When polymerizing olefinic monomers, such as vinyl halides, vinylidene halides, and vinylidene monomers having at least one terminal CH2 =C< grouping, and mixtures thereof, in the presence of said coating, polymer build up on {HEAD ~ the inner surfaces} of {TAIL ~ the reaction vessel} is substantially eliminated 
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When polymerizing olefinic monomers , such as vinyl halides , vinylidene halides , and vinylidene monomers having at least one terminal CH2 = C < grouping , and mixtures thereof , in the presence of said coating , polymer build up on { HEAD ~ the inner surfaces } of { TAIL ~ the reaction vessel } is substantially eliminated
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