Liquid or gel dishwashing detergent containing a polyhydroxy fatty acid amide, calcium ions and an alkylpolyethoxypolycarboxylate
Patent 5545354 Issued on August 13, 1996. Estimated Expiration Date: 
August 13, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
August 13, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2437253 2703798 2717894 2965576 3200136 3826748 Liquid detergent composition Detergent composition containing semi-polar nonionic detergent and alkaline earth metal anionic detergent High foaming detergent composition having low skin irritation properties Half esters of organic polyols and a process for their production InventorAssigneeApplicationNo. 938978 filed on 09/01/1992US Classes:510/237, Carboxamide, amine oxide, heterocyclic, quaternary, or zwitterion nitrogen-containing component510/403, Gel or malleable composition (e.g., plastic-like, etc.)510/423, Nitrogen or phosphorus in organic surfactant devoid of covalently bonded anionic substituents510/427, With diverse non-soap surfactant510/433, Nitrogen in organic surfactant devoid of covalently bonded anionic substituents510/434, Polycarboxylic acid component, or acid anhydride or salt thereof (e.g., acrylic acid polymer, maleic anhydride, sodium citrate, etc.)510/476, Carboxylic acid anhydride, free carboxyl group, or salt thereof in the polymer510/488, Carboxylic acid, or salt thereof510/502Hydroxy in the componentExaminersPrimary: Albrecht, Dennis L.Attorney, Agent or FirmForeign Patent References
International ClassesC11D 001/08C11D 001/52 C11D 003/04 C11D 017/08 AbstractLiquid or gel dishwashing detergent compositions containing anionic surfactant, polyhydroxy fatty acid amide, calcium ions and alkyl polyethoxypol ycarboxylate for improved stability are described. A preferred embodiment comprises:(a) from about 3% to about 40% of polyhydroxy fatty acid amide having the formula: ##STR1## wherein R1 is hydrogen, C1-4 hydrocarbyl, 2-hydroxyethyl, 2-hydroxypropyl, or mixtures thereof; R2 is C5 -C31 hydrocarbyl; mid Z is a polyhydroxy-hydrocarbyl having a linear hydrocarbyl chain with at least three hydroxyl groups directly connected to the chain, or an alkoxylated derivative thereof;(b) from about 0.1% to about 4% of calcium ions;(c) from about 0.001% to about 15% of alkylpolyethoxypolycarboxylate surfactant having the general formula: ##STR2## wherein R is a C6 to C18 alkyl group, x is from about 1 to about 25, R1 and R2 are selected from the group consisting of hydrogen, methyl acid radical, succinic acid radical, hydroxysuccinic acid radical, and mixtures thereof, wherein at least one R1 or R2 is a succinic acid radical, hydroxysuccinic acid radical, and R3 is selected from the group consisting of hydrogen, substituted or unsubstituted hydrocarbon having between 1 and 8 carbon atoms, and mixtures thereof; and(d) from about 3 to about 95% of an anionic surfactant;wherein said composition has a pH in a 10% solution in water of between about 7 and about 9.Other References
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