Hydrolase surfactant systems and their use in laundering
US5223169A · kind A · utility
5Cited by
8References
50Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 12, 1991 |
| Grant date | Jun 29, 1993 |
| Priority date | — |
| Expiry date | Aug 12, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/38627
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The inactivation in a laundry solution of a hydrolase enzyme by surfactant is prevented by the presence in the laundry solution of an amount of a non-charged enzyme activating means selected from oily hydrocarbons, hydrolyzable fatty acid ester substrates for the enzyme, e.g., triglycerides, essentially lipophilic organic compounds which are not substrates for the enzyme and which bear a polar substituent, and non-ionic surfactants which lower the oil to enzyme critical minimum molar ratio required to activate the enzyme.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.