Surfactant system
First Claim
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1. A surfactant system comprising:
- A. about 25-75% by weight of a non-ionic detergent which is a mixture of about 25% by weight of a condensation product of 4-5 moles of ethylene oxide with 1 mole of nonyl phenol, and about 75% by weight of a condensation product of 8-12 moles of ethylene oxide with 1 mole of nonyl phenol;
B. about 5-65% by weight of(1) a tertiary amine oxide selected from the group consisting of(a) alkyl di (lower alkyl) amine oxides in which the alkyl group has about 10-20 carbon atoms and the lower alkyl groups have about 1-7 carbon atoms;
(b) alkyl di (hydroxy lower alkyl) amine oxides in which the alkyl group has about 10-20 carbon atoms and contains from 0 to 1 ether linkages and has one alkyl moiety which contains from about 10 to 15 carbon atoms and no ether linkages, and the lower alkyl groups have about 1-7 carbon atoms;
(c) alkylamidopropyl di (lower alkyl) amine oxides in which the alkyl group has about 10-20 carbon atoms and the lower alkyl groups have about 1-7 carbon atoms; and
(d) alkyl morpholine oxides in which the alkyl group has about 10-20 carbon atoms;
or(2) an amphoteric detergent selected from the group consisting of(a) betaine detergents having the formula ##STR12## (b) alkyd bridged betaine detergents having the formula ##STR13## (c) imidazoline detergents having the formula ##STR14## (d) alkyliminopropionate detergents having the formula ##STR15## (e) alkyliminodipropionate detergents having the formula ##STR16## (f) ether bridged alkyliminopropionate detergents having the formula ##STR17## (g) ether bridged alkyliminodipropionate detergents having the formula ##STR18## (h) cocoimidazoline based amphoteric detergents having the formula ##STR19## wherein R1 is an alkyl radical containing from about 10 to about 14 carbon atoms,R2 and R3 are each selected from the group consisting of methyl and ethyl radicals, andR4 is selected from the group consisting of methylene, ethylene and propylene radicals;
C. about 8-50% by weight of a quaternary ammonium halide having the formula ##STR20## wherein X is a halide and wherein R5 is an alkyl or phenyl-substituted alkyl group having about 10-20 carbon atoms, R6 is lower alkyl, R7 is [--CH2 CH2 O--]x H, and R8 is [--CH2 CH2 O--]y H, wherein the sum of x and y is between 2 and 5; and
D. the remainder water.
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Abstract
An improved surfactant system comprising a mixture of a non-ionic detergent, a tertiary amine oxide or amphoteric detergent, and a quaternary ammonium halide. The surfactant system of the invention is combined with other ingredients to yield 14 different commercially useful cleaners. Each of these cleaners has improved detergent properties compared with prior art cleaners.
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Citations
5 Claims
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1. A surfactant system comprising:
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A. about 25-75% by weight of a non-ionic detergent which is a mixture of about 25% by weight of a condensation product of 4-5 moles of ethylene oxide with 1 mole of nonyl phenol, and about 75% by weight of a condensation product of 8-12 moles of ethylene oxide with 1 mole of nonyl phenol; B. about 5-65% by weight of (1) a tertiary amine oxide selected from the group consisting of (a) alkyl di (lower alkyl) amine oxides in which the alkyl group has about 10-20 carbon atoms and the lower alkyl groups have about 1-7 carbon atoms; (b) alkyl di (hydroxy lower alkyl) amine oxides in which the alkyl group has about 10-20 carbon atoms and contains from 0 to 1 ether linkages and has one alkyl moiety which contains from about 10 to 15 carbon atoms and no ether linkages, and the lower alkyl groups have about 1-7 carbon atoms; (c) alkylamidopropyl di (lower alkyl) amine oxides in which the alkyl group has about 10-20 carbon atoms and the lower alkyl groups have about 1-7 carbon atoms; and (d) alkyl morpholine oxides in which the alkyl group has about 10-20 carbon atoms;
