US1999630A - Detergent compositions - Google Patents

Description

Patented Apr. 30, 19 35 NITED STATES PATENT OFFICE 1,999,630 n DETERGENT com'osrrrons No Drawing. Application December 14, 1929, Serial No. 414,224. In Germany August 28,

2 Claims.

Various tests made have demonstrated the fact that we are able to produce soap-like materials possessing an excellent and efiicient emulsion and cleaning power, if we bring sulphonated oils as for instance Turkey-red-oil or other similar sulfates and sulfonates together with the alkaline or ammonia salts of phosphoric acid.

It is a known fact that phosphate of soda particularly the tri-sodium (phosphate, which, if brought together with water, dissociates into caustic soda and phosphate, has the property to produce a fat dissolving and thereby dirt removing efiect. That'is why it is being used in so many cases as a cleaning agent for all sortsot household and kitchen utensils.

It is further known that the dirt dissolving property of sodium phosphate will be increased to a certain degree if brought together with the soaps of ordinary fatty acids or with naphthenic alkaline salt. And in this combination it is found as one of the ingredients of soaps and wash-powders.

Coming as a surprise it had been found that through the efiect of sulphuric acid upon fatty oils, the aliphatic sulphonic-acids derived in this manner as for instance the Turkey-red-oil obtained through sulphonating of caster-oil, may

be brought into a compound together with sodium or ammonium phosphate with the result that now this combination will produce materials that not only are able to furnish an excellent substitute in many a way andeveryrespect, but the wetting-out and emulsion power of these bodies tends to go far beyond that of a normal soap.

Example (on. art-5) add50 parts of tri-sodium phosphate slowly and under continued stirring. In a comparatively short time the entire mass will solidify and also form crystals, so that this firm mass is now suit- 5 able to be ground and also dissolves in water yielding a clear solution.

Instead of the Turkey-red-oil as mentioned in the above instance we may also take another aliphatic sulphonating product as for instance liquid resin treated with sulphuric acid also called Swedish liquid resin-or talloel. The soda ash may also be replaced with another salt thatis free of water and which is able to bind water of crystallization to a greater or less degree; and altogether dependent upon the purposes for which the final product is to serve, we find that the rational proportions of the mixture between sulphonated oils and sodium-phosphates may vary within wide limits.

It has however also been proven that these bodies first derived may increase the emulsive and cleaning power of soaps and soap-like washing-agents to a far higher degree than if the phosphoric alkaline or ammonia salts be added to them individually and by themselves.

1. A detergent comprising approximately twenty-flve parts of Turkey-red oil, twenty-five parts of soda ash, and fifty parts of trisodium phosphate, said detergent having a high detergent and wetting out property.

2. 'The method of producing a detergent which comprises heating together twenty-five parts of Turkey-red oil and twenty-five parts of soda ash to form a solution, and slowly adding thereto fifty parts or trisodium phosphate while continuously agitating the same. I

PETER FRIESENHAEN.