Aqueous systems containing amino sulfonic acid derivatives of carboxylic acids
AssigneeThe Lubrizol Corporation
InventorWilliam A. Higgins
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Abstract
Aqueous systems also are described which comprise at least about 40% of water and an N-acrylated amino hydrocarbyl sulfonic acid or salt composition characterized by the presence within the structure of an imido group or at least one acyl acyloxy or acylimidoyl group attached to the amino nitrogen, said groups being derived from the carboxylic acid groups contained in (a) maleic acid or anhydride, or (b) a hydrocarbyl-substituted polycarboxylic acid or anhydride. The amino hydrocarbyl sulfonic acid or salt compositions are useful as emulsifiers, thickeners, dispersants, etc. in the aqueous systems.
Claims8
An aqueous system comprising:
- at least about 70% by weight of water based on the weight of the aqueous system;
- and
- about 3% to about 6% by weight based on the weight of the aqueous system of an imido hydrocarbyl sulfonic acid or salt thereof obtained by reacting a hydrocarbyl substituted succinic acid or anhydride with an amino hydrocarbyl sulfonic acid or salt thereof having the formula ##STR5## wherein R.sup.4 and R.sup.5 are each independently hydrogen, alkyl or aromatic and R is hydrogen or a cation.
Dependencies are inferred from the claim text.