C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
253/136, 260/607
C07C 217/28 (2006.01) C07C 323/25 (2006.01) C10L 1/222 (2006.01) C10L 1/24 (2006.01) C10M 133/08 (2006.01) C10M 135/08 (2006.01) C10M 135/24 (2006.01)
Patent
CA 1278313
Nitrogen-containing additives for non-aqueous functional fluids Abstract of the Disclosure The invention relates to non aqueous functional fluids which contain at least one compound of formula I Image (I) wherein X is -O-, -S-, -SO-, -SO2-, -C(O)-O or -N(R3)-, in which R3 is hydrogen or C1-C12alkyl, R1 is unsubstituted C1-C4alkyl or C2-C5alkyl substituted by one to three hydroxyl groups, R2 is hydrogen, unsubstituted C1-C4alkyl or C2-C5alkyl substituted by one to three hydroxyl groups, with the proviso that at least one of the residues R1 or R2 is hydroxy-substituted, and wherein R is C2-C20- alkyl, a residue -CH2-CH(OH)-CH2-NR1R2, in which R1 and R2 have their previous significance, or R is C2-C18alkenyl, C2-C3alkynyl or C5-C12cycloalkyl, with the proviso that, when X is -O- or -C(O)-O-, R is branched C4-C20alkyl, especially a tertiary alkyl group. The compounds of formula I are very suitable as corrosion inhibitors for non-aqueous functional fluids.
503663
O'neil Robert M.
Phillips Emyr
Wirth Hermann O.
Ciba-Geigy Investments Ltd.
Fetherstonhaugh & Co.
O'neil Robert M.
Phillips Emyr
Wirth Hermann O.
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