Washing arylene sulfide polymers with water plus a reducing agent
    2.
    发明授权
    Washing arylene sulfide polymers with water plus a reducing agent 失效
    用水加还原剂洗涤亚芳基硫醚聚合物

    公开(公告)号:US4882418A

    公开(公告)日:1989-11-21

    申请号:US284169

    申请日:1988-12-13

    IPC分类号: C08G75/02

    摘要: A process is provided for removing solid and liquid impurities from a particulate arylene sulfide polymer recovered from a polymerization reaction mixture slurry, without significantly discoloring the resulting washed polymer. The process of this invention comprises the steps of: (a) preparing a first slurry, wherein the solid component thereof comprises a particulate arylene sulfide polymer recovered from a reaction mixture slurry, and wherein the liquid component thereof comprises a mixture of water and a reducing agent; (b) heating the first slurry to a temperature of at least about 185.degree. C. (365.degree. F.) but below the melting point of the particulate polymer, to wash the polymer contained therein; (c) cooling the first slurry to a temperature below about 100.degree. C. (212.degree. F.), to form a second slurry, wherein the solid component thereof comprises a washed particulate arylene sulfide polymer; and (d) recovering the washed particulate arylene sulfide polymer from the second slurry.

    摘要翻译: 提供一种从聚合反应混合物浆料中回收的颗粒状亚芳基硫醚聚合物中除去固体和液体杂质的方法,而不会使得到的洗涤聚合物显着变色。 本发明的方法包括以下步骤:(a)制备第一浆料,其中其固体组分包含从反应混合物浆料中回收的颗粒状亚芳基硫醚聚合物,并且其中其液体组分包括水和还原剂的混合物 代理人 (b)将第一浆料加热到至少约185℃(365°F)但低于颗粒状聚合物熔点的温度,以洗涤其中所含的聚合物; (c)将第一浆料冷却至低于约100℃(212°F)的温度,以形成第二浆料,其中其固体组分包含经洗涤的颗粒亚芳基硫醚聚合物; 和(d)从第二浆料中回收洗涤的颗粒状亚芳基硫醚聚合物。

    Acid wash of polyarylene sulfides
    3.
    发明授权
    Acid wash of polyarylene sulfides 失效
    聚亚硫酰氯的酸洗

    公开(公告)号:US4801664A

    公开(公告)日:1989-01-31

    申请号:US149760

    申请日:1988-01-29

    摘要: In one embodiment, a process is provided for treating virgin poly(arylene sulfide) resins, wherein a heated polymer slurry, comprising a virgin poly(arylene sulfide) resin and water is contacted by an acidic treating solution comprising at least an acidic component, wherein the amount of the acidic component in the acidic treating solution is less than the amount necessary to result in at least a partial curing of the virgin poly(arylene sulfide) resin. In a second embodiment, the process is provided for treating a virgin poly(arylene sulfide) resin, wherein the virgin poly(arylene sulfide) resin is slurried with an aqueous acidic treating solution comprising an acidic component and an aqueous component and the concentration of the acidic component in the aqueous acidic treating solution is less than the amount necessary to result in at least a partial curing of the virgin poly(arylene sulfide) resin. The polymer slurry is then heated to an elevated temperature, below the melting point of the virgin resin, while in the substantial absence of a gaseous oxidizing atmosphere.

    Granular poly(arylene sulfide) recovery using evaporation
    5.
    发明授权
    Granular poly(arylene sulfide) recovery using evaporation 失效
    颗粒状聚(亚芳基硫)采用蒸发回收

    公开(公告)号:US4524200A

    公开(公告)日:1985-06-18

    申请号:US611573

    申请日:1984-05-18

    IPC分类号: C08G75/02 C08J3/12 C08G75/14

    摘要: Granular poly(arylene sulfide) is recovered from a slurry comprising granular poly(arylene sulfide), polar organic solvent, alkali metal halide, poly(arylene sulfide) oligomers, untreated reactants in the water by heating the slurry under conditions to evaporate polar organic solvent, water and volatile impurities at a temperature below the normal boiling point of the polar organic solvent to produce a dry mixture containing poly(arylene sulfide), poly(arylene sulfide) oligomers and alkali metal halide which is then reslurried with water to produce a reslurried mixture containing aqueous alkali metal halide solution and dispersed poly(arylene sulfide) oligomers with the reslurried mixture being filtered through a coarse screen to recover granular poly(arylene sulfide) thereon and pass a filtrate containing poly(arylene sulfide) oligomers and aqueous alkali metal halide solution therethrough. The filtrate can be further treated by filtering through a filter aid coated vacuum filter to recover poly(arylene sulfide) oligomers thereon and pass an aqueous alkali metal halide solution therethrough as filtrate.

