Method for controlling zebra mussels in ship ballast tanks
US5192451A · kind A · utility
39Cited by
9References
9Claims
0Family size
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Key dates
| Filing date | May 6, 1991 |
| Grant date | Mar 9, 1993 |
| Priority date | — |
| Expiry date | May 6, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/931
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method for controlling zebra mussels in ship ballast tanks comprising treating ballast water which contains zebra mussels or which is prone to zebra mussel infestation with an effective amount of a water-soluble dialkyl diallyl quaternary ammonium polymer (polyquat). A preferred polymer is a poly(quaternary ammonium) compound having the recurring structure [DMDAAX.sup.-- ] resulting from the polymerization of monomeric dimethyl diallyl ammonium X.sup.--, wherein X.sup.-- is any suitable anion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.