C - Chemistry – Metallurgy – 23 – F
Patent
C - Chemistry, Metallurgy
23
F
C23F 11/10 (2006.01) C11D 1/04 (2006.01) C11D 1/24 (2006.01) C11D 1/34 (2006.01) C23G 1/00 (2006.01) C23G 1/10 (2006.01) C23G 1/12 (2006.01)
Patent
CA 2240497
A chromium and ferricyanide free aqueous cleaner/deoxidizer for aluminum and titanium and their alloys contains strong acid, fluoride ions, aryl quaternary ammonium ions, and di-anionic functional substituted compounds containing at least two aryl groups per molecule. Excellent cleaning and deoxidizing with substantially no etching is achieved.
Cette invention se rapporte à un agent nettoyant/désoxydant aqueux exempt de chrome et de ferricyanure, pour l'aluminium et le titane et leurs alliages, cet agent contenant un acide fort, des ions fluorure, des ions d'ammonium quaternaire aryle, et des composés substitués fonctionnels di-anioniques contenant au moins deux groupes aryle par molécule. Une excellente action nettoyante et désoxydante est obtenue, pratiquement sans attaque.
Carlson Lawrence R.
Johnson Philip M.
Henkel Corporation
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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