POLYALKENE-SUBSTITUTED CARBOXYLIC ACID COMPOSITIONS HAVING REDUCED CHLORINE CONTENT
The residual chlorine content of a polyolefin-substituted carboxylic acylati ng agent formed by a chlorine-assisted reaction of a polyolefin and an .alpha., .beta.-unsaturated carboxylic reactant can be reduced by heating the polyolefin-substituted carboxylic acylating agent having a residual chlori...
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Format: | Patent |
Sprache: | eng ; fre |
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Zusammenfassung: | The residual chlorine content of a polyolefin-substituted carboxylic acylati ng agent formed by a chlorine-assisted reaction of a polyolefin and an .alpha., .beta.-unsaturated carboxylic reactant can be reduced by heating the polyolefin-substituted carboxylic acylating agent having a residual chlorine content in the presence of an .alpha., .beta.- unsaturated carboxylic reactant, optionally in the further presence of a sulfonic acid. Residual chlorine content can be further reduced by using, in the reaction o f the polyolefin .alpha., .beta.-unsaturated carboxylic reactant, a high speed mix er provided with a dual pitch blade. |
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