, for example.
• the builders combinations according to the invention can also contain sodium carbonate as alkali reserve.
• the sodium carbonate content can preferably be reduced compared to conventional phosphate-free detergents, since the constituents according to the invention (polyaspartic acid / iminodisuccinic acid derivatives) themselves have a buffering action and therefore also form a certain alkali reserve.
• the combinations according to the invention can also contain further constituents, for example inorganic, especially neutral reacting salts.
• inorganic especially neutral reacting salts.
• liquid to wax-like components for example silicone oils and paraffin oils, preferably but are sprayed with nonionic surfactants.
• the agents according to the invention can be known additives commonly used in detergents and cleaning agents, for example Surfactants, bleaches and bleach activators, alkaline in water Salts, solubility improvers such as conventional hydrotropes or polyalkylene glycols, for example polyethylene glycols, foam inhibitors, optical Brighteners, enzymes, enzyme stabilizers, small amounts of neutral filling salts as well as dyes and fragrances, opacifiers or pearlescent agents.
• surfactants for example Surfactants, bleaches and bleach activators, alkaline in water Salts, solubility improvers such as conventional hydrotropes or polyalkylene glycols, for example polyethylene glycols, foam inhibitors, optical Brighteners, enzymes, enzyme stabilizers, small amounts of neutral filling salts as well as dyes and fragrances, opacifiers or pearlescent agents.
• the content of the agent in anionic and nonionic surfactants including Soap is preferably 10 to 35% by weight, advantageously 12 to 28% by weight and in particular 15 to 25% by weight.
• Preferred surfactants of the sulfonate type are C 5 -C 13 alkylbenzenesulfonates, olefin sulfonates, ie mixtures of alkene and hydroxyalkanesulfonates and disulfonates such as are obtained, for example, from C 12 -C 18 monoolefins with a terminal or internal double bond by sulfonating with gaseous Sulfur trioxide and subsequent alkaline or acidic hydrolysis of the sulfonation products is considered.
• alkanesulfonates obtained from C 12 -C 18 alkanes, for example by sulfochlorination or sulfoxidation with subsequent hydrolysis or neutralization.
• esters of ⁇ -sulfofatty acids are also suitable, for example the ⁇ -sulfonated methyl esters of hydrogenated coconut, palm kernel or tallow fatty acids.
• esters of ⁇ -sulfo fatty acids which are produced by ⁇ -sulfonation of the methyl esters of fatty acids of plant and / or animal origin with 8 to 20 C atoms in the fatty acid molecule and subsequent neutralization to form water-soluble mono-salts.
• ⁇ -sulfonated esters of hydrogenated coconut, palm kernel or tallow fatty acids, and sulfonation products of unsaturated fatty acids, for example oleic acid are also present in small amounts, preferably in amounts not above about 2 to 3% by weight could be.
• ⁇ -sulfofatty acid alkyl esters are preferred which have an alkyl chain with no more than 4 carbon atoms in the ester group, for example methyl esters, ethyl esters, propyl esters and butyl esters.
• MES methyl esters of ⁇ -sulfofatty acids
• anionic surfactants are the ⁇ -sulfofatty acids obtainable by ester cleavage of the ⁇ -sulfofatty acid alkyl esters or their di-salts.
• the mono-salts of the ⁇ -sulfofatty acid alkyl esters are obtained in their industrial production as an aqueous mixture with limited amounts of di-salts.
• the di-salt content of such surfactants is usually below 50% by weight of the anionic surfactant mixture, for example up to about 30% by weight. Mixtures of mono-salts and di-salts with further surfactants, for example with alkylbenzenesulfonate or alkyl sulfates, are also preferred.
• Suitable anionic surfactants are sulfonated fatty acid glycerol esters.
• Fatty acid glycerol esters are the mono-, di- and triesters as well as their mixtures understand how they are produced by esterifying glycerol with 1 to 3 Mol of fatty acid or in the reaction of triglycerides with 0.3 to 2 mol Glycerin can be obtained.
• Preferred sulfonated fatty acid glycerol esters are included the sulfonation products of saturated fatty acids with 6 to 22 carbon atoms, for example caproic acid, caprylic acid, capric acid, myristic acid, Lauric acid, palmitic acid, steraric acid or behenic acid.
• Fats and oils i.e. natural mixtures of different fatty acid glycerol esters out, so it is necessary to in the feeds before sulfonation to be largely saturated with hydrogen in a manner known per se, i.e. on Harden iodine numbers less than 5, advantageously less than 2.
