Additive for improving the viscosity index of lubricating oils a

Details Additive for improving the viscosity index of lubricating oils a Additive for improving the viscosity index of lubricating oils a

1974-03-12

1976-10-12

Gantz, Delbert E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

252 59, 260676R, C07C 502

Patent

active

039858219

ABSTRACT:
An additive, adapted to improve the viscosity index of a mineral or synthetic lubricating oil, is prepared from polymeric material of very high viscosity boiling above 175.degree.C, and obtained through polymerization of normal alpha-olefines having the general formula R--CH = CH.sub.2, wherein R is an alkyl radical containing from 2 to 16 carbon atoms, in the presence of a TiCl.sub.4 /polyiminoalane catalyst, in a substantially inert atmosphere which may contain hydrogen up to a manometer pressure of 1 kg/cm.sup.2, by distilling said polymeric material so that the fraction boiling at a temperature below 350.degree.C at atmospheric pressure is removed therefrom, and catalytically hydrogenating the balance thereof to produce the desired end product.

REFERENCES:
patent: 3149178 (1964-09-01), Hamilton et al.
patent: 3637503 (1972-01-01), Giannetti et al.
patent: 3737477 (1973-06-01), Stearns et al.
patent: 3763244 (1973-10-01), Shubkin
patent: 3795616 (1974-03-01), Heilman et al.
patent: 3798284 (1974-03-01), Tesei et al.
patent: 3836596 (1974-09-01), Driscoll
patent: 3842134 (1974-10-01), Pratt
patent: 3845157 (1974-10-01), Woo
patent: 3851011 (1974-11-01), Stearns et al.
georgi "Motor Oils & Engine Lubrication" (1950) pp. 204-205.

Affiliated with

Also associated with

Rating

Additive for improving the viscosity index of lubricating oils a does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Additive for improving the viscosity index of lubricating oils a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Additive for improving the viscosity index of lubricating oils a will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-942391