Texaco Inc.

Phillip B Valkovich

Kechia J Chou

Benjamin J Kaufman

Robert A Sawicki

Kenneth G Hammond

Joseph B Biasotti

Polymers, such as polyisobutylene or ethylene-propylene copolymers, are functionalized by reaction with an activated imine to yield novel polymers.

Method of functionalizing polymers

Polymers, such as polysiobutylene or ethylene-propylene copolymers, are functionalized by reaction with an activated imine to yield novel polymers.

Polymer containing a polyisobutylene-derived backbone

Polymers with amino-methyl-propene-2-yl groups contaiing

Lubricating oil containing a polymer having a functionalized backbone

Described are novel enaminones of the formula: ##STR1## wherein R is a lower alkyl or oxyalkyl group having 1 to 5 carbon atoms, R.sub.1 is an alkyl group having from 1 to 200 carbon atoms or a similar alkyl group substituted by nitrogen, oxygen or other inert substituents; R.sub.2 is hydrogen or an alkyl group having from 1 to 20 carbon atoms; R.sub.3 is an alkyl or substituted alkyl group having from 1 to 20 carbon atoms. These products are prepared by the reaction of a 1,3-dicarbonyl compound and a primary or secondary amine analog. In neat or mixed form, the present compounds are useful as dispersants-detergents in oleaginous compositions.

N-substituted enaminones and oleaginous compositions containing same

Polymers containing amine functionality, prepared by hydrolyzing polymers bearing carbamate functionality, may be converted to dispersants useful in lubricating oils.

Amine-polymer dispersants in lubricating oils and a method of improving

A quaternary ammonium salt composition represented by the formula: ##STR1## in which R is a hydrocarbyl radical having from 25 to 200 carbon atoms, x is a number from 2 to 4, y has a value from 0 to 4, R' is a hydrocarbyl radical having from 1 to 10 carbon atoms, and z is a number from 0 to 2, is provided, as well as a method of preparation and a lubricating oil composition containing same.

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Spring, TX, United States of America

Phillip B Valkovich