DE1617229C3 - - Google Patents

Description

The invention relates to a liquid detergent and cleaning agent and, in particular, to such a detergent j; ,, volatility.

The production and properties of taurids are more agile from CA-PS 70 13 63.

Combinations of hydroxy-group-free N-alkyl- ■ sjlliethyltauriden and detergent sulfonates are known _from US Pat. No. 2,860,107.

| .'fi has now been found that surprisingly verbc!) M'rtc emulsifying properties are obtained when 3 \ j, (, M hydroxyalkyl) -methyltaurides are combined with alpha-olefin _su | (OiKiten. Such a special bii is provided by the State of the art not

nnli

(It'ljenstand the invention are therefore washing and Detergent containing a water-soluble Taurid of the general formula

R ₁ -CH (OH) -CH ₂ -N (CH ₃ ) -CH ₂ CH ₂ SO ₃ M

wherein ^ i means a'C ₁₂ -O ₀ -AIlCyI- or oxaalkyl group and j ^ j, -In cation, characterized in that jjjj, l'auride in a 3: 1 to 1: 3 weight-wise h with an alpha -OlefinsuIfonat is present.

pns cation can be any known such _se j, i that the tauride is water-soluble. Examples are ₀ Jj alkali metal, ammonium or substituted Ammofiiiimioncn as Trimethylammoniiim, Triäthanolanitiionium or morpholine. For reasons of economy, sodium, potassium and ium are

jl and availability preferred.

J) ic alkyl group of tauride can either be branched chain and come from either synthetic or natural sources. Typical y _c) turns are, for example, the N- (2-hydroxy _a l (, y |) -N-methyltaunde, in which the radical R _{1 is} C ₁₂ , Q and C ₁₀ , as well as taurides, in which R _{1 is} the poliiiii ¹ ! CnHoji — O — CH ₂ , where η can be 6—18 ·

Dos alpha-olefin sulfonate generally has

a hydrocarbon radical with 8-20 carbon atoms.

A particularly preferred sulfonate is obtained, _{% of} the sulfonation mixture obtained by sulfonating C ₁₁ to C ₂₂ alcohol is completely or completely hydrolyzed and neutralized. 3 _{eV ()} i.'Uiite sulfonating agents are sulfur trioxide / air or sulfur trioxide adapters, e.g. B. sulfur trioxide-dioxane. The complete constitution of the sulfonation mixture is not known, but it is believed that it contains beta, gamma- and delta-sultones as well as alkene sulfonates and hydroxy sulfonates. The sulfonation mixture is preferably hydrolyzed and neutralized with sodium hydroxide solution to give the sodium sulfonates, but water soluble salts with other cations, e.g. B.

xo ammonium, substituted ammonium, and potassium can also be used.

The product obtained by hydrolyzing and neutralizing the sulfonation mixture which itself is made by sulfonating alpha-olefins and is referred to here as alpha-olefin sulfonate, contains hydroxyalkane sulfonates, Disulfonates and other compounds as well as alkene sulfonates. A typical product consists of essentially from about 40 to 80% alkene sulfonates, the double bond predominantly in the 2,3-; 3.4- and 4,5-position, 15 to 40% hydroxyalkanesulfonates and about 3 to 25% disulfonates.

A particularly preferred compound according to the invention contains an olefin sulfonate of a Cjn alpha olefin.

The active ingredients of the combination according to the invention can coexist with other active ingredients. For example, in a typical approach according to the invention, 2-35% each of the tauride and the sulfonate and up to 15% of a foam-enhancing amide of a fatty acid can be present in which one or both hydrogen atoms of the amide nitrogen are replaced by a lower alkyl or lower alkanol group. A lower alkyl or alkanol group is _{understood to mean a Cj -3} alkyl or alkanol group.

Typical foam reinforcing amides include, for example, e ^; n: Lauric monoethanolamide, lauric diethanolamide and lauric isopropanolamide. The laurin group can be replaced by the myristoyl, palmitoyl, stearoyl and oleoyl groups, for example.

A liquid agent according to the invention preferably has a pH above 8.

The invention can also be applied to cleaning agents with the usual additives, it being possible for it to contain up to 55% of an additive. A preferred additive is alkali phosphate, for example sodium tripolyphosphate.
Instead of sodium tripolyphosphate, other additives can be used, e.g. B. pyrophosphates and salts of nitrilotriacetic acid. These additives can be used individually or together.

In a typical means which the emulsifier mixture according to the invention in combination with When using other ingredients, the total amount of the tauride and sulfonate is usually between 10 and 40% by weight of the composition.

Although the invention is particularly applicable to liquid cleaning agents, an agent which the mixture according to the invention contains, also be solid.

With agents according to the invention in granular form

In addition to the above-mentioned amides, unsubstituted amides, e.g. B. Lauramide or the unsubstituted amide from coconut oil.

