Improved dispersant additives and process

Details Improved dispersant additives and process Improved dispersant additives and process

C - Chemistry, Metallurgy

10

M

C10M 159/12 (2006.01) C08F 6/04 (2006.01) C08F 8/00 (2006.01) C10L 1/198 (2006.01) C10L 1/238 (2006.01) C10L 1/24 (2006.01) C10L 1/30 (2006.01) C10M 133/52 (2006.01) C10M 159/16 (2006.01)

Patent

CA 2236528

The invention pertains to improved lubricating oil dispersants wherein a fractionating polymer is prepared prior to functionalization (e.g., in the Koch reaction) for making dispersant additives. In one aspect, it was discovered that by fractionating a polymer to remove light hydrocarbon and unreacted monomer from the polymer before the carbonylation step of the Koch reaction, the amount of light ester impurities generated was minimized. Light ester is an undesirable byproduct that adversely affects the recycle of the catalyst from the functionalization step of the Koch reaction. The invention also pertains to improved lubricating oil nitrogen-containing dispersant additives derived from fractionated polymer.

L'invention concerne des dispersants améliorés pour huiles lubrifiantes, dans lesquels un polymère de fractionnement est préparé avant la fonctionnalisation (par exemple dans la réaction de Koch) de façon à produire des additifs dispersants. Dans un aspect de l'invention, il a été découvert qu'en fractionnant un polymère pour en extraire les hydrocarbures légers et le monomère n'ayant pas réagi, avant l'étape de carbonylation de la réaction de Koch, on pouvait minimiser la quantité d'impuretés d'esters légers générées. L'ester léger est un sous-produit indésirable qui perturbe le recyclage du catalyseur à partir de l'étape de fonctionnalisation de la réaction de Koch. L'invention concerne également des additifs dispersants améliorés contenant de l'azote, destinés aux huiles lubrifiantes et dérivés du polymère fractionné.

Affiliated with

Also associated with

Rating

Improved dispersant additives and process does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Improved dispersant additives and process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Improved dispersant additives and process will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1406908