利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

8 条记录 (耗时 0.02 秒)

    Polyesters including isosorbide as a comonomer and methods for making same
    5.
    发明授权
    Polyesters including isosorbide as a comonomer and methods for making same 失效
    聚酯包括异山梨醇作为共聚单体及其制备方法

    公开(公告)号：US5959066A

    公开(公告)日：1999-09-28

    申请号：US64844

    申请日：1998-04-23

    申请人： Larry F. Charbonneau ,  Robert E. Johnson ,  Helmut B. Witteler ,  Garo Khanarian

    发明人： Larry F. Charbonneau ,  Robert E. Johnson ,  Helmut B. Witteler ,  Garo Khanarian

    IPC分类号： C08G63/199 ,  C08G63/672 ,  C08G63/78 ,  C08G63/80 ,  C08G63/02

    CPC分类号： C08G63/672 ,  C08G63/80

    摘要： An isotropic polyester polymer and method for making the polyester is prepared by (1) combining in a reactor a monomer containing a terephthaloyl moiety; optionally, one or more other monomers containing an aromatic diacid moiety; a monomer comprising an ethylene glycol moiety; a monomer containing an isosorbide moiety; optionally, one or more other monomers containing a diol moiety; and optionally, a monomer containing a diethylene glycol moiety; with a condensation catalyst suitable for condensing aromatic diacids and glycols; and (2) heating the monomers and catalyst to polymerize the monomers to yield a polyester having an inherent viscosity of at least about 0.35 dL/g.

    摘要翻译： 各向同性聚酯聚合物和制造聚酯的方法通过以下步骤制备：（1）在反应器中将含有对苯二酰基部分的单体合并; 任选地，一种或多种含有芳族二酸部分的其它单体; 包含乙二醇部分的单体; 含有异山梨醇部分的单体; 任选地，一种或多种含有二醇部分的其它单体; 和任选地，含有二甘醇部分的单体; 具有适用于缩合芳族二酸和二醇的缩合催化剂; 和（2）加热单体和催化剂以聚合单体以产生具有至少约0.35dL / g的特性粘度的聚酯。

    Process and products of purification of anhydrosugar alcohols
    8.
    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

    申请人： Michael A. Hubbard ,  Michael Wohlers ,  Helmut B. Witteler ,  Edward G. Zey ,  George Kvakovszky ,  Thomas H. Shockley ,  Larry F. Charbonneau ,  Norbert Kohle ,  Jochen Rieth

    发明人： Michael A. Hubbard ,  Michael Wohlers ,  Helmut B. Witteler ,  Edward G. Zey ,  George Kvakovszky ,  Thomas H. Shockley ,  Larry F. Charbonneau ,  Norbert Kohle ,  Jochen Rieth

    IPC分类号： D02G300

    CPC分类号： C08G63/672 ,  Y10T428/29 ,  Y10T428/2913

    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。