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PROCEDURES FOR RADICAL POLYMERISATION OF ETHYLENICAL YOUNG MONOMERS IN WATER MEDIUM

机译：水介质中的乙烯基青年单体自由基聚合的程序

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PCT No. PCT/EP95/04830 Sec. 371 Date Jan. 3, 1997 Sec. 102(e) Date Jan. 3, 1997 PCT Filed Dec. 7, 1995 PCT Pub. No. WO96/17875 PCT Pub. Date Jun. 13, 1996A process for the radical polymerization of ethylenically unsaturated monomers in an aqueous medium has (a) the starting solution used for the polymerization and the educts required for polymerization such as monomers, germ latex, buffering agents, emulsifiers and/or protective colloids are introduced into a pre-mixing device and thoroughly mixed, heated before being transferred to the polymerization vessel to the polymerization temperature, no initiator being used if a thermal radical initiator is used and only individual initiator components being used where a redox initiator system is used; (b) once the mixture has reached polymerization temperature, it is transferred to a polymerization vessel, the wall of which during the transfer and polymerization is maintained by cooling at a temperature below the polymerization temperature; polymerization is started by adding the thermal initiator or additional initiator components of the redox initiator system, the other educts being added at the start of and/or during polymerization; and (c) once the polymerization is finished and the pressure differential between the polymerization vessel and degassing vessel has been reduced to 3 bar or less, the polymer dispersion is let out into a degassing vessel and degassed by applying heat and/or a vacuum.
机译：PCT号PCT / EP95 / 04830秒371日期1997年1月3日102（e），1997年1月3日，PCT，1995年12月7日，PCT公开。 WO96 / 17875 PCT公开号日期为1996年6月13日，用于在水介质中进行烯键式不饱和单体的自由基聚合的方法具有（a）用于聚合的起始溶液和聚合所需的离析物，例如单体，胚乳，缓冲剂，乳化剂和/或将保护性胶体引入预混合设备中，充分混合，加热，然后转移到聚合容器中，直至达到聚合温度;如果使用热自由基引发剂，则不使用引发剂，而在氧化还原引发剂系统中仅使用单独的引发剂组分用来; （b）一旦混合物达到聚合温度，就将其转移到聚合容器中，该容器在转移和聚合过程中通过在低于聚合温度的温度下冷却而保持其壁;通过加入热引发剂或氧化还原引发剂体系的其他引发剂组分来开始聚合，其他离析物在聚合开始时和/或聚合过程中加入; （c）一旦聚合完成并且聚合容器和脱气容器之间的压差减小到3巴或更低，则将聚合物分散体放到脱气容器中并通过施加热量和/或真空进行脱气。

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