Patent ID: 11912965
Assignee: ECOLAB USA INC.
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  A | IPC A  C

Claim 12:
13. A solid detergent composition comprising:
a solidification matrix comprising an alkali metal carbonate and a polycarboxylic acid or salt thereof, wherein the acid has aqueous solubility between 0.1 and 1500 g/L at 20° C., wherein the alkali metal carbonate is between about 15 wt. % and about 75 wt. % of the composition, and wherein the polycarboxylic acid is between about 15 wt. % and about 50 wt. % of the composition, and wherein the polycarboxylic acid or salt thereof has between 2 and 4 carboxyl groups;
between about 0.1 wt. % and about 25 wt. % of an enzyme; and
between about 0.5 wt. % and about 25 wt. % of a surfactant, wherein the surfactant is a nonionic surfactant, amphoteric surfactant, or a mixture thereof;
wherein the composition is substantially free of added water and fatty acid;
wherein upon dilution the composition provides a pH of between about 7 and about 9; and
wherein the composition is a cast solid, extruded solid, molded solid, a powder, or pressed solid.