Stable liquid enzyme compositions
US7569532B2 · kind B2 · utility
6Cited by
60References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 8, 2004 |
| Grant date | Aug 4, 2009 |
| Priority date | — |
| Expiry date | Aug 12, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/38663
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a liquid enzyme cleaning composition in which the enzyme is stable at alkaline pH and: at high concentration of boric acid salt; in the absence of sodium ion; and/or in the presence of at least about 40 wt-% water. In an embodiment, water is present at concentrations of at least about 60 weight percent. The present enzyme cleaning composition typically yields superior soil (especially protein soil) removal properties. In an embodiment, the composition of the invention stabilizes the enzyme with potassium and/or alkanolamine borate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.