Uses of improved polymer-supported photosensitizers in the generation of singlet oxygen
    2.
    发明授权
    Uses of improved polymer-supported photosensitizers in the generation of singlet oxygen 有权
    改进的聚合物负载的光敏剂在产生单线态氧中的应用

    公开(公告)号:US06774249B2

    公开(公告)日:2004-08-10

    申请号:US09965046

    申请日:2001-09-27

    IPC分类号: C01B1332

    摘要: Improved polymer-immobilized photosensitizer are disclosed as well as methods of preparing and using them. The polymer-immobilized photosensitizers comprise a cross-linked polymer backbone, a plurality of cationic ammonium or phosphonium groups covalently bound to the polymer backbone and an immobilized photosensitizer. The average total number of carbon atoms in the ammonium or phosphonium group is at least four and preferably at least 12. The photosensitizer can be either covalently or ionically bound to the polymer. Polymer-supported photosensitizers of the invention are unexpectedly superior in catalyzing the photosensitized oxidation of compounds containing carbon-carbon double bonds.

    摘要翻译: 公开了改进的聚合物固定化光敏剂以及制备和使用它们的方法。 聚合物固定的光敏剂包括交联的聚合物主链,共价结合到聚合物主链上的多个阳离子铵或鏻基团和固定的光敏剂。 铵或鏻基团中的平均总碳原子数为至少四个,优选至少12.光敏剂可以共价或离子地结合到聚合物上。 本发明的聚合物负载的光敏剂在催化含有碳 - 碳双键的化合物的光敏化氧化方面出人意料地优异。

    Ferroelectric element and process for producing the same
    3.
    发明授权
    Ferroelectric element and process for producing the same 失效
    铁电元件及其制造方法

    公开(公告)号:US06255762B1

    公开(公告)日:2001-07-03

    申请号:US09117377

    申请日:1998-07-29

    IPC分类号: C01B1332

    摘要: A ferroelectric element comprising a ferroelectric material containing at least two metals, the ferroelectric element having been produced by a process including a sol-gel process in the presence of a thickener and/or an association preventive from aqueous solutions of respective salts of the metals. The ferroelectric element is advantageous in that the handling of starting compounds and the production of the ferroelectric element are easy, the storage stability of the starting compound solution is good, the cost is low, the ferroelectric element can be formed as a thin layer, particles on the surface of the thin layer are fine and dense, and, hence, the surface smoothness is good. The ferroelectric element is excellent also in piezoelectric properties and therefore can be advantageously used as a piezoelectric element in a piezoelectric ink jet head.

    摘要翻译: 一种铁电体元件,其包含含有至少两种金属的铁电材料,所述铁电体元件是通过包括溶胶 - 凝胶法在增稠剂存在下和/或与金属的各种盐的水溶液缔合的方法制备的。 铁电元件的优点在于,起始化合物的处理和铁电体元素的制备容易,起始化合物溶液的储存稳定性好,成本低,铁电元件可以形成为薄层,颗粒 薄层表面细致密集,表面光洁度好。 铁电体元件在压电性能方面也是优异的,因此可以有利地用作压电喷墨头中的压电元件。