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US 4,539,125 AGranted
Water-based metal-working fluid
AssigneeIdemitsu Kosan Co., Ltd.
InventorMikio Sato
Life of this patent
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Abstract
Water-based metal-working fluid which contains a compound represented by the general forumla (I) ##STR1## or further contains at least one compound selected from the group consisting of the compounds represented by the general formulae (II), (III) and (IV). ##STR2## Metal-working fluid of the present invention has a superior spoilage-inhibiting effect.
Claims3
A method of inhibiting a water-based metal-working fluid from spoilage which comprises including in the water-based metal-working fluid the combination of:
- (A) a mineral oil,
- (B) a spoilage inhibiting compound selected from the group consisting of the compounds represented by the formulae:
- ##STR17## and (C) a phosphorous compound selected from the group consisting of the compounds represented by the formula:
- ##STR18## wherein R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are sec.-alkyl groups containing 6 carbon atoms.
1 more element
Dependencies are inferred from the claim text.