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。

    Transparent heat-resistant styrene-base copolymer
    4.
    发明授权
    Transparent heat-resistant styrene-base copolymer 失效
    透明耐热苯乙烯基共聚物

    公开(公告)号:US5191046A

    公开(公告)日:1993-03-02

    申请号:US663083

    申请日:1991-03-01

    IPC分类号: C08F212/04

    CPC分类号: C08F212/04

    摘要: A transparent heat-resistant styrene-base copolymer comprising specific amounts of units derived respectively from (a) a styrene-type monomer, (b) a (meth)acrylonitrile monomer and/or (meth)acrylic ester type monomer and (c) a phenylmaleimide monomer, in which the weight ratio (b)/(c) and the ratio of the weight average molecular weight to the number average molecular weight fall within their respective specific ranges and the amount of the phenylmaleimide-type monomer still remaining in the copolymer is below a certain specific concentration.

    摘要翻译: (a)苯乙烯类单体,(b)(甲基)丙烯腈单体和/或(甲基)丙烯酸酯类单体和(甲基)丙烯酸酯类单体)的特定量的单元的透明耐热性苯乙烯 - 共聚物,(c) 苯基马来酰亚胺单体,其中重量比(b)/(c)和重均分子量与数均分子量的比例落在它们各自的特定范围内,并且仍然存在于共聚物中的苯基马来酰亚胺型单体的量 低于某一特定浓度。

    Rubber dispersed copolymer resin
    5.
    发明授权
    Rubber dispersed copolymer resin 失效
    橡胶分散共聚树脂

    公开(公告)号:US4808661A

    公开(公告)日:1989-02-28

    申请号:US899867

    申请日:1986-08-25

    摘要: The invention provides a rubber dispersed copolymer resin having excellent heat resistance, impact strength and moldability and composed of (1) a dispersed phase formed of a rubbery polymer and copolymerized styrene-type, acrylonitrile-type and maleimide-type monomers, said rubbery polymer specifically controlled occluding the copolymer of monomers, being grafted with the copolymer and/or forming a multicomponent gel together with copolymers, and (2) a continuous phase formed at least of a specifically controlled copolymer of the styrenetype, acrylonitrile-type and maleimide-type monomers. The resin is useful as a molding material for electric appliances, electronic equipment and cars.

    摘要翻译: 本发明提供了具有优异的耐热性,冲击强度和成型性的橡胶分散共聚物树脂,它由(1)由橡胶状聚合物和共聚苯乙烯型丙烯腈 - 型马来酰亚胺型单体形成的分散相组成,所述橡胶状聚合物特别 控制阻塞共聚物与共聚物接枝和/或与共聚物一起形成多组分凝胶,和(2)至少形成苯乙烯类,丙烯腈型和马来酰亚胺型单体的特异性控制共聚物的连续相 。 该树脂可用作电器,电子设备和汽车的成型材料。

    Anionically-polymerized-rubber-modified styrene copolymers
    8.
    发明授权
    Anionically-polymerized-rubber-modified styrene copolymers 失效
    阴离子聚合橡胶改性苯乙烯共聚物

    公开(公告)号:US4972024A

    公开(公告)日:1990-11-20

    申请号:US224329

    申请日:1988-07-26

    摘要: Disclosed herein is a rubber-modified styrene copolymer which contains as an impact strength modifier a rubbery polymer having a viscosity of 2-250 centipoises as measured at 25.degree. C. as a 5 wt. % styrene solution and a styrene insoluble content lower than 0.1 wt. %, produced by anionic polymerization and dispersed in a continuous phase of a styrene-acrylonitrile copolymer. The rubbery polymer contains small particles of the same styrene-acrylonitrile copolymer occluded in the form of cells. The areas of particles in each of which the maximum cell diameter is smaller than 0.1 .mu.m are at least 40% of the area of all the particles of the rubbery polymer and the volume average particle size of these particles is 0.1-0.4 .mu.m. The weight ratio of the monomers in the styrene-acrylonitrile copolymer is 90/10.gtoreq.styrene/acrylonitrile.gtoreq.55/45. Per 100 parts by weight of the copolymer, the proportions of polymers having a molecular weight greater than 1,000,000 is smaller than 0.5 part by weight while the proportion of polymers having a molecular weight greater than 1,200,000 is smaller than 0.01 part by weight.

    摘要翻译: 本文公开了一种橡胶改性苯乙烯共聚物,其包含作为冲击强度改性剂的橡胶状聚合物,其粘度为2550厘泊,在25℃下测量为5重量% %苯乙烯溶液和低于0.1重量%的苯乙烯不溶物含量。 %,通过阴离子聚合制备并分散在苯乙烯 - 丙烯腈共聚物的连续相中。 橡胶状聚合物含有以细胞形式封闭的相同苯乙烯 - 丙烯腈共聚物的小颗粒。 最大电池直径小于0.1μm的颗粒面积至少为橡胶状聚合物颗粒面积的40%,这些颗粒的体积平均粒径为0.1-0.4μm。 苯乙烯 - 丙烯腈共聚物中单体的重量比为90/10> / =苯乙烯/丙烯腈> / = 55/45。 每100重量份共聚物,分子量大于1,000,000的聚合物的比例小于0.5重量份,而分子量大于1,200,000的聚合物的比例小于0.01重量份。