US1544588A - Cleansing composition - Google Patents

Description

the alkali salts of fatty acids,

- vents whose boiling point Patented July 7, 1925.

UNITED SATS T FICE.

CLEANSING COMPOSITION.

No Drawing.

To all whom it may concern:

Be it known that I, JAMES FREDERICK MOSELEY, subject of the King of Great Britain, residing in Manchester, in the county of Lancaster and Kingdom of England, have invented certain new and useful Improvements in or Relating to a Cleansing Composition, of which the following is a specification.

This invention relates to improved compositions of matter which may be generically termed detersive compositions and are capable of use as agents or assistants for washing, scouring, bleaching, dyeing and similar operations. The invention particularly relates to compositions of the type containing saponaceous ingredients such'as soap and a grease solvent. Various compositions of this general type have been described and various emulsifylng or stabilizing ingredients have been proposed to promote the stability of the emulsion.

It is an object of the'present invention to provide improved compositions which exert simultaneous bleaching, scouring and grease removing actions. A'further object of the invention is to provide improved compositions in which the texture of a pasty composition is improved by certain mineral additions. Further objects of the invention are to provide compositions containing certain named ingredients which have been found by practical experience to give satisfactory results on a large scale. The scope of the invention will be defined in the appended claims. It may be noted'that the term detersive compositions is to be considered as including solid or powdery masses in addition to the pasty or even fluid compositions containing larger quantities of solvent. The term solvents of high boiling point will be applied to solvents having a boiling point substantially higher than 100 C. and typicalexamples of such high boiling, solvents are tetrahydronaphthalene, decahydronaphthalene, tetrahydro-[fi-naphthol and hexahydrophenol, and the term high boiling solvents is to be considered as including solis in the neighborhood of the boiling points of the solvents above recited, since if solvents of a low boiling point are used, it is necessary to limit the temperature of the detersive operations.

The saponaceous ingredient "preferably consists of ordinary soap, but in addition to I may also Application filed January 5, 1923. Serial No. 610,911.

use the alkali salts of sulphonated oils.

These salts or the salts of sulphonic aoids assist in emulsification.

The preferred grease solvents are the high bolling hydrogenated aromatic compounds and I have found by large scale experiments that compositions containing these bodies exert an improved bleaching action which is possibly due to hydrogen peroxide produced by the oxidation of the hydrogen added during hydrogenation, but I shall describe my invention in such a way that it can be carried out irrespective of any theory as to the mechanism of the bleaching action. For practical purposes, it is sufiicient to state that I have discovered that these solvents do in fact exert this improved action.

In addition to the saponaceous ingredientand the solvent, I may add what may be termed texture-forming ingredients, i. e. mineral salts which improve the consistency of pasty compositions. The best example I have so .far discovered of such mineral salts is borax. In British patent application No. 31078 of 1922, I have described the use of one specific natural silicate for the purpose of assisting emulsification, viz,

bentonite,

but I find that the soluble texture-forming mineral salts exert a different action and borax in particular improves the homogeneity of the paste and allows a more transparent product to be made than is possible by the use of colloidal silicates.

The compositions containing the hydrogenated aromatic compounds of high boiling point are an important part of my invention. The invention further comprises compositions containing other known solvents for this purpose which have been stabilized by the aid of my improved texture-forming ingredients. I may add that in practice I find that better results are obtained by employing a. plurality of solvents and a plurality of stabilizing ingredients.

The following examples may be regarded as illustrative of the preparation of my improved compositions:-

Example 1.

acid

10 parts water 8 parts sodium hydrate 70 Tw. A trace of perfume The several ingredients are thoroughly incorporated in a suitable mixing apparatus or mill.

Ewwmple 2.

30 parts hard soap 20 parts decahydronaphthale-ne 20 parts tetrahydronaphthalene 20 parts cyclohexanol 2% parts chlorinated parafin 3 parts butyl alcohol 4 parts water part colloidal suspension of a silicate part sodium borate A trace of terpinol The several ingredients are thoroughly mixed together by stirring during heating.

messes J S FREDERICK MOSELEY.

Witnesses:

ERNALD S. MOSELEY, JOHN W. THOMAS.