NO902671L - LUBRICATING OIL ADDITIVES. - Google Patents

LUBRICATING OIL ADDITIVES.

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Publication number
NO902671L
NO902671L NO90902671A NO902671A NO902671L NO 902671 L NO902671 L NO 902671L NO 90902671 A NO90902671 A NO 90902671A NO 902671 A NO902671 A NO 902671A NO 902671 L NO902671 L NO 902671L
Authority
NO
Norway
Prior art keywords
lubricating oil
xer
monoamine
polyamine
oil additives
Prior art date
Application number
NO90902671A
Other languages
Norwegian (no)
Other versions
NO902671D0 (en
Inventor
Stephen James Cook
Sean Patrick O'connor
Original Assignee
Bp Chemicals Additives
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB888824381A external-priority patent/GB8824381D0/en
Application filed by Bp Chemicals Additives filed Critical Bp Chemicals Additives
Publication of NO902671L publication Critical patent/NO902671L/en
Publication of NO902671D0 publication Critical patent/NO902671D0/en

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  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Lubricants (AREA)

Abstract

Fremgangsmåte for fremstilling av et dispergerings-middel/ VI-forbedrende middel for bruk i ferdige smøreoljesammensetnlnger, Innbefattende omsetning 1 et normalt flytende, vesentlig inert organisk oppløs-ningsmlddel av (a) en kopolymer av et olefin og en monomer som har strukturen:. hvor X og Xer like eller forskjellige, forutsatt at minst en av X og Xer slik at kopolymeren kan virke som karboksylisk acyleringsmiddel(b) et succinimid, og (c) et primært eller sekundært amin eller en blanding derav. Foretrukne kopolymerer omfatter maleinsyre-anhydrid som en komonomer. I en foretrukket utførelse av oppfinnelsen er aminet et monoamin, og et. polyamin blir også tilsatt; monoaminet og polyaminet tilsettes til reaksjonsmediet før tilsetning av succinlmidet.A process for the preparation of a dispersant / VI improver for use in finished lubricating oil compositions. wherein X and Xer are the same or different, provided that at least one of X and Xer so that the copolymer can act as a carboxylic acylating agent (b) a succinimide, and (c) a primary or secondary amine or a mixture thereof. Preferred copolymers include maleic anhydride as a comonomer. In a preferred embodiment of the invention, the amine is a monoamine, and a. polyamine is also added; the monoamine and polyamine are added to the reaction medium before the addition of the succinide.

NO902671A 1988-10-18 1990-06-15 LUBRICATING OIL ADDITIVES. NO902671D0 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB888824381A GB8824381D0 (en) 1988-10-18 1988-10-18 Lubricating oil additive composition
PCT/GB1989/001225 WO1990004628A1 (en) 1988-10-18 1989-10-17 Lubricating oil additives

Publications (2)

Publication Number Publication Date
NO902671L true NO902671L (en) 1990-06-15
NO902671D0 NO902671D0 (en) 1990-06-15

Family

ID=26294529

Family Applications (1)

Application Number Title Priority Date Filing Date
NO902671A NO902671D0 (en) 1988-10-18 1990-06-15 LUBRICATING OIL ADDITIVES.

Country Status (1)

Country Link
NO (1) NO902671D0 (en)

Also Published As

Publication number Publication date
NO902671D0 (en) 1990-06-15

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