C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 215/80 (2006.01) C07C 215/50 (2006.01) C09D 5/08 (2006.01) C23F 11/08 (2006.01) C23F 11/14 (2006.01)
Patent
CA 2297803
The invention concerns novel N-alkyl-hydroxybenzylamines of formula (I) in which: R¿1? and R¿2?, which are identical or different, represent a hydrogen atom or a monohydroxylated or polyhydroxylated C¿1?-C¿8? alkyl radical, provided that R¿1? and R¿2? do not simultaneously represent each a hydrogen atom; Q represent a -OH or -NH¿2? radical; Z represents a hydrogen atom or the group (a) in which R¿1? and R¿2? have the same definitions as above and Y¿1? and Y¿2? represent a hydrogen atom or the radical -OH, provided that Y¿1? and Y¿2? do not simultaneously represent each a hydrogen atom. The invention is useful for treating metal surfaces both against corrosion and for improving subsequent paint adherence.
Les N-alkyl-hydroxybenzylamines de formule (I) dans laquelle R1 et R2, qui sont identiques ou différents l'un de l'autre, représentent un atome d'hydrogène ou un radical alkyle en C1 à C8 mono- ou polyhydroxylé, R1 et R2 ne pouvant représenter simultanément chacun un atome d'hydrogène, Q représente un radical -OH ou -NH2, Z représente un atome d'hydrogène ou le groupement (a) dans lequel R1 et R2 ont les significations indiquées plus haut et, Y1 et Y2 représentent un atome d'hydrogène ou le radical -OH, Y1 et Y2 ne pouvant représenter simultanément chacun un atome d'hydrogène, sont utiles pour traitements des surfaces métalliques tant contre la corrosion qu'en faveur d'une amélioration ultérieure d'adhérence des peintures.
Bonnin Joel
Cheminaud Jean-Claude
Droniou Patrick
Gagnepain Stephane
Gasse Jean-Jacques
Cfpi Industries
Goudreau Gage Dubuc
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