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:
Nov. 11, 1980
Filed:
Sep. 11, 1978
Robert L McLaughlin, Wilmette, IL (US);
Donald C Wood, Des Plaines, IL (US);
DeSoto, Inc., Des Plaines, IL (US);
Abstract
A machine dishwashing detergent which cleans at lower temperature combines a chelating agent with a water soluble oxidizing bleach in an alkaline environment and certain combinations of nonionic surfactants: A. a low-foaming water-soluble polyol which is a polyoxypropyleneterminated block copolymer having a polyoxyethylene core; B. an oil-soluble condensate of about 1 to about 5 moles of ethylene oxide with a hydrophobic organic compound containing a single -OH group; and C. a high-foaming water-soluble condensate of at least about 7 moles of ethylene oxide with a hydrophobic organic compound containing a single --OH group. When all three surfactants are used in an amount of at least about 1%, at least 4% of total surfactant is needed, and when fewer surfactants are used, a larger total amount is required.