Varnish-inhibiting dispersants for lubricating oils

Details Varnish-inhibiting dispersants for lubricating oils Varnish-inhibiting dispersants for lubricating oils

C - Chemistry, Metallurgy

07

F

260/304, 253/56,

C07F 5/04 (2006.01) C08F 8/42 (2006.01) C10L 1/30 (2006.01) C10M 133/58 (2006.01) C10M 135/32 (2006.01)

Patent

CA 1100141

ABSTRACT OF THE DISCLOSURE Borated derivatives of (a) hydrocarbyl-substituted mono- and bis-oxazolines obtained as a reaction product of hydrocarbyl- substituted dicarboxylic acid, ester, or anhydride, for example, p?butenylsuccinic anhydride with from 1 to 2 molar equivalents of a 2,2-disubstituted-2-amino-1-alkanols, such as trio-(hydroxymethyl- amino)methane (THAM); and (b) lactone-oxazolines obtained as a reaction product of hydrocarbyl-substituted lactone carboxylic acids, for example, polybutyl lactone carboxylic acid, with 2,2-disubstituted-2- amino-1-alkanols, such as tris-(hydroxymethyl)aminomethane (THAM), and their derivatives are useful additives in lubricating oils since the sludge dispersant and/or varnish-inhibiting properties of said oil are enhanced.

292654

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