Method for preventing microbial deposits in the wet end of papermachines using ethylene oxide/propylene oxide copolymer
US5573641A · kind A · utility
9Cited by
0References
5Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 28, 1995 |
| Grant date | Nov 12, 1996 |
| Priority date | — |
| Expiry date | Apr 28, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S162/04
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method of removing and preventing the build-up deposit-forming microorganisms in a papermachine fluid, the method comprising the step of treating the fluid with an aqueous, the aqueous solution including from about 0.1 to about 35 parts per million of an ethylene oxide/propylene oxide copolymer having a molecular weight of from about 2500 to about 3550 daltons.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.