COPOLYMERS MADE WITH ALLYL-TERMINATED POLYOLEFINS AND UNSATURATED ACIDIC REAGENTS, DISPERSANTS USING SAME, AND METHODS OF MAKING SAME
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United States of America Patent
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Oct 14, 2015
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Jul 18, 2008
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Abstract
Copolymers made with allyl-terminated polyolefins and unsaturated acidic reactants, dispersants using same, and methods of making same are provided. Under one aspect, a copolymer of an unsaturated acidic reactant and high molecular weight polyolefin, wherein the polyolefin comprises an allyl-terminated polymeric product, is provided. The allyl-terminated polymeric product is formed, e.g., by forming a quasi-living tert-halide terminated polyolefin under suitable quasi-living conditions, and contacting the tert-halide terminated polyolefin with an allylsilane compound and a Lewis acid. In some embodiments, the allylsilane compound includes allyltrimethylsilane.
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