Polyphenylene ether-alkenyl aromatic polymer blends having organobromine
additives
    2.
    发明授权
    Polyphenylene ether-alkenyl aromatic polymer blends having organobromine additives 失效
    具有有机溴添加剂的聚苯醚 - 链烯基芳族聚合物共混物

    公开(公告)号:US4927858A

    公开(公告)日:1990-05-22

    申请号:US377260

    申请日:1989-07-10

    IPC分类号: C08J9/00

    CPC分类号: C08J9/0023 C08J9/0019

    摘要: Certain organobromines are added to blends of polyphenylene ether and alkenyl aromatic polymer to reduce mold cool time of the composition. These organobromines also reduce residual blowing agent in the composition after expansion and especially following molding of the composition. The organobromines of this invention are as follows:tetrabromocyclooctanehexabromocyclododecanetetrabromovinylcyclohexenebis(allyl ether) of tetrabromobisphenol A

    摘要翻译: 将某些有机溴加入到聚苯醚和烯基芳族聚合物的共混物中以减少组合物的模具冷却时间。 这些有机溴还可减少膨胀后组合物中的残留发泡剂,特别是在组合物成型后。 本发明的有机溴如下:四溴环辛烷四溴环丁烷四溴乙烯基环己烯四溴双酚A的双(烯丙基醚)

    Method of making styrene-type polymer comprising suspension
polymerization conducted in aqueous medium containing combination of
polyvinyl alcohol and sulfonated polystyrene or sulfonated
styrene-maleic anhydride copolymer
    3.
    发明授权
    Method of making styrene-type polymer comprising suspension polymerization conducted in aqueous medium containing combination of polyvinyl alcohol and sulfonated polystyrene or sulfonated styrene-maleic anhydride copolymer 失效
    制备苯乙烯型聚合物的方法,其包括在含有聚乙烯醇和磺化聚苯乙烯或磺化苯乙烯 - 马来酸酐共聚物的组合的水性介质中进行的悬浮聚合

    公开(公告)号:US4730027A

    公开(公告)日:1988-03-08

    申请号:US393220

    申请日:1982-06-28

    IPC分类号: C08F2/20 C08F12/08

    CPC分类号: C08F12/08

    摘要: There is described a method of making a styrene-type polymer composition which comprises a step of suspension polymerizing a styrene-type monomer composition in an aqueous medium comprising water, polyvinyl alcohol and a water-soluble sulfonated polystyrene, a water-soluble sulfonated styrene-maleic anhydride copolymer or a mixture thereof. Optionally, the styrene-type monomer composition may contain a rubbery material as a toughening agent. Optionally, the suspension polymerization step may be conducted subsequent to a prepolymerization step conducted in mass.

    摘要翻译: 描述了一种制备苯乙烯型聚合物组合物的方法,其包括将苯乙烯类单体组合物悬浮聚合在包含水,聚乙烯醇和水溶性磺化聚苯乙烯的水性介质中的步骤,水溶性磺化苯乙烯 - 马来酸酐共聚物或其混合物。 任选地,苯乙烯类单体组合物可以含有作为增韧剂的橡胶状材料。 任选地,悬浮聚合步骤可以在以质量进行的预聚合步骤之后进行。