Process and products of purification of anhydrosugar alcohols
    2.
    发明授权
    Process and products of purification of anhydrosugar alcohols 有权
    脱氢葡萄糖醇的纯化方法和产物

    公开(公告)号:US06670033B1

    公开(公告)日:2003-12-30

    申请号:US09857574

    申请日:2001-11-27

    IPC分类号: D02G300

    摘要: A process for the formation of a purified anhydrosugar alcohol is disclosed, whereby the resultant purified anhydrosugar alcohol has a purity of at least 99.8% and is substantially colorless. The anhydrosugar alcohol is purified by distillation, recrystallization from methanol, ethanol or ethylene glycol, melt recrystallization, or a combination thereof. Preferably, the purification is by distillation followed by recrystallization from methanol, ethanol or ethylene glycol. A test for determining the purity of the anhydrosugar alcohol is disclosed, wherein the color of the anhydrosugar alcohol after annealing at a temperature of at least 260° C. for at least four hours is examined. Alternatively, purity can be determined by examination of ultraviolet (UV) transmittance of the purified anhydrosugar alcohol at various wavelengths. The purified anhydrosugar alcohol may be incorporated into a polymer such as a polyester, which may in turn be used to form such articles of manufacturing as containers, optical disks, fibers, sheets and films.

    摘要翻译: 公开了形成纯化的脱水葡萄糖醇的方法,由此得到的纯化的脱水葡萄糖醇的纯度至少为99.8%,基本上是无色的。 通过蒸馏纯化脱水葡萄糖醇,从甲醇,乙醇或乙二醇中重结晶,熔融重结晶或其组合。 优选地,通过蒸馏进行纯化,然后从甲醇,乙醇或乙二醇中重结晶。 公开了用于测定脱水葡萄糖醇纯度的试验,其中在至少260℃的温度下退火至少4小时后的脱水葡萄糖醇的颜色被检查。 或者,可以通过检查各种波长的纯化的脱水葡萄糖醇的紫外线(UV)透射率来确定纯度。 纯化的脱水葡萄糖醇可以掺入聚合物如聚酯中,聚酯可以依次用于形成容器,光盘,纤维,片和薄膜等制造品。

    Poled polymeric nonlinear optical materials
    7.
    发明授权
    Poled polymeric nonlinear optical materials 失效
    极化聚合物非线性光学材料

    公开(公告)号:US5371173A

    公开(公告)日:1994-12-06

    申请号:US981342

    申请日:1992-11-25

    IPC分类号: C08G73/12 G02F1/361 C08G73/10

    CPC分类号: G02F1/3617 C08G73/124

    摘要: The synthesis of a nonlinear chromophoric co-monomer 3,5-diamino-4'-nitrodiphenylamine and use as a reactive component in combination with a bismaleimide monomer in a NLO-active polyimide matrix is disclosed. After concurrent corona or contact poling and thermal polymerization, thin films of these chromophoric polyimides exhibit high second harmonic generation efficiencies and high DSC-determined glass transition temperatures. These poled polyimides also exhibit excellent SHG temporal stability, retaining 85-90% of the initial second harmonic efficiency after more than one month in air at 85.degree. C.

    摘要翻译: 公开了非线性发色共聚单体3,5-二氨基-4'-硝基二苯胺的合成,并将其用作与Nlo-活性聚酰亚胺基体中的双马来酰亚胺单体组合的反应性组分。 在共同电晕或接触极化和热聚合之后,这些发色聚酰亚胺的薄膜表现出高的二次谐波产生效率和高DSC测定的玻璃化转变温度。 这些极化的聚酰亚胺也具有优异的SHG时效性,在85℃的空气中保持一个月以上的初始二次谐波效率的85-90%。

    Polypropylene films with enhanced moisture barrier properties, process for making and composition thereof
    8.
    发明申请
    Polypropylene films with enhanced moisture barrier properties, process for making and composition thereof 审中-公开
    具有增强的防潮性能的聚丙烯膜,其制造方法和组合物

    公开(公告)号:US20080286547A1

    公开(公告)日:2008-11-20

    申请号:US11804630

    申请日:2007-05-18

    CPC分类号: B32B27/32 C08J5/18

    摘要: Multi-layer films particularly suited for packaging applications, including a core layer, the core layer having at least one nucleating agent and at least one water vapor transmission inhibitor are provided. Optionally, the multi-layer film may have at least one skin layer and at least one tie layer located intermediate the core layer and the at least one skin layer. Embodiments may have the advantage of superior barrier properties and very low water vapor transmission rates.

    摘要翻译: 提供了特别适用于封装应用的多层膜,包括芯层,具有至少一种成核剂的芯层和至少一种水蒸气透过抑制剂。 任选地,多层膜可以具有至少一个表皮层和位于芯层和至少一个表层之间的至少一个连接层。 实施例可具有优异的阻隔性能和非常低的水蒸气透过率的优点。

    Method of priming polyolefin articles for coating
    9.
    发明授权
    Method of priming polyolefin articles for coating 失效
    用于涂布聚烯烃制品的方法

    公开(公告)号:US06368677B2

    公开(公告)日:2002-04-09

    申请号:US09855267

    申请日:2001-05-15

    IPC分类号: B05D138

    摘要: A method for providing a waterborne, inorganic barrier coating to a polyolefin substrate is described. The method involves applying a primer composition containing a vinyl polymer, wherein at least 75% of the polymer repeat units contain side groups having hydroxyl moieties, to the substrate. This primer coating facilitates the application and binding of the subsequently applied barrier coating composition to the substrate.

    摘要翻译: 描述了一种向聚烯烃基材提供水性无机阻隔涂层的方法。 该方法包括将含有乙烯基聚合物的底漆组合物,其中至少75%的聚合物重复单元含有具有羟基部分的侧基。 该底涂层有助于随后施加的阻挡涂层组合物与基底的应用和结合。