DE2024671A1 - Soap sulfonate detergent bar - Google Patents

Description

Patent attorneys
Or. Ing. A. van der W

rp L & i ^ r May 20, 1970

B 411 London

OTIEßVER K.V.

Museum Park 1, Hotterdam / Holland

Soap sulfonate detergent bar,

Priority: England, May 22, 1969, No. 26143/69

The invention relates to soap sulfonate detergent bars, especially on tallow soap alkylarylsulfonate pieces, which are used for body care and cleaning, hereinafter referred to as toilet detergent pieces for short.

Bars made from tallow soap are unsatisfactory in some of their properties which are necessary _{8 in} order for them to meet consumer demands. For example, the pieces even if used too low a volume of foam in hot water at 4 ⁰ C and the foam is watery and its creaminess is unsatisfactory. So far, these deficiencies have been overcome by "mixing the sebum with at least 15 $ nut oil before saponification; several common soaps have fat deposits in the range from 80 tallow / 20 wet oil to 50 tallow / 50 nut oil. These soaps have good foaming power and a handle appreciated by consumers,

The invention seeks to create a toilet detergent unit, on the basis of a tallow soap and an alkyl aryisulfonate, which has a better foaming power

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than that of the corresponding tallow soap / nut oil soap bar, and which in some approaches equals or even exceeds the quality of the usual oMgen soaps,

Accordingly, the invention relates to a toilet detergent piece, which is at least $ 42 of a yet to be defined Sebum soap, expressed as anhydrous soap, and $ 3-50 of a water-soluble alkali metal or alkali metal alkylarylsulfonate comprises, wherein the alkyl carbon atoms in the SuIfonat a total of 4-10 in one or in two alkyl substituent groups amount, of which 3-9 of these carbon atoms in a straight chain in at least one the alkyl groups are present.

The alkylarylsulfonate can be prepared by the alkylation and sulfonation of benzene or other aromatic hydrocarbons, e.g. Toluene and ethylbenzene using alkylating agents, eg »alkyl halides · from alpha-olefins obtained from cracked wax or from Ziegler polymerization products; from internal linear ^u lefins such as are produced by dehydrogenation or by chlorination / dehydrochlorination of linear paraffins; and from the partially branched olefins as obtained by polymerization or

Mixed
/

depolymerization of low molecular weight olefins produced can be *

Bs is of course that the position of the aryl group with respect to the alkyl chain or chains are not the same for all molecules of the alkylarylsulfonate needs to be.

Tallow soap is to be understood as a sodium, potassium or ammonium salt, where at least 75 $ are the sodium salts of either (a) fatty acids of the tallow fat class (e.g. beef tallow, mutton tallow, lard, palm oil or certain types of vegetable butters), or (b) a mixture of such fatty acids, dasa .

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There are 16-24 carbon atoms per molecule, no more than $ 64 of the molecules are monounsaturated, not more than $ 16 are double-unsaturated and the rest are predominantly are saturated.

The lowest sodium cation content of the bars according to the invention should be such that the weight of the soap and alkyiarylsulfonate, which contain sodium cations, more than the weight of soap and alkyiarylsulfonate, which should contain other cations. The preferred bar contains mostly sodium cations. Pieces containing mainly other alkaline cations, e.g. potassium, are less satisfactory. Surprisingly Pieces with a high percentage of potassium cations give lower foam volumes than pieces with a high content of sodium cations, The appearance after the use of the preferred, predominantly sodium cations containing piece according to the invention is noticeably ahge- ' more susceptible than a piece with a high content of potassium cations T Suitable alkyl aryl sulfonates are those which consists of η-butyl, n-pentyl, n-hexyl, n-heptyl, n-octyl- or n-nonylbenzene; Di-n-propyl- or di-n-butylbenzenej η-butyl, n-pentyl, n-hexyl, n-heptyl or n-octyltoluene; η-butyl, n-pentyl, n-hexyl or n-heptylethylbenzene; Isobutyl, isopentyl, isohexyl, isooctyl or isononylbenzolj isobutyl, isopentyl, isohexyl, Isoheptyl or isooctyl toluene; and isobutyl isopentyl isohexyl or ispheptylethylbenzene.

It is surprising that a short-chain alkyiarylsulfonate is advantageously included in the pieces according to the invention although those skilled in the art regard such sulfonates as poor detergent active. Your excellent Utility in toilet detergent items is unexpected. The bars of the invention include from $ 42-90 sebum soap, expressed as anhydrous soap, and from $ 3-50 alkyiarylsulfonate, preferably $ 5-20 based on the weight of the bar. Water is up to about 20 wt

