Production of impact-resistant, thermoplastic resin compositions
    31.
    发明授权
    Production of impact-resistant, thermoplastic resin compositions 失效
    耐冲击热塑性树脂组合物的生产

    公开(公告)号:US4021509A

    公开(公告)日:1977-05-03

    申请号:US569071

    申请日:1975-04-17

    摘要: A thermoplastic resin composition of excellent transparency and high impact strength is produced by causing methyl methacrylate and styrene monomers to undergo post polymerization in the presence of a conjugated diolefin polymer rubber latex containing at least 50 percent by weight of a conjugated diolefin monomer as the constituent of the rubber such as butadiene, wherein a polyethylene oxide of an average molecular weight of at least 100,000 has been added to the rubber latex either prior to or at the time of the post polymerization to cause the rubber latex to partly coagulate, thereby to prepare a graft polymer. The graft copolymer can be blended with methyl methacrylate-styrene copolymers.

    摘要翻译: 通过在含有至少50重量%的共轭二烯烃单体的共轭二烯烃聚合物橡胶胶乳的存在下使甲基丙烯酸甲酯和苯乙烯单体进行后聚合来制备具有优异的透明性和高冲击强度的热塑性树脂组合物作为 在后聚合之前或之后,在橡胶胶乳中加入平均分子量为至少100,000的聚环氧乙烷的橡胶如丁二烯,导致橡胶胶乳部分凝结,从而制备 接枝聚合物。 接枝共聚物可与甲基丙烯酸甲酯 - 苯乙烯共聚物共混。

    Process for the preparation of cross-linked polyarylene sulfide
    32.
    发明授权
    Process for the preparation of cross-linked polyarylene sulfide 失效
    制备交联聚芳硫醚的方法

    公开(公告)号:US5200500A

    公开(公告)日:1993-04-06

    申请号:US569766

    申请日:1990-08-22

    IPC分类号: C08G75/02

    CPC分类号: C08G75/0254 C08G75/0231

    摘要: The present invention discloses a process for producing a granular polyarylene sulfide which has a high melt viscosity and a high degree of cross-linkage, becomes gel under melting and is easy to handle in the production and the fabrication thereof.The process disclosed herein comprises (1) a step (A) an initial-stage polymerization step for obtaining a polyarylene sulfide by reacting an alkali metal sulfide, a dihaloaromatic compound and a polyhaloaromatic compound, having three or more halogen substituents in a molecule, in the presence of water in an amount of 0.5 to 2.9 moles per mol of said alkali metal sulfide at a temperature in the range of 180.degree. to 235.degree. C. until the total conversion ratio of said dihalo- and polyhaloaromatic compounds reaches 50 to 98% and the melt viscosity of a polyarylene sulfide obtained at the end of the step becomes 5 to 5,000 poise, measured at 310.degree. C. and a shear rate of 1,200/second; (2) a step (B) a temperature raising step in which while adjusting an amount of water to be 2.5 to 7 moles per mol of fed alkali metal sulfide, a temperature raising condition from the temperature of step (A) to 240.degree. C. is controlled so that the melt viscosity of a polymer obtained at 240.degree. C. reaches 300 to 10,000 poise, measured at 310.degree. C. and a shear rate of 1,200/second and the temperature raising rate between 240.degree. C. and a temperature of the following step (C) is further controlled to be within the range of 10.degree. to 100.degree. C./hour; and (3) a step (C) a second -stage polymerization step for further continuing the reaction at a temperature of 245.degree. to 290.degree. C. until a melt viscosity of the final product reaches not lower than 1.times.10.sup.5 poise, measured at 330.degree. C. and a shear rate of 2/second.The present invention also discloses a granular cross-linked polyarylene sulfide produced by the process described above.

