Compositions – Water-softening or purifying or scale-inhibiting agents
Patent
1994-06-14
1996-05-14
Lieberman, Paul
Compositions
Water-softening or purifying or scale-inhibiting agents
25217416, 25217421, 252550, 252555, 252557, 252559, 252DIG1, 252DIG10, C11D 1825, C11D 183, C11D 1831
Patent
active
055164528
ABSTRACT:
An aqueous rinse-aid composition for kitchen utensils is provided wherein an anionic hydrotrope and a blend of two specifically defined nonionic surfactants are utilized which has been shown through empirical research to surprisingly yield improved results. One of the nonionic surfactants is an alcohol alkoxylate (as defined) and the other nonionic surfactant is a block copolymer of ethylene oxide and propylene oxide (as defined). The composition is suitable for use at a temperature of up to at least 180.degree. F. in the absence of excessive foaming, spotting and film formation. The components of the composition exhibit good compatibility during storage even if elevated temperatures are experienced thereby maintaining reliable performance upon usage. Rapid high velocity rinsing at a high temperature is made possible in the absence of deleterious foam generation to yield dishes and tableware that can be readily dried without the need for the time consuming hand removal of deleterious spots and/or film.
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Gessner Suzanne M.
Roberts Glenis
Welch Michael C.
Zack Kenneth L.
BASF Corporation
Hertzog A.
Lieberman Paul
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