Esters of aldehyde/amine adducts, their preparation and use...

Details Esters of aldehyde/amine adducts, their preparation and use... Esters of aldehyde/amine adducts, their preparation and use...

C - Chemistry, Metallurgy

07

D

260/299, 253/56

C07D 498/04 (2006.01) C07D 491/22 (2006.01) C08F 8/00 (2006.01) C10L 1/22 (2006.01)

Patent

CA 1062715

ABSTRACT OF THE DISCLOSURE Novel ester derivatives of 1-aza-3,7-dioxabicyclo [3.3.0]oct-5-yl-methyl alcohol are disclosed which are useful in gasoline as rust inhibitors and carburetor detergents; in automatic transmission fluids as friction modifiers and rust inhibitors: and, in automotive and industrial lubricating oils as sludge dispersants, rust-inhibitors, and friction modifiers, the particular use depending on the molecular weight of the ester. These ester derivatives are oil-soluble half ester reac- tion products of (a) about 1 molar proportion of a hydrocarbyl- substituted C4 to C10 dicarboxylic acid or anhydride having about 6 to about 300 carbon atoms per hydrocarbyl group, partly esterified with the reaction product of (b) either about 1 or ? molar proportions of an aldehyde, or one molar proportion of ketone and one molar proportion of aldehyde, reacted with about 1 molar proportion of tris-(hydroxymethyl)aminomethane; the half ester reaction product having a 1-aza-3,7-dioxabicyclo[3.3.0]octyl ring.

247741

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