Stabilized enzymatic detergent compositions
AssigneeEcolab USA Inc.
InventorsWendy Lo, David Riehm, Erik C. Olson, Sarah Cronin, Michael S. Rischmiller, Carter M. Silvernail, Devon Beau Hammel, Jack Lehman, Jesse Ray Murphy
Life of this patent
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Abstract
The present disclosure relates to a stable, low-foaming enzymatic detergent compositions and methods of making and using the same. In a preferred embodiment, the enzymatic detergent compositions are particularly useful for cleaning medical and dental instruments. In a preferred embodiment, the enzymatic detergent compositions demonstrate stability after storage for at least about 4 weeks and at temperatures greater than room temperature.
Claims18
A low-foaming, enzymatic liquid detergent composition comprising:
- from about 10 wt. % to about 60 wt. % of a polyol, wherein the polyol is a mixture comprising glycerin, sorbitol and propylene glycol;
- from about 1 wt. % to about 5 wt. % of an enzyme;
- wherein the enzyme comprises a protease, a lipase and an amylase;
- from about 1 wt. % and about 15 wt. % of a buffer, wherein the buffer comprises a mixture of an alcohol amine and a C1-C6 polycarboxylic acid;
- wherein the alcohol amine comprises ethanolamine, wherein the C1-C6 polycarboxylic acid comprises citric acid;
- from about 0.1 wt. % to about 10 wt. % of a preservative, wherein said preservative is an isothiazolinone;
- and
- from about 15 wt. % to about 75 wt. % water;
- wherein the composition is a liquid and provides a pH of between about 6.5 and about 9.5 during use;
- wherein the composition during use provides about ½ of an inch or less of foam at about 40° C. after about 15 seconds;
- wherein the composition has less than 0.5 wt. % of borate containing compounds;
- wherein the composition has less than 0.5 wt. % of an amine oxide;
- and wherein the composition has less than 0.5 wt. % of an alkyl polyglucoside.
Dependencies are inferred from the claim text.