A method of manufacturing rubber modified styrene resins and resins produced by such a method
    5.
    发明公开
    A method of manufacturing rubber modified styrene resins and resins produced by such a method 失效
    一种制备橡胶改性苯乙烯系树脂及由该方法制备的树脂的过程。

    公开(公告)号:EP0028517A1

    公开(公告)日:1981-05-13

    申请号:EP80303886.8

    申请日:1980-10-31

    IPC分类号: C08F279/02

    CPC分类号: C08F279/02 C08F212/08

    摘要: A method of manufacturing rubber modified styrene resins comprises the steps of (a) polymerizing a styrene monomer in the presence of a polymer rubber comprising butadiene moieties and optionally an organic peroxide in the ratio of 100 parts by weight, 3 to 15 parts by weight and 0 to 0.01 parts by weight respectively until the polymerization yield of the styrene monomer becomes 2 to 5 times the original weight of the polymer rubber; and (b) polymerizing the full amount of polymer mixture from step (a) and 0 to 200 parts by weight of fresh styrene monomer in the presence of 0.01 to 0.9 parts by weight of organic peroxide until the polymerization yield of the styrene monomer specific to step (b) becomes at least 1.5 times the polymerization yield of the styrene monomer in step (a). The molded product of the resin thus obtained shows an improved impact strength at the portions where polystyrene molecule orientation tends to occur.

    Continuous treatment process for polymer compositions
    8.
    发明公开
    Continuous treatment process for polymer compositions 失效
    聚合物组合物的连续处理方法

    公开(公告)号:EP0200368A3

    公开(公告)日:1988-03-16

    申请号:EP86302378

    申请日:1986-04-01

    IPC分类号: C08F06/00 B29B13/00

    摘要: A continuous treating process for a rubber modified styrenic polymer composition produced by bulk or solution polymerization and containing at least 1% by weight of a rubber component and at least 16% by weight of the total amount of an unreacted monomer and solvent is provided. The polymer composition is treated in a two stage volatile component separation apparatus each stage comprising a multi-tube preheater (4, 14) and a volatilizer (5,15) to remove the unreacted monomer and other volatile components (via lines 20, 25); in the first stage volatilizer (4, 5) the composition treated therein contains 3 - 15% by weight of the unreacted monomer and solvent, and in the second stage volatilizer (14, 15) voltaile components are further stripped from the composition reducing their contents to negligible levels.

    Continuous treatment process for polymer compositions
    9.
    发明公开
    Continuous treatment process for polymer compositions 失效
    Kultuierliches Behandlungsverfahrenfürpolymere Zusammensetzungen。

    公开(公告)号:EP0200368A2

    公开(公告)日:1986-11-05

    申请号:EP86302378.4

    申请日:1986-04-01

    IPC分类号: C08F6/00 B29B13/00

    摘要: A continuous treating process for a rubber modified styrenic polymer composition produced by bulk or solution polymerization and containing at least 1% by weight of a rubber component and at least 16% by weight of the total amount of an unreacted monomer and solvent is provided. The polymer composition is treated in a two stage volatile component separation apparatus each stage comprising a multi-tube preheater (4, 14) and a volatilizer (5,15) to remove the unreacted monomer and other volatile components (via lines 20, 25); in the first stage volatilizer (4, 5) the composition treated therein contains 3 - 15% by weight of the unreacted monomer and solvent, and in the second stage volatilizer (14, 15) voltaile components are further stripped from the composition reducing their contents to negligible levels.

    摘要翻译: 提供了通过本体或溶液聚合制备并含有至少1重量%的橡胶组分和至少16重量%的未反应单体和溶剂总量的橡胶改性苯乙烯聚合物组合物的连续处理方法。 聚合物组合物在两级挥发性组分分离装置中处理,每个阶段包括多管预热器(4,14)和挥发剂(5,15),以除去未反应的单体和其它挥发性组分(经由管线20,25) ; 在第一阶段挥发器(4,5)中,其中处理的组合物含有3-15重量%的未反应单体和溶剂,在第二阶段挥发器(14,15)中,将挥发成分进一步从组合物中除去,从而减少其含量 可以忽略不计。