Dispersant mannich base compositions

Details Dispersant mannich base compositions Dispersant mannich base compositions

C - Chemistry, Metallurgy

08

G

253/90

C08G 14/12 (2006.01) C08F 8/32 (2006.01) C08G 14/06 (2006.01) C10M 159/16 (2006.01) C10M 159/22 (2006.01)

Patent

CA 1119579

ABSTRACT OF THE DISCLOSURE DISPERSANT MANNICH BASE COMPOSITIONS New Mannich bases and their alkaline earth metal salts are prepared by condensing formaldehyde and a polyamine with a sulfur-containing phenolic mixture consisting of (1) from 5 to 40% of a sulfurized alkyl- phenol, and (2) from 95 to 60% of phenol alkylated with polyisobutene of 16 to 128 carbon atoms or a mixture of said phenol alkylated with polyisobutene and phenol alkylated with a propylene tetramer. They are useful as additives for lubricating oils, particularly for use in marine cylinder lubricating oils.

324791

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