Abstract

An ecological, biodegradable, fluid lubricant and anti-freezing composition for hydraulic systems contains glycol, corrosion inhibitors and antifoaming agents, and must be diluted in water, either before or after it is fed into the hydraulic system, including a shock absorber, preferably in a concentration of 30% to 70% by volume of the composition and of 30% to 70% by volume water.

IPC Classes  ?

• C10M 105/14 - Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing oxygen having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms polyhydroxy
• C10M 105/32 - Esters
• C10M 173/02 - Lubricating compositions containing more than 10% water not containing mineral or fatty oils
• C10N 40/08 - Hydraulic fluids, e.g. brake-fluids
• C07C 31/20 - Dihydroxylic alcohols

Abstract

An ecological, biodegradable, fluid lubricant and anti-freezing composition for hydraulic systems contains: a base oil of group V, such as adipic acid diesters, an anti-oxidising additive such as diphenylamines, and an anti-foaming additive, such as a silicone-free combination of hydrocarbons, vegetable fatty acids and glycols.

IPC Classes  ?

• C10M 105/32 - Esters
• C10M 105/14 - Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing oxygen having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms polyhydroxy
• C10M 111/04 - Lubricating compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups , each of these compounds being essential at least one of them being a macromolecular organic compound
• C10N 40/08 - Hydraulic fluids, e.g. brake-fluids
• C07C 69/44 - Adipic acid esters
• C07C 69/48 - Azelaic acid esters
• C07C 69/80 - Phthalic acid esters