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    • 9. 发明授权
    • Process for the preparation of microencapsulated polymers
    • 微囊化聚合物的制备方法
    • US06251314B1
    • 2001-06-26
    • US09326745
    • 1999-06-04
    • Olaf HalleWerner StrüverDavid Bryan HarrisonWolfgang Podszun
    • Olaf HalleWerner StrüverDavid Bryan HarrisonWolfgang Podszun
    • B01J1302
    • C08F2/18
    • The present invention relates to a process for the preparation of microencapsulated polymers having a high surface smoothness, a soluble fraction of less than 6%, and a swelling index of between 1.3 and 9 by polymerizing a microencapsulated monomer mixture suspended in an aqueous phase containing at least one hydroxyaromatic compound as polymerization inhibitor, wherein the microencapsulated monomer mixture contains (a) 34 to 99.7% by weight of a monomer having one polymerizable C═C double bond, (b) 0.1 to 15% by weight of a crosslinking agent having at least 2 polymerizable C═C double bonds, (c) 0.2 to 1.0% by weight of at least one aliphatic peroxyester as polymerization initiator, and (d) 0 to 50% by weight of additives, the percentages being based on the sum of the components (a) to (c).
    • 本发明涉及一种制备具有高表面平滑度,可溶性分数小于6%,溶胀指数在1.3和9之间的微囊化聚合物的方法,该方法是将悬浮在含有 至少一种羟基芳族化合物作为聚合抑制剂,其中所述微胶囊化单体混合物含有(a)34-99.7重量%的具有一个可聚合C = C双键的单体,(b)0.1-15重量%的交联剂,其具有 至少2个可聚合的C = C双键,(c)0.2-1.0重量%的至少一种脂族过氧酯作为聚合引发剂,和(d)0-50重量%的添加剂,百分比基于 组分(a)至(c)。