C - Chemistry – Metallurgy – 10 – M
Patent
C - Chemistry, Metallurgy
10
M
C10M 173/02 (2006.01) C10M 145/02 (2006.01) C10M 169/04 (2006.01)
Patent
CA 2196773
A stearate free solid lubricant for cold working of metals contains approximately equal amounts of an alkene-acrylate ionomer and an alkoxylated alcohol in which the alcohol moiety has from 18-60 carbon atoms and the alkoxylate block has about the same number of carbon atoms. This lubricant can be conveniently applied from aqueous solution/suspension and works effectively even when the underlying steel surface has no conversion coating, which is usually required with stearate lubricants for best results.
La présente invention concerne un lubrifiant solide sans stéarate destiné à l'usinage des métaux. Ce lubrifiant contient des quantités approximativement égales d'un ionomère d'alcène-acrylate et d'un alcool alcoxylaté dans lequel la fraction alcool comporte de 18 à 60 atomes de carbone et le bloc alcoxylate comporte environ le même nombre d'atomes de carbone. Ce lubrifiant peut s'utiliser avantageusement sous forme d'une solution/suspension aqueuse, et conserve son efficacité même lorsque la surface d'acier qu'il recouvre ne présente pas de couche de conversion, ce qui est d'habitude nécessaire pour les lubrifiants au stéarate lorsqu'on veut obtenir un résultat optimal.
Church Richard J.
Hacias Kenneth J.
Fetherstonhaugh & Co.
Henkel Corporation
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