Carboxylic acid acylating agents, derivatives thereof,...

Details Carboxylic acid acylating agents, derivatives thereof,... Carboxylic acid acylating agents, derivatives thereof,...

C - Chemistry, Metallurgy

10

M

253/107, 253/57,

C10M 129/95 (2006.01) C08F 8/46 (2006.01) C10M 129/93 (2006.01) C10M 133/52 (2006.01) C10M 159/12 (2006.01)

Patent

CA 1094044

L-1593 TITLE: NOVEL CARBOXYLIC ACID ACYLATING AGENTS, DERIVATIVES THEREOF, CONCENTRATE AND LUBRICANT COMPOSITIONS CONTAINING THE SAME, AND PROCESSES FOR THEIR PREPARATION INVENTOR: Norman Anthony Meinhardt and Kirk Emerson Davis ABSTRACT OF THE DISCLOSURE: Carboxylic acid acylating agents are derived from poly- alkenes such as polybutenes, and a dibasic, carboxylic reactant such as maleic or fumaric acid or certain deriva- tives thereof. These acylating agents are characterized in that the polyalkenes from which they are derived have a Mn value of about 1300 to about 5000 and a Mw/Mn value of about 1.5 to about 4. The acylating agents are further charac- terized by the presence within their structure of at least 1.3 groups derived from the dibasic, carboxylic reactant for each equivalent weight of the groups derived from the poly- alkene. The acylating agents can be reacted with a further reactant subject to being acylated such as polyethylene polyamines and polyols (e.g., pentaerythritol) to produce derivatives useful per se as lubricant additives or as intermediates to be subjected to post-treatment with various other chemical compounds and compositions, such as epoxides, to produce still other derivatives useful as lubricant additives.

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