Process for Production of Polymer Powders Containing Vinylformamide Units
    6.
    发明申请
    Process for Production of Polymer Powders Containing Vinylformamide Units 有权
    含有乙烯基甲酰胺单元的聚合物粉末的生产工艺

    公开(公告)号:US20080319150A1

    公开(公告)日:2008-12-25

    申请号:US12090366

    申请日:2006-10-27

    IPC分类号: C08F20/54

    CPC分类号: C08F226/02

    摘要: A process for producing a polymer powder comprising vinylformamide units by free radical polymerization of an aqueous solution of N-vinylformamide and if appropriate other monomers and drying the polymer which comprises an aqueous monomer solution comprising N-vinylformamide and at least one polymerization initiator being spray dispensed as an aerosol or dropletized at the top of a heatable tower-shaped reactor, then polymerizing the aerosol or droplets in an inert gas atmosphere to form a finely divided solid and discharging the finely divided polymer from the reactor.

    摘要翻译: 一种制备包含乙烯基甲酰胺单元的聚合物粉末的方法,其通过N-乙烯基甲酰胺水溶液的自由基聚合和如果合适的其它单体和干燥包含含有N-乙烯基甲酰胺和至少一种聚合引发剂的单体水溶液的聚合物被喷雾分配 作为气雾剂或在可加热的塔状反应器的顶部液滴化,然后在惰性气体气氛中聚合气溶胶或液滴以形成细碎的固体并从细胞中排出细碎的聚合物。

    Process For Preparing Precipitation Polymers By Spray Polymerization
    8.
    发明申请
    Process For Preparing Precipitation Polymers By Spray Polymerization 审中-公开
    通过喷雾聚合制备沉淀聚合物的方法

    公开(公告)号:US20080194778A1

    公开(公告)日:2008-08-14

    申请号:US11911232

    申请日:2006-04-24

    IPC分类号: C08F2/06

    CPC分类号: C08F220/04 C08F2/14 C08F2/16

    摘要: A process for preparing precipitation polymers by spray polymerization of a monomer solution comprising at least one ethylenically unsaturated monomer and at least one solvent, the monomer being soluble in the solvent, and the polymer obtained by the polymerization of the monomer being insoluble in the solvent, and also the use of the polymers for thickening liquids.

    摘要翻译: 通过包含至少一种烯属不饱和单体和至少一种溶剂的单体溶液的喷雾聚合制备沉淀聚合物的方法,所述溶剂是可溶于溶剂的单体,以及通过聚合单体不溶于溶剂获得的聚合物, 以及聚合物用于增稠液体的使用。