C - Chemistry – Metallurgy – 10 – M
Patent
C - Chemistry, Metallurgy
10
M
C10M 105/40 (2006.01) C07C 69/30 (2006.01) C07C 69/33 (2006.01) C10M 105/42 (2006.01) C10M 129/74 (2006.01) C10M 129/78 (2006.01)
Patent
CA 2265443
A synthetic ester composition which exhibits thermal and oxidative stability, lower friction coefficient and lower wear, wherein the ester composition comprises the reaction product of: a linear or branched alcohol having the general formula R(OH)n, wherein R is an aliphatic or cyclo-aliphatic group having from about 2 to 20 carbon atoms and n is at least 2; and at least one linear and/or branched acid which has a carbon number in the range between about C4 to C20; wherein the synthetic ester composition has a hydroxyl number of between about greater than 5 to 180, preferably between about greater than 5 to 100, and more preferably between about 10 to 80.
Cette invention concerne une composition d'ester synthétique qui est stable à hautes températures et vis-à-vis de l'oxydation, et qui présente un coefficient de frottement et une usure relativement faibles. Ladite composition estérique comporte le produit de réaction d'un alcool linéaire ou ramifié de formule générale R(OH)n, où R est un groupe aliphatique ou cyclo-aliphatique comportant de 2 à 20 atomes de carbone et n est inférieur à 2, et d'au moins un acide linéaire et/ou ramifié comportant un nombre d'atomes de carbone compris entre 4 et 20, ladite composition estérique synthétique possédant un nombre de groupes hydroxyle compris approximativement entre 5 et 180, de préférence compris approximativement entre 5 et 100, et idéalement compris approximativement entre 10 et 80.
Aldrich Haven S.
Godici Patrick E.
Kim Jeenok T.
Krevalis Martin A.
Pafford Bernie J.
Borden Ladner Gervais Llp
Exxon Chemical Patents Inc.
Exxonmobil Chemical Patents Inc.
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