C - Chemistry – Metallurgy – 10 – M
Patent
C - Chemistry, Metallurgy
10
M
C10M 173/00 (2006.01) B01F 17/42 (2006.01) C10M 173/02 (2006.01)
Patent
CA 2734575
The application pertains to the use of an alkoxylated fatty alcohol characterized by the general formula (I), RO- (CH2-CHR' -O)n(CH2CH2-O)m -H (I) wherein R stands for a saturated and/or unsaturated alkyl moiety, containing 12 to 22 C- Atoms, R' is a methyl-, ethyl- or propyl-group, m represents a number of 1 to 12, and preferably 4 to 10, n represents a number of 1 to 10, and preferably 2 to 8, as emulsifier in metal working fluids, containing at least water and one oily component, non-miscible with water, and optionally further ingredients, characterized in that the fatty alcohol which forms the R moiety has a iodine value of 15 to 75 g I2 /100g.
La présente invention concerne lutilisation dun alcool gras alcoxylé de formule générale (I), RO-(CH2-CHR' -O)n(CH2CH2-O)m -H (I), dans laquelle R représente une fraction alkyle saturée et/ou insaturée, contenant 12 à 22 atomes de C; R est un groupe méthyle, éthyle ou propyle; m représente un nombre de 1 à 12, et de préférence de 4 à 10; n représente un nombre de 1 à 10, et de préférence de 2 à 8, en tant quémulsifiant dans des fluides de travail de métaux, contenant au moins de leau et un constituant huileux, non miscible avec leau, et éventuellement dautres ingrédients. Linvention se caractérise en ce que lalcool gras qui forme la fraction R présente un indice diode compris entre 15 et 75 g I2 /100g.
Hof Matthias
Luedtke Tanja
Cognis Ip Management Gmbh
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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