FI93226C - Emollient and bleaching detergent compositions containing an emollient amide - Google Patents

Abstract

Bleaching detergent compositions containing a peroxyacid bleaching compound and a narrowly defined amide softening agent are disclosed. The compositions of the invention are capable of providing various fabric care benefits, inclusive of softeness, independently from and in presence of peroxyacid bleaching agents.

Description

93226

Emollient and bleaching detergent compositions containing an emollient amide

The invention relates to emollient detergent compositions comprising a peroxyacid-bleach system or a system capable of producing peroxyacid in situ, and a narrowly defined emollient amide.

These compositions, in addition to having good cleaning properties, have excellent softening properties throughout the wash, and also have beneficial fabric care effects such as anti-static, anti-wrinkle, ironing ease, color stability, regardless of the peroxyacid bleaches and their acid.

15 Developers of fabric treatment compositions have long sought ways to simultaneously wash and soften fabrics. Various proposed solutions include methods using clay plasticizers or amine materials, or combinations of both, as described, for example, in German Patents 2,964,114, 285,716, 2,439,541 and 2,334,899 and EP Patents 0,026,528 and 0 028 432.

Amines have been used in combination with soaps (GB patent 1,514,276), fatty acids 25 (EP application 0 133 804) and phosphate esters (EP application 0 168 889) as active plasticizers throughout the wash.

However, it has been found that the presence of peroxyacid bleach compounds in emollient detergent compositions is often detrimental to the stability of the emollient amine. As a result, the use of peroxyacid bleaches, including the use of peroxyacid activator combinations, was often limited in amount in such compositions, and therefore optimal performance could not be achieved. In addition, the amine plasticizer is not very compatible with peroxyacids, and is deactivated as a plasticizer.

Carboxamides have been used as antistatic agents in industrial textile processing (German Patent No. 5,043,618) and N-alkyl isostearamides have been used as antistatic agents in laundry applications (FR Patent 2,531,447).

JP Patent Publication J5 8144-175-A discloses the industrial treatment of textiles with a cationic softening aid-10 and ethoxylated fatty acid amides.

Alkoxylated fatty amides are known as surfactants (EP 0 000 595) and viscosity regulators (EP 0 112 719)

German patent application 1,959,007 discloses the use of monoethanolamide as a softening aid. German patent application 3 310 417 discloses the use of fatty acids in diethanolamides as antistatic / anti-yellowing agents.

It is an object of the present invention to provide detergent compositions having excellent cleaning, softening and fabric care properties.

Another object of the invention is to formulate peroxyacid-containing detergent compositions which have the ability to simultaneously provide beneficial cleansing and emollient effects.

It has now been found that the above objectives can be achieved by using certain amides as softening aids, thus avoiding interaction with peroxyacid bleaches and thus providing excellent results in both fabric cleaning and softening, as well as other "fabric care" beneficial effects.

The invention relates to detergent compositions having fabric-maintaining, all-washing beneficial effects, including softness, comprising 93226 3 surfactants, a nitrogen-containing fabric softener, a bleach, and, if desired, cleaning additives, and characterized by detergent compositions. that they contain an anionic surfactant, a peroxyacid bleaching system or a system capable of producing peroxyacid in situ, and a fabric softener which is an amide of formula i 10 N - C - R_ (i) / Il 3 0

B

wherein Rx and R2 are independently C1-4alkyl, hydroxyalkyl, aryl or alkylaryl, or an optionally alkyl-substituted heterocyclic group, R3 is hydrogen or C1-22-alk (en) yl, aryl or alkylaryl, or optionally an alkyl-substituted heterocyclic group or O-R4, wherein R4 is a C1-4 alkyl, aryl or alkylaryl group or an optionally alkyl-substituted heterocyclic group; R 3 and R 4 optionally contain functional groups selected from hydroxy, ester, ether, amide and amine groups, wherein R 3, R 2 and R a each contain 0-10 ethylene oxide units; Provided that the sum of carbon atoms in (R1 + R2 + R3) is equal to or greater than 14; or formula ii R - NH - C - R '(ii)

II

Wherein R and R 'are straight chain C8-22 alk (en) yl, C8-22 aryl or C8-22 alkylaryl groups.

