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    • 3. 发明授权
    • Poly(phenylene ether) copolymer and method of making
    • 聚(苯醚)共聚物及其制备方法
    • US09018342B2
    • 2015-04-28
    • US13881480
    • 2012-07-27
    • Alvaro CarrilloScott Michael FisherHua GuoStephan MoysesEylem Tarkin-Tas
    • Alvaro CarrilloScott Michael FisherHua GuoStephan MoysesEylem Tarkin-Tas
    • C08G65/38C08G65/44C08L71/12C08G65/46C08G65/40
    • C08G65/44C08G65/38C08G65/46C08L71/12
    • A poly(phenylene ether) copolymer comprises about 5 to 40 mole percent repeat units derived from 2-phenylphenol and 60 to about 95 mole percent repeat units derived from 2,6-dimethylphenol, wherein the poly(phenylene ether) copolymer has a weight average molecular weight of at least 8,000 atomic mass units, as measured by gel permeation chromatography. A method of preparing the poly(phenylene ether) copolymer, comprises oxidatively copolymerizing a monomer mixture comprising about 5 to 40 mole percent 2-phenylphenol and about 60 to about 95 mole percent 2,6-dimethylphenol in the presence of a solvent, molecular oxygen, and a polymerization catalyst comprising a metal ion and at least one amine ligand to form a solution of the poly(phenylene ether) copolymer in the solvent, wherein a ratio of total moles of 2-phenylphenol and 2,6-dimethylphenol to moles of metal ion is about 10:1 to about 1200:1.
    • 聚(苯醚)共聚物包含约5-40摩尔%的衍生自2-苯基苯酚的重复单元和60-约95摩尔%的衍生自2,6-二甲基苯酚的重复单元,其中聚(苯醚)共聚物具有重均分子量 通过凝胶渗透色谱法测量的至少8,000个原子质量单位的分子量。 制备聚(苯醚)共聚物的方法包括在溶剂存在下氧化共聚包含约5至40摩尔%的2-苯基苯酚和约60至约95摩尔%的2,6-二甲基苯酚的单体混合物,分子氧 ,以及包含金属离子和至少一种胺配体的聚合催化剂,以在溶剂中形成聚(苯醚)共聚物的溶液,其中2-苯基苯酚和2,6-二甲基苯酚的总摩尔数与摩尔数 金属离子为约10:1至约1200:1。
    • 5. 发明授权
    • Poly(phenylene ether) process
    • 聚(苯醚)工艺
    • US08859646B2
    • 2014-10-14
    • US13417451
    • 2012-03-12
    • Gary Mell BatesNitin Vilas TopleScott Michael FisherHua Guo
    • Gary Mell BatesNitin Vilas TopleScott Michael FisherHua Guo
    • C08F6/08C08G65/38
    • C08G65/46
    • A method of purifying a poly(phenylene ether) is described. The method includes mixing a poly(phenylene ether) solution comprising a poly(phenylene ether) and a poly(phenylene ether) solvent with first washing solvents including a C1-C4 alkanol and water to form a first liquid phase including 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. The first and second liquid phases combined comprise about 60 to about 95 weight percent poly(phenylene ether) solvent, about 4 to about 32 weight percent C1-C4 alkanol, and about 1 to about 36 weight percent water. When optionally combined with evaporative removal of the poly(phenylene ether) solvent, the method reduces C1-C4 alkanol usage compared to the antisolvent precipitation method, and it produces poly(phenylene ether) having reduced catalyst metal ion residue and reduced color.
    • 描述了一种纯化聚(苯醚)的方法。 该方法包括将包含聚(苯醚)和聚(苯醚)溶剂的聚(苯醚)溶液与包含C1-C4链烷醇和水的第一洗涤溶剂混合以形成包含聚(苯醚) 和聚(苯醚)溶剂,以及包含C 1 -C 4链烷醇和水的第二液相,并且将第一液相与第二液相分离。 组合的第一和第二液相包含约60至约95重量%的聚(苯醚)溶剂,约4至约32重量%的C 1 -C 4链烷醇和约1至约36重量%的水。 当与蒸馏除去聚(苯醚)溶剂相结合时,与反溶剂沉淀法相比,该方法降低了C1-C4链烷醇的用量,并且产生具有降低的催化剂金属离子残余物和降低颜色的聚苯醚。