Compositions – Electrolytes for electrical devices
Patent
1990-09-27
1992-07-21
Howard, Jacqueline
Compositions
Electrolytes for electrical devices
252 50, 252 495, 72 42, C10M17300, C10M13302
Patent
active
051320460
ABSTRACT:
A metal working process employs a metal working fluid which is water-based and which is one of neutral and basic, the metal working fluid including a corrosion inhibitor in an amount ranging from 0.1 to 10% by weight; a lubricant selected from the group consisting of mono- or dicarboxylic acids or esters thereof having more than 10 carbon atoms, organic phosphate esters containing one or two hydrocarbon groups having 6-18 carbon atoms, and nonionic alkylene oxide adducts having a molecular weight above 400, and mixtures thereof; and an antimicrobially active amount towards fungi and bacteria of at least one alkanolamine compound having the following general formula ##STR1## wherein R is an acyclic hydrocarbon group having 8-14 carbon atoms, A is an hydroxyalkyl group having 2-4 carbon atoms, and X is one of hydrogen. The at least one alkanolamine compound prevents microbial degradation of water-based fluids when included therein.
REFERENCES:
patent: 4749503 (1988-01-01), Bennett et al.
patent: 4925582 (1990-05-01), Bennett
patent: 4938891 (1990-07-01), Lenack et al.
patent: 4976919 (1990-12-01), Skold et al.
Edebo Lars
Sandin Michael
Berol Nobel Stenungsund AB
Howard Jacqueline
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