C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
402/340, 402/368
C07D 215/10 (2006.01) C07D 215/12 (2006.01) C08G 73/06 (2006.01) C23F 11/04 (2006.01) C23F 11/14 (2006.01)
Patent
CA 1334670
Novel oligomeric quinolinium salts are disclosed. These are formed by reacting quinoline oligomers with alkylating agents such as benzyl halide, p-.alpha.-xylenyl dihalide and alkyl sulfates. The novel oligomeric quinolinium salts are useful as metal corrosion inhibitors, and especially as aqueous acid corrosion inhibitors. The novel compounds are repre- sented by the formulae: Image , Image and Image wherein n and m are integers, with n being greater than 2 and up to about 200 and m being equal to or greater than 1, R is H or an alkyl group having from 1 to about 20 carbon atoms, R1 is an alkyl group having 1 to about 20 carbon atoms, X- is a chloride, bromide or iodide and Z- is an anion selected from BF4-, SO4=, ClO4-, PF6- and HSO4-.
590120
Borden Ladner Gervais Llp
Exxon Research And Engineering Company
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