New esters and ester compositions

C - Chemistry – Metallurgy – 07 – C

Patent

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Details

C07C 69/34 (2006.01) C07C 67/08 (2006.01) C07C 69/44 (2006.01) C10M 105/44 (2006.01)

Patent

CA 2374308

The invention relates to new esters and ester compositions based on a polyol, a dicarboxylic acid and a monocarboxylic acid, a process for their preparation and their use in hydraulic fluids and metal working fluids. The new esters and ester compositions have improved clean burning and lubricity properties when used in/as metal working fluids, especially rolling fluids. The new esters and ester compositions have improved biodegradability and thermal and oxidative stability properties when used in/as hydraulic fluids.

L'invention concerne de nouveaux esters et compositions d'esters basés sur un polyol, un acide dicarboxylique, et un acide monocarboxylique. L'invention concerne également un procédé pour leur préparation et leur utilisation dans des fluides hydrauliques et des fluides de travail des métaux. Ces nouveaux esters et compositions d'esters ont de meilleures propriétés de brûlage de nettoiement et de lubrification lorsqu'on les utilise dans/en tant que fluides de travail de métaux, en particulier les fluides de roulement. Ces nouveaux esters et compositions d'esters ont également une biodégradabilité accrue et une meilleure stabilité thermique et oxydative lorsqu'on les utilise dans/en tant que fluides hydrauliques.

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