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be present of the piece. Small amounts of electrolytes will also be present. Other ingredients common in toilet detergent bars may be included, "for example (1) plasticizers and / or foam modifiers such as higher aliphatic straight or branched-chain paraffins, fatty alcohols and their organic esters, fatty amides and n-alkyl-substituted fatty acid amides, phospholipoids, higher aliphatic lower ones Alkyl-ol-amides and their organic estersj (2) binders and gums, mucilages or synthetic polymeric substances for the communication of slip, Z ₀ B ₀ starch, lower starch alkyl ethers, lower starch alkoxy ethers, lower starch alkyl oxy ethers, lower starch alkyl oxy sulfonate ethers, lower cellulose alkoxy sulfonate ethers, lower cellulose alcohols lower cellulose alkyl sulfonate ethers, locust bean gum, guar gum, elm mucilage, chondroitin sulfate, proteins, peptides, polyacrylamides, very high molecular weight water-soluble polymers and copolymers of vinyl alcohol, maleic acid, acrylic acid, itaconic acid, pyrrolidone, allyl alcohol, especially polyethylene oxides ylene oxides, for example Garbowaxes, polyoxes, optionally with a proportion of polymerized monomers which carry an ionizing carboxy, sulfate, sulfonate, phosphate or phosphonate group »(3) coloring substances, opacifiers, pigments, optical brighteners, bactericides, fungicides, stabilizers , Perfumes, sequestering substances, glucose or glycerine.

An overfatting agent to further increase foaming power can be included. Fatty acid with 10-24 carbon atoms and an iodine number of less than 30 can be used in amounts up to 30% by weight of the piece, preferably in amounts of 5-25 Weight 56, are incorporated · loilette washing according to the invention Centerpieces, if over-greased by predominantly saturated fatty acids with 16-24 carbon atoms, call when washing an increased mild feeling on the skin. ”It is also surprising that these over-greased pieces the high Maintain the foaming power exhibited by the corresponding not over-greased pieces. Furthermore, excessive fat indicates a the usual sodium acid, e.g. one from a fatty substance

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- P MM

Approach of 80 fo tallow fat and $ 20 coconut oil, with $ 20 pristerene 63 (a commercially available mixture of about 65 parts stearic acid and 35 parts palmitic acid) printed volume , Contain getyl alcohol or combinations thereof, foot oil soap or its synthetic equivalent may also include Ms at 10% by weight of the bar «,

The novel properties can be prepared by mixing liquid tf tallow soap with about 62 $ total fatty matter content with the desired proportion of alkylaryl "sulfonatbrei or paste, drying the mixture to a water content of about 1Qj6, adding such ingredients as perfume and pigments, are compiling the mixed Materials and pressing bars from common toilet soap machines.

The pieces have satisfactory wear rates and foam creaminess and white synergistic visual space volumes on.

The invention is also described, for example, on pieces

Total / which essentially consists of sebum soap (about 785 ε äbcanduüBfettmasse) and. the specified alkyl aryl sulfonate expressed as weight percent of the bar. Each of the pieces was subjected to a foam volume test in which each of a panel of panelists used each piece in a standard manner and measured the volume of foam so created. Each tester made two determinations at water temperatures of 20 and 40 ^° O and the results for each piece at each temperature are averages. The "foam volume # ^w " given below are percentages of the foam volume as given by a sebum soap that does not contain alkylarylsulfonate.

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-6- Examples 1-12 2024671 ^ 20 ⁰ C 40 ⁰ C 5 128 105 SuIfonat- foam volume- ^ 267 192 15th 220 210 1 x sodium n-hexylbenzenesulfonate salary 257 263 5 74 84 2. Sodium n-octylbenzenesulfonate 5 300 25Ο 15th 67 82 3 · Sodium n-butylbenzenesulfonate 5 367 269 5 75 68 4 »Sodium n-hexylbenzenesulfonate 1.5 353 279 15th 65 60 5 x sodium n-octylbenzenesulfonate 15th 320 273 15th 226 173 6 sodium di-propylbenzenesulfo-
nat 15th 352 246 100 100 100 7. Sodium di-butylbenzenesulfo-
nat 15th 360 335 100 95. 67 8. Sodium butylethylbenzene
sulfonate 15th 417 235 100 106 75 9 sodium hexylethylbenzene
sulfonate ¹⁵ ■ ",. 393 360 10. Sodium-nC ^ -Cq alkylbenzene-
sulfonate ^{ö ö} 15th 384 300 ρ
11. Sodium-n-Cg-Cg alkylbenzene
sulfonate 15th 400 360 12. Sodium-n-heptylbenzene
sulfonate 15th i
$ 25 C ₈ ¹ nC ₆ -C8 is probably 25 $ C ₆ , \ 15th and 10 C ₈ , calculated n-Cg-Cg is probably 50 # C ₆ , ~ M C ₇ , as sodium alkylarylsulfonates 4056 C ₇ Comparative examples outside the invention a) Sodium Cumene Sulphonate b) sodium xylene sulfonate c) sodium toluenesulfonate d) sodium dihexylbenzenesulfonate e) Sodium tallow soap alone f) sodium n-hexylbenzenesulfonate
alone g) Sodium-Cg-Cg (commercially available)
Benzenesulfonate alone

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The above results show that synergistic foam volumes are obtained from the bars of the invention

will. *

Me production of a piece according to the invention is in following example shown «

Example 13

Make 100 parts of sodium tallow soap with $ 60 total fat mass added 70 parts of sodium n-hexylbenzenesulfonate as aqueous Liquid with $ 19.5 active detergent, $ 0.36 organic Nondetergent Material and Sodium Sulphate. The resulting mixture was dried to give a matrix of approximately the following composition:

Anhydrous tallow soap sodium n-hexylbenzenesulfonate N. Sodium Chloride Sodium Sulphate organic non-detergent material water

72

15th
1

0.6 0.3

11.1

1 part was added to 100 parts of this compound Perfume, 0.3 part titanium dioxide, 0.1 part stabilizer. The mass was piled and extruded on a laboratory toilet soap plant.