Plasticizer Amide - The plasticizer amides used in the invention are described above in formulas (i) and (ii).

Preferred amides of formula (i) contain more than 8 carbon atoms in the R3 group.

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Specific examples of preferred compounds of formula (i) include N, N-dimethylthalamide, N, N-dimethyllauramide, N, N-dimethylpalmitamide, N, N-dimethylstearamide, N, N-diethylthalamide, N, N-dimethyl 5 coconut alkylamide, N, N-diethyl coconut alkyl amide, N, N-diethanol coconut alkyl amide, N, N-diethanol lauramide, polyoxyethylated stearamide and polyethoxyethylated thallamide.

Most preferred are N, N-dimethylphthalamide, N, N-diethylthalamide, N, N-dimethylcocoalkylamide, N, N-diethylcocoalkylamide and N, N-diethanol thallamide.

Preferred amides of formula (ii) include N-cocoalkyl stearamide, N-decyl stearamide, N-cocoalkyl lauramide, N-thallium amide and N-decyl thalamide.

The plasticizer amide is used at concentration levels of 0.1 to 15% by weight, preferably 1 to 10% by weight of the detergent composition, most preferably 3 to 6%.

In a highly preferred embodiment of the present invention, the plasticizer amide is premixed with the dispersant 20, and the resulting mixture is then added to the rest of the composition.

Any conventional dispersant having a suitable HLB value can be used. Examples are nonionic surfactants resulting from the condensation of primary or secondary alcohols or alkylphenols with polyethylene oxide. Specific examples include the condensation products of tallow alcohol having 5 to 12 ethylene oxide units per molecule.

Also suitable dispersants are the phosphate esters described in EP-A-0 168 889, such as those of the formula R'-O (CH 2 -CH 2 O) n PO (OH) 2, 35 93226 5 wherein R 'is C 12-14 and m is 1 to 5 and are sold under the trade name "Servoxyl VPAZ".

However, a preferred embodiment of the invention is to use fatty acids as dispersants for the plasticizer.

Fatty acids such as lauric, myristic, palmitic, stearic and oleic acids and mixtures thereof may be advantageously used in this context.

A mixture of palmitic and stearic acids is particularly preferred.

As dispersants, fatty acids are most preferably used in a weight ratio of plasticizer to fatty acid of 1: 1 to 10: 1.

Softener Clay - Softener amide is preferred, but not limited, for use in combination with a detergent compatible clay softener. Such clay plasticizers are well known in the detergent patent literature and are widely used in commercial use, both in Europe and the United States. Such clay plasticizers include various heat-treated kaolins 20 and various multilayer smectites. Preferred clay plasticizers are the smectite plasticizer clays described in German Patent Application 2,334,899 and GB Patent 1,400,898. Plasticizer clays are used in preferred compositions at concentration levels of at least 1%, generally 1-20%, preferably 2 - 10%.

Cleansing Surfactants - The compositions of this invention usually contain organic surfactants ("surfactants") to provide the usual cleansing effects associated with the use of such materials.

Cleansing surfactants useful in this context include synthetic anionic surfactants known per se. Typical of these are alkylbenzenesulfonates, alkyl and alkyl ethers, sulfates, paraffin sulfonates, olefin sulfonates, alkoxylated (especially ethoxylated) alcohols and alkyl alcohols. In general, such cleansing surfactants contain a C9-C18 alkyl group; anionic detersive surfactants can be used as their sodium, potassium or triethanolammonium salts. U.S. Patent No. 4,111,855 contains detailed lists of such typical detersive surfactants. C 1 -C 16 alkyl benzene sulfonates, C 12 -C 18 paraffin sulfonates and alkyl sulfonates, as well as ethoxylated alcohols and alkyl phenols are particularly preferred in compositions of this type.

Also useful in this connection are water-soluble soaps, for example the usual sodium and potassium coconut or tallow soaps known per se in the art.

