The Lubrizol Corporation

Philip W Pike

Richard W Jahnke

Bryan A Grisso

Matthew D Gieselman

John Kent Pudelski

Christopher L Friend

Christopher J Kolp

Michael J Covitch

Renee A Eveland

A composition of the reaction product of (a) an isobutylene-diene copolymer having thereon groups containing carboxylic acid functionality or reactive equivalent thereof, derived from an &#x3b1;,&#x3b2;-unsaturated carboxylic compound; and (b) an amine component comprising at least one aromatic amine containing at least one N&#x2014;H group capable of condensing with said carboxylic acid functionality, is a useful dispersant viscosity modifier.

Dispersant viscosity modifiers based on diene-containing polymers

The reaction product of an alkylenediamine, each amino group thereof being a primary or secondary amino group; with at least two equivalents of an acrylamidoalkanesulfonic acid or a salt thereof, wherein each amine nitrogen atom of said alkylenediamine is reacted with a single molecule of the acrylamidoalkane sulfonic acid or salt thereof provides a useful surfactant or hydrotrope.

Sulfonated alkylamines as degreasers and hydrotropes

Disulfonated alkylamines as degreasers and hydrotropes

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Concord, OH, United States of America

Philip W Pike