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    • 27. 发明申请
    • PROCESS FOR PREPARING 1,6-HEXANEDIOL
    • 制备1,6-HEXANEDIOL的方法
    • US20120071624A1
    • 2012-03-22
    • US13303857
    • 2011-11-23
    • Rolf PINKOS
    • Rolf PINKOS
    • C08G18/28C08G63/183C08G63/52C07C31/20C08G63/16
    • C07C29/80C07C31/125
    • The invention provides 1,6-hexanediol having a proportion by weight of nitrogen of less than 5 ppm, and polymers obtained by reacting the 1,6-hexanediol with at least one reactive compound. The 1,6-hexanediol is obtained by distilling a mixture including 1,6-hexanediol and more than 500 ppm of at least one carboxylic acid, ester, or both, having a boiling point higher than that of the 1,6-hexanediol and being in contact with the 1,6-hexanediol at a temperature range greater than or equal to 100° C. for at least 5 minutes before, during, or before and during, the distillation, followed by collection of the 1,6-hexanediol. In certain embodiments of this invention, the 1,6-hexanediol has a proportion by weight of nitrogen of less than 3 ppm and less than 2 ppm.
    • 本发明提供一种重量比小于5ppm的1,6-己二醇,以及通过使1,6-己二醇与至少一种反应性化合物反应而获得的聚合物。 通过将沸点高于1,6-己二醇的沸点的1,6-己二醇和大于500ppm的至少一种羧酸酯或两者的混合物蒸馏得到1,6-己二醇, 在蒸馏之前,期间,之前和期间,在大于或等于100℃的温度范围内与1,6-己二醇接触至少5分钟,然后收集1,6-己二醇 。 在本发明的某些实施方案中,1,6-己二醇的氮重量比小于3ppm且小于2ppm。
    • 30. 发明授权
    • Dendrimer compositions with high branching multiplicity
    • 具有高支化多重性的树枝状大分子组合物
    • US07619054B2
    • 2009-11-17
    • US11365903
    • 2006-03-01
    • Dillip K MohantyZhong-Biao Zhang
    • Dillip K MohantyZhong-Biao Zhang
    • C08G63/52
    • C08G83/002C08G83/005Y10S977/754
    • Dendrimeric compounds and polymers are also provided wherein the dendrimer core is derived from the Michael reaction products. The branching pattern of the core and the multiplicity of the Michael addition lead to flexibility in designing and synthesizing dendrimeric materials.The Michael addition products are from a reaction between primary amines and activated α,β-unsaturated compounds exemplified by diethyl methylenemalonate (DEMM). In various embodiments, the reaction proceeds with high yields in the absence of strong base or Lewis acid catalyst under mild reaction conditions. Depending on the state of steric hindrance in the amine, the reaction products are a double Michael addition product or a so-called vicarious Michael addition reaction product.
    • 还提供了树枝状聚合物核心衍生自迈克尔反应产物的树枝状聚合物和聚合物。 核心的分支模式和迈克尔加成的多重性导致设计和合成树枝状聚合物材料的灵活性。 迈克尔加成产物是由伯胺和活化的α,β-不饱和化合物与亚甲基二乙酸二乙酯(DEMM)之间的反应产生。 在各种实施方案中,在温和反应条件下,在没有强碱或路易斯酸催化剂的情况下,反应以高产率进行。 取决于胺中空间位阻的状态,反应产物是双重迈克尔加成产物或所谓的替代迈克尔加成反应产物。