Claims
- 1. An acidic aqueous hard surface detergent composition comprising: (a) a detergent surfactant system which comprises a mixture of amphoteric-non-zwitterionic and nonionic detergent surfactants wherein said amphoteric-non-zwitterionic detergent surfactant has the generic formula:
- RC(O)--N(R.sup.1)--(CH.sub.2)n--N(R.sup.1)--CH.sub.2 --C(O)--OH
- wherein RC(O)-- is a C.sub.8-14 hydrophobic fatty acyl moiety containing from about 8 to about 14 carbon atoms which, in combination with the nitrogen atom, forms an amido group, each n is from 1 to 3, and each R.sup.1 is hydrogen or a C.sub.1-2 alkyl or hydroxy alkyl group and wherein said nonionic detergent surfactant contains a C.sub.6-10 alkyl group and from about 2.5 to about 12 ethylene oxide groups and has an HLB of from about 6 to about 18, the nonionic detergent surfactant being present at a level of from about 0.5% to about 6% and the ratio of nonionic surfactant to amphoteric, non-zwitterionic surfactant being from about 1:4 to about 3:1; (b) optional hydrophobic solvent that provides a primary cleaning function selected from the group consisting of: alkyl and cycloalkyl hydrocarbons and halohydrocarbons, alpha olefins, glycol ethers having the formula R.sup.1 O--(R.sup.2 O--).sub.m H wherein each R.sup.1 is an alkyl group which contains from about 4 to about 8 carbon atoms, each R.sup.2 is either ethylene or propylene, and m is a number from 1 to about 3, and the compound has a solubility in water of less than about 20%; diols having from about 6 to about 16 carbon atoms in their molecular structure; benzyl alcohol; n-hexanol; phthalic acid esters of C.sub.1-4 alcohols; and mixtures thereof, the solvent, when present, being at a level of from about 1% to about 15%; and (c) polycarboxylate detergent builder selected from the group consisting of: dicarboxylic acids having from about 2 to about 14 carbon atoms between the carboxyl groups; citric acid; builders having the generic formula:
- R.sup.5 --[O--CH(COOH)CH(COOH)].sub.n R.sup.5
- wherein each R.sup.5 is selected from the group consisting of H and OH and n is a number from about 2 to about 3 on the average; chelating agents having the formula:
- R--N(CH.sub.2 COOM).sub.2
- wherein R is selected from the group consisting of:
- --CH.sub.2 CH.sub.2 CH.sub.2 OH; --CH.sub.2 CH(OH)CH.sub.3 ; --CH.sub.2 CH(OH)CH.sub.2 OH;
- --CH(CH.sub.2 OH).sub.2 ; --CH.sub.3 ; --CH.sub.2 CH.sub.2 OCH.sub.3 ; --C(O)--CH.sub.3 ; --CH.sub.2 --C(O)--NH.sub.2 ;
- --CH.sub.2 CH.sub.2 CH.sub.2 OCH.sub.3 ; --C(CH.sub.2 OH).sub.3 ; and mixtures thereof;
- and each M is hydrogen; and mixtures thereof, the builder, when present, being at a level of from about 2% to about 14%; said composition having a pH of from about 1 to about 5.5, and from about 2 to about 4 when said dicarboxylic acid detergent builder is present.
- 2. The composition of claim 1 wherein said organic solvent (b) is selected from the group consisting of alkyl and cycloalkyl hydrocarbons and halohydrocarbons, alpha olefins, benzyl alcohol, glycol ethers, and diols containing 6 to 16 carbon atoms.
- 3. The composition of claim 2 wherein said solvent (b) has the formula R.sup.1 O(R.sup.2 O).sub.m H wherein each R.sup.1 is an alkyl group which contains from about 4 to about 8 carbon atoms, each R.sup.2 is selected from the group consisting of ethylene or propylene, and m is a number from 1 to about 3.
- 4. The composition of claim 1 wherein said hydrophobic fatty acyl moiety contains from about 8 to about 10 carbon atoms.
- 5. The composition of claim 4 containing from about 1% to about 15% of said organic solvent (b) having the formula R.sup.1 O(R.sup.2 O).sub.m H wherein each R.sup.1 is an alkyl group which contains from about 4 to about 8 carbon atoms, each R.sup.2 is selected from the group consisting of ethylene or propylene, and m is a number from 1 to about 3.
- 6. The composition of claim 1 wherein: the nonionic detergent surfactant has a peaked distribution in which at least about 70% and less than about 95% of the molecules by weight have an ethoxy content within about two ethoxy moieties of the average ethoxy content.
- 7. The composition of claim 1 containing, as an additional ingredient, from about 0.1% to about 5% of hydrotrope.
- 8. The composition of claim 7 containing from about 1% to about 3% of said hydrotrope.
- 9. The composition of claim 1 wherein said hydrotrope is selected from the group consisting of benzene and substituted benzene sulfonic acid or salts thereof.
- 10. The composition of claim 1 containing, as an additional ingredient, a thickener.
CROSS REFERENCE TO RELATED APPLICATION
This is a division of application Ser. No. 08/140,377, now abandoned, filed on Oct. 21, 1993 which is a continuation-in-part of application Ser. No. 08/035,122, now U.S. Pat. No. 5,384,063, filed Mar. 19, 1993.
US Referenced Citations (16)
Foreign Referenced Citations (2)
Number |
Date |
Country |
894543 |
Mar 1983 |
BEX |
0125854A2 |
Nov 1984 |
EPX |
Divisions (1)
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Number |
Date |
Country |
Parent |
140377 |
Oct 1993 |
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Continuation in Parts (1)
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Number |
Date |
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Parent |
35122 |
Mar 1993 |
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