Other additives can be used,

without changing the essence of the invention. Such normally used in the relevant technology

Dedicated additives include cellulosic soil carriers, perfume and optical bleaches.

It is often advantageous to use solubilizing substances such as e.g. B. Sodium toluene sulfonate or sodium xylene sulfonate or an alcohol, e.g. B. ethanol or propylene glycol, to include.

When used, an improved emulsification or emulsion stabilization is already obtained, if in an emulsion of oil and water at least 0.001% by weight of the total mean of one Mixture of the tauride and the sulfonate according to the invention is present. For many uses it is in particular an amount of emulsification mixture between 0.005 and 0.5% is suitable. Higher concentrations may be suitable for systems that are more difficult to emulsify.

To further explain the invention, reference is made to the following examples. In the examples, the N- (2-hydroxyalkyl) -N-methyltaurides were obtained in equimolecular proportions by reacting a 1,2-epoxyalkane with sodium N-methyltauride. The 1,2-epoxyalkane was in turn obtained by epoxidizing a C ₁₂ -C ₆ fraction from a Ziegler alpha olefin.

The N- (2-hydroxyoxaalkyl) -N-methyltaurines were obtained by reacting a C ₁₂ -C ₁₃ primary alcohol with epichlorohydrin and epoxidizing the intermediate product obtained in order to obtain a C _{5 -C 6} -oxaalkyl epoxide.

Table 1

This last-mentioned compound is then reacted with N-methyltaurine in an analogous manner.

In order to properly evaluate the emulsifying power, the following test was used:
480 cc of tap water (hardness equivalent to 100 parts per million CaCO ₃ ) was added to a 600 cc flask at 45 ° C. 0.1 ecm of a 35% detergent solution or the equivalent was added to the water with subsequent addition

ίο of 20 ecm of winterproof, deodorized cottonseed oil (Salad oil). The mixture was then rotated at 435 revolutions per minute for 1 minute Use a metallic stirrer to stir with a 5 χ 1.6 cm paddle. The paddle was

placed so that 8 cm of the shaft below the surface were immersed in the liquid. The emulsion was then left to stand at room temperature and determines the amount of oil separated out as a function of time.

Using this test method, the emulsifiability of a number of detergent solutions measured.

example 1

The emulsifying power of a C ₁₂ ~ C ₁₆ -N- (2-hy-

hydroxyalkyl) -N-methyltauride (HAMT), sodium lauryl

sulfate (Na L. S.) and mixtures of the two substances

was measured. The results follow in the

belle 1.

Tested agent

% separated oil after 20 min. 1 hour 2 hours.

3 hours.

4 hours

5 hours

6 hours

7 hours

8 hours

0.028% C ₁₂ -C ₁₆ HAMT
0.028% Na. LS

0.007% C ₁₂ -C ₁₈ HAMT
+ 0.021% Na. LS

0.014 C ₁₂ -C ₁₆ HAMT
-τ-0.014% Na. LS

0.021% C ₁₂ -C ₁₆ HAMT
+ 0.007% Na. LS

2-5
100

1 track
1 track
j track

80

90

100

Track Track Track Track Track Track 2—5 2—5
Lane Lane 2 2-5 2-5 2-5 5 5

2 555555

Example 2

Liquid cleaning agents according to the invention were tested with regard to their dishwasher ability. Rows of plates, soiled under standard conditions, were washed in dishwashing detergent solutions prepared by adding 6 g of the detergent to 6 liters of water at 45 ^° C. The number of dishes washed before the foam disappeared was observed. The results confirmed the synergistic effect of the agents according to the invention.

Example 3

100 ml of a solution containing 0.05% detergent was placed in a 250 ml graduated measuring cylinder filled in, which was in a water bath thermostated at 45 ° C. Then became the cylinder turned 10 times and the height of the Foam determined by visual appearance. Then 0.1 g of dirt (fat / flour / Protein dirt) was added, each time the cylinder was inverted five times and the foam height was measured, until all the foam was gone. All foam heights found were totaled and used as Expressed foam numbers. The results obtained are shown in Table 2.

Table 2

% Medium

HAMT

60

65

Alpha olefin sulfonate

Chain length of the olefin sulfonate

C ₁ ,

0 Foam numbers 114 118 106 110 100 20th 106 ■ 257 455 473 254 80 40 134 630 923 649 225 60 60 282 648 957 680 187 40 80 204 257 672 610 161 20th 100 123 62 133 307 83 0 24

Claims (1)

Claim: Laundry detergents and cleaning agents with a content , in a water-soluble taurid of the general I ormel K ₁ -CH (OH) -CFL-N (CFf ₁ ) -CFI ₂ CiIoSO ₃ M wherein R _{1 is} a C _Iä - ₂₀ -AlkyI- or oxaalkyl group and M is a cation, thereby gc-K c η η ζ eich η et that the tauride in one! 1 to 1: 3 mixture by weight with an ilpha-olefin sulfonate is present.