• suitable feedstocks are palm oil, palm kernel oil, palm stearin, olive oil, rape oil, Coriander oil, sunflower oil, cottonseed oil, peanut oil, linseed oil, or lard oil Lard. Because of their high natural content of saturated However, fatty acids have proven particularly beneficial, from coconut oil, Going out of palm kernel oil or beef tallow.
• the sulfation of saturated fatty acids with 6 to 22 carbon atoms or mixtures of fatty acid glycerol esters with iodine numbers less than 5, which contain fatty acids with 6 to 22 carbon atoms, is preferably carried out by reaction with gaseous sulfur trioxide and subsequent neutralization with aqueous bases, as used in the international Patent application WO 91/9009 is specified.
• the sulfonation products are a complex mixture, the mono-, di- and Triglyceride sulfonates with ⁇ and / or internal sulfonic acid grouping contains.
• As by-products sulfonated fatty acid salts, glyceride sulfates, Glycerin sulfates, glycerin and soaps. If you go with the sulfation of saturated fatty acids or hardened fatty acid glycerol ester mixtures, so can the proportion of ⁇ -sulfonated fatty acid disalts depending on the procedure can be up to about 60% by weight.
• Suitable surfactants of the sulfate type are the sulfuric acid monoesters from primary alcohols of natural and synthetic origin.
• Preferred alk (en) yl sulfates are the sulfuric acid half-esters of the C 12 -C 18 fatty alcohols, for example from coconut oil alcohol, tallow fatty alcohol, lauryl, myristyl, cetyl or stearyl alcohol or the C 10 -C 20 oxa alcohols, and those secondary alcohols of this chain length .
• alk (en) yl sulfates of the chain length mentioned which contain a synthetic, petrochemical-based straight-chain alkyl radical which have a degradation behavior analogous to that of the adequate compounds based on oleochemical raw materials.
• C 16 -C 18 alk (en) yl sulfates are particularly preferred from the point of view of washing technology. It can also be particularly advantageous, and particularly advantageous for machine washing agents, to use C 16 -C 18 alk (en) yl sulfates in combination with lower melting anionic surfactants and in particular with those anionic surfactants which have a lower Krafft point and relatively low ones Washing temperatures of, for example, room temperature to 40 ° C. show a low tendency to crystallize.
• the agents therefore contain mixtures of short-chain and long-chain fatty alkyl sulfates, preferably mixtures of C 12 -C 14 fatty alkyl sulfates or C 12 -C 16 fatty alkyl sulfates with C 16 -C 18 fatty alkyl sulfates.
• not only saturated alkyl sulfates but also unsaturated alkenyl sulfates with an alkenyl chain length of preferably C 16 -C 22 are used.
• Mixtures of saturated sulfated fatty alcohols predominantly consisting of C 16 and unsaturated sulfated fatty alcohols predominantly consisting of C 18 are particularly preferred.
• Weight ratios of alkyl sulfates to alkenyl sulfates from 10: 1 to 1: 2 and in particular from about 5: 1 to 1: 1 are preferred.
• the sulfuric acid monoesters of the straight-chain or branched C 7 -C 21 alcohols ethoxylated with 1 to 9 mol of ethylene oxide such as 2-methyl-branched C 9 -C 11 alcohols with an average of 3.5 mol of ethylene oxide (EO) or C 12 - C 18 fatty alcohols with 2 to 4 EO are suitable. Because of their high foaming behavior, they are used in detergents only in relatively small amounts, for example in amounts of 1 to 5% by weight.
• Preferred anionic surfactants are also the salts of alkylsulfosuccinic acid, which are also referred to as sulfosuccinates or as sulfosuccinic acid esters and which are monoesters and / or diesters of sulfosuccinic acid with alcohols, preferably fatty alcohols and in particular ethoxylated fatty alcohols.
• Preferred sulfosuccinates contain C 8 -C 18 fatty alcohol residues or mixtures thereof.
• Particularly preferred sulfosuccinates contain a fatty alcohol residue, which is derived from ethoxylated fatty alcohols, which in themselves are nonionic surfactants (description see below).
• sulfosuccinates the fatty alcohol residues of which are derived from ethoxylated fatty alcohols with a narrow homolog distribution, are particularly preferred. It is also possible to use alk (en) ylsuccinic acid with preferably 8 to 18 carbon atoms in the alk (en) yl chain or salts thereof.
