Compositions – Electrolytes for electrical devices
Patent
1992-08-27
1994-01-18
Albrecht, Dennis
Compositions
Electrolytes for electrical devices
252 99, 252135, 25217414, 25217419, 25217421, 25217424, 252DIG2, 252DIG11, C11D 337, C11D 712, C11D 714, C11D 718
Patent
active
052797562
ABSTRACT:
The present invention is based upon the discovery that a non-phosphate automatic diswashing composition comprising from about 2.0 to 50.0 percent by weight of alkali metal carbonate salts such that it contains a weight ratio of about 1:1 to 20:1 carbonate to bicarbonate, from about 2.0 to 60.0 percent by weight of a water-soluble organic complexing agent comprising one or more hydrocarboxylic acids or the salts thereof, from about 0.5 to 8.0 percent by weight of about a 2:1 to a 6:1 blend of an acrylic polymer comprising a salt or ester of acrylic or methacrylic acid having a molecular weight of between about 1,000 to 25,000, with a copolymer of a substituted or unsubstituted maleic anhydride and lower olefin having a molecular weight of from about 1,000 to 50,000, and from about 0.5 to 8.0 percent by weight of a nonionic surfactant provides satisfactory cleaning without unacceptable spotting and filming and without the need to add phosphates and/or a chlorinated agent.
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Brown Raymond S.
Savio Lenore E.
Albrecht Dennis
Barris Charles B.
Church & Dwight & Co., Inc.
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