Antifoam additives for use in low viscosity lubricating oil applications

Antifoam additives for use in low viscosity lubricating oil applications

A lubricant composition comprising a major amount of a base oil having a kinematic viscosity between 2 and 8 cSt at 100°C and a minor amount of an additive composition represented by formula IV: wherein x and y can be the same or different and (x + y) equals between 50 and 1,500 and m and n can be t...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: CARROLL, JOSEPH B, GAUTHIER, DIANE
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CHEMISTRY
FUELS
LUBRICANTS
LUBRICATING COMPOSITIONS
METALLURGY
PEAT
PETROLEUM, GAS OR COKE INDUSTRIES
TECHNICAL GASES CONTAINING CARBON MONOXIDE
USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION
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Beschreibung
Zusammenfassung:A lubricant composition comprising a major amount of a base oil having a kinematic viscosity between 2 and 8 cSt at 100°C and a minor amount of an additive composition represented by formula IV: wherein x and y can be the same or different and (x + y) equals between 50 and 1,500 and m and n can be the same or different and Q is hydrogen or a monovalent organic group selected from the group consisting of C1-C8 alkyl, acetyl and isocyanato group of the formula -NCO.