• Preferred granular detergents or cleaning agents contain as anionic Surfactants alkyl benzene sulfonates and / or alkyl sulfate, preferably fatty alkyl sulfate, and / or sulfated fatty acid glycerol esters, the weight ratio being sulfated Fatty acid glycerol esters to alkyl benzene sulfonate and / or alkyl sulfate 1: 9 to 4: 1 and is in particular 2: 5 to 2: 1.
• Suitable anionic surfactants are, in particular, soaps, preferably in amounts of 0.2 to 8 and in particular 0.5 to 5% by weight.
• Saturated fatty acid soaps are suitable, such as the salts of lauric acid, myristic acid, palmitic acid or stearic acid, and in particular soap mixtures derived from natural fatty acids, for example coconut, palm kernel or tallow fatty acids.
• soap mixtures are preferred which are composed of 50 to 100% by weight of saturated C 12 -C 18 fatty acid soaps and 0 to 50% by weight of oleic acid soap.
• the anionic surfactants can be in the form of their sodium, potassium or ammonium salts as well as soluble salts of organic bases, such as mono-, di- or Triethanolamine are present.
• the anionic surfactants are preferably in the form their sodium or potassium salts, especially in the form of the sodium salts.
• the granular washing or Cleaning agents in addition to the anionic surfactants also non-ionic Surfactants, preferably in amounts of 1 to 15% by weight, especially in amounts from 2 to 12% by weight.
• the nonionic surfactants used are preferably alkoxylated, advantageously liquid ethoxylated, in particular primary alcohols having preferably 9 to 18 carbon atoms and an average of 1 to 12 moles of ethylene oxide (EO) per mole of alcohol, in which the alcohol radical is branched linearly or preferably in the 2-position methyl may, or may contain linear and methyl-branched radicals in the mixture, as are usually present in oxo alcohol radicals.
• alcohol ethoxylates with linear residues from alcohols of native origin with 12 to 18 carbon atoms, for example from coconut oil, tallow oil or oleyl alcohol, and an average of 2 to 8 EO per mole of alcohol are preferred.
• the preferred ethoxylated alcohols include, for example, C 12 -C 14 alcohols with 3 EO or 4 EO, C 9 -C 11 alcohol with 7 EO, C 13 -C 15 alcohols with 3 EO, 5 EO, 7 EO or 8 EO, C 12 -C 18 alcohols with 3 EO, 5 EO or 7 EO and mixtures thereof, such as mixtures of C 12 -C 14 alcohol with 3 EO and C 12 -C 18 alcohol with 5 EO.
• the degrees of ethoxylation given represent statistical averages, which can be an integer or a fraction for a specific product.
• Preferred alcohol ethoxylates have a narrow homolog distribution.
• Alkyl glycosides can also be used as further nonionic surfactants become.
• sodium perborate tetrahydrate and sodium perborate monohydrate are of particular importance.
• Further bleaching agents that can be used are, for example, sodium percarbonate, peroxypyrophosphates, citrate perhydrates and H 2 O 2 -producing peracid salts or peracids, such as perbenzoates, peroxophthalates, diperazelaic acid or diperdodecanedioic acid.
• the bleaching agent content of the agents is preferably 5 to 25% by weight and in particular 10 to 20% by weight, advantageously using perborate monohydrate.
• bleach activators can be incorporated into the preparations.
• these are N-acyl or O-acyl compounds which form organic peracids with H 2 O 2 , preferably N, N'-tetraacylated diamines, furthermore carboxylic acid anhydrides and esters of polyols such as glucose pentaacetate.
• the bleach activators contain bleach activators in the usual range, preferably between 1 and 10% by weight and in particular between 3 and 8% by weight.
• Particularly preferred bleach activators are N, N, N ', N'-tetraacetylethylene diamine and 1,5-diacetyl-2,4-dioxo-hexahydro-1,3,5-triazine.
• Graying inhibitors have the task of removing the dirt detached from the fiber to keep suspended in the fleet, thus preventing graying.
• water-soluble colloids mostly organic in nature, for example water soluble salts of polymeric carboxylic acids, glue, gelatin, salts of Ether carboxylic acids or ether sulfonic acids of starch or cellulose or salts of acidic sulfuric acid esters of cellulose or starch.
• water soluble, polyamides containing acidic groups are suitable for this purpose.
• Soluble starch preparations and others other than those mentioned above can also be used Use starch products, e.g. degraded starch, aldehyde starches, etc.
• Polyvinyl pyrrolidone is useful.
