Back to results
US 5,703,175 AGranted
Caustic-stable modified polycarboxylate compound and method of making the same
AssigneeDiversey Lever, Inc.
InventorsDonald Borseth, David McCall
Life of this patent
Estimating the term…
Abstract
A surfactant-modified polymer and method of making the same. The surfactant-modified polymer has a polycarboxylate backbone with nonionic surfactant chemically associated therewith and is formed by the reaction of a reactant compound selected from the group consisting of carboxylic acids, polycarboxylic acids and mixtures thereof in an aqueous media in the presence of a nonionic surfactant.
Claims15
A method for producing surfactant-modified polymers having a polycarboxylate backbone and nonionic surfactant chemically grafted therewith comprising the steps of:
- (a) admixing an amount of nonionic surfactant with an aqueous solution containing a reactant compounds selected from the group consisting of carboxylic acids, polycarboxylic acids and mixtures thereof;
- (b) initiating a reaction in the aqueous solution containing in the nonionic surfactant and the reactant compound;
- (c) allowing the reaction to proceed until a polymer is produced having a polycarboxylate backbone and at least 0.5 percent by weight nonionic surfactant chemically grafted therewith based on the total weight of the polymer.
Dependencies are inferred from the claim text.