Continuous process for producing rubber modified high-impact resins
    1.
    发明授权
    Continuous process for producing rubber modified high-impact resins 失效
    生产橡胶改性高冲击树脂的连续工艺

    公开(公告)号:US4587294A

    公开(公告)日:1986-05-06

    申请号:US545167

    申请日:1983-10-25

    CPC分类号: C08F279/04 Y10S525/942

    摘要: In a continuous bulk or solution polymerization process for producing rubber modified high-impact resins which comprises continuously feeding a raw material solution comprising a mixture of an aromatic vinyl monomer and a vinyl cyanide monomer and a rubber component dissolved in the mixture, together with a radical polymerization initiator, to a first reactor, polymerizing the raw material solution under high-shear agitation to a conversion required to transform the rubber component phase into dispersed particles, withdrawing the reaction mixture continuously from the first reactor at a rate corresponding to the feed rate of the raw material solution, and feeding the reaction mixture to a second or more reactors for further polymerization, rubber modified high-impact resins exhibiting excellent chemical resistance, thermal resistance and rigidity and having a good surface gloss can be produced by properly determining the weight ratio of the aromatic vinyl monomer to the vinyl cyanide monomer present in the raw material solution, the content of the rubber component in the raw material solution, the content of the solvent in the raw material solution, the property of the rubber component, the property of the radical polymerization initiator and the amount of initiator used, as well as the conversion of the monomers at the first reactor.

    摘要翻译: 在用于生产橡胶改性的高抗冲树脂的连续的本体或溶液聚合方法中,其包括连续地将包含芳族乙烯基单体和乙烯基氰单体的混合物的原料溶液和溶解在该混合物中的橡胶组分连同一起 聚合引发剂,在第一反应器中,在高剪切搅拌下将原料溶液聚合成将橡胶组分相转化成分散颗粒所需的转化率,将反应混合物从第一反应器连续地以对应于 原料溶液,并将反应混合物进料到第二个或更多个反应器用于进一步聚合,可以通过适当地确定重量比来制备具有优异的耐化学性,耐热性和刚性并且具有良好表面光泽度的橡胶改性的高冲击性树脂 的芳族乙烯基单体与乙烯基氰 存在于原料溶液中的原料溶液中的原料溶液中的橡胶组分的含量,原料溶液中的溶剂含量,橡胶组分的性质,自由基聚合引发剂的性质和引发剂的量 使用,以及在第一反应器处的单体的转化。

    Continuous process for preparing rubber modified high impact resin
    2.
    发明授权
    Continuous process for preparing rubber modified high impact resin 失效
    制备橡胶改性高冲击树脂的连续工艺

    公开(公告)号:US5210132A

    公开(公告)日:1993-05-11

    申请号:US961026

    申请日:1992-10-14

    IPC分类号: C08F279/02 C08F291/02

    CPC分类号: C08F291/02 C08F279/02

    摘要: A process for preparing rubber modified high impact resins by dissolving a rubbery polymer in a monomer containing an aromatic vinyl monomer or a mixture of an aromatic vinyl monomer and a vinyl cyanide monomer followed by polymerizing the monomer, the two steps being carried out in at least two polymerization reactors with a particle disperser placed between the first and second reactors. High impact resins having excellent surface properties are obtained with a savings in a power consumption by controlling:(1) the relationship between the concentration of the polymerized monomer and the content of the rubbery polymer in the first reactor;(2) the relationship between the volume occupied by the polymerizing liquid in the first reactor and the inner volume of the particle disperser; and(3) the peripheral linear velocity of a shearing stirrer in the particle disperser.

    摘要翻译: 通过将橡胶状聚合物溶解在含有芳族乙烯基单体或芳香族乙烯基单体和乙烯基氰单体的混合物的单体中,然后使单体聚合,制备橡胶改性的高冲击性树脂的方法,这两个步骤至少进行 两个具有放置在第一和第二反应器之间的分散器的聚合反应器。 通过控制:(1)聚合单体的浓度与第一反应器中橡胶状聚合物的含量之间的关系,可以节省功耗,获得具有优异表面性能的高冲击性树脂; (2)第一反应器中的聚合液体占据的体积与粒子分散器的内体积之间的关系; 和(3)粒子分散器中的剪切搅拌器的外围线速度。

    Resin compositions having excellent antistatic properties
    4.
    发明授权
    Resin compositions having excellent antistatic properties 失效
    具有优异抗静电性能的树脂组合物

    公开(公告)号:US5714534A

    公开(公告)日:1998-02-03

    申请号:US539749

    申请日:1995-10-05

    摘要: A resin composition having excellent antistatic properties is provided which comprises (A) 100 parts by weight of a styrene resin, (B) 3 to 35 parts by weight of a polyethylene oxide, (C) 0.1 to 10 parts by weight of a styrene-acrylonitrile-hydroxyalkyl acrylate copolymer and/or a styrene-acrylonitrile-hydroxyalkyl methacrylate copolymer, (D) 4 to 100 parts by weight of a (meth)acrylic ester polymer, and/or an oxide selected from the group consisting of titanium oxide, zinc oxide and magnesium oxide, the oxide being present in an amount of 0.7 to 5 parts by weight per 100 parts by weight of the combined amount of components (A) and (B), and (E) a surface-active agent comprising a specified sulfonic acid salt or alkylsulfuric acid salt, the surface-active agent being present in an amount of 0.4 to 5 parts by weight per 100 parts by weight of the combined amount of components (A), (B), (C) and (D). This resin composition can be used for general household articles including, for example, wardrobe cases.