The surfactant component may be present in the detergent composition of the invention in as little as 20 1%, but preferably the compositions contain from 5 to 40%, more preferably from 10 to 30%, of surfactant. Mixtures of ethoxylated, nonionic surfactants with anionic surfactants, such as alkylbenzenesulfonates, alkyl sulfates, and paraffin sulfonates, are preferred for the entire wash-resistant cleaning of a wide variety of dirt and stains from fabrics.

Bleaching Compound - The bleaching compound in the context of the present invention is represented by a peracid bleaching agent. In the context of the present invention, the peroxyacid bleach 30 comprises both the peracid itself and systems capable of producing peroxyacids in situ.

The "peroxyacids" themselves in this context include their alkali and alkaline earth metal salts. Peroxyacids and diperoxyacids are commonly used; examples 35 are diperoxydodecanoic acid (DPDA) or peroxyphthalic acid.

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Systems capable of producing peracids in situ consist of a peroxygen bleach compound and its Akti catalyst.

Peroxygen bleaches are those capable of producing hydrogen peroxide in aqueous solution; such compounds are known per se in the art and include hydrogen peroxide, alkali metal peroxides, organic peroxide bleaches such as urea peroxide, inorganic persalt bleaches such as alkali metal perborates, percarbonates, perphosphates, persilicates and the like.

Preferred are sodium perborate, commercially available in the form of mono- and tetrahydrates, sodium carbonate peroxyhydrate, sodium pyrophosphate peroxyhydrate and urea peroxyhydrate.

The hydrogen peroxide released reacts with the bleach activator to form a peroxyacid bleach. Types of protein activators include esters, imides, imidazoles, oximes, and carbonates. In those classes, preferred materials include methyl o-acetoxy-20 benzoates; sodium p-acetoxybenzenesulfonates such as sodium 4-nonaneoxyloxybenzenesulfonate; nat-sodium-4-octanoyloxybenzenesulphonate; and sodium 4-decanoyloxybenzenesulfonate; biofenoli-A-diacetin-phosphate; tetra acetyl ethylene diamine; tetraacetylhexame-25 ethylenediamine; tetra acetyl methylene diamine.

Other highly preferred peroxygen bleach activators disclosed in U.S. Patent Nos. 4,483,778 and 4,539,130 include alpha-substituted alkyl or alkenyl esters such as sodium 4- (2-chlorooctanoyl-oxy) benzenesulfonate, sodium 4 - (3,5,5-trimethylhexanoyloxy) benzenesulfonate. Suitable peroxyacids are also peroxygen bleach activators, such as those described in EP-A-0 166 571, i. compounds of the general type RXAOOH and RXAL, wherein R is a hydroxycarbyl group, X is a heteroatom, A is a 95226 8 crosslinking carbonyl group and L is a leaving group, especially oxybenzenesulfonate.

Detergent Additives - The compositions in question may contain other ingredients which aid in their cleansing ability. All washable detergent compositions include a detergent builder and / or a metal ion sequestrant. Compounds to be classified and known per se as detergent builders include nitrilotriacetates, polycarboxylates, citrates, water-soluble phosphates such as tripolyphosphate, and mixtures thereof. Metal ion sequestrants include all of the above, as well as materials such as ethylenediaminetetraacetate, aminopolyphosphonates and phosphates (DEQUEST), and a variety of other polyfunctional organic acids and salts, which are too many to be mentioned individually in this context. See U.S. Patent No. 3,579,454 for typical examples of the use of such materials in various cleaning compositions. Usually the builder / sequester is present in about 0.5-45% of the composition. Zeolite builders of 1 to 10 micrometers in size (e.g. zeolite A) disclosed in German Patent 2,422,655 are particularly preferred for use in low phosphate or phosphate-free compositions.

The laundry compositions in question also preferably contain an enzyme to enhance the cleaning performance of their entire wash for various soils and stains, for example amylase and protease enzymes. Amylase and protease enzymes suitable for use in detergents are known per se in the art and are commercially available as liquid or granular detergents. Commercial cleaning enzymes (preferably a mixture of amylase and protease) are usually used at concentrations of 0.001 to 2% and higher, in such compositions.

