Prevention of microbial growth in metal working fluids

C - Chemistry – Metallurgy – 10 – M

Patent

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Details

C10M 169/04 (2006.01) C10M 101/00 (2006.01) C10M 131/10 (2006.01) C10M 133/42 (2006.01) C10M 133/48 (2006.01) C10M 135/36 (2006.01) C10M 173/00 (2006.01)

Patent

CA 2468738

A method of preventing microbial growth in oil-water metalworking fluid in a machine wherein lubricating oil or hydraulic or tapping fluid can contaminate the metalworking fluid, comprises adding a partitionable anti-microbial agent, active against micro-organisms present in the metalworking fluid, to the lubricating oil or hydraulic or tapping fluid whereby an effective quantity of anti-microbial agent can migrate into the metalworking fluid to reduce micro- organism activity. A machine tool lubricating oil or hydraulic or tapping fluid composition comprises in a mineral oil or other lubricant base and an oil-water partitionable anti-microbial, active against micro-organisms present in oil-water metalworking fluids.

L'invention concerne un procédé destiné à empêcher la croissance microbienne dans un liquide de travail du métal huile-eau à l'intérieur d'une machine, l'huile de lubrification ou le liquide hydraulique ou de taraudage pouvant contaminer ce liquide de travail du métal. Ce procédé consiste à ajouter un agent antimicrobien divisible, lequel est actif contre les micro-organismes présents dans le liquide de travail du métal, dans l'huile de lubrification ou le liquide hydraulique ou de taraudage, une quantité efficace d'agent antimicrobien pouvant migrer dans le liquide de travail du métal de façon à réduire l'activité des micro-organismes. Une composition d'huile de lubrification ou de liquide hydraulique ou de taraudage pour machine-outil comprend une huile minérale ou une autre base lubrifiante ainsi qu'un agent antimicrobien divisible huile-eau actif contre les micro-organismes présents dans les liquides de travail du métal huile-eau.

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