The pieces gave a thick creamy foam.

The following examples 14-19 prove the surprising Maintenance / improvement in the foam volume, as shown by the pieces according to the invention, if with relatively excessive fat in large amounts of a saturated fatty acid.

In these examples the percentage refers to the alkyl aryl sulfonate based on the weight of the total active detergent constituent, i.e. tallow soap plus xylky / aryl sulfonate, the percentage in fatty acid to the weight of the whole piece; the Cations of the alkylarylsulfonate and tallow soap are sodium ions. The foam volumes of the pieces with the over-greasy ones Acids are expressed as percentages of the foam volumes of the respective pieces excluding the excessively fatty ones

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Acids, These percentages are in the foam value columns

shown in the table below. Examples 14-19

Βίο · Alkyl benzene sulfonate JL fatty acid f Foam values 40 ⁰ C Alkyl radical 15th 20 ⁰ C 111 14th AC ₆ -C ₈ 15th Pristereneχ
63 ³ 20th 117 115 15th - "- 20th -M- 20th 129 107 16 - "- 15th Cr, ₀ acid β 20th 100 102 ιψ L-heptyl 15th Pristerene
63 20th 102 120 18th n-octyl 15th 20th 121 99 19th n-hexyl -M- 20th 97

^ Pristerene 63 is made up of about $ 65 stearic acid and $ 35 palmitic acid.

The mildness of a detergent bar according to the invention, when over-greased with a saturated fatty acid, is indicated by the following Proven results which were obtained by using the cell test described below.

Piece of example

Mr.

Piece composition

of Example 19 of Example 14

3Ο9έ n-Cs-CL ¹ alkylbenzenes

on °, ^ö ßulijat 1ZQ ⁰ Jo Pristerene '63

Reaction count

Cell test »

Comparison piece according to the invention

8th
0

22 9

13th

* Comparing / for the cell test results is a Tallow fat / 20 ^ Hu3söl-sodium soap, this is one of the usual ones loilette soaps, as they have been used for many years, » The skin reaction count compares the number of testers in a group who react to the piece according to the invention ren compared to the test reacting to the comparison piece

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Cell test method.

2.5 ml of a 2% solution of the piece to be tested were in ■

". ° on the inside of the

a plastic that is more likely to be pipe-fed, the "& ¥ X33 ££ S ££ §g" & forearm | one Person was attached. The plastic rather and the solution was removed after 10 minutes and the area rinsed and dried. This treatment was given three times a day four consecutive lay repeated so that each hatotflache in which I read a total of 12 treatments. the Tests were carried out on groups of 20 people each.

Each person wore two cups or cells on the forearm and each cell contained a solution of a different piece. All discriminating responses were counted while the other responses, such as equal responsiveness or no responsiveness; were not observed. For example, in a group of 20 people, each person carried a cell with a solution of Composition A and Composition B. If 8 people showed a skin reaction to A in relation to B, while 12 people showed no relative effects, the count is expressed as ^rt A compared to B 8 to 0 ".

UUyö4ö / I b 6 nights

Claims (5)

Claims Toilet- I./Wasehmittelstückf: for body cleansing, consisting essentially of sebum soap and a water-soluble alkali or Alkaline earth alkylarylsulfonate, characterized by g e k e η η, that the sebum soap in an amount of at least 42 #, the sulfonate in an amount of 3 * 5O # (each based on the piece weight) is present, and that the carbon atoms in the alkyl group of the sulfonate together 4-10 in one or two alkyl substituent groups are »with 3-9 of these carbon atoms in a straight line Chain are present in at least one of the alkyl groups » 2. Detergent _{piece according spoke 1 9,} characterized in that the sulfonate is hexylbenzenesulfonate, octylbenzenesulfonate or Bmtylbenzenesulfonat. 3 · detergent bar according to! »Spoke 1, characterized» that the sulfonate sipropylbenzenesulfonate, Dibutylbenzenesulfonate, hexylethylbenzenesulfonate, butylethylbenzenesulfonate, Hexyl toluene sulfonate or butyl toluene sulfonate is· 4 x detergent bar according to claim 1 or 2, characterized gekennze leans that the sulfonate of the piece is present in an amount of 5-20 wt. $> · 5. detergent bar according to any one of claims 1-3, characterized characterized in that a fatty acid with 10-24 carbon atoms and an iodine number below 30 in quantities up to 30 Grew * # of the piece, preferably 5-25 #, as over-greasy Agent is included " 6 · detergent bar according to claim 4, characterized in that the fatty acid stearic acid or a Mixture of stearic acid, palmitic acid or behenic acid is. IbbU