Treatment of circulating water systems

Details Treatment of circulating water systems Treatment of circulating water systems

2006-03-07

2006-03-07

Hruskoci, Peter A. (Department: 1724)

Liquid purification or separation

Structural installation

Closed circulating system

C210S167150, C504S158000, C504S159000, C504S160000, C514S635000, C514S642000, C514S667000, C514S674000

Reexamination Certificate

active

07008531

ABSTRACT:
The present invention relates to a method of inhibiting the growth of killing algae, bacteria, yeast and/or fungi in a recirculating water system which comprises adding to the water a polymeric biguanide and an adjuvant of the Formula (1) or a salt thereof:wherein:R1is an optionally substituted C8to C12or C18to C22alkyl group; andR2and R3each independently is H or optionally substituted C1-4-alkyl.

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Derwent Publications Ltd., London, GB, Class A97, AN 1998-189101, XP002186957.

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