    摘要翻译: 提供了具有优异抗静电性能的树脂组合物,其包含(A)100重量份的苯乙烯树脂,(B)3至35重量份的聚环氧乙烷,(C)0.1至10重量份的苯乙烯 - 丙烯腈 - 羟烷基丙烯酸酯共聚物和/或苯乙烯 - 丙烯腈 - 甲基丙烯酸羟烷基酯共聚物,(D)4〜100重量份的(甲基)丙烯酸酯聚合物,和/或选自氧化钛,锌 氧化物和氧化镁,氧化物的存在量为每100重量份组分(A)和(B)的组合量为0.7-5重量份,和(E)包含指定的 磺酸盐或烷基硫酸盐,表面活性剂的存在量为每100重量份组分(A),(B),(C)和(D)的组合量为0.4-5重量份 )。 该树脂组合物可以用于一般家庭用品,例如衣柜外壳。

    Injection-expansion molded, thermoplastic resin product and production
process thereof
    5.
    发明授权
    Injection-expansion molded, thermoplastic resin product and production process thereof 失效
    注塑膨胀成型,热塑性树脂制品及其制造方法

    公开(公告)号:US5997781A

    公开(公告)日:1999-12-07

    申请号:US829603

    申请日:1997-03-31

    摘要: Disclosed is a process for the production of an injection-expansion molded, thermoplastic resin product. The process comprises a gas dissolving step, a cooling step, a metering and injection step, and an expansion controlling step. Specifically, a thermoplastic resin is molten in a continuous plasticator (1), supercritical carbon dioxide and/or nitrogen is added as a blowing agent, and the blowing agent and the thermoplastic resin are formed into a mutually-dissolved state. The resultant molten resin composition is cooled within the plasticator while maintaining a pressure equal to or higher than a critical pressure of the blowing agent. The thus-cooled molten resin composition is metered by an injector (7) and is filled in a mold (8). An internal pressure of the mold is lowered beyond the critical pressure of the blowing agent to produce cell nuclei, whereby the cell diameter is controlled. The blowing agent is maintained in a supercritical state up to the metering and injection step.

    摘要翻译: 公开了一种用于生产注射膨胀模制的热塑性树脂产品的方法。 该方法包括气体溶解步骤,冷却步骤,计量和注入步骤以及膨胀控制步骤。 具体地说,热塑性树脂在连续塑化器(1)中熔融,加入超临界二氧化碳和/或氮作为发泡剂,发泡剂和热塑性树脂形成相互溶解状态。 将所得熔融树脂组合物在塑化器内冷却,同时保持等于或高于发泡剂临界压力的压力。 如此冷却的熔融树脂组合物由注射器(7)计量并填充在模具(8)中。 模具的内部压力降低到超过发泡剂的临界压力以产生细胞核,从而控制细胞直径。 发泡剂维持在超临界状态直到计量和注射步骤。

    Process for preparing expanded product of thermoplastic resin
    6.
    发明授权
    Process for preparing expanded product of thermoplastic resin 失效
    制备热塑性树脂膨胀产品的方法

    公开(公告)号:US5830393A

    公开(公告)日:1998-11-03

    申请号:US887323

    申请日:1997-07-02

    IPC分类号: B29C44/34 B29C44/46 B29D27/00

    摘要: A process for preparing an expanded product of a thermoplastic resin which includes a gas dissolving step of adding supercritical carbon dioxide and/or nitrogen as an blowing agent to a thermoplastic resin, and melting it in the thermoplastic resin, a cooling step of cooling the resulting molten resin composition under a pressure not less than a critical pressure of the blowing agent, a nuclei forming step of discharging the molten resin composition from a die to lower the pressure to a level not more than the critical pressure, and an expansion controlling step of cooling an expanded product of the thermoplastic resin to a level not more than a glass transition temperature or a crystallization temperature of the resin to control a cell diameter of the expanded product.

    摘要翻译: 一种制备热塑性树脂的发泡产品的方法,包括将超临界二氧化碳和/或氮气作为发泡剂加入到热塑性树脂中并在热塑性树脂中熔化的气体溶解步骤,冷却步骤, 在不低于发泡剂的临界压力的压力下的熔融树脂组合物,将熔融树脂组合物从模具中排出以将压力降低到临界压力以下的成核步骤,以及膨胀控制步骤 将热塑性树脂的发泡产品冷却至不超过树脂的玻璃化转变温度或结晶温度的水平,以控制膨胀产品的泡孔直径。