DE1296729B - Water-in-oil emulsion for lubrication purposes - Google Patents

Description

1 2

The subject of patent application L 47797 IVc / butenylsuccinic anhydride is 126 parts

23 c (German Auslegeschrift 1270 723) is a (1.5 equivalents) mixture of polyol grease

Water-in-oil emulsion, consisting of 1 to 80 parts of acid esters - mainly sorbitan monooleate -,

Water, 20 to 99 parts of mineral oil and 0.2 to 588 parts of mineral oil, 9 parts of p-toluenesulfonic acid and

10 parts of an ester of an alkyl or alkenyl 5 500 parts by volume of xylene. The mix will

succinic acid with at least 50 carbon atoms to remove the water for 12 hours at 140 ° C

boiled under reflux in the alkyl or alkenyl radical with a polyvalent one. The reaction mixture will

Alcohol or polyalkylene glycol ether. then washed with water and heated up

Subject of the present additional patent application- 150 ° C / 20 Torr dried. The residue has a

Dung is a further development of this water saponification number of 68.

in-oil emulsion, which is characterized in that B. A polyisobutenylsuccinic anhydride with an additional content of 0.1 to 5 parts and an equivalent weight of 518 is prepared according to A of an alkaline earth metal salt of a fatty acid with at least. To 518 parts (1 equivalent) of this poly about 12 carbon atoms and with a metal isobutenylsuccinic anhydride, the ratio of 1 to 25 is 200 parts. 15 (1 equivalent) polyethylene glycol, 7.2 parts p-toluene-The water-in-oil emulsion of the invention distinguishes sulfonic acid monohydrate and 400 parts xylene compared to the water-in-oil emulsion of the main type. The mixture is heated to 140 to 150 ° C for 10 hours with a patent application due to its high resistance to water. The visibly from the temperature, and it has a volatile content, are then removed by heating to a more constant behavior towards changing temperatures - 20 105 ° C / 4 Torr, then 471 parts will be doors. Mineral oil is added to the water-in-oil emulsion of the invention, and the mixture is filtered to remove solid contaminants, which can be used as a lubricant as well as a hydraulic fluid. That used to be. The filtrate in question for the esters has a saponification number of 50. The alkyl or alkenylsuccinic acids are in C. 300 parts (0.545 equivalents) of a polymer patent application L 42840 IVc / 23c in detail 25 isobutenylsuccinic anhydride - produced described, dimension A - 279 parts (0.545 equivalents) are added. The esters of the alkyl or alkenyl polypropylene glycol, 382 parts of mineral oil and succinic acid ester are prepared according to the known 28.5 parts of an acid activated bleaching earth. Methods. To prepare the esters, more- The mixture is heated to 150 ° C with preferably 2 to 6 alcohols, preferably 2 to 6 alcohols, while passing nitrogen through it, and then filtered hot, hydroxyl groups are used, of which min- The filtrate has a saponification number of 35. at least one hydroxyl group is unsubstituted. D. A mixture of 3318 parts (3 mol) of an example of unsubstituted polyhydric alcohols polyisobutenylsuccinic anhydride - prepared are ethylene glycol, 1,2-propylene glycol, 1,3-Pro- according to A; Saponification number 101, 408 parts (3 mol) of pylene glycol, glycerol, erythritol, pentaerythritol, arabitol, 35 pentaerythritol and 2445 parts of mineral oil are adonitol, xylitol, mannitol, sorbitol and neopentyl glycol. 5 hours at 150 ⁰ C and a further 5 hours on polyhydric alcohols of higher molecular weight 200 was heated to 210 ° C and then filtered. The filtrate are also useful. They include the ver has a saponification number of 50 different polyethylene glycols and polypropylene E. A mixture of 544 parts (0.5 mol) of a glycol. 40 Polyisobutenylsuccinic anhydride - produced The esterification of alkyl or alkenyl amber according to A; Saponification number 103, 90.6 parts (0.5 mol) of acid with the abovementioned polyhydric alcohols sorbitol and 417 parts of mineral oil is heated to 200 ° C., generally at temperatures above 100 ° C., and preferably above 130 ° while passing nitrogen through for 3Va C, performed. The verde kept at 200 to 210 ° C. The mixture is filtered hot using a solvent such as benzene or toluene. The filtrate has a saponification number naphtha, mineral oil, xylene or η-hexane is useful of 55.

