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
  • C11D3/39—Organic or inorganic per-compounds
  • C11D3/3942—Inorganic per-compounds
• • 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
  • C11D3/39—Organic or inorganic per-compounds
  • C11D3/3902—Organic or inorganic per-compounds combined with specific additives
  • C11D3/3905—Bleach activators or bleach catalysts
  • C11D3/3907—Organic compounds
  • C11D3/3917—Nitrogen-containing compounds
  • C11D3/3925—Nitriles; Isocyanates or quarternary ammonium nitriles

Definitions

• the invention relates to the use of quaternary acetonitrile compounds as activators for in particular detergents containing inorganic peroxygen compounds.
• Inorganic peroxygen compounds especially hydrogen peroxide and solid peroxygen compounds, which dissolve in water to release hydrogen peroxide, such as sodium perborate and sodium carbonate perhydrate, have long been used as oxidizing agents for disinfection and bleaching purposes.
• the oxidizing effect of these substances in dilute solutions depends strongly on the temperature; For example, with H 2 O 2 or perborate in alkaline bleaching liquors, sufficiently quick bleaching of soiled textiles can only be achieved at temperatures above about 80 ° C.
• the oxidation effect of the inorganic peroxygen compounds can be improved by the addition of so-called bleach activators, for which numerous suggestions, especially from the substance classes of the N- or O-acyl compounds, for example multiply acylated alkylenediamines, in particular tetraacetylethylenediamine, acylated glycolurils, in particular tetraacetylglycoluril, N- acylated hydantoins, hydrazides, triazoles, Hydrotriazine, urazoles, diketopiperazines, sulfuryl amides and cyanurates, also carboxylic anhydrides, especially phthalic anhydride, Carbonklareester, especially sodium nonanoyloxybenzenesulfonate, Natriumisononanoyloxybenzolsulfonat and acylated sugar derivatives, such as pentaacetylglucose, are known in the literature. By adding these substances, the
• the object of the invention was therefore to provide new activators for the production of To provide detergents that work at low temperatures for improved removal lead to bleachable soiling without damaging the fabric.
• the invention relates to the use of quaternary acetonitrile compounds of the formula (I) , in which R 1 , R 2 and R 3 independently of one another are an alkyl, alkenyl or aryl group having 1 to 18 carbon atoms and the groups R 2 and R 3 can also be part of a heterocycle including the N atom and optionally further hetero atoms, and X is a charge-balancing anion, as activators for detergents, in particular for those which contain inorganic peroxygen compounds.
• the quaternary acetonitrile compounds preferably N-methylmorpholinium acetonitrile methosulfate
• the quaternary acetonitrile compounds are able to, even at low temperatures in the Cold wash range (about 20 to 35 ° C) inorganic peroxygen compounds such as To activate alkali perborates or percarbonates, so that these are a variety of very different Soiling that is accessible to bleach is practically completely decolorized.
• the Activators can be added directly to liquid detergents, in the case of solid detergents, it is advisable to include the activators in the wash liquor, for example as aqueous preparations give.
• the invention includes the finding that the effect of conventional bleach activators such as TAED and clearly exceeds the use of hydrogen peroxide required, in many cases even undesirable.
• the quaternary acetonitrile compounds can be prepared by known processes or based on these, as described, for example, by Abraham in Progr.Phys.Org.Chem. 11 , 1 (1974) or by Arnett in J.Am.Chem.Soc. 102, 5829 (1980) . It is particularly preferred to use compounds of the formula (I) in which R 2 and R 3 form a morpholinium ring, including the quaternary N atom.
• R 1 is preferably an alkyl group with 1 to 3 carbon atoms, in particular a methyl group.
• the anions X- include in particular the halides such as chloride, fluoride, iodide and bromide, nitrate, hydroxide, hexafluorophosphate, metho- and ethosulfate, chlorate, perchlorate, and the anions of carboxylic acids such as formate, acetate, benzoate or citrate. Preference is given to using compounds of the formula (I) in which X is methosulfate.
• the quaternary acetonitrile compounds can be liquid detergents in amounts of 0.1 to 10, preferably 0.5 to 5 and in particular 1 to 3% by weight, based on the detergents, are added. It is also possible to prepare aqueous preparations of the quaternary acetonitrile compounds which then as additives together with solid or liquid detergents in the wash liquor in such Amounts are added such that an application concentration of 0.1 to 10 wt .-% - based on the detergents - results.