Other highly desirable detergent compositions for use in the detergent compositions of the present invention include 93226 9 quaternary ammonium compounds of the formula R 4 R 5 R 6 R 7 N * X ", wherein R 4 is alkyl of 10 to 20, preferably 12 to 18 carbon atoms, R 5, R 6 and R 7 are each C -C 1-4 alkyl, preferably methyl and X 'is an anion, for example chloride 5. Examples of such quaternary ammonium compounds include C 12 -C 14 alkyltrimethylammonium chloride and coconut alkyltrimethylammonium methosulphate. , preferably 1 to 3%.

10 In addition, the compositions in question may contain, in addition to the ingredients already mentioned, various other possible ingredients normally used in commercial products in order to obtain aesthetic or other additional advantages in the performance of the product. Typical ingredients include pH adjusters, perfumes, colorants, optical brighteners, dirt suspending agents, hydrotropes and gel regulators, freeze-thaw stabilizers, bactericides, preservatives, foam regulators, and bleaching agents. substances.

In a whole wash-resistant mode, the compositions are generally used in concentrations of at least 500 ppm, preferably 0.10 to 1.5%, in fabrics to be washed in a wash water bath at pH 7-11. Washing can be performed at a temperature range of 5 ° C to boiling point with excellent results.

Form and Preparation of Compositions - The detergent compositions of the present invention may be in the form of granules, liquid or sheet. They may be prepared by any means suitable for their physical form, for example by mixing the components, coagulating them, forming them into microcapsules, dispersing them in a liquid carrier, releasing them by adsorption or coating them on a substrate which is not in the form of particles. for example, a nonwoven sheet or a sheet of paper.

93226 10

Preferably, the compositions are in the form of granules.

A very preferred method of preparation for said granular compositions is to prepare a melt of a dispersant and an amide by dispersing the molten mixture in a mixed aqueous aqueous grinder mixture containing the remainder of the cleaning ingredients and spray drying in a standard manner. In alternative but much less preferred ways, the melt may be sprayed onto the surface of the detergent granule or allowed to solidify, grind with a colloid mill and dry blended with the rest of the detergent composition. Such compositions may also be sprayed onto particles, e.g. sodium perborate mono- or tetrahydrate, sodium sulphate, sodium carbonate, sodium silicate, sodium phosphate or clay of the type described above.

The following examples are typical of a preferred embodiment of the invention.

Example 1 N, N-dimethylthallamide (a total of 6% of the final composition after spray drying) and stearic acid (2% of the final composition) are mixed, melted in a jacketed batch and stirred until the mixture is homogeneous. Prepare a standard crushing mixture containing the following ingredients (the percentages listed relate to the percentages of the ingredients in the final composition after spray drying).

li.

93226 11

Composition%

Cl1 "C12 alkylbenzenesulfonate 6.2 Tallow alcohol ethoxylate (E011) 1.0 Sodium tripolyphosphate 24.0 Sodium sulphate 15.0 Sodium silicate 8.0 Smectite clay * 6.5 Carboxymethylcellulose 0.4 Polyacrylate (dirt suspender) 1.7 10 Enzymes .5 optical brightener 0.23 sulphonated zinc phthalocyanine ** 25 ppm EDTA 0.2 perfume / copper salts / minor components 0.5 C 1-4 alkyltrimethylammonium chloride 1.9

Moisture up to 77% * natural smectite: ion exchange capacity greater than 20 50 meq / 100 g clay ** U.S. Patent 3,927,967; ppm = parts per million N, N-dimethylthalamide / stearic acid melt is poured into the crushing mixture (60-90 ° C). The roughing mixture and 25 N, N-dimethylthallamide / stearic acid are then treated in a completely standard manner and spray-dried to the final composition. After drying, sodium perborate (20%) and bleach activator (3% sodium salt of 3,5,5-trimethylhexamic acid sulfate ester; see U.S. Patent Nos. 4,483,778 and 4,539,130) are dry blended with granules.

