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    • 10. 发明授权
    • Melt stabilization of poly arylene sulfide ketone
    • 聚亚芳基硫醚酮的熔融稳定化
    • US4892929A
    • 1990-01-09
    • US272620
    • 1988-11-16
    • Jon F. GeibelRoger G. GaughanMichael D. Cliffton
    • Jon F. GeibelRoger G. GaughanMichael D. Cliffton
    • C08G75/02
    • C08G75/0295C08G75/024
    • Melt stable polymeric resins are provided by process which comprises heating a first particulate resin selected from the group consisting of poly(arylene sulfide ketone) and poly(arylene sulfide diketone), while in the presence of a gaseous oxidizing atmosphere, to a temperature at least about 150.degree. C. (302.degree. F.) but below the melting point of the first particulate resins, for time sufficient to produce a second particulate resin. The thermal stability of the second particulate resin is superior to that of its respective first particulate resin is superior to that of its respective first particulate resin. Moreover, the molecular weight of the second particulate resin is greater than that of its respective first particulate resin.
    • 熔融稳定的聚合物树脂通过以下方法提供,该方法包括在气态氧化气氛存在下将选自聚(亚芳基硫醚酮)和聚(亚芳基硫醚二酮)的第一颗粒树脂加热到至少 约130℃(302°F)但低于第一颗粒树脂的熔点,足以产生第二颗粒树脂。 第二颗粒树脂的热稳定性优于其第一颗粒树脂的热稳定性优于其相应的第一颗粒树脂的热稳定性。 此外,第二颗粒树脂的分子量大于其第一颗粒树脂的分子量。