Sulfated hydroxy mixed ethers, a process for their production, and their use
First Claim
1. A sulfated hydroxyalkyl polyethylene glycol or hydroxyalkyl polypropylene glycol ether of the formula ##STR9## in which R1 is hydrogen or a linear C1 -C16 alkyl radical,R2 is a linear or branched, saturated C1 -C22 alkyl radical,R3 is hydrogen or a linear C1 -C16 alkyl radical,R4 is hydrogen or a methyl group,M represents hydrogen, ammonium, alkylammonium, alkanolammonium, in which the alkyl and alkanol radicals each contain from 1 to 4 carbon atoms, or a monovalent metal atom, andn is a number of from 1 to 30.with the proviso that the total number of carbon atoms in R1 and R3 is between 6 and 16,and mixtures of such compounds.
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Abstract
Sulfated hydroxyalkyl polyethylene glycol and hydroxyalkyl polypropylene glycol ethers corresponding to general formula (II) ##STR1## in which R1 is hydrogen or a linear C1 -C16 alkyl radical,
R2 is a linear or branched, saturated C1 -C22 alkyl radical,
R3 is hydrogen or a linear C1 -C16 alkyl radical,
R4 is hydrogen or a methyl group,
M represents hydrogen, ammonium, alkylammonium, alkanolammonium, in which the alkyl and alkanol radicals each contain from 1 to 4 carbon atoms, or a monovalent metal atom, and
n is a number of 1 to 30,
with the proviso that the total number of carbon atoms in R1 and R3 is between 6 and 16,
and mixtures of such compounds; a process for the preparation of the compounds of formula (II) from the corresponding hydroxyalkyl polyethylene glycol and hydroxyalkyl polypropylene glycol ethers by reaction with gaseous sulfur trioxide or chlorosulfonic acid at an elevated temperature; and the use of the sulfated compounds or mixture thereof as wetting agents and raw materials for detergents and cleaning preparations, especially cosmetic compositions.
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Citations
39 Claims
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1. A sulfated hydroxyalkyl polyethylene glycol or hydroxyalkyl polypropylene glycol ether of the formula ##STR9## in which R1 is hydrogen or a linear C1 -C16 alkyl radical,
R2 is a linear or branched, saturated C1 -C22 alkyl radical, R3 is hydrogen or a linear C1 -C16 alkyl radical, R4 is hydrogen or a methyl group, M represents hydrogen, ammonium, alkylammonium, alkanolammonium, in which the alkyl and alkanol radicals each contain from 1 to 4 carbon atoms, or a monovalent metal atom, and n is a number of from 1 to 30. with the proviso that the total number of carbon atoms in R1 and R3 is between 6 and 16, and mixtures of such compounds.
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18. A process for the preparation of a sulfated hydroxyalkyl polyethylene glycol or hydroxyalkyl polypropylene glycol ether of the formula ##STR10## in which R1 is hydrogen or a linear C1 -C16 alkyl radical,
R2 is a linear or branched, saturated C1 -C22 alkyl radical, R3 is a hydrogen or a linear C1 -C16 alkyl radical, R4 is hydrogen or a methyl group, M represents hydrogen, ammonium, alkylammonium, alkanolammonium, in which the alkyl and alkanol radicals each contain from 1 to 4 carbon atoms, or a monovalent metal atom, and n is a number of from 0 to 12, with the proviso that the total number of carbon atoms in R1 and R3 is between 6 and 16, and mixtures of such compounds, comprising the steps of A. reacting an epoxide or mixture of epoxides of the formula ##STR11## in which R1 and R3 are as defined above, with an alcohol or alcohol alkoxylate, or mixtures thereof, of the formula ##STR12## in which R2, R4, and n are as defined above, at an elevated temperature in the presence of a catalyst to form a hydroxyalkyl polyethylene glycol or a hydroxyalkyl polypropylene glycol ether, or mixtures thereof, of the formula ##STR13## in which R1, R2,R3, R4, and n are as defined above, B. reacting the compound (I) or mixtures thereof with a sulfating agent to form a crude sulfonation product. C. contacting the crude sulfonation product with an aqueous, basic solution, and maintaining the resulting mixture at an elevated temperature, D. adjusting the mixture to a pH value in the nuetral or mildly alkaline range, and E. isolating the compound or mixture of compounds of formula (II) from the reaction mixture.
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