Moisture resistant polyimide compositions
    4.
    发明授权
    Moisture resistant polyimide compositions 有权
    耐湿聚酰亚胺组合物

    公开(公告)号:US08912272B2

    公开(公告)日:2014-12-16

    申请号:US12339920

    申请日:2008-12-19

    摘要: The invention relates to a moisture resistant composition comprising: a) from 20 to 80 weight percent based on the total weight of the composition of a polyetherimide copolymer made from a monomer mixture comprising 3,3′ bisphenol-A dianhydride (BPADA), and 4,4′-diaminodiphenyl sulfone (DDS); b) from 5 to 75 weight percent based on the total weight of the composition of polyetheretherketone (PEEK); and c) from 0 to 30 weight percent based on the total weight of the composition of a filler. The invention relates to a reflector substrate comprising a moisture resistant layer metalized with a reflective layer, wherein the moisture resistant layer comprising the moisture resistant composition. The invention relates to a method for producing a metalized coating without a primer comprising applying a reflective layer directly to a moisture resistant layer in the absence of a primer, wherein the moisture resistant layer comprises the moisture resistant composition.

    摘要翻译: 本发明涉及一种防潮组合物,其包含:a)基于由包含3,3'双酚A二酐(BPADA)的单体混合物制成的聚醚酰亚胺共聚物的组合物总重量的20至80重量% ,4'-二氨基二苯砜(DDS); b)基于聚醚醚酮(PEEK)组合物的总重量为5至75重量%; 和c)基于填料组合物的总重量,0至30重量%。 本发明涉及一种反射器基板,其包括用反射层金属化的防潮层,其中防潮层包括防湿组合物。 本发明涉及一种生产没有底漆的金属化涂层的方法,包括在不存在底漆的情况下将反射层直接涂覆在防潮层上,其中防潮层包括防湿组合物。

    Polycarbonate with Reduced Color
    5.
    发明申请
    Polycarbonate with Reduced Color 有权
    聚碳酸酯减少颜色

    公开(公告)号:US20080004379A1

    公开(公告)日:2008-01-03

    申请号:US11688551

    申请日:2007-03-20

    IPC分类号: C08G64/08

    CPC分类号: C08K5/49 C08L69/00

    摘要: A method of making polycarbonate includes the steps of forming polycarbonate by a melt transesterification method using an activated diaryl carbonate, and compounding the polycarbonate with a phosphorus-containing compound that has an abstractable proton or hydrolyzable group. The phosphorus-containing compound is compounded with the polycarbonate in an amount sufficient to result in an improvement in the color properties of the polycarbonate as compared to pellets formed from the same polycarbonate without addition of the phosphorus-containing compound.

    摘要翻译: 制备聚碳酸酯的方法包括通过使用活化的碳酸二芳基酯的熔体酯交换法形成聚碳酸酯的步骤,并将聚碳酸酯与具有可抽提的质子或可水解基团的含磷化合物混合。 含磷化合物与聚碳酸酯混合,其量足以导致与不加入含磷化合物相同的聚碳酸酯形成的粒料相比,聚碳酸酯的着色性能得到改善。