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发明公开
CN103421181A 聚苯醚粉体的制造方法 无效 - 驳回 转让

聚苯醚粉体的制造方法
摘要：
本发明的课题在于提供一种聚苯醚粉体的制造方法，该方法能减少使用溶剂量，在不存在积垢附着等故障的条件下制造出微粉率适当、运输性良好的聚苯醚粉体。一种聚苯醚粉体的制造方法，所述制造方法具有在析出槽中添加将酚类化合物聚合而成的聚合物溶液与不良溶剂并使聚苯醚析出从而生成浆料的析出工序，在添加到析出槽的聚合物溶液中，将聚苯醚在良溶剂溶液中的浓度设为X质量%、将析出工序中进料到析出槽内的不良溶剂与聚合物溶液中的良溶剂的质量比(不良溶剂/良溶剂)设为Y时，X与Y满足式(I)、(II)：30
摘要（英）：

An object of the invention is to provide a production method for polyphenylene ether powder. The method can reduce solvent consumption and produce the polyphenylene ether powder with appropriate micro powder rate and good transportability under conditions without defects such as crud attachment. The production method for the polyphenylene ether powder comprises a precipitation step for generating a slurry by adding a polymer solution made by polymerization of a phenolic compound and a poor solvent in a precipitation tank and precipitating polyphenylene ether. In the polymer solution added in the precipitation tank, when a concentration of polyphenylene ether in a good solvent is set as X (mass%) and a mass ratio (poor solvent/good solvent) of the poor solvent fed in the precipitation tank to the good solvent in the polymer solution is set as Y, X and Y meet a formula (I) and a formula (II): 30-0.9804*(X/100)-0.4602<=Y<= 18 .032*(X/100) 2-1.1873* (X/100)-0.3463 ... (II).

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