Method for the manufacture of prepregs and their use
    8.
    发明授权
    Method for the manufacture of prepregs and their use 失效
    制备预浸料及其用途的方法

    公开(公告)号:US4783345A

    公开(公告)日:1988-11-08

    申请号:US132404

    申请日:1987-12-14

    CPC分类号: C08G59/5086 H05K1/0326

    摘要: Prepregs can be prepared by impregnating reinforcement materials such as glass, carbon or plastic (in the form of fibers or nonwoven or woven materials) with a solution of a polyepoxy resin and a polyamine as a hardener and subsequent drying. For the manufacture of storage-stable prepregs based on polyepoxy resins, 1,3,5-tris(3-amino-4-alkylphenyl-2,4,6-trioxo-hexahydrotriazine with a C.sub.1 - to C.sub.4 alkyl radical is used as the hardener. The new method leads to storage-stable prepregs and assures that composite materials, especially circuit boards, manufactured therefrom meet the requirements for these materials.

    摘要翻译: 通过用聚环氧树脂和多胺作为硬化剂的溶液浸渍增强材料如玻璃,碳或塑料(以纤维或非织造材料或编织材料的形式)可以制备预浸料,随后干燥。 为了制备基于聚环氧树脂的储存稳定的预浸料,使用具有C1-至C4烷基的1,3,5-三(3-氨基-4-烷基苯基-2,4,6-三氧代六氢三嗪)作为 这种新方法导致储存稳定的预浸料,并确保由其制造的复合材料,特别是电路板满足这些材料的要求。

    DIELECTRIC ELEMENT, AND MAGNETIC RESONANCE IMAGING METHOD USING SAME
    9.
    发明申请
    DIELECTRIC ELEMENT, AND MAGNETIC RESONANCE IMAGING METHOD USING SAME 有权
    电介质元件和使用相同的磁共振成像方法

    公开(公告)号:US20070279054A1

    公开(公告)日:2007-12-06

    申请号:US11756780

    申请日:2007-06-01

    IPC分类号: G01V3/00

    CPC分类号: G01R33/28 G01R33/5659

    摘要: A dielectric element for positioning on an examination subject for locally influencing the B1 field distribution during magnetic resonance data acquisition contains a relaxation agent bound to mutually separated particles. The relaxation agent incorporates a paramagnetic substance. In a corresponding method for acquiring magnetic resonance data from an examination subject, such a dielectric element is positioned on the examination subject for locally influencing the B1 field distribution, by homogenizing the B1 field of a magnetic resonance apparatus.

    摘要翻译: 用于定位在检查对象上用于在磁共振数据采集期间局部影响B1场分布的电介质元件包含与相互分离的颗粒结合的松弛剂。 松弛剂包含顺磁性物质。 在用于从检查对象获取磁共振数据的相应方法中,这样的电介质元件位于检查对象上,用于局部影响B 1场分布,通过使B< 1& 磁共振装置。