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US 3,941,710 AGranted
Phosphate - free dishwashing compositions containing an alkyl polyether carboxylate surfactant
AssigneeLever Brothers Company
InventorsAllan H. Gilbert, Donald V. Kinsman
Life of this patent
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Abstract
Low phosphate and phosphate-free automatic dishwashing compositions containing a unique surfactant system comprising an anionic polyether carboxylate surface active agent in combination with a low-sudsing nonionic surface active agent, an active chlorine compound and a silicate.
Claims1
A nonphosphate detergent composition suitable for use in mechanical dishwashing consisting of:
- a. 2 percent to about 6 percent of a polyether carboxylate based on a C.sub.14 -C.sub.15 alcohol mixture condensed with 13.5 moles of ethylene oxide;
- b. 20 percent to about 35% of a silicate having a Na.sub.2 :SiO.sub.2 ratio of between about 1:2 to about 1:24;
- c. 2% to about 6% of a low-foaming nonionic surface active agent;
- d. 0.5% to about 1.5% of an anti-foaming agent selected from the group consisting of monostearyl acid phosphate and a eutectic mixture of stearic acid and palmitic acid;
- e. 1 percent to about 2 percent of dichlorocyanurate, and
- f. the balance comprising filler.
3 more elements
Dependencies are inferred from the claim text.