Fine latex and seed method of making

    公开(公告)号:US06372838B1

    公开(公告)日:2002-04-16

    申请号:US09604889

    申请日:2000-06-28

    IPC分类号: C08K502

    摘要: The present invention provides a two-step method of making a latex in a highly fluorinated liquid solvent, including a first step of polymerizing together a mixture of: i) 1-2 parts by weight of one or more non-fluorinated free-radically-polymerizable monomers, and ii) 1-9 parts by weight of one or more highly fluorinated macromers terminated at one or more sites with free-radically-polymerizable groups to form a dispersion of seed particles; and a second step of polymerizing together said seed particles with an additional 10-1,000 percent by weight, relative to the total weight of the seed particles, of one or more non-fluorinated free-radically-polymerizable monomers. The present invention additionally provides a fine latex comprising a highly fluorinated liquid solvent and dispersed particles having an average particle size of 250 nm or less and more preferably 200 nm or less. The latexes of the present invention may be useful in an electrophoretic display.

    Scorch safety of curable fluoroelastomer compositions
    82.
    发明授权
    Scorch safety of curable fluoroelastomer compositions 失效
    可固化含氟弹性体组合物的焦烧安全性

    公开(公告)号:US5756588A

    公开(公告)日:1998-05-26

    申请号:US932504

    申请日:1997-09-18

    CPC分类号: C08K5/0025 C08K5/13

    摘要: This invention provides a curable fluoroelastomer composition comprising: (A) a fluorine-containing polymer or a blend of fluorine-containing polymers each comprising interpolymerized units derived from one or more fluorine-containing ethylenically unsaturated monomers; (B) an aromatic polyhydroxy crosslinking agent; (C) at least one organo-onium compound; and (D) a monohydroxyfunctional phenol. The compositions provide for a method of improving scorch safety of curable fluoroelastomer compositions.

    摘要翻译: 本发明提供了一种可固化的含氟弹性体组合物,其包含:(A)含氟聚合物或含氟聚合物的共混物,其各自包含衍生自一种或多种含氟烯属不饱和单体的共聚单元; (B)芳族多羟基交联剂; (C)至少一种有机鎓化合物; 和(D)单羟基官能苯酚。 该组合物提供了改善可固化的含氟弹性体组合物的焦烧安全性的方法。

    Coating composition and method of making and using the same
    87.
    发明授权
    Coating composition and method of making and using the same 有权
    涂料组合物及其制备和使用方法

    公开(公告)号:US08633263B2

    公开(公告)日:2014-01-21

    申请号:US13201288

    申请日:2010-03-16

    IPC分类号: C08K9/00

    摘要: Compositions include an aqueous continuous liquid phase and core-shell particles dispersed in the aqueous continuous liquid phase. Each core-shell particle includes a polymer core surrounded by a shell consisting essentially of nonporous spherical silica particles disposed on the polymer core, wherein the nonporous spherical silica particles have a volume average particle diameter of 60 nanometers or less. Methods of making and using the compositions to coat a substrate are also disclosed.

    摘要翻译: 组合物包括分散在水性连续液相中的水性连续液相和核 - 壳颗粒。 每个核 - 壳颗粒包括由基本上由设置在聚合物芯上的无孔球形二氧化硅颗粒组成的壳包围的聚合物芯,其中无孔球形二氧化硅颗粒的体积平均粒径为60纳米或更小。 还公开了制备和使用组合物涂覆基材的方法。

    Highly water repellent fluoropolymer coating
    88.
    发明授权
    Highly water repellent fluoropolymer coating 有权
    防水氟聚合物涂层

    公开(公告)号:US08632856B2

    公开(公告)日:2014-01-21

    申请号:US12091855

    申请日:2006-12-20

    IPC分类号: B05D3/02

    摘要: Highly water repellent coated articles may be made by applying to a substrate a coating having dispersed therein or sprinkled thereon partially or fully fluorinated polymer microparticles. The coating includes a partially fluorinated hexafluoropropylene copolymer binder in a nonfluorinated solvent that dissolves the binder and does not dissolve the microparticles. The coating is heated sufficiently to bond the microparticles to the binder but not so much as to cause the receding water contact angle for the coating to fall below 80°.

    摘要翻译: 可以通过将具有分散在其中的涂层或其上部分或完全氟化的聚合物微粒上的涂布施加到基底上来制备高度防水的涂覆制品。 涂层包括在非氟化溶剂中的部分氟化的六氟丙烯共聚物粘合剂,其溶解粘合剂并且不溶解微粒。 将涂层充分加热以将微粒结合到粘合剂上,但不会使涂层的后退水接触角降至80°以下。