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PROCEDE POUR LE REVETEMENT DE REACTEURS DE POLIMERIZATION ET REACTEURS AINSI OBTENUS
PROCEDE POUR LE REVETEMENT DE REACTEURS DE POLIMERIZATION ET REACTEURS AINSI OBTENUS
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机译:涂布聚合反应器的工艺及所获得的反应器
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摘要
This invention relates to a polymerization reaction vessel having a coating on the inner surfaces thereof resulting from applying thereto a coating composition containing the reaction product of (1) the self-condensation product of a polyhydric phenol, or (2) the condensation product of two or more polyhydric phenols, or (3) the self-condensation product of a polyhydric naphthol, with a bleaching material, such as, for example, sodium hypochlorite (NaOCl), dissolved in an aqueous alkaline solution. When polymerizing olefinic monomers, such as vinyl halides, vinylidene halides, and vinylidene monomers having at least one terminal CH2=C group, and mixtures thereof, polymer buildup on the inner surfaces of the reaction vessel is substantially reduced. Further, multiple charges or batches of polymer can be made in said internally coated reaction vessel without opening the same between charges thus preventing the escape of unreacted monomer(s) to the surrounding atmosphere.
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机译:本发明涉及一种聚合反应容器,该聚合反应容器的内表面具有涂层,该聚合反应容器是通过向其施加包含以下组分的涂料组合物而得到的:(1)多元酚的自缩合产物,或(2)两种缩合产物的缩合产物。或更多种多元酚,或(3)多元萘酚与漂白剂(例如次氯酸钠(NaOCl))的自缩合产物,该漂白剂溶解在碱性水溶液中。当聚合烯烃单体,例如具有至少一个末端CH 2 = C <基的乙烯基卤化物,亚乙烯基卤化物和亚乙烯基单体,以及它们的混合物时,在反应容器的内表面上的聚合物堆积显着减少。此外,可以在所述内部涂覆的反应容器中制备多个装料或一批聚合物,而无需在装料之间打开它们,从而防止未反应的单体逃逸到周围大气中。
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