Stable liquid enzyme compositions with enhanced activity
First Claim
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1. A liquid enzyme cleaning composition comprising surfactant, detersive enzyme, 10% to about 20% by weight boric acid salt, and 60% to about 85% by weight water;
- the boric acid salt remaining dissolved in the cleaning composition at room temperature;
wherein the liquid enzyme cleaning composition is formulated to provide detersive enzyme that retains about 100% of its initial activity at ambient temperature for at least 11 months after forming the composition.
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Abstract
The present invention relates to a liquid enzyme cleaning composition in which the enzyme is stable at alkaline pH and in the presence of water at concentrations of at least about 50 to about 60 weight percent. In one embodiment, the composition of the invention stabilizes the enzyme with potassium borate.
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Citations
46 Claims
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1. A liquid enzyme cleaning composition comprising surfactant, detersive enzyme, 10% to about 20% by weight boric acid salt, and 60% to about 85% by weight water;
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the boric acid salt remaining dissolved in the cleaning composition at room temperature;
wherein the liquid enzyme cleaning composition is formulated to provide detersive enzyme that retains about 100% of its initial activity at ambient temperature for at least 11 months after forming the composition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A liquid enzyme cleaning composition comprising surfactant, detersive enzyme, 10% to about 20% by weight potassium borate, and 60% to about 85% by weight water;
the potassium borate remaining dissolved in the cleaning composition at room temperature. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
- 43. A liquid enzyme cleaning composition comprising surfactant, a detersive enzyme, 10% to about 20% by weight alkanol amine boric acid salt, and 60% to about 85% by weight water.
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45. A liquid enzyme cleaning composition comprising a surfactant;
- a detersive enzyme;
60% to about 80% by weight water; and
10% to about 20% by weight potassium borate, monoethanolammonium borate, diethanolammonium borate, triethanolammonium borate, or a combination thereof;the boric acid salt remaining dissolved in the cleaning composition at room temperature.
- a detersive enzyme;
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46. A liquid enzyme cleaning composition comprising surfactant, detersive enzyme, 10% to about 20% by weight boric acid salt, and greater than 80% by weight water;
the boric acid salt remaining dissolved in the cleaning composition at room temperature.
Specification