Title: Alkaline dishwasher detergent

Abstract: Alkaline dishwasher detergent composition having a specific critical pH, and, preferably, a relatively high level of available chlorine, buffered with trisodium phosphate, containing a tripolyphosphate or pyrophosphate sequestering builder, and having a relatively high level of surfactant. The detergent composition is substantially free of highly alkaline materials and organic builders and preferably contains 2.0r alkali metal silicate and/or a preferred C.sub.17 -C.sub.19 polyethoxylate surfactant.

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Inventors: Barford, Brian D. (Fairfield, OH, US)
Gilbert, Lawrence A. (Fairfield, OH, US)
Staab, Robert A. (Cincinnati, OH, US)
Collins, Royal D. (Bethel, OH, US)
Ries, Charles R. (Cincinnati, OH, US)

Application Number: 902578
Filing Date: 1978-05-04
Publication_date: 1980-04-22
Assignee: The Procter & Gamble Company (Cincinnati, OH)
Primary Class(es): 510/232 8/108.1, 252/187.1, 252/187.25, 252/187.26, 252/187.29, 252/187.33, 252/187.34, 510/228, 510/233, 510/379, 510/381
Other Classes:
US Patent Ref:

3598743	Aug, 1971	Coates	252/99.
3600371	Aug, 1971	Lintner	252/99.
3630923	Dec, 1971	Simmons et al.	252/99.
3656890	Aug, 1972	Toy et al.	252/99.
3696041	Oct, 1972	Gray	252/99.

Other Refs:
Primary Examiner: Weinblatt, Mayer
Assistant Examiner:
Attorney: Aylor; Robert B., Witte; Richard C., O'Flaherty; Thomas H.