Compositions – Water-softening or purifying or scale-inhibiting agents
Patent
1985-11-15
1988-02-16
Lieberman, Paul
Compositions
Water-softening or purifying or scale-inhibiting agents
252173, 25217421, 252547, 252DIG14, C11D 104
Patent
active
047253770
ABSTRACT:
A liquid dishwashing detergent composition for hand washing of dishes in cold water includes a synthetic organic nonionic detergent, a cationic surface active agent, a water soluble C.sub.21 dicarboxylic salt and an aqueous medium. The proportion of the combination of nonionic detergent and cationic surface active agent is a detersive proportion, useful to remove fatty deposits on dishes, and the proportion of the C.sub.21 dicarboxylic salt is sufficient to improve the detersive action in cold water of the combination of nonionic detergent and cationic surfactant so that the composition better removes fatty deposits on dishes being washed. Preferably, the liquid dishwashing detergent composition comprises 10 to 20% of a nonionic detergent, which is a condensation product of 3 to 20 moles of ethylene oxide with one mole of higher fatty alcohol of 10 to 16 carbon atoms per mole, 10 to 20% of ##STR1## wherein R is a hydrocarbyl chain of 8 to 22 carbon atoms and X is a halogen selected from the group consisting of chlorine and bromine, 1 to 5% of a salt of C.sub.21 dicarboxylic acid, selected from the group consisting of sodium, potassium, ammonium and triethanolamine salts, and mixtures thereof, and 50 to 80% of water.
REFERENCES:
patent: 3761429 (1973-09-01), Yamano
patent: 3956161 (1976-05-01), Woodward
patent: 4062814 (1977-12-01), Hansen
patent: 4065409 (1977-12-01), Flanagan
patent: 4222905 (1980-09-01), Cockrell, Jr.
patent: 4259217 (1981-03-01), Murphy
Mechanism of Detergency in Systems Containing Cationic and Nonionic Surfactants, D. N. Rubingh et al., 1982 American Chemical Society.
Industrial Utilization of C.sub.21 Dicarboxylic Acid, Ward, Jr. et al., vol. 52, J.A.O.C.S., pp. 219-224 (1975).
Hydrotropic Function of a Fatty Dicarboxylic Acid, Films et al., 20 Tenside Detergents, No. 4 (1983), 177-180.
Colgate-Palmolive Co.
Kramer Raymond F.
Le Hoa Van
Lieberman Paul
Miller Richard N.
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