US 2020/0270544 A1 · GEAR LUBRICANT COMPOSITION

Abstract

A gear lubricant composition includes at least 97% by weight, based on the total weight of the lubricant composition, of at least one hydrocarbon-based oil that includes a weight content of isoparaffins ranging from 90 to 0%, a weight content of normal paraffins ranging from 0 to 10% and a carbon content of biological origin greater than or equal to 90% relative to the total weight of the oil, at least 0.01% by weight, based on the total weight of the lubricant composition, of at least one additive selected among the anti-wear additives, extreme pressure additives, anti-corrosion additives, additives having metal-deactivating properties, anti-foam additives, anti-oxidant additives selected among the phenolic anti-oxidants, and the mixtures thereof.

Claims18

Dependent claims

-15. (canceled)

A method for lubricating a gear, the method comprising applying a lubricant composition onto gears, the lubricant composition comprising:

at least 97 weight %, relative to the total weight of the lubricant composition, of at least one hydrocarbon oil which has a weight content of isoparaffins ranging from 90 to 100%, a weight content of normal paraffins ranging from 0 to 10% and a carbon content of biological origin equal to or higher than 90% relative to the total weight of the hydrocarbon oil;
and
at least 0.01 weight %, relative to the total weight of the lubricant composition, of at least one additive selected from among anti-wear additives, extreme-pressure additives, anticorrosion additives, metal-deactivators, anti-foam additives, antioxidant additives selected from among phenolic antioxidants, and mixtures thereof.

A gear lubricant composition comprising:

at least 97 weight %, relative to the total weight of the lubricant composition, of a hydrocarbon oil which has a weight content of isoparaffins in the range of from 90 to 100%, a weight content of normal paraffins in the range of from 0 to 10%, and a carbon content of biological origin equal to or higher than 90% relative to the total weight of the hydrocarbon oil;
and
at least 0.01 weight %, relative to the total weight of the lubricant composition, of at least one additive selected from among anti-wear additives, extreme-pressure additives, anticorrosion additives, metal-deactivators, anti-foam additives, phenolic antioxidant additives, and mixtures thereof, and
with the proviso that if said additive is a phenolic antioxidant, then said phenolic antioxidant is contained in an amount of a least 0.015 weight % relative to the total weight of the lubricant composition.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

16/761,605Filed 8 Nov 2018

Priority

FR 17605589 Nov 2017

Published

27 Aug 2020

Term ends

Not estimatedThe source records don’t support an estimate.

Classification50 codes

C10M 101/02
Lubricating compositions characterised by the base-material being a mineral or fatty oil: petroleum fractions
C10M 169/04
Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials,…:…
C10M 101/025
Petroleum fractions: waxes
C10M 125/24
Lubricating compositions characterised by the additive being an inorganic material: compounds containing phosphorus, arsenic or antimony

Gear lubricant composition

Life of this patent

Gear lubricant composition

Life of this patent

Abstract

Claims18