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Primary Examiner: Pitlick, Harris A.
Assistant Examiner:
Attorney: Kehm; W. C., Dresner; Arthur

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Title: Detergent composition comprising synergistic hydrotrope mixture of two classes of organic phosphate esters

Abstract: The invention relates to a detergent composition comprising a low-foaming, non-ionic surfactant and a synergistic hydrotrope mixture. The hydrotrope mixture is composed of two classes of organic phosphate esters A and B wherein A is the reaction product of a compound of the formula R -- OCH.sub.2 CH.sub.2 --.sub.n OH wherein R is alkyl, aryl, aralkyl, or alkaryl and n is 1 to 10, with phosphorus pentoxide and B is the reaction product of a compound of the above formula with polyphosphoric acid. The weight ratio of A:B is 1:9 to 9:1. The composition may further comprise an alkaline builder.

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Inventors: Chakrabarti, Paritosh M. (Wayne, NJ, US)
Grifo, Richard A. (Bangor, PA, US)

Application Number: 784541
Filing Date: 1977-04-04
Publication_date: 1979-01-30
Assignee: GAF Corporation (New York, NY)
Primary Class(es): 510/435 510/421, 510/436, 510/467
Other Classes:
US Patent Ref:

3004056	Oct, 1961	Nunn et al.	252/DIG.
3004057	Oct, 1961	Nunn	252/DIG.
3122508	Feb, 1964	Grifo et al.	252/DIG.
3235627	Feb, 1966	Mansfield	252/89.
3294693	Dec, 1966	Oupre et al.	252/DIG.
3331896	Jul, 1967	Eiseman et al.	252/156.

Other Refs: Other References: Krupin, "Phosphate Ester Surfactants - Newer Uses," Soap & Chemical Specialties, May, 1969, pp. 86-92, 129, 130.