Polyalkene-substituted carboxylic acid compositions having...

C - Chemistry – Metallurgy – 08 – F

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C08F 8/46 (2006.01)

Patent

CA 2391270

The residual chlorine content of a polyolefin-substituted carboxylic acylating 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 of the polyolefin .alpha., .beta.-unsaturated carboxylic reactant, a high speed mixer provided with a dual pitch blade.

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