moderate to more easily control the reaction temperature F. A mixture of 895 parts (1.6 equivalents)

to be able to. of a polyisobutenylsuccinic anhydride - produced

The quantitative ratio of succinic acid to that provided according to A; Saponification number 100, 181 parts

polyhydric alcohol is usually measured in such a way that 50 (0.744 equivalents) of the polyoxyethylene sorbitan

that at least one tenth and preferably one monooleate of B and 714 parts of mineral oil is used in

half equivalent of the polyhydric alcohol per 4 hours heated to 150 ° C and passed through

Equivalent of succinic acid is used. of nitrogen for 7 hours at this temperature

Below are instructions for manufacture. Then 10 parts of a filter aid are added Succinic acid ester indicated. Parts refer to 55 given, and the mixture is filtered hot. That

Unless otherwise stated, the filtrate has a saponification number of 54.

give is. G. A mixture of 544 parts (1 equivalent)

A. A polyisobutenyl succinic anhydride is made from a polyisobutenyl succinic anhydride -

by reacting a chlorinated polyisobutenes with provided according to A; Saponification number 103, 358 parts Maleic anhydride produced at 200 ° C. The 60 (4 equivalents) of the sorbitan monooleate mixture

chlorinated polyisobutene is obtained by introducing A and 594 parts of mineral oil in one hour

heated by chlorine in polyisobutene with an average of 150 ° C. While passing nitrogen through

lent molecular weight of 1000 at 104 to HO ⁰ C, the mixture is 3 hours at this temperature

until the chlorine content reached 4.3 per cent. That kept kept. Then it is filtered hot. The filtrate has Polyisobutenyl succinic anhydride has a saponification value of 65 and a saponification number of 76.

Soap number of 109 and an equivalent weight of H. 0.5 parts of sodium are in 60.8 parts

of 514th (2 equivalents) of molten sorbitol with stirring

To 770 parts (1.5 equivalents) of this polyiso and dissolved in a nitrogen atmosphere. Then will

3 4

348.6 parts (6 equivalents) of propylene oxide will be within. Alcohols with up to 12 carbon atoms 20 hours at a temperature of 150 to 210 ° C is particularly effective as an accelerator. phenol admitted. After a further hour of heating and alkylated phenols with 1 to 3 alkyl radicals with at 175 ° C the product formed has a hydroxyl - each up to 50 carbon atoms are also preferred of 9.26%. 5 added. Mixtures of alcohols such as methanol and

A mixture of 358 parts (2 equivalents) of the n-pantanol, methanol, isobutanol, and n-pentanol Propylene oxide adduct, 272 parts (0.5 equivalents) of cyclohexanol, methanol and glycerin or methanol a polyisobutenylsuccinic anhydride - her- and isooctanol are particularly useful, made according to A; Saponification numbers 103 and 418 parts The amount of accelerator in the reaction

len mineral oil is mixed while passing nitrogen through io is best in equivalents per Heated to 150 ° C. for 3 Vi hours. The solution is given as acid equivalent. It can be 0.1 to 10 or filtered hot. The filtrate has a saponification number more equivalents per acid equivalent. the of 25. preferred amount is between 0.25 and 5 equiv

I. 0.5 part of sodium is dissolved in 182 parts (6 equivalents per acid equivalent. The equivalent weight of equivalent) of molten sorbitol under nitrogen. The accelerator is calculated from the number of dissolves and the mixture is stirred for about an hour. Since alcoholic or phenolic hydroxyl groups according to are 348.6 parts (6 equivalents) of propylene per molecule. The equivalent weight of a monohydric oxide within 20 hours at a temperature of alcohol is equal to its molecular weight, which is added 150 to 200 ⁰ C. After a further one hour heating of a trihydric alcohol equal to one third digem to 120 to 140 ° C, the ao of its molecular weight and that of a bisphenol product has a hydroxyl content of 16.2%. equal to half its molecular weight.

A mixture of 210 parts (2 equivalents) The carbonation temperature largely depends

this propylene oxide adduct, 272 parts (0.5 equiv from the accelerator used. When using valente) of a polyisobutenylsuccinic anhydride of a phenol, the temperature is generally - prepared according to A; Saponification numbers 103 and 25 between about 80 and 300.degree. C., preferably between 318 parts of mineral oil, are heated to 130.degree. Below 100 and 200 ° C. If an alcohol is used, the reaction temperature is generally not above 100 ° C. When nitrogen is passed through, the temperature is kept at 150 ° C. for _{3 hours.} The mixture rating temperature can also only be filtered at 20 ° C. The filtrate has a saponification number.