The composition of Example 1 had superior softness and fabric maintenance properties compared to identical compositions that did not contain an N, N-dimethylthalamide / stearic acid premix (comparison).

93226 12

Example 2

Otherwise, the same composition was prepared as in Example 1, but N, N-dimethylthallamide was replaced with N-thalitalamide, premixed with stearic acid under the same conditions as in Example 1. Very good results were obtained in the preferred properties affecting softness and fabric maintenance, compared to the same reference as in Example 1.

Examples 3 and 4 The following low phosphate detergent compositions were also prepared.

Composition:% content e.g. 3 e.g. 4 zeolite-A (1-10 μm) 26.0 26.0 15 sodium nitrilotriacetate 5.0 5.0 smectite clay 3.0 3.0 N, N-dimethylthallamide / stearic acid 2 5, 0 N, N-Diethanol thalamide / lauric acid 2 to 5,0 C 1-4 C 1-3 alkylbenzenesulfonate 6.5 6.5 20 20 Tallow ethoxylate (E0 9-11) 0.5 0.5 Sodium perborate 41 ^ 0 3 20 20 Tetraacetylethylenediamine (TAED) 3 3 3 sodium silicate 8 8 CMC 1 1 25 sodium sulphate 18 18 enzymes (1: 1 amylase / protease) 3 1,5 1,5 optical brightener 0,5 0,5 water, other minor components remaining 100%: up to 100% up to 30

Gelwhite GP (TM): CaCO 3 ion exchange capacity 70 Meq / 100 g 2 prepared as in Example 1 3 35 3 mixed dry with composition 93226 13

The composition of Examples 3 and 4 is prepared by spray-drying an aqueous roughing mixture as described in Example 1. The composition of Examples 3 and 4 provides better softness than the composition in which the amide / fatty acid-5 mixtures have been replaced with excess sodium sulfate.

Claims (7)

1. Detergent composition, characterized in that it contains an anionic surfactant, a peroxyacid bleaching system or a system capable of producing peroxyacetic acid in situ, and a fabric softener, which is an amide of the formula Wherein Rx and R2 are independently a C1-6 alkienjyl, hydroxyalkyl, aryl or alkylaryl group or an optionally alkyl substituted heterocyclic group , R3 is hydrogen or a C1.22 alk (en) yl, aryl or alkylaryl group or an optionally alkyl substituted heterocyclic group or O-R4, where R4 is a C1.22 alk (en) yl, aryl or alkylaryl group or an optionally alkyl-substituted heterocyclic group; R3 and R4 optionally contain functional groups selected from hydroxy, ester, ether, amide and amine groups, each of Rw R2 and R3 containing 0-10 ethylene oxide units; provided that the sum of the carbon atoms in (R1 + R2 + R3) is equal to or greater than 14; or the formula in R - NH - C - R '(ii) where R and R' are straight-chain C 2. A composition according to claim 1, characterized in that the amide is pre-dispersed with a dispersant, which is a non-ionic surfactant obtained from the condensation of primary or secondary aliphatic alcohols; a phosphate ester of the formula 3. A composition according to claim 2, characterized in that the dispersant is a fatty acid containing 10 to 20 carbon atoms in the alkyl chain, and the weight ratio of the amide to the fatty acid present is 1: 1 to 10: 1. 4. A composition according to any one of claims 1-3, characterized in that the peroxyacid bleaching agent consists of a peracid bleaching compound and an activator thereof. Composition according to any one of claims 1-4, characterized in that the amide is present in an amount of 0.1-15% by weight. R 1 is -O (CH 2 -CH 2 O) mPO (OH) 2, where R 1 is C 12 -C 14 and m is 1 - 5; or a fatty acid containing 10 to 20 carbon atoms in the alkyl chain. Composition according to any one of claims 1-5, characterized in that the amide is N, N-dimethyl talgamide, Ν, Ν-dimethyl cocosalkylamide, N, N-diethyl cocosalkyl amide, Ν, Ν-diethanol talgamide, N-cocosalkyl stearamide or N -talgtalgamid. Composition according to any of the preceding claims, characterized in that it further contains a plasticizer of clay.