C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 207/412 (2006.01) C07D 401/14 (2006.01) C07D 403/14 (2006.01) C07D 405/14 (2006.01) C08F 8/32 (2006.01) C08F 8/46 (2006.01) C10L 1/22 (2006.01) C10M 133/16 (2006.01) C10M 133/52 (2006.01) C10M 137/10 (2006.01) C10M 141/08 (2006.01) C10M 141/10 (2006.01) C10M 163/00 (2006.01)
Patent
CA 2083547
Succinic ester-amides are formed by (A) reacting (i) at least one substantially aliphatic polymer of at least one lower olefin, and (ii) an acidic reactant or a mixture of two or more acidic reactants represented by the general formula R-CO-CH=CH-CO-R' wherein R and R' are independently -OH, -o-lower alkyl, a halogen atom, or taken together are a single oxygen atom; the process being characterized in that: a) the substantially aliphatic polymer is comprised predomi- nantly or entirely of polyisobutene, at least 50% of the polyisobutene content of such polymer having an end group represented by the formula (see formula I) b) the mole ratio of said acidic reactant(s): said poly- mer(s) is at least 1 : 1; c) the reaction mixture is maintained under superatmospheric pressure during at least a substantial portion of the re- action period; and d) said acylating agent is characterized by having an average total tar rating as determined by the method described in the specification hereof that is at least 25% lower than the average total tar rating of a corres- ponding product made in the same way under the same reaction conditions using a polyisobutene containing up to 10% of the above-depicted end group; and (B) reacting such acylating agent with at least one alcohol (pre- ferably a polyhydric alcohol) and amine (preferably a polyamine having at least one primary amino group). Combinations of succinimides, succinic esters, and succinic ester-amides formed using such acylating agents are used in combination with other additives in forming lubricant compositions.
Degonia David J.
Griffin Paul G.
Afton Chemical Corporation
Ethyl Petroleum Additives Inc.
Macrae & Co.
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