Patent ID: 8796189
Filing Date: 2014-08-05
Classification: C10M,C10N

Abstract:
1. A gear oil composition, comprising: a) a major amount of base oil comprising a mixture of a mineral base oil and polybutene present in an amount of greater than 10 wt %, based on the total weight of the gear oil composition; b) 0.1 to 0.5 wt % of carbon black, based on the total weight of the gear oil composition, wherein the carbon black consists of unit particles of amorphous carbon with the unit particles linking together into chains; c) 0.001 to 30 wt % of at least one additive selected from dispersants, detergents, antifoaming agents, antioxidants, rust inhibitors, metal passivators, extreme pressure agents, friction modifiers, and mixtures thereof, based on the total weight of the gear oil composition; and with the gear oil composition having a kinematic viscosity at 100° C. of from 10 mm