^from 36.3D After carbonization, the accelerator,

In the water-in-oil emulsion of the invention provided that it is a volatile compound, by Destilenthaltenen alkaline earth metal salts of a fatty acid derived i _ation removed. If he is relatively little volatile, he can z. Example, from lauric, stearic, oleic, myristic, Palmitm- _generally without adverse effect in the product Oleostearin-, linoleic, linolenic, behenic, remain dichloro-. It is usually advantageous to prepare the carboostearic acid or a mixture of such acids from, ₃₅ nized, basic metal salt in mineral oil, such as are obtained in the saponification of tall oil, sperm oil or _so that the product is a liquid oil solution or other fats. The fatty acids are ent- concentrate that can easily be mixed with other mineral oil holding preferably 16 to 30 carbon atoms in the. If the carbonization in the molecule, and because of the öllöshchkeit and the presence of a volatile solvent, such as xylene effectiveness of the metal salts of these fatty acids as _{40 o} r naphtha performed, so the product can be in the ingredients in the water-in-oil emulsion. Dissolved mineral oil and the oil solution obtained for

To be heated to the alkaline earth metal salts of the fatty acids remediation of the solvent. After hearing the magnesium, calcium, strontium and admixture of the alkaline earth metal base, the acid forms barium salts. The calcium and barium salts are _e j _n metal salt. The reaction mixture particularly preferably contains. The term metal salts loading ₄₅ nearest the metal salt of the acid and a larger distinguishes both normal and basic salts here. Excess metal base. Such a mixture is The metal salts used according to the invention have heterogeneous, mainly because of the presence, a metal ratio of 1 to 25, preferably of the larger excess of the insoluble metal 2 to 10 base. As the carbonization progresses, the

The basic metal salts are increasingly known to be soluble in the organic phase after metal bases per se Method z. B. by cabonizing a Hch, and finally a homogeneous Proim is obtained essential anhydrous mixture of fatty acids that has an unusually large excess of with more than 1 equivalent of an alkaline earth metal base contains metal. The mechanism of formation of the produced in the presence of an accelerator. In the case of homogeneous product is unknown. It is used of a fat, such as sperm oil, this is taken by 55 that carbonizing the excess Adding water saponifies and this water is then converted to metal base in carbonate or bicarbonate, removed before carbonization. that with the metal salt of the fatty acid complexes

The metal base can form an oxide or hydroxide. It doesn't require the entire be. Preferably the oxides and hydroxides are carbonized to form a soluble homo of the metal base Barium and calcium. The accelerator is available as a 60 genes product. In some cases it receives in most cases a hydroxy compound, ζ. B. one already has a homogeneous product if only 75% an alcohol or phenol. It can e.g. B. methanol, the excess metal base are carbonized. Ethanol, Isopropanol, Cyclohexanol, Dodecanol, The preferred fatty acid salts are those that

Behenyl alcohol, ethylene glycol, diethylene glycol, by carbonization of an essentially water-hexamethylene glycol, Glycerin, pentaerythritol, benzyl-65 free mixture of fatty acids, which in turn alcohol, phenol, naphthol, cresol, pyrocatechol, saponification of commercially available fats such as sperm oil, erp-tert-butylphenol, 4,4-methylene-bis-phenol, hexa- hold, and an alkaline earth oxide or hydrotriacontanyl alcohol and furfuryl alcohol uses xyds in the presence of a phenolic accelerator,

such as phenol or heptylphenol. There are usually in the reaction mixture 0.25 to 5 equivalents of a phenolic accelerator. The carbonization takes place at temperatures carried out from 100 to 200 ° C and higher.

Instructions for the preparation of the basic metal salts are given below.

I. A mixture of 423 g (1 equivalent) of sperm oil, 123 g (0.602 equivalents) of heptylphenol, 1214 grams of mineral oil and 452 g of water at 70 ^c C added with 612 g (8 equivalents) of barium oxide. The mixture is refluxed and stirred for 1 hour. Then carbon dioxide is introduced below the surface at 150 ° C. After filtering, a clear product is obtained with the following analytical data: sulfated ash 35%; Neutralization number (basic) 10; Metal ratio 7.3.

