Phosphonate adducts of olefinic lubricants having enhanced...

Details Phosphonate adducts of olefinic lubricants having enhanced... Phosphonate adducts of olefinic lubricants having enhanced...

C - Chemistry, Metallurgy

07

F

260/300, 253/67,

C07F 9/547 (2006.01) C10M 107/48 (2006.01) C10M 111/04 (2006.01) C10M 137/12 (2006.01) C10M 153/02 (2006.01) C10M 159/12 (2006.01) C10M 169/04 (2006.01)

Patent

CA 1339453

Oligomers of C6-C20 alpha-olefins, such a 1-decene, with branch ratios below 0.19 and high viscosity indices (HVI) can be funtionalized to provide unique phosphite derivatives. Functionalized polyalpha-olefin (HVI-PAO) lubricant compositions with superior properties are prepared by adding functionalized organophosphites to the terminal olefinic bond of HVI-PAO. The invention encompasses a process for the preparation of lubricant range hydrocarbons containing phosphonate functional groups, the process comprising: reacting olefinic C30+ polyalpha-olefin oligomers having a branch ratio of less than 0.19 and phosphite ester in a mixture with a peroxide catalyst at elevated temperature whereby phosphite ester adduct of the polyalpha-olefin is formed; and separating the reaction mixture products and recovering the adduct.

603662

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