Disulfonated alkylamines as degreasers and hydrotropes
AssigneeThe Lubrizol Corporation
InventorsPhilip W. Pike, Bryan A. Grisso, Richard W. Jahnke
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Abstract
The reaction product of an alkylenediamine, each amino group thereof being a primary or secondary amino group; with at least two equivalents of an acrylamidoalkanesulfonic acid or a salt thereof, wherein each amine nitrogen atom of said alkylenediamine is reacted with a single molecule of the acrylamidoalkane sulfonic acid or salt thereof provides a useful surfactant or hydrotrope.
Claims27
A composition of matter represented by the structure
- wherein n is 2 to 6;
- R1 and R7 are each independently hydrogen, hydrocarbyl groups, hydroxyhydrocarbyl groups, alkoxyhydrocarbyl groups, (aminohydrocarbyl groups, aminohydrocarbyl groups wherein the amine nitrogen is substituted by
- alkoxy-terminated or amine-terminated polyether groups, or a mixture thereof;
- R2 through R6 are each independently hydrogen or hydrocarbyl groups, and each X is independently hydrogen, metal, or ammonium or substituted ammonium.
The reaction product of an alkylenediamine, each amino group thereof being a primary or secondary amino group;
- with at least two equivalents of an acrylamidoalkanesulfonic acid or a salt thereof, wherein each amine nitrogen atom of said alkylenediamine is reacted with a single molecule of the acrylamidoalkane sulfonic acid or salt thereof.
A method of cleaning a soiled article or surface, comprising contacting with said article or surface an aqueous solution or dispersion of a composition of matter represented by the structure
- wherein n is 2 to 6;
- R1 and R7 are each independently hydrogen, hydrocarbyl groups, hydroxyhydrocarbyl groups, alkoxyhydrocarbyl groups, aminohydrocarbyl groups, aminohydrocarbyl groups wherein the amine nitrogen is substituted by
- alkoxy-terminated or amine-terminated polyether groups, additional groups of the structure
- or mixtures thereof;
- R2 through R6 are each independently hydrogen or hydrocarbyl groups;
- and each X is independently hydrogen, metal, or ammonium or substituted ammonium.
Dependencies are inferred from the claim text.