K. A mixture of 4022 grams of mineral oil, 310 grams (1.6 equivalents) of heptylphenol, and 1108 grams (12.9 Equivalents) of barium hydroxide is mixed with ao 764 g (2.7 equivalents) of stearic acid at 75 ° C. To Addition of 400 g of isooctanol, the mixture is heated to 110 ° C. and then carbonized at 150 ° C. until a weakly acidic reaction occurs with carbon dioxide. at The volatile constituents are removed under a vacuum of 15 torr. The residue is filtered. That The product has the following analytical data: sulphated ash 20.63%; Metal ratio 3.6.

L. A mixture of 576 grams (2 equivalents) of oleic acid, 524 grams of mineral oil, 60 grams of isooctanol, and 222 grams 98 g of methanol are added to (6 equivalents) calcium hydroxide at room temperature. The mixture is heated to 45 to 55 ° C and treated with carbon dioxide at this temperature for 5 hours. Afterward is dried at 150 ° C / 30 Torr and then filtered. The filtrate has the following analysis data: Sulfated ash 24.5%; Metal ratio 2.4.

M. A mixture of 212 grams (0.5 equivalent) of sperm oil, 58 grams (0.3 equivalent) of heptylphenol, 867 grams Mineral oil and 192 g of water are mixed with 612 g (6 equivalents) of barium oxide at 70 ° C and then on Heated to 150 ° C. At this temperature the mixture becomes weakly acidic against phenolphthalein treated with carbon dioxide. The mixture is filtered. The filtrate has the following analytical data: Sulfated ash 48.4%; Neutralization number (basic) 1; Metal ratio 15.8.

N. A mixture of 212 g (0.5 equivalents) of sperm oil, 58 g (0.3 equivalents) of heptylphenol, 636 g of mineral oil and 120 g of water is mixed with 490 g (6.4 equivalents) of barium oxide at 70 ° C. The mixture is treated at 15O ⁰ C until slightly acidic to phenolphthalein reaction with carbon dioxide. After filtration, the product has the following analytical data: sulfated ash 46.2%; Metal ratio 12.3.

O. A mixture of 134 g (6.65 equivalents) magnesium oxide, 500 g isooctanol, 96 g (0.5 equivalents) Heptylphenol and 583 g of mineral oil are mixed with 234 g (0.83 equivalents) of oleic acid. The mixture is treated with carbon dioxide at 150 ° C until a weakly acidic reaction, and at the same time steam is blown in. The mixture is then dried at 150 ° C./30 torr. The residue will filtered. The filtrate has a metal ratio of 3.4.

For the water-in-oil emulsion of the invention The oil can be a hydrocarbon oil with a viscosity of 50 SUS at 38 ° C to 200 SUS at 99 ° C be used. Mineral oils with lubricating viscosities

(e.g. SAE 5-90) are particularly advantageous for use in the emulsions. A mixture of oils various origins can also be used. Such mixtures can contain oils, mineral, of vegetable, animal or synthetic origin (e.g. silicone, polyolefin or polyester type) contain.

The water-in-oil emulsions with the most favorable properties contain 30 to 50 parts of water and 50 to 70 parts of oil. The water-in-oil emulsions used as non-flammable hydraulic fluids should contain at least 30% water. The concentration of the succinic acid ester in the emulsions is preferably 1 to 5 parts per 100 parts of the water-in-oil emulsion. The main function of the succinic acid ester is that of an emulsifier, although it also cleans the emulsions Gives properties. The concentration of the fatty acid metal salts is preferably from 0.5 to 3 parts per 100 parts of the water-in-oil emulsion. The fatty acid metal salt is used because of its anti-wear properties for better freeze-thaw stability of the emulsion and used as a buffer.

The emulsions can be made by simply mixing water, oil, succinic acid ester, fatty acid Metal salt and other desired additives in a homogenizer or other suitable Mixing device are manufactured. There is heating of the emulsion during or after manufacture not mandatory. The order in which the individual components are mixed is not critical. However, it is expedient, first an oil concentrate with 50 to 95 parts of the oil-soluble components and 5 to Prepare 50 parts of oil and then emulsify the concentrate with water in the appropriate amounts. This can be done by the consumer.