    摘要翻译: 本发明公开了一种具有高熔体粘度和高交联度的粒状聚芳硫醚的制造方法,在熔融时变成凝胶,在制造和制造中易于处理。 本文公开的方法包括(1)步骤(A)初步阶段聚合步骤,用于通过在分子中具有三个或更多个卤素取代基的碱金属硫化物,二卤代芳族化合物和多卤芳族化合物在分子中反应获得聚芳硫醚 在180-235℃的温度范围内,每摩尔所述碱金属硫化物的存在量为0.5-2.9摩尔,直到所述二卤代和多卤芳族化合物的总转化率达到50-98% 在步骤结束时得到的聚芳硫醚的熔融粘度在310℃下测定为5〜5000泊,剪切速度为1200 /秒; (2)步骤(B)升温步骤,其中当将每一摩尔进料的碱金属硫化物的水量调整为2.5至7摩尔时,将升温条件从步骤(A)的温度升至240℃ 被控制使得在240℃下获得的聚合物的熔体粘度达到300至10,000泊,在310℃和剪切速率为1200 /秒,升温速率在240℃和温度 的下一步骤(C)进一步控制在10℃至100℃/小时的范围内; 和(3)步骤(C)第二阶段聚合步骤,用于在245℃至290℃的温度下进一步继续反应,直到最终产物的熔体粘度达到不低于1×10 5泊,在330℃测量 C.和剪切速率2 /秒。 本发明还公开了通过上述方法制备的粒状交联聚芳硫醚。

    Stretched poly(arylene thioether-ketone) films and production process
thereof
    36.
    发明授权
    Stretched poly(arylene thioether-ketone) films and production process thereof 失效
    拉伸聚(亚芳基硫醚酮)薄膜及其制备方法

    公开(公告)号:US4897238A

    公开(公告)日:1990-01-30

    申请号:US354323

    申请日:1989-05-19

    摘要: Disclosed herein is a stretched poly(arylene thioether-ketone) film made of a thermoplastic material which comprises (A) 100 parts by weight of a melt-stable poly(arylene thioether-ketone) having predominant recurring units of the formula ##STR1## and having a melting point, Tm of 310.degree.-380.degree. C., a residual melt crystallization enthalpy, .DELTA.Hmc (420.degree. C./10 min) of at least 10 J/g and a melt crystallization temperature, Tmc (420.degree. C./10 min) of at least 210.degree. C., and a reduced viscosity of 0.3-2 dl/g as determined by viscosity measurement at 25.degree. C. and a polymer concentration of 0.5 g/dl in 98 percent by weight sulfuric acid; and optionally, (B) up to 100 parts by weight of at least one of thermoplastic resins and/or up to 15 parts by weight of at least one of fillers. Its production process is also disclosed.

    摘要翻译: 本文公开了由热塑性材料制成的拉伸聚(亚芳基硫醚 - 酮)膜,其包含(A)100重量份具有主题的式(IMAGE)重复单元的熔融稳定聚(亚芳基硫醚 - 酮)和 熔点为310〜-380℃,残余熔融结晶焓,DELTA Hmc(420℃/分钟)为10J / g,熔融结晶温度Tmc(420℃) 10分钟),通过在25℃下的粘度测定和在98重量%硫酸中的聚合物浓度为0.5g / dl测定的比浓粘度为0.3-2dl / g ; 和(B)至多100重量份的至少一种热塑性树脂和/或至多15重量份的至少一种填料。 其生产过程也被披露。

    Phenylene sulfide resin compositions
    40.
    发明授权
    Phenylene sulfide resin compositions 失效
    苯硫醚树脂组合物

    公开(公告)号:US4659789A

    公开(公告)日:1987-04-21

    申请号:US821916

    申请日:1986-01-23

    摘要: A novel phenylenesulfide resin composition comprises(I) a poly-p-phenylenesulfide,(II) a poly-m-phenylenesulfide, and(III) a phenylenesulfide block copolymer consisting essentially of a repeating unit ##STR1## (A) and a repeating unit ##STR2## (B), wherein from 20 to 5,000 units on the average of the repeating units (A) linked together exist in the molecular chain in the form of the block component, and wherein the molar faction (X) of the repeating unit (A) is in the range of 0.10 to 0.95, the mixing ratio of the three components (I), (II) and (III) being in a specified range. The composition is characterized by compatibility between the components (I) and (II), whereby transparency, physical properties and other characteristics thereof are markedly enhanced.

    摘要翻译: 一种新型的苯基硫化物树脂组合物包含(I)聚对苯基苯醚,(II)聚间苯二亚胺和(III)基本上由重复单元(A)和重复单元 (B),其中连接在一起的重复单元(A)的平均重复单元(A)的平均20至5,000个单元以块组分的形式存在于分子链中,并且其中重复单元的摩尔数(X) (A)在0.10〜0.95的范围内,三种成分(I),(II)和(III)的混合比在规定范围内。 组合物的特征在于组分(I)和(II)之间的相容性,由此透明性,物理性质和其它特性显着增强。