or(2) an amphoteric detergent selected from the group consisting of (a) betaine detergents having the formula ##STR12## (b) alkyd bridged betaine detergents having the formula ##STR13## (c) imidazoline detergents having the formula ##STR14## (d) alkyliminopropionate detergents having the formula ##STR15## (e) alkyliminodipropionate detergents having the formula ##STR16## (f) ether bridged alkyliminopropionate detergents having the formula ##STR17## (g) ether bridged alkyliminodipropionate detergents having the formula ##STR18## (h) cocoimidazoline based amphoteric detergents having the formula ##STR19## wherein R1 is an alkyl radical containing from about 10 to about 14 carbon atoms, R2 and R3 are each selected from the group consisting of methyl and ethyl radicals, and R4 is selected from the group consisting of methylene, ethylene and propylene radicals; C. about 8-50% by weight of a quaternary ammonium halide having the formula ##STR20## wherein X is a halide and wherein R5 is an alkyl or phenyl-substituted alkyl group having about 10-20 carbon atoms, R6 is lower alkyl, R7 is [--CH2 CH2 O--]x H, and R8 is [--CH2 CH2 O--]y H, wherein the sum of x and y is between 2 and 5; and D. the remainder water. - View Dependent Claims (3, 4)
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2. The surfactant system of claim 11, and further comprising about 1-6% by weight of isopropanol.
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5. A method for emulsifying vegetable oil and petroleum oils, said method including the steps of preparing a surfactant system comprising
A. about 25-75% by weight of a non-ionic detergent which is a condensation product of about 4-16 moles of ethylene oxide with one mole of a compound selected from the group consisting of (1) an alkyl phenol having about 7-10 carbon atoms in the alkyl group; -
(2) an alkyl amine having about 12-16 carbon atoms in the alkyl group; (3) an aliphatic alcohol having about 10-20 carbon atoms; and (4) a hydrophobic base formed by condensing propylene oxide with propylene glycol; and B. about 5-65% by weight of (1) an amine oxide selected from the group consisting of (a) alkyl di (lower alkyl) amine oxides in which the alkyl group has about 10-20 carbon atoms and the lower alkyl groups have about 1-7 carbon atoms; (b) alkyl di (hydroxy lower alkyl) amine oxides in which the alkyl group has about 10-20 carbon atoms and contains from 0 to 2 ether linkages and has one alkyl moiety which contains from about 10 to 15 carbon atoms and no ether linkages, and the lower alkyl groups have about 1-7 carbon atoms; (c) alkylamidopropyl di (lower alkyl) amine oxides in which the alkyl group has about 10-20 carbon atoms and the lower alkyl groups have about 1-7 carbon atoms; and (d) alkyl morpholine oxides in which the alkyl group has about 10-20 carbon atoms;
or(2) an amphoteric detergent selected from the group consisting of (a) betaine detergents having the formula ##STR21## said method comprising the step of adding to said aqueous solution C. about 8-50% by weight of a quaternary ammonium halide having the formula ##STR22## wherein X is a halide and the quaternary ammonium radical is selected from the group consisting of (1) radicals wherein R5 and R6 are lower alkyl, R7 is a lower alkyl group or a benzyl group, and R8 is an alkyl group having about 1-18 carbon atoms substituted with a phenyl group, or an alkyl group having about 8-20 carbon atoms; (2) radicals wherein R5, R6 and R7 are lower alkyl, and R8 is an alkyl or phenyl-substituted alkyl group having about 8-20 carbon atoms; and (3) radicals wherein R5 is an alkyl or phenyl-substituted alkyl group having about 10-20 carbon atoms, R6 is lower alkyl, R7 is [--CH2 CH2 O--]x H, and R8 is [--CH2 CH2 O--]y H, wherein the sum of x and y is between 2 and 5, said method further comprising D. combining 1 part by weight of said surfactant system with from about 1 to about 3 parts by weight of alkaline builders and with up to about 100 parts by weight of water to provide a detergent concentrate; E. diluting 1 part by weight of said detergent concentrate with up to about 50 parts by weight of water to provide a detergent solution, and F. mixing said detergent solution and oil to emulsify the oil within said solution.
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Specification