The water-in-oil emulsion of the invention can also contain other conventional additives, e.g. B. stabilizers, Extreme pressure agents, anti-corrosion agents, foam inhibitors, bactericides and anti-oxidation agents, contain.

example 1

Parts by weight

Product of F 9.0

Soybean lecithin 1.8

tert-C _{u 14} -alkyl-primary-amine

(Mgw. 191) 0.6

Zinc diheptylphenyl dithiophosphate .. 2.0

Basic barium salt of I 3.0

Mineral lubricating oil SAE 40 284.1

Antifoam 0.0075

Water 200

Example 2

Parts by weight

Product of F 9.0

Soybean lecithin 1.8

tert-alkyl-primary-amine of Example 1 0.6

Basic barium salt of 1 3.0

Zinc diisooctyl dithiophosphate 1.5

Mineral lubricating oil SAE 40 284.1

Antifoam 0.0075

Water 200

Example 3

Parts by weight

Product of F 9.0

Soybean lecithin 1.8

tert-alkyl-primary-amine of Example 1 0.6 -

Basic barium salt of I 3.0

Zinc di-heptylphenyl dithiophosphate .. 1.5

Zinc diisooctyl dithiophosphate 1.5

Mineral lubricating oil SAE 40 282.6

Antifoam 0.0075

Water 200

10

Example 4 _,. ,.,

^r weight point

Product of F 9.0

Soybean lecithin 1.8

tert-alkyl-primary-amine of Example 1 0.6 zinc di-heptylphenyl-dithiophosphate .. 3.0 Mixture of 91% oleic acid amide, 6% stearic acid and 3% linoleic acid amide 0.6

Basic barium salt of I 3.0 ao

Mineral lubricating oil SAE 40 282.0

Antifoam 0.0075

Water 200

Example 5 _{parts by weight of a5}

Product of F 9.5

Soybean lecithin 3.5

tert-alkyl-primary-amine of Example 1 0.642

Zinc diisooctyl dithiophosphate 3.28

Basic barium salt of 3 3.18

Mineral lubricating oil SAE 40 292.4

Water 240

Example 6. ^{r parts by} weight

Product of B 9.0

Soybean lecithin 1.8

tert-C _{18 24} -alkyl-primary-amine

(MgW. 330) 0.6

Lead diamyl dithiophosphate 3.0

Sulphated sperm oil with a sulfur 3.0

content of 10 ° / o 3.0

Basic barium salt of M 1.0

Mineral lubricating oil SAE 20 281.6

Antifoam 0.0045

Water 200

Example 7 ^. ,

Parts by weight

Product of ρ 9.0

Soybean lecithin 1.8

tert-alkyl-primary-amine of Example 1 0.6

Basic barium salt of I 3.0

Zinc di-heptylphenyl dithiophosphate .. 3.7

Mineral lubricating oil SAE 40 281.9

Antifoam 0.0045

Water 200

35

40

45

Example 8 “. ,

Parts by weight

Product of G 3.0

Soybean lecithin 0.6

tert-alkyl-primary-amine of Example 1 0.2

Basic barium salt of I 1.0

Zinc di-heptylphenyl dithiophosphate .. 1.25

Mineral lubricating oil SAE 40 93.95

Antifoam 0.015

600 parts of this mixture were stirred into an emulsion with 400 parts by weight of water.

