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US 4,904,359 AGranted
Liquid detergent composition containing polymeric surfactant
AssigneeThe Procter & Gamble Company
InventorsEugene J. Pancheri, Young S. Oh, Rodney M. Wise
Life of this patent
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Abstract
High sudsing liquid detergent compositions contain anionic surfactant and polymeric surfactant which contains ether linkages, the anionic surfactant forming stable complexes with the polymeric surfactant for improved grease handling.
Claims11
A high sudsing liquid dishwashing detergent composition containing by weight:
- (a) from about 5% to about 50% anionic surfactant;
- (b) from about 0.1% to about 10% of polymeric surfactant selected from the group consisting of:
- [R.sup.1 --R.sup.2 O--.sub.n --R.sup.3 O--.sub.m ].sub.y [R.sup.4 ][1]
- wherein each R.sup.1 is hydrogen, wherein each R.sup.2 or R.sup.3 is an alkylene group containing from two to about six carbon atoms with no more than about 90% of said molecule comprising R.sup.2 or R.sup.3 groups containing two carbon atoms;
- wherein R.sup.4 is selected from the group consisting of alkylene groups containing from one to about 18 carbon atoms and having from two to about six valences, ##STR12## (.dbd.NR.sup.2 N.dbd.), and .dbd.N--R.sup.2 NH--.sub.x, wherein n is from 0 to about 500, m is from 0 to about 500, n+m is from about 5 to about 1000, x is from about 2 to about 50, and y is from two to about 50 and equal to the valences of R.sup.4, and z is from 1 to about 6, and the product of z and x is from 2 to about 50;
- R.sup.1 --OCH.sub.2 CH.sub.2 --.sub.x R.sup.2 --OCH.sub.2 CH.sub.2 --.sub.y OR.sup.1 [2]
- where:
- R.sup.1 is H, or CH.sub.3, or CH.sub.3 (CH.sub.2).sub.n, or unsaturated analogues
- where:
- n=1-17
- each of x and y=2-500
- R.sup.2 --O(CH.sub.2).sub.z or unsaturated analogue of these where z=1-18;
- ##STR13## where:
- R.sup.3 is sulfate or sulfonate
- R.sup.4 is nothing or --OCH.sub.2 CH.sub.2 --B
- A is 5-500
- B<A/2;
- ##STR14## wherein X is from 7.5-16, and Y is about 2.75;
- (c) from 0% to about 10% of a suds stabilizing nonionic surfactant selected from the group consisting of fatty acid amides, trialkyl amine oxides, and mixtures thereof;
- (d) from 0% to about 10% of a detergency builder selected from inorganic phosphates, inorganic silicates, and inorganic carbonates, organic carboxylates, organic phosphonates, and mixtures thereof;
- (e) from 0% to about 15% alkanol containing from one to about six carbon atoms;
- and
- (f) from about 20% to about 90% water, said composition containing sufficient magnesium ions to neutralize at least about 10% of said anionic surfactant when there is less than about 10% alkylpolyethoxylate sulfate surfactant containing from about 1/4 to about ten ethoxy groups per molecule in the composition on the average;
- said composition having a pH of greater than about six when the composition contains said alkylpolyethoxylate sulfate surfactant;
- and said composition having a viscosity of greater than about 100 cps or being substantially free of alkylpolyethoxylate detergent surfactants when the amount of anionic surfactant is less than about 20%.
22 more elements
Dependencies are inferred from the claim text.