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    • 21. 发明授权
    • Morpholine-substituted poly(arylene ether) and method for the preparation thereof
    • 吗啉取代的聚(亚芳基醚)及其制备方法
    • US08124717B2
    • 2012-02-28
    • US13083696
    • 2011-04-11
    • Alvaro CarrilloStephen M. FarnellHua Guo
    • Alvaro CarrilloStephen M. FarnellHua Guo
    • C08G65/38C08G2/00
    • C08G65/46
    • A poly(2,6-dimethyl-1,4-phenylene ether) prepared using a morpholine-containing polymerization catalyst has a monomodal molecular weight distribution with a reduced content of very high molecular weight species. It also exhibits increased morpholine incorporation in the high molecular weight fraction. Compared to commercially available poly(2,6-dimethyl-1,4-phenylene ether) prepared using a di-n-butylamine-containing polymerization catalyst, the poly(2,6-dimethyl-1,4-phenylene ether) of the invention exhibits reduced odor. Compared to other poly(2,6-dimethyl-1,4-phenylene ether) prepared using a morpholine-containing polymerization catalyst, the poly(2,6-dimethyl-1,4-phenylene ether) of the invention exhibits improved molecular weight build during compounding and improved compatibilization with polyamides.
    • 使用含吗啉的聚合催化剂制备的聚(2,6-二甲基-1,4-亚苯基醚)具有单分子分子量分布,具有非常高的分子量物质含量降低。 它还表现出高分子量级分中增加的吗啉掺入。 与使用含有二正丁胺的聚合催化剂制备的市售聚(2,6-二甲基-1,4-亚苯基醚)相比,聚(2,6-二甲基-1,4-亚苯基醚) 发明显示减少的气味。 与使用含吗啉的聚合催化剂制备的其它聚(2,6-二甲基-1,4-亚苯基醚)相比,本发明的聚(2,6-二甲基-1,4-亚苯基醚)表现出改善的分子量 在复合期间建立并改善与聚酰胺的相容性。
    • 27. 发明授权
    • Poly(phenylene ether) process
    • 聚(苯醚)工艺
    • US08466253B1
    • 2013-06-18
    • US13538020
    • 2012-06-29
    • Prashant KumarAlvaro CarrilloScott Michael FisherNitin Vilas Tople
    • Prashant KumarAlvaro CarrilloScott Michael FisherNitin Vilas Tople
    • C08G64/00C08G63/02
    • C08G65/46C08G65/485C08L71/126
    • A method of purifying a capped poly(phenylene ether) includes mixing a poly(phenylene ether) capping reaction mixture comprising a capped poly(phenylene ether), a capping agent, a capping byproduct, a capping catalyst, and a poly(phenylene ether) solvent, and first washing solvents comprising a C1-C4 alkanol and water to form a first liquid phase comprising the capped poly(phenylene ether) and poly(phenylene ether) solvent, and a second liquid phase comprising C1-C4 alkanol and water; and separating the first liquid phase from the second liquid phase. Capped poly(phenylene ether) having reduced levels of residual capping agent, capping byproduct, and capping catalyst is produced from poly(phenylene ether) capping reaction mixtures by this method.
    • 一种纯化封端聚(亚苯基醚)的方法包括混合包含封端的聚(苯醚),封端剂,封端副产物,封端催化剂和聚苯醚的聚(苯醚)封端反应混合物, 溶剂和包含C1-C4链烷醇和水的第一洗涤溶剂以形成包含封端的聚(苯醚)和聚(苯醚)溶剂的第一液相,以及包含C 1 -C 4烷醇和水的第二液相; 以及将第一液相与第二液相分离。 通过该方法由聚(苯醚)封端反应混合物产生具有降低的残余封端剂,封端副产物和封端催化剂水平的封端的聚苯醚。