Preparation of micromultichromal spheres
    3.
    发明授权
    Preparation of micromultichromal spheres 失效
    微复合球的制备

    公开(公告)号:US07172712B2

    公开(公告)日:2007-02-06

    申请号:US10249483

    申请日:2003-04-14

    IPC分类号: B29D11/00 G02B26/00

    摘要: A method of making a multichromal sphere includes the steps of preparing a composition of at least (1) a matrix material and (2) at least two sets of particles, each of the sets of particles having a color different from at least one of another of the sets of particles and a segregation (e.g., an electrical or magnetic) property different from at least one of another of the sets of particles, encapsulating the composition within a shell to form an encapsulated sphere, immobilizing the encapsulated sphere in a manner to restrict at least rotation of the encapsulated sphere, subjecting the immobilized encapsulated sphere to an external field associated with the segregation property different among the sets of particles, under conditions in which the sets of particles are able to migrate within the matrix material, thereby producing color segregation in the immobilized encapsulated sphere, and solidifying the matrix material while substantially maintaining the color segregation. In the multichromal spheres, each of the sets of particles is segregated within a separate segment of the solidified matrix material of the core on the basis of the different segregation property.

    摘要翻译: 制备多重色球的方法包括以下步骤:制备至少(1)基质材料的组合物和(2)至少两组颗粒,每组颗粒具有不同于其它颗粒中的至少一种的颜色 的颗粒组以及不同于另一组颗粒的分离(例如,电或磁)性质,将组合物包封在壳体内以形成封装的球体,将封装的球体以 限制封装球体的至少旋转,使固定的包封球体在与该组颗粒之间不同的分离特性相关联的外部场中,在该组颗粒能够在基体材料内迁移的条件下,由此产生颜色 在固定化的包封球体中分离,并固化基质材料,同时基本上保持颜色偏析。 在多重色粉球中,基于不同的分离性质,将这些颗粒组中的每一组分离在核心的固化基质材料的单独部分内。