• the detergents can be further typical Ingredients such as builders, enzymes, enzyme stabilizers, optical brighteners, thickeners, Soil repellants, foam inhibitors, solubilizers, inorganic salts and fragrance and Have dyes.
• sodium perborate tetrahydrate and sodium perborate monohydrate are of particular importance.
• Further bleaching agents are, for example, peroxy carbonate, citrate perhydrates and H 2 O 2 -producing peracid salts of peracids such as perbenzoates, peroxyphthalates or diperoxydodecanedioic acid. They are usually used in amounts of 8 to 25% by weight.
• the use of sodium perborate monohydrate in amounts of 10 to 20% by weight and in particular 10 to 15% by weight is preferred. Due to its ability to bind free water with the formation of the tetrahydrate, it contributes to increasing the stability of the agent.
• Nonionic, anionic, cationic and / or amphoteric or amphoteric surfactants can be present as surface-active substances , the proportion of these agents usually being about 50 to 99 and preferably 70 to 90% by weight.
• anionic surfactants are soaps, alkylbenzene sulfonates, alkane sulfonates, olefin sulfonates, alkyl ether sulfonates, glycerol ether sulfonates, ⁇ -methyl ester sulfonates, sulfo fatty acids, alkyl sulfates, fatty alcohol ether sulfates, glycerol ether sulfates, hydroxymixed ether sulfates, mono (sulfide) sulfate, monoglyl sulfate fatty acids, monoglyl sulfate fatty acids, monoglyl sulfate fatty acids, monoglyl s
• anionic surfactants contain polyglycol ether chains, they can have a conventional, but preferably a narrow, homolog distribution.
• Typical examples of nonionic surfactants are fatty alcohol polyglycol ethers, alkylphenol polyglycol ethers, fatty acid polyglycol esters, fatty acid amide polyglycol ethers, fatty amine polyglycol ethers, alkoxylated triglycerides, mixed ethers or mixed formals, optionally partially oxidized alk (en) yl oligoglycosides or especially glucoramides, , Polyol fatty acid esters, sugar esters, sorbitan esters, polysorbates and amine oxides.
• nonionic surfactants contain polyglycol ether chains, they can have a conventional, but preferably a narrow, homolog distribution.
• Typical examples of cationic surfactants are quaternary ammonium compounds and ester quats, in particular quaternized fatty acid trialkanolamine ester salts.
• Typical examples of amphoteric or zwittenionic surfactants are alkyl betaines, alkyl amido betaines, aminopropionates, aminoglycinates, imidazolinium betaines and sulfobetaines. The surfactants mentioned are exclusively known compounds.
• Suitable builders are zeolites, phyllosilicates, phosphates and ethylenediaminetetraacetic acid, nitrilotriacetic acid, citric acid and inorganic phosphonic acids.
• the latter preferably include polyvinylpyrrolidone, urethanes and the salts of polymeric polycarboxylates, for example homopolymeric or copolymeric polyacrylates, polymethacrylates and in particular copolymers of acrylic acid with maleic acid, preferably those composed of 50 to 10% maleic acid.
• the relative molecular weight of the homopolymers is generally between 1000 and 100000, that of the copolymers between 2000 and 200000, preferably between 50,000 to 120,000, based on the free acid.
• Water-soluble polyacrylates which are crosslinked, for example, with about 1% of a polyallyl ether of sucrose and which have a relative molecular weight above 1,000,000 are also particularly suitable. Examples of these are polymers obtainable under the name Carbopol® 940 and 941.
• the crosslinked polyacrylates are preferably used in amounts of not more than 1% by weight, particularly preferably in amounts of 0.2 to 0.7% by weight.
• Suitable enzymes are those from the class of proteases, lipase, amylases, cellulases or mixtures thereof. Enzymes obtained from bacterial strains or fungi such as Bacillus subtilis, Bacillus lichenformis and Striptomyces griseus are particularly suitable. Proteases of the subtilisin type and in particular proteases which are obtained from Bacillus lentus are preferably used. Their proportion can be about 0.2 to 2% by weight. The enzymes can be adsorbed on carriers or embedded in coating substances to protect them against premature decomposition. In addition to mono- and polyfunctional alcohols and phosphonates, the agents can contain further enzyme stabilizers . For example, 0.5 to 1% by weight sodium formate can be used.
• 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.
• Suitable foam inhibitors contain, for example, known organopolysiloxanes, paraffins or waxes.
• the activator MMA has a stronger color brightening, i.e. leads to better stain removal than hydrogen peroxide or TAED.

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• 1998
  • 1998-07-23 US US09/121,263 patent/US6211130B1/en not_active Expired - Fee Related
  • 1998-08-13 EP EP98115223A patent/EP0897974A1/fr not_active Ceased

Patent Citations (7)

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