Light-stabilized polymer microparticles containing epoxy groups
    1.
    发明授权
    Light-stabilized polymer microparticles containing epoxy groups 失效
    含有环氧基的光稳定聚合物微粒

    公开(公告)号:US4894399A

    公开(公告)日:1990-01-16

    申请号:US202724

    申请日:1988-06-03

    摘要: Light-stabilized polymer microparticles, which contain at least one light stabilizer and free epoxy groups, and processes for the preparation of these microparticles by polymerization of suitable monomers, at least one of these monomers being an epoxide which contains at least one further reactive group, and at least part of the polymerization being carried out in the presence of at least one light stabilizer, are described. The polymer microparticles can be used in coating compositions which comprise a disperse phase, containing these particles, and a liquid continuous phase.Coatings and paints based on the compositions according to the invention are distinguished by improved weathering resistance, in particular high light stability.

    摘要翻译: 含有至少一种光稳定剂和游离环氧基的光稳定的聚合物微粒,以及通过合适的单体的聚合制备这些微粒的方法,这些单体中的至少一种是含有至少一个其它反应性基团的环氧化物, 并且至少部分聚合在存在至少一种光稳定剂的情况下进行。 聚合物微粒可用于包含含有这些颗粒的分散相和液体连续相的涂料组合物中。 基于根据本发明的组合物的涂料和涂料的特征在于改善的耐候性,特别是高的光稳定性。

    Titanocenes and their use
    3.
    发明授权
    Titanocenes and their use 失效
    Titanocenes及其用途

    公开(公告)号:US4963470A

    公开(公告)日:1990-10-16

    申请号:US469736

    申请日:1990-01-19

    摘要: Titanocenes with silylated .pi.-cyclopentadienyl ligands in which one or two carbo- or heterocyclic aromatic rings are bonded to the titanium, the aromatic rings being substituted by fluorine, --CF.sub.3, --C.sub.2 F.sub.5, --CF.sub.2 CL or --CF.sub.2 CH.sub.3 in at least one of the two ortho-positions relative to the metal-carbon bonds, are suitable as photoinitiators for the photopolymerization of ethylenically unsaturated substrates. They are distinguished by a high sensitivity, stability to air and the action of heat, and a high activity in the region of UV light to visible light. They are furthermore readily soluble in the photopolymerizable compositions.

    摘要翻译: 具有甲硅烷基化的1,2-环戊二烯基配位体的二十碳烯烃,其中一个或两个碳环或杂环芳环与钛键合,芳环被氟取代,-CF 3,-C 2 F 5,-CF 2 Cl或-CF 2 CH 3在两个 相对于金属 - 碳键的邻位适用作用于烯属不饱和基材的光聚合的光引发剂。 它们的特征在于高灵敏度,对空气的稳定性和热的作用,以及在紫外光到可见光区域的高活性。 它们还易溶于可光聚合组合物。