Protease-containing compositions stabilized by propionic acid or salt thereof
US5071586A · kind A · utility
14Cited by
11References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 5, 1991 |
| Grant date | Dec 10, 1991 |
| Priority date | — |
| Expiry date | Mar 5, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/38663
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention is concerned with the stabilization of proteases in built, anionic rich, aqueous detergent compositions. More particularly, applicants have discovered that propionic acid or a propionic salt capable of forming propionic acid unexpectedly increases stability relative to other stabilizers, e.g., formic acid or acetic acid (or salts thereof), used in these compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.