Enzymatic resolution of propylene glycol alkyl (or aryl) ethers and ether acetates
    1.
    发明授权
    Enzymatic resolution of propylene glycol alkyl (or aryl) ethers and ether acetates 失效
    丙二醇烷基(或芳基)醚和醚乙酸酯的酶解

    公开(公告)号:US07264960B2

    公开(公告)日:2007-09-04

    申请号:US10502692

    申请日:2003-03-21

    IPC分类号: C12P41/00

    CPC分类号: C12P7/18 C12P41/004

    摘要: Glycol ether acetates, and in particular propylene glycol alkyl (or aryl) ether acetates, can be resolved enzymatically by enantioselective hydrolysis with a hydrolase at high concentrations of substrates; in some embodiments, the hydrolase is a lipase. Glycol ethers, and in particular propylene glycol alkyl (or aryl) ethers, can be resolved enzymatically by enantioselective transesterification with a hydrolase, in the presence of an acyl donor, at high concentrations of substrates; in some embodiments, the hydrolase is a lipase.

    摘要翻译: 乙二醇醚乙酸酯,特别是丙二醇烷基(或芳基)醚乙酸酯可以通过在高浓度底物下用水解酶进行对映选择性水解来酶解; 在一些实施方案中,水解酶是脂肪酶。 乙二醇醚,特别是丙二醇烷基(或芳基)醚可以通过在酰基供体存在下,在高浓度底物下用水解酶进行对映选择性酯交换酶解解; 在一些实施方案中,水解酶是脂肪酶。

    CURABLE SILYL POLYMERS
    2.
    发明申请
    CURABLE SILYL POLYMERS 审中-公开
    可固化的SILYL聚合物

    公开(公告)号:US20130096251A1

    公开(公告)日:2013-04-18

    申请号:US13700961

    申请日:2011-06-21

    IPC分类号: C08G18/83 C08G18/12

    摘要: Embodiments of the invention relate to crosslinkable silyl group-containing polymers and methods of producing them. In one embodiment a method of producing a silyl polymer is provided. The method includes reacting at least one natural oil based polyol with at least one isocyanate to form at least one prepolymer having at least one NCO group. The at least one natural oil based polyol includes the reaction product of hydroxymethylated fatty acids or esters thereof and at least one polyol initiator. The prepolymer having at least one NCO group is reacted with at least one amino functional alkoxy silane to form the silyl polymer, such that the silyl polymer includes at least one crosslinkable silyl group, at least one urethane group, and at least one urea group in each molecule.

    摘要翻译: 本发明的实施方案涉及可交联的含甲硅烷基的聚合物及其制备方法。 在一个实施方案中,提供了产生甲硅烷基聚合物的方法。 所述方法包括使至少一种天然油基多元醇与至少一种异氰酸酯反应以形成至少一种具有至少一个NCO基团的预聚物。 所述至少一种天然油基多元醇包括羟甲基化脂肪酸或其酯与至少一种多元醇引发剂的反应产物。 具有至少一个NCO基团的预聚物与至少一个氨基官能的烷氧基硅烷反应以形成甲硅烷基聚合物,使得甲硅烷基聚合物包括至少一个可交联甲硅烷基,至少一个氨基甲酸酯基和至少一个脲基 每个分子。

    Process for recovering organic compounds from aqueous streams containing same
    3.
    发明授权
    Process for recovering organic compounds from aqueous streams containing same 有权
    从含有它们的水流中回收有机化合物的方法

    公开(公告)号:US07713418B2

    公开(公告)日:2010-05-11

    申请号:US10590685

    申请日:2005-02-18

    IPC分类号: B01D15/00 C02F1/44 B01D11/04

    摘要: A method for a liquid-liquid extraction of hydrophilic organic compounds from aqueous solutions thereof is described. The method generally includes intermixing a sufficient quantity of a specified glycol ether with the aqueous liquor at a first temperature to form a suspension comprising an aqueous raffinate phase and a glycol ether extract phase; separating the glycol ether extract phase from the aqueous raffinate phase; heating the glycol ether extract phase to a second, higher temperature to form a suspension comprising an aqueous extract phase containing a portion of the hydrophilic organic compound and a glycol ether raffinate phase; and separating this glycol ether raffinate phase from the aqueous extract phase. The selected glycol ether has an inverse solubility in water and the partition ratio, value K, for the hydrophilic organic compound is greater than 0.1. This method is useful for recovering valuable hydrophilic organic acids produced via fermentation or produced or used in various manufacturing processes.

    摘要翻译: 描述了从其水溶液中液 - 液萃取亲水性有机化合物的方法。 该方法通常包括在第一温度下将足够量的特定二醇醚与含水液体混合以形成包含残液相和二醇醚萃取相的悬浮液; 从萃余水相中分离出乙二醇醚萃取相; 将乙二醇醚提取相加热至第二较高温度以形成包含含有一部分亲水性有机化合物和二醇醚萃余相的含水萃取相的悬浮液; 并从水相萃取相中分离出该二醇醚萃余相。 所选择的二醇醚在水中具有相反的溶解度,并且亲水性有机化合物的分配比值K大于0.1。 该方法可用于回收通过发酵生产或生产或用于各种制造工艺中的有价值的亲水性有机酸。