C - Chemistry – Metallurgy – 10 – M
Patent
C - Chemistry, Metallurgy
10
M
C10M 169/04 (2006.01) C10M 133/00 (2006.01) C10M 133/04 (2006.01) C10M 133/08 (2006.01) C10M 133/16 (2006.01) C10M 133/52 (2006.01) C10M 133/54 (2006.01) C10M 133/56 (2006.01)
Patent
CA 2177261
A method of controlling the friction coefficients and improving the friction durability of an oleaginous composition, such as an ATF, comprising adding to the composition a combination of competing additives comprising (1) at least one friction modifying chemical additive having a polar head group and a friction reducing substituent group and (2) at least one non-friction reducing additive and/or friction increasing additive having the same polar group as the friction modifying chemical additive, but having a substituent group which has no material friction raising or lowering effect (non-friction reducing additive) or a substituent group which increases the friction coefficients (friction increasing additive) of the composition.
Procédé pour réguler le coefficient de frottement et pour accroître la tenue au frottement d'un produit oléagineux tel que de l'ATF, consistant à lui ajouter une combinaison d'additifs concurrents, dont (1) au moins un additif chimique modifiant le frottement ayant un groupe de tête polaire et un groupe substituant de réduction du frottement; et (2) au moins un additif ne réduisant pas le frottement et/ou un additif augmentant le frottement et présentant le même groupe polaire que l'additif chimique modifiant le frottement, mais présentant soit un groupe de substituant ne réduisant pas le frottement, soit un groupe de substituant accroissant le coefficient de frottement du produit.
Bloch Ricardo Alfredo
Nibert Roger Keith
Ryer Jack
Watts Raymond Frederick
Borden Ladner Gervais Llp
Exxon Chemical Patents Inc.
Exxonmobil Chemical Patents Inc.
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