Base oil of lubricating oil for mechanical apparatuses with orif

Details Base oil of lubricating oil for mechanical apparatuses with orif Base oil of lubricating oil for mechanical apparatuses with orif

1988-05-02

1989-08-15

Howard, Jacqueline V.

Compositions

Electrolytes for electrical devices

252 327E, 252 45, 252 325, 252 336, 252 496, 252 18, 252 22, C10M14514

Patent

active

048572209

ABSTRACT:
A base oil for a lubricating oil and a lubricating oil composition containing said base oil, which are to be used in a mechanical apparatus with an orifice mechanism, are disclosed. The base oil has a kinematic viscosity at 40.degree. C. or 3 to 500 cSt, a pour point of -25.degree. C. or lower and a cloud point of -25.degree. C. or lower. The lubricating oil composition contains as major components (A) the above base oil and (B) at least one additive selected from a viscosity index improver, a pour point depressant, an extreme pressure agent, an anti-wear agent, an oiliness agent and an antioxidant. The base oil and the lubricating oil composition are excellent in working properties at low temperatures and thus can be effectively used in a mechanical apparatus with an orifice mechanism, particularly to be used at low temperatures.

REFERENCES:
patent: 3869396 (1975-03-01), Van de Kraats
patent: 4146492 (1979-03-01), Cusano et al.
patent: 4149984 (1979-04-01), Wenzel et al.
patent: 4776967 (1988-10-01), Ichihaski et al.

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