Anionic/cationic surfactant mixtures
First Claim
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1. A water-soluble complex comprising at least one cationic surfactant having the formula:
- ##STR22## where R1 is an alkyl or alkenyl radical containing from about 8 to about 22 carbon atoms,R2 is an alkyl group of not more than 6 carbon atoms,R3 and R4 each represent (R5 O)n H, wherein n is 1 to 25, R5 is an alkylene of 2 to 4 carbon atoms and the total number of R5 O groups is at least 5, and X is halide; and
at least one anionic surfactant having the formula;
##STR23## wherein R7 is an alkyl radical of from 8 to about 18 carbon atoms, andM is an alkali metal, ammonium or amine, wherein the ratio of anionic surfactant to cationic surfactant is about 1;
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Abstract
Complexes of anionic and cationic surfactants have been found to remove oily stains from fabrics remarkably better than either the cationic or anionic surfactant from which they are formed.
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3 Claims
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1. A water-soluble complex comprising at least one cationic surfactant having the formula:
- ##STR22## where R1 is an alkyl or alkenyl radical containing from about 8 to about 22 carbon atoms,
R2 is an alkyl group of not more than 6 carbon atoms, R3 and R4 each represent (R5 O)n H, wherein n is 1 to 25, R5 is an alkylene of 2 to 4 carbon atoms and the total number of R5 O groups is at least 5, and X is halide; and at least one anionic surfactant having the formula;
##STR23## wherein R7 is an alkyl radical of from 8 to about 18 carbon atoms, andM is an alkali metal, ammonium or amine, wherein the ratio of anionic surfactant to cationic surfactant is about 1;
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- ##STR22## where R1 is an alkyl or alkenyl radical containing from about 8 to about 22 carbon atoms,
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2. A water-soluble complex comprising at least one anionic surfactant and at least one cationic surfactant;
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wherein said at least one cationic surfactant has the formula;
##STR24## where R1 is an alkyl or alkenyl radical containing from about 8 to about 22 carbon atoms,R2 is an alkyl group of not more than 6 carbon atoms, R3 and R4, which may be the same or different, are selected from the group consisting of alkyl of not more than 6 carbon atoms and (R5 O)n H wherein R5 is an alkylene of 2 to 4 carbon atoms and n is a number of from 1 to 25 and the total number of R5 O groups is at least 5, and X is a water-soluble, salt-forming anion; and said at least one anionic surfactant having the formula;
##STR25## wherein R10 is R12 --O(R5 O)o,R11 is R12 --O(R5 O)o or --OM R5 is an alkylene of 2 to 4 carbon atoms, o is an number of 1 to 25, R12 is a hydrocarbon radical from about 8 to about 22 carbon atoms, and M is a water-soluble cation, wherein the ratio of anionic surfactant to cationic surfactant is about 1;
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3. A water-soluble complex comprising at least one anionic surfactant and at least one cationic surfactant;
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wherein said at least one cationic surfactant having the formula;
##STR26## where R1 is an alkyl or alkenyl radical containing from about 8 to about 22 carbon atoms,R2 is an alkyl group of not more than 6 carbon atoms, R3 and R4, which may be the same or different, are selected from the group consisting of alkyl of not more than 6 carbon atoms, X is a water-soluble, salt-forming anion; and said at least one anionic surfactant having the formula;
##STR27## wherein R10 is R12 --O(R5 O)o,R11 is R12 --O(R5 O)o or --OM R5 is an alkylene of 2 to 4 carbon atoms, o is an number of 1 to 25 and the total number of R5 O groups is at least 5, R12 is a hydrocarbon radical from about 8 to about 22 carbon atoms, and M is a water-soluble cation, wherein the ratio of anionic surfactant to cationic surfactant is about 1;
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Specification