Hydrogenated star-shaped polymer

Details Hydrogenated star-shaped polymer Hydrogenated star-shaped polymer

1978-07-21

1979-05-29

Michl, Paul R.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C08K 501

Patent

active

041566734

ABSTRACT:
A viscosity index-improver for lubricating oil compositions is disclosed. This viscosity index improver is a hydrogenated star-shaped polymer comprising a poly(poly-alkenyl coupling agent) nucleus and at least four polymeric arms linked to the nucleus wherein the arms are hydrogenated homopolymers and copolymers of conjugated dienes, hydrogenated copolymers of conjugated dienes and monoalkenyl arenes, or mixtures thereof.

REFERENCES:
patent: 3668125 (1972-06-01), Anderson
patent: 3700633 (1972-10-01), Wald
patent: 3700748 (1972-10-01), Winkler
patent: 3823203 (1974-07-01), De La Mare
patent: 3827999 (1974-08-01), Crossland
patent: 3985830 (1976-10-01), Fetters

Affiliated with

Also associated with

Rating

Hydrogenated star-shaped polymer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hydrogenated star-shaped polymer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydrogenated star-shaped polymer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-230505