Lactone-modified, mannich base dispersant additives useful...

Details Lactone-modified, mannich base dispersant additives useful... Lactone-modified, mannich base dispersant additives useful...

C - Chemistry, Metallurgy

10

M

253/110, 402/59

C10M 159/16 (2006.01) C08G 63/685 (2006.01) C10L 1/22 (2006.01)

Patent

CA 1303777

ABSTRACT OF THE DISCLOSURE Poly (C5-C9 lactone) modified Mannich base adducts are made by reacting a C5-C9 lactone, an amine, an aldehyde, and a hydrocarbyl substituted, hydroxy aromatic compound, e.g. a polyisobutenyl phenol which, in turn, preferably is made by reacting a polymer of a C2 to C10 monoolefin, preferably polylsobutylene, having a molecular weight of about 700 to 10,000, with a hydroxy aromatic compound. The resulting adducts are useful per se as oil soluble dispersant additives. They are also useful in fuel and lubricating oil compositions, as well as in concentrates and additive packages.

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