CA2372695A1 - Detergent composition and method for removing soil - Google Patents

Detergent composition and method for removing soil Download PDF

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Publication number
CA2372695A1
CA2372695A1 CA002372695A CA2372695A CA2372695A1 CA 2372695 A1 CA2372695 A1 CA 2372695A1 CA 002372695 A CA002372695 A CA 002372695A CA 2372695 A CA2372695 A CA 2372695A CA 2372695 A1 CA2372695 A1 CA 2372695A1
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CA
Canada
Prior art keywords
detergent composition
surfactant
composition according
alkaline detergent
article
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002372695A
Other languages
French (fr)
Other versions
CA2372695C (en
Inventor
Victor F. Man
Terrence P. Everson
Steven E. Lentsch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ecolab Inc
Original Assignee
Ecolab Inc.
Victor F. Man
Terrence P. Everson
Steven E. Lentsch
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ecolab Inc., Victor F. Man, Terrence P. Everson, Steven E. Lentsch filed Critical Ecolab Inc.
Publication of CA2372695A1 publication Critical patent/CA2372695A1/en
Application granted granted Critical
Publication of CA2372695C publication Critical patent/CA2372695C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02Inorganic compounds ; Elemental compounds
    • C11D3/04Water-soluble compounds
    • C11D3/044Hydroxides or bases
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66Non-ionic compounds
    • C11D1/825Mixtures of compounds all of which are non-ionic
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66Non-ionic compounds
    • C11D1/662Carbohydrates or derivatives
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66Non-ionic compounds
    • C11D1/82Compounds containing silicon

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.

Claims (38)

1. An alkaline detergent composition comprising:
(a) an effective soil removing amount of a source of alkalinity; and (b) an effective soil removing amount of a surfactant blend comprising:
(i) an alkyl polyglycoside surfactant; and (ii) a silicone surfactant comprising a hydrophobic silicone group and a pendant hydrophilic group;
wherein the detergent composition provides a use solution having a detergent concentration of between about 500 ppm and 2,000 ppm exhibiting a surface tension of less than about 35 dynes/cm.
2. An alkaline detergent composition according to claim 1, wherein the surfactant blend further comprises a nonionic surfactant comprising a hydrophobic group and an -(EO)x group, wherein x is a number of about 1 to about 100.
3. An alkaline detergent composition according to claim 2, wherein the nonionic surfactant comprises an alkyl-ethylene oxide-propylene oxide surfactant.
4. An alkaline detergent composition according to claim 2, wherein the nonionic silicone surfactant comprises a surfactant 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 lower (C1-6) alkyl.
5. An alkaline detergent composition according to claim 2, wherein the silicone surfactant has the formula:

wherein x represent a number that ranges from about 0 to about 100, y represent a number that ranges from about 1 to about 100, a and b represent numbers that independently represent numbers that range from about 0 to about 60, a+b >= 1 and R
is hydrogen or a lower (C1-6) alkyl.
6. An alkaline detergent composition according to claim 1, wherein the silicone surfactant has 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, p is 0 to 6, m and n are numbers that range from about 0 to about 50, m+n>=1.
7. An alkaline detergent composition according to claim 1, wherein the composition comprises a polymer additive.
8. An alkaline detergent composition according to claim 7, wherein the polymer additive comprises a polycarboxylate polymer.
9. An alkaline detergent composition according to claim 1, wherein the alkyl polyglycoside surfactant has a degree of polymerization of between about 1 and about 4, and the alkyl group contains between about 12 and about 16 carbon atoms.
10. An alkaline detergent composition according to claim 1 wherein the source of alkalinity comprises an alkali metal hydroxide.
11. An alkaline detergent composition according to claim 1, wherein the source of alkalinity comprises an alkali metal carbonate.
12. An alkaline detergent composition according to claim 1, further comprising a hardness sequestering agent.
13. An alkaline detergent composition according to claim 12, wherein the hardness sequestering agent comprises an amino trialkylene phosphonic acid sodium salt.
14. An alkaline detergent composition according to claim 13, wherein the hardness sequestering agent additionally comprises a 2-phosphono-butane-1,2,4-tricarboxylic acid sodium salt, 1-hydroxyethylidene-1,1-diphosphonic acid, diethylenetriamine-penta(methylenephosphonic acid) or mixtures thereof.
15. An alkaline detergent composition according to claim 1, further comprising a sequestering agent comprising at least one of sodium tripolyphosphate and amino trimethylene phosphonic acid sodium salt, 2-phosphono-butane-1,2,4-tricarboxylic acid, 1-hydroxyethylidene-1,1-diphosphonic acid, diethylenetriamine-penta(methylenephosphonic acid) or mixtures thereof.
16. An alkaline detergent composition according to claim 2, wherein the nonionic surfactant comprises a capped linear alcohol ethoxylate.
17. An alkaline detergent composition according to claim 16, wherein the nonionic surfactant comprises a benzyl capped C8-12 linear alcohol 6 to 16 mole ethoxylate.
18. An alkaline detergent composition according to claim 1, wherein the detergent comprises a solid block having a mass of at least 100 grams.
19. An alkaline detergent according to claim 18, wherein the detergent is packaged within a flexible wrapping.
20. An alkaline detergent composition according to claim 1, wherein the detergent is in the form of a powder.
21. An alkaline detergent composition according to claim 1, wherein the composition is in the form of a pellet.
22. An alkaline detergent composition according to claim 1, wherein the alkaline detergent composition comprises:
(a) about 5 to 65 wt% of Na2CO3; and (b) about 1 to 25 wt% of a hardness sequestering agent selected from the group consisting of sodium tripolyphosphate, and organic phosphonate sequesterant, and mixtures thereof.
23. An alkaline detergent composition according to claim 22, wherein the phosphonate sequesterant comprises an amino trimethylene phosphonic acid sodium salt.
24. An alkaline detergent composition according to claim 23, wherein the sequesterant additionally comprises a sodium tripolyphosphate and amino trimethylene phosphonic acid sodium salt, 2-phosphono-butane-1,2,4-tricarboxylic acid, 1-hydroxyethylidene-1,1-diphosphonic acid, diethylenetriamine-penta(methylenephosphonic acid) or mixtures thereof.
25. A method for removing soil from an article, the method comprising:
(a) contacting an article surface containing a starchy soil with an aqueous detergent composition comprising:
(i) an effective soil removing amount of a source of alkalinity;
and (ii) an effective soil removing amount of a surfactant blend comprising an alkyl polyglycoside surfactant and a silicone surfactant, wherein the silicone surfactant includes a hydrophobic silicone group and a pendant hydrophilic group.
26. A method for removing soil from an article according to claim 25, wherein said step of contacting comprises contacting the article with an aqueous detergent composition provided at a temperature of between about 120° F and about 170° F.
27. A method for removing soil from an article according to claim 25, wherein the aqueous detergent composition comprises a nonionic surfactant comprising a hydrophobic group and an -(EO)x group, wherein x is a number of about 1 to about 100.
28. A method for removing soil from an article according to claim 25, wherein the aqueous detergent composition comprises a polymer additive.
29. A method for removing soil from an article according to claim 25, wherein the polymer additive comprises a polycarboxylate polymer.
30. A method for removing soil from an article according to claim 25, wherein the detergent composition is provided at a concentration of between about 500 ppm and about 2,000 ppm.
31. A method for removing soil from an article according to claim 25, wherein the detergent composition is provided at a concentration of about 500 ppm and about 5,000 ppm.
32. A method for removing soil from an article according to claim 25, wherein said article comprises dishware.
33. A method for removing soil from an article according to claim 25, wherein said article comprises laundry.
34. A method for removing soil from an article according to claim 25, wherein the aqueous detergent composition comprises a nonionic surfactant comprising alkyl-ethylene oxide-propylene oxide surfactant.
35. A method for removing soil from an article according to claim 25, wherein said silicone surfactant comprises a surfactant 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 lower (C1-6) alkyl.
36. A method for removing soil from an article according to claim 25, wherein the silicone surfactant has the formula:

wherein x represent a number that ranges from about 0 to about 100, y represent a number that ranges from about 1 to about 100, a and b represent numbers that independently represent numbers that range from about 0 to about 60, a+b >= 1 and R
is hydrogen or a lower (C1-6) alkyl.
37. A method for removing soil from an article according to claim 25, wherein the silicone surfactant comprises a surfactant 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, p is 0 to 6, m and n are numbers that range from about 0 to about 50, m+n>=1.
38. A method for removing soil from an article according to claim 25, wherein said step of contacting comprises introducing the aqueous detergent composition into a machine warewashing apparatus.
CA2372695A 1999-05-07 2000-05-05 Detergent composition and method for removing soil Expired - Lifetime CA2372695C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/307,393 US6369021B1 (en) 1999-05-07 1999-05-07 Detergent composition and method for removing soil
US09/307,393 1999-05-07
PCT/US2000/012387 WO2000068348A1 (en) 1999-05-07 2000-05-05 Detergent composition and method for removing soil

Publications (2)

Publication Number Publication Date
CA2372695A1 true CA2372695A1 (en) 2000-11-16
CA2372695C CA2372695C (en) 2010-06-08

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CA2372695A Expired - Lifetime CA2372695C (en) 1999-05-07 2000-05-05 Detergent composition and method for removing soil

Country Status (12)

Country Link
US (4) US6369021B1 (en)
EP (1) EP1177272B1 (en)
JP (2) JP5270055B2 (en)
AR (1) AR019509A1 (en)
AT (1) ATE259874T1 (en)
AU (1) AU769775B2 (en)
BR (1) BR0010350B1 (en)
CA (1) CA2372695C (en)
DE (1) DE60008366T2 (en)
MX (1) MXPA01011334A (en)
TW (1) TW552303B (en)
WO (1) WO2000068348A1 (en)

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