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US 8,455,411 B2Granted
Lubricant composition based on natural and renewable raw materials
AssigneeKlüber Lubrication München KG
InventorsThomas Kilthau, Martin Schmidt-Amelunxen, Sarah Zirkel
Life of this patent
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Abstract
The invention relates to a lubricant composition based on modified, natural and renewable raw materials, the viscosity of which can be adjusted according to the application. The invention relates more particularly to biodegradable lubricant compositions.
Claims8
A lubricant composition comprising
- (a) 50 to 90 wt % a modified, native triglyceride-based oil with a oleic acid content of at least 60%, chosen from the group consisting of sunflower oil, rapeseed oil, castor oil, linseed oil, corn oil, safflower oil, soybean oil, flaxseed oil, peanut oil, “lesquerella” oil, palm oil, olive oil, and mixtures of the aforementioned oils, wherein the native oil is made to react with a peroxide, and the unsaturated covalent bonds are linked by a radical addition reaction, and
- (b) 5 to 10 wt % additives or additive mixtures,
- (c) 5 to 30 wt % thickening agent,
- wherein the kinematic viscosity of the modified native oil ranges from 100 to 1250 mm2/sec at 40° C.
1 more element
Dependencies are inferred from the claim text.