    摘要翻译: 从含有聚(亚芳基硫醚),极性有机溶剂,碱金属卤化物,聚(亚芳基硫醚)低聚物的浆料中回收颗粒状聚(亚芳基硫醚),在水中通过在蒸发极性有机溶剂的条件下加热浆料 ,水和挥发性杂质在低于极性有机溶剂的正常沸点的温度下产生含有聚(亚芳基硫醚),聚(亚芳基硫醚)低聚物和碱金属卤化物的干燥混合物,然后将其与水一起重新制备, 含有碱金属卤化物水溶液和分散的聚(亚芳基硫醚)低聚物的混合物,其中重新制备的混合物通过粗筛过滤,以在其上回收粒状聚(亚芳基硫醚),并通过含有聚(亚芳基硫醚)低聚物和碱金属卤化物水溶液的滤液 溶液通过。 可以通过过滤助滤剂真空过滤器进一步处理滤液,以在其上回收聚(亚芳基硫醚)低聚物,并通过作为滤液的碱金属卤化物水溶液。

    Recovering poly(arylene sulfide) oligomers from a poly(arylene sulfide)
reaction mixture
    6.
    发明授权
    Recovering poly(arylene sulfide) oligomers from a poly(arylene sulfide) reaction mixture 失效
    从聚(亚芳基硫醚)反应混合物中回收聚(亚芳基硫醚)低聚物

    公开(公告)号:US4730034A

    公开(公告)日:1988-03-08

    申请号:US6410

    申请日:1987-01-23

    CPC分类号: C08G75/0281 C08G75/0259

    摘要: Poly(arylene sulfide) oligomers are recovered in a process comprising steps of:(a) dehydration of an aqueous admixture of alkali metal hydroxide such as sodium hydroxide, and alkali metal bisulfide such as sodium bisulfide, in a polar organic solvent such as N-methyl-2-pyrrolidone (NMP), wherein the molar ratio of alkali metal hydroxide to alkali metal bisulfide is about 0.90:1 to about 1.05:1 prior to dehydration and 0.99:1 to about 1.05:1 after dehydration;(b) reaction of at least one polyhalo-substituted aromatic compound such as p-dichlorobenzene with the mixture from step (a) under polymerization conditions to produce a reaction mixture;(c) addition of a phase separation agent such as water, to the reaction mixture to produce a phase-separated poly(arylene sulfide) mixture;(d) cooling the mixture from step (c) to produce a slurry of particulate poly(arylene sulfide) and poly(arylene sulfide) oligomers in a liquid;(e) separating particulate poly(arylene sulfide) from the slurry of step (d) leaving a dispersion of poly(arylene sulfide) oligomers in a liquid; and(f) filtering the dispersion of step (e) to recover the poly(arylene sulfide) oligomers therefrom.

    Higher molecular weight arylene sulfide resin and process for its
preparation
    7.
    发明授权
    Higher molecular weight arylene sulfide resin and process for its preparation 失效
    较高分子量的亚芳基硫醚树脂及其制备方法

    公开(公告)号:US5110901A

    公开(公告)日:1992-05-05

    申请号:US580720

    申请日:1990-09-11

    IPC分类号: C08G75/02

    CPC分类号: C08G75/0259

    摘要: In a first embodiment, arylene sulfide resins are provided by contacting, in a polymerization mixture, during a polymerization process, reactants comprising: an alkali metal sulfide, an organic amide, an alkali metal carboxylate, water and a monomer source which comprises at least one dihaloaromatic compound. The amount of alkali metal carboxylate present during the polymerization process ranges from about 0.01 to about 0.03 mole per each mole of sulfur present in the resulting arylene sulfide resin. The total amount of water present during the polymerization process ranges from about 1.02 to about 2.1 moles per each mole of sulfur present in the resulting arylene sulfide resin.In a second embodiment, arylene sulfide resins are provided by contacting, in a polymerization mixture, during a polymerization process, reactants comprising: an alkali metal sulfide, an organic amide, an alkali metal carboxylate, water and a monomer source which comprises a mixture of at least one dihaloaromatic compound and at least one polyhaloaromatic compound having more than two halogen substituents per molecule. The ranges of the amount of alkali metal carboxylate present during the polymerization process and the total amount of water present during the polymerization process are identical to those amounts disclosed in the first embodiment. The amount of polyhaloaromatic compound initially present ranges from about 0.0001 to about 0.01 mole per each mole of dihaloaromatic compound present prior to the initiation of the polymerization process.

