Process for making linear dicarboxylic acids from renewable resources
    38.
    发明授权
    Process for making linear dicarboxylic acids from renewable resources 失效
    从可再生资源制造线性二羧酸的方法

    公开(公告)号:US08753853B2

    公开(公告)日:2014-06-17

    申请号:US13131138

    申请日:2009-12-11

    IPC分类号: C12P7/44

    摘要: This invention provides a process of making a linear dicarboxylic acid of C10, C12, C14, C16 or C18 chain length, the process comprising providing a feed which is a renewable resource, contacting the feed with a catalyst in the presence of hydrogen and at a temperature of about 250° C. to about 425° C. and at a pressure of about 500 psig to about 2500 psig (3450 kPa to about 17,250 kPa) to produce a hydrocarbon product having at least a 5:1 ratio of even-numbered alkanes to odd-numbered alkanes and comprising a linear alkane of Cn chain length; and fermenting at least a portion of the linear alkane of Cn chain length to a linear dicarboxylic acid of Cn chain length, wherein n=10, 12, 14, 16 or 18. The catalyst comprises an oxide, molybdenum, and one or more active metals selected from the group consisting of nickel, cobalt, and mixtures thereof and the catalyst is in sulfided form.

    摘要翻译: 本发明提供了制备C 10,C 12,C 14,C 16或C 18链长度的线性二羧酸的方法,该方法包括提供作为可再生资源的进料,在氢气存在下使进料与催化剂接触 温度为约250℃至约425℃,压力为约500psig至约2500psig(3450kPa至约17,250kPa),以产生具有至少5:1比例偶数编号的烃产物 烷烃至奇数烷烃并且包含Cn链长度的直链烷烃; 并将Cn链长度的直链烷烃的至少一部分发酵成C n链长度的线性二羧酸,其中n = 10,12,14,16或18.所述催化剂包含氧化物,钼和一种或多种活性物质 选自镍,钴及其混合物的金属,催化剂为硫化形式。

    Integrated process for the preparation of polybenzimidazole precursors
    39.
    发明授权
    Integrated process for the preparation of polybenzimidazole precursors 失效
    用于制备聚苯并咪唑前体的综合方法

    公开(公告)号:US08404898B2

    公开(公告)日:2013-03-26

    申请号:US12634734

    申请日:2009-12-10

    IPC分类号: C07C209/38

    摘要: An integrated process is provided for preparing 2,3,5,6-tetraminotoluene and salts thereof starting with nitration of 2,6-dihalotoluene. The process design eliminates costly intermediate drying and recrystallization steps. Handling of solid materials with possible skin sensitizing properties and toxicity is avoided, thereby eliminating human and environmental exposure.

    摘要翻译: 提供了从2,6-二卤代甲苯的硝化开始制备2,3,5,6-四甲基甲苯及其盐的综合方法。 该工艺设计消除了昂贵的中间干燥和重结晶步骤。 避免了具有可能的皮肤敏感性和毒性的固体材料的处理,从而消除了人体和环境的暴露。

    COPOLYAMIDE COMPOSITIONS DERIVED FROM TRIACYLGLYCERIDES
    40.
    发明申请
    COPOLYAMIDE COMPOSITIONS DERIVED FROM TRIACYLGLYCERIDES 审中-公开
    来自三氯化碳的共聚酰胺组合物

    公开(公告)号:US20130048136A1

    公开(公告)日:2013-02-28

    申请号:US13596103

    申请日:2012-08-28

    摘要: Disclosed is a copolyamide including at least two repeat units selected from the group consisting of structures (I) to (IV), —C(O)(CH2)10C(O)NH(CH2)nNH—  (I); —C(O)(CH2)12C(O)NH(CH2)nNH—  (II); —C(O)(CH2)14C(O)NH(CH2)nNH—  (II); and —C(O)(CH2)16C(O)NH(CH2)nNH—  (IV); and n is an integer selected from 4, 6, 10 or 12; wherein at least one repeat unit is selected from structures (I) and (II); and any one the repeat units may be present up to about 92 mole percent. Also disclosed is a process for providing the copolyamide; and thermoplastic compositions and tubing including the copolyamides.

    摘要翻译: 公开了包含选自由结构(I)至(IV),-C(O)(CH 2)10 C(O)NH(CH 2)n NH-(I))组成的组中的至少两个重复单元的共聚酰胺; -C(O)(CH 2)12 C(O)NH(CH 2)n NH-(II); -C(O)(CH 2)14 C(O)NH(CH 2)n NH-(II); 和-C(O)(CH 2)16 C(O)NH(CH 2)n NH-(IV); n为选自4,6,10或12的整数; 其中至少一个重复单元选自结构(I)和(II); 并且任何一个重复单元可以存在达约92摩尔%。 还公开了提供共聚酰胺的方法; 和包括共聚酰胺的热塑性组合物和管。