Detergent composition and method for removing soil
AssigneeEcolab Inc.
InventorsVictor F. Man, Terrence P. Everson, Steven E. Lentsch
Life of this patent
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Abstract
The invention relates to a highly alkaline or mildly alkaline detergent composition having enhanced cleaning properties. The detergent combines a source of alkalinity and a blend of nonionic surfactants that enhances cleaning starchy soils. The blend of nonionic surfactants preferably includes an alkyl polyglycoside surfactant and a silicon surfactant having a hydrophobic silicon group and a pendant hydrophilic group. Preferably, the blend of nonionic surfactants includes a surfactant having a hydrophobic group and an ethylene oxide residue containing group and a polymer additive. A method for removing soil from an article is provided.
Claims40
An alkaline detergent composition comprising:
- (a) an effective soil removing amount of a source of alkalinity to provide the detergent with a pH of at least 10 when provided as a 1 wt. % aqueous solution;
- and
- (b) an effective soil-removing amount of a surfactant blend comprising:
- (i) a surfactant containing a sugar ring;
- and
- (ii) a silicone surfactant comprising a hydrophobic silicone group and a pendant hydrophilic group having the formula:
- wherein PE represents —CH2—(CH2)p—O—(EO)m(PO)n—Z, x is a number that ranges from about 0 to about 100, y is a number that ranges from about 1 to 100, p is o to 6, m and n are numbers that range from about 0 to about 50, m+n≧1, and Z represents hydrogen or R and each R independently represents a C1-6 alkyl;
- wherein the weight ratio of a surfactant containing a sugar ring to silicone surfactant is between about 1:1 and 20:1.
A method for removing soil from an article, the method comprising:
- (a) forming an aqueous detergent composition from a solid detergent composition, the solid detergent composition comprising:
- (i) an effective soil removing amount of a source of alkalinity to provide the detergent with a pH of at least 10 when provided as a 1 wt. % aqueous solution;
- and
- (ii) an effective soil removing amount of a surfactant blend comprising a surfactant containing a sugar ring and a silicone surfactant, wherein the silicone surfactant includes a hydrophobic silicone group and a pendant hydrophilic group having the formula:
- wherein PE represents —CH2—(CH2)p—O—(EO)m(PO)n—Z, x is a number that ranges from about 0 to about 100, y is a number that ranges from about 1 to 100, p is 0 to 6, m and n are numbers that range from about 0 to about 50, m+n≧1, and Z represents hydrogen or R and each R independently represents a C1-6 alkyl;
- and
- (b) contacting an article surface containing starchy soil with the aqueous detergent composition.
A solid alkaline detergent composition comprising:
- (a) an effective soil removing amount of a source of alkalinity to provide a detergent with a pH of at least 10 when provided as a 1 wt. % aqueous solution;
- (b) a surfactant blend comprising:
- (i) a surfactant containing a sugar ring;
- and
- (ii) a silicone surfactant comprising a hydrophobic silicone group and a pendant hydrophilic group having the formula:
- wherein PE represents —CH2—(CH2)p—O—(EO)m(PO)n—Z, x is a number that ranges from about 0 to about 100, y is a number that ranges from about 1 to 100, p is 0 to 6, m and n are numbers that range from about 0 to about 50, m+n≧1, and Z represents hydrogen or R and each R independently represents a C1-6 alkyl;
- and
- (c) a solidifying agent for solidifying the alkaline detergent composition.
Dependencies are inferred from the claim text.