US1340315A - Cleansing compound and process of making same - Google Patents

Description

ERICK IBA'UM, OF NUREMBERG, GERMANY, THE CHEMICAL FOUNDATION, INCL,

ASSIGNOR, BY MESNE ASSIGNMENTS, TO A CORBORA'IION OF DELAWARE.

CLEANSING COMPOUND AND PROCESS OF MAKING SAME.

No Drawing.

To. (221 whom it may concern.-

Be it known that I, Dr. ERICH BAUM, a subject of the Emperor of Germany, and a resident of Nuremberg, in the Empire of Germany, have invented certain new and useful Improvements in, Cleansing Compounds and Processes of Making the Same, of which the following is a specificat1on.

The object of my invention is to provide .a non-inflammable cleansing compound containing trichlorethylene in the form of a solution and to, this .end I may prepare said solutions in the preferred manner herelnafter described.

Trichlorethylene is a well known agent for dissolving grease and may therefore be used for cleansing fabrics by dlssolvlng therefrom grease and other impurities more or less closely related thereto. It is, how-- ever, not advisable to use trichlorethylene in its concentrated form but it is desirable to bring it into a diluted form in order to have a good and economical eflect.

I have found'that this purpose may conveniently be achieved by embodying the trichlorethylene in a neutral soap solution and have furthermore found it advisable to mix therewith anotherhydrocarbon, especially a liquid mineral hydrocarbon, as for instance kerosene. The term kerosene as used by me refers to that kind of mineral oil which is sold generally as a burning oil under such. trade-names as kerosene, Solar oil, etc., the term petroleum being used in some places, particularly in continental Europe, to designate such oils, the

specific gravity of which, although varying I according to regulations by the Governments of various countries, is usually about 0.825 to 0.83, the boilin point ranging from I about 175 C. to 260 I prefer to'add the kerosene and, trichlorethylene to the soap solution in the form of a mixture.

To produce my new compound Imay proceed as describedin the following example:

I heat.11.5 kilos of ricinoleic acid in a suitable vessel up to about 50 C. and add thereto a solution of 20 B. specific gravity, containing the theoretical quantity of caustic alkali, the whole being gently stirred. By this a clear gelatinous soap is soon obtained. A mixture of 12.5 kilos trichlorethylene and 750. grs. kerosenejis then permitted to gradually flow intosame, the latter ingredients being readily dissolved in' Specification of Letters Patent.

Patented May is, 1920.

Application filed November 28, 1913. Serial No. 803,377.

the soap. To the mass thus obtainedwater is ,added until a volume of 100 liters is reached. For equalizing a slight variation in color, as may be shown by the various charges, a little coloring matter may be added.

The solution of trichlorethylene in a solution the chief ingredient of which is soap, is a very may be readily, safely and economically applied to clothing and the like, for cleansing the same.

It is understood that where I say that I use ,ricinoleic acid for the soap employed in the compound, Ican just as well use soap made by direct saponification of castor oil,

' and that any other suitable soap made by direct saponl cation of raw material of either vegetable or animal origin or soaps made.

from acids derived from such raw materials may serve as a substitute of the ricinoleic acid mentioned in above example, provided said soap does not contain sulfur 1n any form especially in the form of the so-called sulfo-group which is present in soap made from. sulfonates obtained by treating suitable oils with sulfuric acid.

I do not restrict myself to any of the proportions stated or ingredients named further than the scope of the appended claims demands.

lVhat I claim and desire to secure by LettersPatent is 1. A cleansing compound consisting of a" advantageous form for use since it.

2. A cleansing compound consisting of a v solution of a neutral soap, kerosene and water.

3. The process of making a cleansing comtrichlorethylene,

pound in the forni of a solution containing a neutral soap, trichlorethylene and kero-' sene consisting in dissolving trichlorethylene in the'presence of kerosene in a neutral soap solution.

4. The process of making a cleansing compound in the formof a solution containing a neutral soap, trichlorethylene and kerosene consisting in dissolving a mixture of trichlorethylene and kerosene in awneutral soap solution;

- v ERICH BAUM".

Witnesses: 1

' MARTIN ERHARD,

WILLY HERRMANN.