    摘要翻译: 在第一个实施方案中,亚芳基硫醚树脂通过在聚合反应过程中使聚合反应中的反应物与碱金属硫化物,有机酰胺,碱金属羧酸盐,水和单体源接触来提供,所述反应物包括至少一种 二卤化合物。 在聚合过程中存在的碱金属羧酸盐的量为所得亚芳基硫醚树脂中存在的每摩尔硫的约0.01至约0.03摩尔。 在聚合过程中存在的水的总量范围为所得亚芳基硫醚树脂中存在的每摩尔硫的约1.02至约2.1摩尔。 在第二个实施方案中,亚芳基硫醚树脂是通过在聚合反应过程中使聚合反应中的反应物与碱金属硫化物,有机酰胺,碱金属羧酸盐,水和单体来源接触来提供的, 至少一种二卤代芳族化合物和每分子具有多于两个卤素取代基的至少一种多卤芳族化合物。 在聚合过程中存在的碱金属羧酸盐的量的范围和在聚合过程中存在的水的总量与第一实施方案中公开的量相同。 在开始聚合过程之前,存在的每摩尔二卤代芳族化合物最初存在的多卤代芳族化合物的量为约0.0001至约0.01摩尔。

    Recovery of poly(arylene sulfide ketone) and poly(arylene sulfide
diketone) resins
    8.
    发明授权
    Recovery of poly(arylene sulfide ketone) and poly(arylene sulfide diketone) resins 失效
    回收聚(亚芳基硫醚酮)和聚(亚芳基硫醚二酮)树脂

    公开(公告)号:US5091509A

    公开(公告)日:1992-02-25

    申请号:US459011

    申请日:1989-12-29

    IPC分类号: C08G75/02 C08G85/00

    CPC分类号: C08G75/0281 C08G85/00

    摘要: A poly(arylene sulfide ketone) or poly(arylene sulfide diketone) resin having improved handling characteristics is prepared by a process comprising preparing in a first enclosed vessel a slurry comprising a solid poly(arylene sulfide ketone) or poly(arylene sulfide diketone) resin and a liquid polar organic compound, and optionally water; then substantially liquifying the resin to form a mixture comprising substantially liquified resin and polar organic compound; then flashing the mixture into a second vessel having a pressure lower than the first vessel, thereby removing a portion of the polar organic compound and solidifying the resin.When the slurry further comprises water, the invention method optionally includes a venting step prior to the substantial liquification of the resin and/or a concentration step after the substantial liquification of the resin.

    摘要翻译: 通过包括在第一封闭容器中制备包含固体聚(亚芳基硫醚酮)或聚(亚芳基硫醚二酮)树脂的浆料的方法制备具有改进的处理特性的聚(亚芳基硫醚酮)或聚(亚芳基硫醚二酮)树脂 和液体极性有机化合物,和任选的水; 然后基本上液化树脂以形成基本上液化的树脂和极性有机化合物的混合物; 然后将混合物闪蒸成具有低于第一容器的压力的第二容器,从而除去一部分极性有机化合物并固化树脂。 当浆料还包含水时,本发明方法任选地包括在树脂基本上液化之前的排气步骤和/或在树脂基本上液化之后的浓缩步骤。

    Aromatic sulfide/sulfone polymer production
    10.
    发明授权
    Aromatic sulfide/sulfone polymer production 失效
    芳香族硫化物/砜聚合物生产

    公开(公告)号:US5134224A

    公开(公告)日:1992-07-28

    申请号:US654983

    申请日:1991-02-14

    IPC分类号: C08G75/02 C08G75/20

    CPC分类号: C08G75/02 C08G75/20

    摘要: According to this invention, improved results in terms of molecular weight and percent yield of aromatic sulfide/sulfone polymers are achieved by the employment of a low level modifying agent within a specific range in the polymerization reaction mixture. The modifying agent employed is a salt of an amino carboxylic acid. The salt can be employed as an already existing salt of an amino carboxylic acid or can be formed in situ by employing either an amino carboxylic acid and a base; or a lactam and a base.

    摘要翻译: 根据本发明,通过在聚合反应混合物中使用特定范围内的低水平改性剂,可以获得芳族硫化物/砜聚合物的分子量和产率百分数的改进结果。 所用的改性剂是氨基羧酸的盐。 盐可以用作氨基羧酸的已经存在的盐,或者可以通过使用氨基羧酸和碱来原位形成; 或内酰胺和碱。