• cellulose ethers such as Carboxymethyl cellulose, methyl cellulose, hydroxyalkyl cellulose and mixed ethers, such as methylhydroxyethyl cellulose, methylhydroxyporpyl cellulose, methyl carboxymethyl cellulose and their mixtures used, for example in amounts of 0.1 to 5 wt .-%, based on the agent used.
• the foaming power of the surfactants can be increased or decreased by combining suitable types of surfactants; a reduction can also be achieved by adding non-surfactant-like substances.
• Suitable foam inhibitors are, for example, soaps of natural or synthetic origin, which have a high proportion of C 18 -C 24 fatty acids.
• Suitable non-surfactant-like foam inhibitors are, for example, organopolysiloxanes and their mixtures with microfine, optionally silanized silica, and paraffins, waxes, microcrystalline waxes and their mixtures with silanized silica or bistearylethylenediamide.
• foam inhibitors are also used with advantages, for example those made of silicones, paraffins or waxes.
• the foam inhibitors in particular silicone or paraffin-containing foam inhibitors, are preferably bound to a granular, water-soluble or dispersible carrier substance.
• Enzymes come from the class of proteases, lipasses, amylases, Cellulases or their mixtures in question. Are particularly well suited Strains of bacteria or fungi such as Bacillus subtilis, Bacillus licheniformis and Streptomyces griseus enzymatic active ingredients obtained. Preferably be Subtilisin-type proteases, and in particular proteases derived from Bacillus lentus won, used. Enzyme mixtures are, for example, from Protease and amylase or protease and lipase or protease and cellulase or Protease, amylase and lipase or protease, lipase and cellulase, especially Interest.
• Oxidases have also proven to be suitable in some cases.
• the enzymes can be adsorbed on carrier substances and / or in coating substances embedded to protect them against premature decomposition.
• the share of Enzymes, enzyme mixtures or enzyme granules can for example be about 0.2 to be about 2% by weight.
• the agents can contain enzyme stabilizers.
• enzyme stabilizers For example, 0.5 to 1% by weight sodium formate can be used. It is also possible to use proteases which are stabilized with soluble calcium salts and a calcium content of preferably about 1.2% by weight, based on the enzyme.
• boron compounds for example boric acid, boron oxide, borax and other alkali metal borates, such as the salts of orthoboric acid (H 3 BO 3 ), metaboric acid (HBO 2 ) and pyrobic acid (tetraboric acid H 2 B 4 O 7 ), is particularly advantageous.
• the agents can be derivatives of diaminostilbene disulfonic acid as optical brighteners or their alkali metal salts. Suitable are e.g. Salts of 4,4'-bis (2-anilino-4-morpholino-1,3,5-triazinyl-6-amino) stilbene-2,2'-disulfonic acid or compounds of the same structure, which instead of the morpholino group Diethanolamino group, a methylamino group, anilino group or a 2-methoxyethylamino group wear.
• Brighteners of the type of substituted diphenylstyryl e.g.
• the granular washing or cleaning agents according to the invention can be a Have bulk density between about 300 and 1100 g / l. Thereby granules preferred, which has a bulk density above 450 g / l, in particular between 500 and have 1100 g / l.
• Detergents or cleaning agents can be used in a conventional manner, for example by mixing, granulating, extruding and / or spray drying one aqueous slurry and optionally subsequent admixture of temperature-sensitive components are manufactured.
• washing or Detergents can use separately manufactured builders in the form of a spray-dried or granulated compound as an admixture other granular components of the detergent or cleaning agent be used. It is also possible to use the builders and complexing agents to be incorporated individually into the funds in the usual manner and in any order.
• a stock solution is made from the liquid components.
• the Powdery components are weighed for each wash attempt and the Stock solution added at the beginning of the washing process.
• the graying including color graying
• inorganic and organic incrustation measured.
• organic incrustation by extraction with Determined methanol.
• the dirt test fabric specimens were washed once, dried and opened of the left side not to be measured carefully ironed smooth.
• the cleaning effect was based on DIN 44 983-T21 point 4.1 by measuring the Remission on the washed dirty tissues determined. From the total The individual remission values measured were the mean and the corresponding confidence interval for 95% statistical security is calculated.

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• 1995
  • 1995-07-31 DE DE19528059A patent/DE19528059A1/de not_active Withdrawn
• 1996
  • 1996-05-24 US US08/653,000 patent/US5977053A/en not_active Expired - Fee Related
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  • 1996-07-18 ES ES96111591T patent/ES2208709T3/es not_active Expired - Lifetime
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  • 1996-07-29 JP JP8214969A patent/JPH0948995A/ja active Pending
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