C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
167/22.8
C02F 1/50 (2006.01) A01N 33/12 (2006.01)
Patent
CA 1287573
Abstract of the Disclosure A method of controlling the fouling potential of macroin- vertebrates, such as mollusks, in aqueous systems which comprises adding to the system an effective controlling amount of a water-sol- uble quaternary ammonium salt having the following structure: Image X? wherein R1 is an alkyl group having about 6 to 24 carbons; R2 is an alkyl, aryl or arylalkyl group having about 6 to 24 carbons; R3 and R4 are alkyl groups having about 1 to 4 carbons; and X is chloride, bromide, sulfate, bisulfate, nitrate or acetate. Preferably, the quaternary ammonium salt is water-soluble alkyl dimethyl benzyl am- monium chloride having an alkyl chain length from C6 to C24 and, most preferably, it has an alkyl distribution of about 40% C12, 50% C14 and 10% C16.
535697
Davis Dwight P.
Lyons Larry A.
Swered Paul
Betzdearborn Inc.
Borden Ladner Gervais Llp
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