Preparation of poly (arylene sulfide) from dihalo aromatic hydroxyl
compound
    2.
    发明授权
    Preparation of poly (arylene sulfide) from dihalo aromatic hydroxyl compound 失效
    由二卤代芳族羟基化合物制备聚(亚芳基硫醚)

    公开(公告)号:US4868275A

    公开(公告)日:1989-09-19

    申请号:US234046

    申请日:1988-08-19

    IPC分类号: C08G75/02 C08G75/06

    CPC分类号: C08G75/0254 C08G75/0218

    摘要: In a process in which a poly (arylene sulfide) is synthesized by reacting a dihaloaromatic compound and an alkali metal sulfide in a polar organic solvent, the curing ability of the product polymer is significantly enhanced by introducing a small proportion of a hydroxyl group-containing polyhaloaromatic compound to the reaction mixture when a conversion of at least 60% has been achieved with respect to the dihaloaromatic compound present in the reaction mixture. The product polymer may be advantageously employed in various molding, forming or coating processes to provide the produced articles with increased strengths. The hydroxyl groups introduced into the polymer enable the polymer to be modified, if desired.

    Transparent and little colored polyarylenethioether primary melt
molding, preparation and utilization thereof
    4.
    发明授权
    Transparent and little colored polyarylenethioether primary melt molding, preparation and utilization thereof 失效
    透明和少许的聚芳醚乙醚一次熔融成型,其制备和利用

    公开(公告)号:US4801416A

    公开(公告)日:1989-01-31

    申请号:US924346

    申请日:1986-10-24

    摘要: A polyarylenethioether primary melt formed article having a Hunter whiteness higher than 30% and a parallel light transmittance Tp higher than 60%, as measured for a sheet with a thickness of 0.3 mm, at the process for obtaining the article which comprises producing a polyarylenethioether according to the polymerization reaction comprising a dehalogenation/sulfidization reaction between an alkali metal sulfide and a dihaloaromatic compound in a polar organic solvent by carrying out the reaction with the addition of an effective amount of a halo-substituted organic compound to obtain a stabilized polyarylenethioether, and then subjecting the polyarylenethioether to melt extrusion. The melt formed article thus produced can be subjected to further melt processing to produce a secondary melt formed article or structure of polyarylenethioether.

    摘要翻译: 在获得该制品的方法中,对厚度为0.3mm的片材测量的具有Hunter白度高于30%的Hunter白度高于60%的平均光透射率Tp的聚亚芳基硫醚一次熔融成型制品包括制备聚亚芳基醚, 涉及在极性有机溶剂中包含碱金属硫化物和二卤代芳族化合物在极性有机溶剂中的脱卤/硫化反应的聚合反应,通过加入有效量的卤代有机化合物进行反应,得到稳定的聚亚芳基醚醚,和 然后使聚芳醚乙醚熔融挤出。 如此制造的熔融成形体可以进行进一步的熔融加工以产生二亚乙烯硫醚的二次熔融成形制品或结构。

    Process for production of poly(arylene thioether) copolymer
    7.
    发明授权
    Process for production of poly(arylene thioether) copolymer 失效
    聚(亚芳基硫醚)共聚物的制备方法

    公开(公告)号:US5256763A

    公开(公告)日:1993-10-26

    申请号:US797869

    申请日:1991-11-26

    CPC分类号: C08G75/0218

    摘要: Disclosed herein is a process for the production of a granular poly(arylene thioether) copolymer by polymerizing an alkali metal sulfide with dihalo-aromatic compounds including at least one dihalo-aromatic carboxylic acid in a polar solvent containing water. Upon the polymerization, at least a part of the dihalo-aromatic carboxylic acid is converted into an alkaline earth metal salt in advance, the hydroxide and/or oxide of an alkaline earth metal is added together with the dihalo-aromatic carboxylic acid to the polymerization reaction system, or the hydroxide and/or oxide of an alkaline earth metal is added together with an alkaline earth metal salt of the dihalo-aromatic carboxylic acid and the dihalo-aromatic carboxylic acid to the polymerization reaction system.