Particles modified by copolymers of olefinically unsaturated monomers
    7.
    发明申请
    Particles modified by copolymers of olefinically unsaturated monomers 审中-公开
    由烯属不饱和单体的共聚物改性的颗粒

    公开(公告)号:US20090048380A1

    公开(公告)日:2009-02-19

    申请号:US12282234

    申请日:2007-03-22

    IPC分类号: C09D133/06 C08K3/30

    摘要: Particles, especially nanoparticles, being coated with copolymers (A) of olefinically unsaturated monomers (a), preparable by single-stage or multistage controlled free-radical copolymerization in an aqueous medium of (a1) at least one olefinically unsaturated monomer containing at least one chelate-forming group and (a2) at least one olefinically unsaturated monomer different from olefinically unsaturated monomer (a1) and selected from the group consisting of (a21) monomers of the general formula (I): R1R2C═CR3R4, in which the radicals R1, R2, R3, and R4 each independently are hydrogen atoms or substituted or unsubstituted alkyl, cycloalkyl, alkylcycloalkyl, cycloalkylalkyl, aryl, alkylaryl, cycloalkylaryl, arylalkyl or arylcycloalkyl radicals, with the proviso that at least two of the variables R1, R2, R3 and R4 are substituted or unsubstituted aryl, arylalkyl or arylcycloalkyl radicals, especially substituted or unsubstituted aryl radicals, (a22) olefinically unsaturated terpene hydrocarbons, and (a23) dimeric alpha-alkylvinylaromatics. They are suitable as a polyether filler, for adhesives as well.

    摘要翻译: 颗粒,特别是纳米颗粒,其涂覆有烯属不饱和单体(a)的共聚物(A),其可通过在(a1)至少一种含至少一种烯属不饱和单体的烯属不饱和单体的水性介质中通过单级或多级控制的自由基共聚合制备 螯合形成基团和(a2)至少一种不同于烯属不饱和单体(a1)的烯属不饱和单体,选自(a21)通式(I)的单体:R1R2C-CR3R4,其中基团R1 ,R 2,R 3和R 4各自独立地为氢原子或取代或未取代的烷基,环烷基,烷基环烷基,环烷基烷基,芳基,烷基芳基,环烷基芳基,芳基烷基或芳基环烷基,条件是至少两个变量R1,R2,R3 和R 4是取代或未取代的芳基,芳基烷基或芳基环烷基,特别是取代或未取代的芳基,(a22)烯属不饱和萜烯氢 碳氢化合物和(a23)二聚α-烷基乙烯基芳烃。 它们适合作为聚醚填料,也适用于粘合剂。