Example 9

Parts by weight

Product of H 9.0

Soybean lecithin 1.8

tert-alkyl-primary-amine of Example 6 0.6

Basic barium salt of K 3.0

Zinc di-heptylphenyl dithiophosphate .. 3.75

Mineral lubricating oil SAE 40 271.8

Antifoam 0.0075

Water 200

Example 10

Parts by weight

Product of I 9.0

Soybean lecithin 1.8

tert-alkyl-primary-amine of Example 1 0.6

Zinc di-heptylphenyl dithiophosphate .. 3.75

Basic barium salt of K 3.5

Mineral lubricating oil SAE 40 268.3

Antifoam 0.0075

Water 200

Example 11

Parts by weight

Product of F 9.0

Soybean lecithin 1.8

Benzoic acid salt of the tert-alkyl

prim.-amines of Example 1 0.6

Dipentene disulfide with 36% sulfur 6.0

salary

Basic calcium salt of L 4.0

Mineral lubricating oil SAE 40 278.6

Antifoam 0.0075

Water 200

Example 12

Parts by weight 9.0

Product of E

Monoheptylphenyl ether of the tetra-

ethylene glycol 1.8

tert-alkyl-primary-amine of Example 1 0.6

Zinc di-heptylphenyl dithiophosphate .. 1.5

Zinc diamyl dithiocarbamate 1.5

Basic barium salt of N 1.5

Mineral lubricating oil SAE 20 284.1

Antifoam 0.0045

Water 200

Example 13

Parts by weight

Product of F 9.0

Basic barium salt of I 4.8

tert-alkyl-primary-amine of Example 1 0.6

Zinc diisooctyl dithiophosphate 3.0

Mineral lubricating oil SAE 40 282.6

Antifoam 0.0075

Water 200

The water-in-oil emulsions of the invention can be used as both lubricants and hydraulic fluids mainly used as non-flammable hydraulic fluids.

The lubricant properties, especially the improved wear-reducing properties of the Water-in-oil emulsions are shown from the results of an ASTM wear test. With this one In the test, the emulsion is used in a hydraulic pump (Vickers-104 E-vane pump), which is under

909 523/421

works under the following conditions: engine speed 1200 rpm; approximate flow rate: 7.57 l / min; Pressure: 70 kg / cm ² ; Sump temperature 66 ° C. The results of this test are given in Table I.

For comparison purposes, the same water-in-oil emulsion without the fatty acid was also tested Metal salt as well as a commercially available hydraulic fluid containing water.

Table I.

Hydraulic fluid test duration,
hours

Wings! ring

o / o sidewall wear

Total rotor

With 0.6% of a basic barium salt

(Manufacture according to the instructions below)

Emulsion without metal salt

Commercially available hydraulic fluid

The basic barium salt was prepared as follows: 612 g (8 equivalents) of barium oxide are added to a mixture of 423 g (1 equivalent) of sperm oil, 123 g (0.602 equivalents) of heptylphenol, 1214 g of mineral oil and 452 g of water. The mixture is refluxed and stirred for 1 hour. Then initiated at 15O ⁰ C carbon dioxide under the surface. After filtering, a clear product is obtained with the following analytical data: sulfated ash 35%; Neutralization number (basic) 10; Metal ratio 7.3.

The water-in-oil emulsions of the invention pass the non-flammability test for hydraulic fluids, as required by the US Bureau of Mines. The testing procedure is on the Federal Register dated December 17, 1959, Vol. 24, No. 245, Title 30, Part 35, Sections 35.1 to 35.23.

The corrosion protection properties of the water-in-oil emulsions are based on the results of a rust test seen by dipping a steel strip halfway into a 50 ml sample of the emulsion. After 5 weeks, the strip is examined for rust formation. The results are summarized in Table II.

400

400

1000

400
1000

84

0.071
0.054
0.091

0.217
0.663

0.204
0,201
0.294

0.811
1.170

4.31 0.575

0.042 0.039 0.054

0.080 0.123

0.012

0.030 0.027 0.045

0.051 0.090

0.472

0.071 0.067 0.101

0.223 0.345

0.460

The stability of the water-in-oil emulsions at low temperatures is shown by the results of a freeze-thaw test. In this test, a 200 ml sample of the emulsion is placed in a jar which is sealed and placed in a thermostat kept at 0 ° C for 24 hours. The vessel is then removed from the thermostat and the emulsion is examined for water separation and flowability or pumpability. The emulsion is then warmed to room temperature and examined as above. This test is repeated until water separates or the emulsion solidifies on cooling to 0 ° C. An emulsion according to Example 1 can run through this test eight times before it solidifies ^{on cooling to 0 ° C.} Emulsions without the fatty acid metal salts solidify at 0 ° C after three cycles or even earlier. The improved low temperature stability characteristic of the water-in-oil emulsion of the invention is of particular importance when the emulsion is to be used in an apparatus which is subjected to alternating low and normal temperatures for an extended period of time.

Table II Water-in-oil Results the steam emulsion the in the the emulsion Emulsion exposed part submerged part of the strip Emulsion of Example 5 of the strip clean Commercially available emulsion clean for hydraulic fluid abilities (for comparison) strong clean rusty

Claims (1)

Claim: Water-in-oil emulsion as modified according to patent application L 47797 IVc / 23 c (German Auslegeschrift 1270723), characterized by an additional content of 0.1 to 5 parts of an alkaline earth salt of a fatty acid having at least about 12 carbon atoms and with a metal ratio of 1 to 25.