The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 17, 1992
Filed:
Jan. 08, 1990
P Anthony Simion, Hazlet, NJ (US);
Dirk Warschewski, Spotswood, NJ (US);
Leonard A Zyzyck, Somerset, NJ (US);
Colgate-Palmolive Company, Piscataway, NJ (US);
Abstract
An aqueous light duty liquid detergent composition consisting essentially of, by weight, 10% to 50% of a mixture of a water-soluble alkylbenzene sulfonate detergent salt and a water-sokluble alkyl ethenoxy ether sulfate detergent salt in a weight ratio sulfonate to sulfate in the range of about 0.8:1 to 2:1; about 1% to 8% of an alkanoic acid mono- or di-ethanolamide foam booster; at least about 0.5% to 1.8% of magnesium ions; triethanolammonium ion of 2:1 to 1:2.4; and the balance an aqueous medium, said composition having a pH of 5 to 8 and exhibiting improved oily soil removal and oily soil emulsification properties at a temperature of 18 C. to 26 C. as compared to the same composition without the magnesium and triethanolammonium ions. A method of making said composition comprising the steps of neutralizing alylbenzene sulfonic acid with magnesium hydroxide to a pH of about 1.5 and thereafter adding sodium hydroxide to increase the pH to the range of 5 to 7, neutralizing the alkyl ethenoxy ether sulfuric acid with a mixture of triethanolamine and ammonium hydroxide, admixing the sulfonate salt with the sulfate salt and thereafter adding said alkanoic acid alkanolamide in liquid form with agitation to form a homogeneous liquid detergent composition. Also described is a method of cleaning articles having oily or greasy soil on a metal or glazed surface comprising contacting said soiled article with water having dissolved therein from 0.5% to 5% by weight of the subject light duty liquid detergent composition.