Bio-film control
US6149822A · kind A · utility
31Cited by
37References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 1, 1999 |
| Grant date | Nov 21, 2000 |
| Priority date | — |
| Expiry date | Mar 1, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2209/40
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process is provided for both removing and controlling biofilms present in industrial cooling and process waters. The process provides a composition which includes the reaction products of an amino base, a formaldehyde, an alkylenepolyamine, and the ammonium salt of an inorganic or organic acid. The composition may be used to remove existing biofilms from process water equipment. Further, lower maintenance dosages may be used to maintain the equipment in a substantially biofilm-free condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.