公开(公告)号：US06391965B1

公开(公告)日：2002-05-21

申请号：US08861657

申请日：1997-05-22

申请人： Takashi Koura ,  Mune Iwamoto ,  Ryuichi Sugimoto ,  Takayasu Ikeda ,  Koji Kawano ,  Shiro Otsuzuki

发明人： Takashi Koura ,  Mune Iwamoto ,  Ryuichi Sugimoto ,  Takayasu Ikeda ,  Koji Kawano ,  Shiro Otsuzuki

IPC分类号： C08F27904

CPC分类号： C08L55/02 ,  C08F279/04 ,  C08L69/00 ,  C08L2666/14

摘要： A process is disclosed for the continuous production of an ABS resin. The polymerization step comprises at least two substeps, one being a first-stage substep of forming particles of the rubbery polymer and the other a second-stage substep of adjusting the particle sizes of the particles. The first-stage substep is conducted in a polymerization system making use of a plug flow reactor or a batch polymerization reactor, and conducts polymerization at least until the particles are formed in the polymerization mixture. The second-stage substep increases a converted amount of the monomer component into the polymer compared with that in the particle forming substep and makes the particles smaller. A polycarbonate-ABS resin composition is also disclosed.

摘要翻译： 公开了用于连续生产ABS树脂的方法。 聚合步骤包括至少两个子步骤，一个是形成橡胶状聚合物颗粒的第一阶段子步骤，另一个是调整颗粒的粒度的第二阶段子步骤。 第一级子步骤在使用活塞流反应器或间歇式聚合反应器的聚合系统中进行，并进行至少直至聚合混合物中形成颗粒的聚合。 第二级子步骤将单体组分转化成聚合物，与颗粒形成子步骤相比，使颗粒更小。 还公开了一种聚碳酸酯-ABS树脂组合物。

公开(公告)号：US5891962A

公开(公告)日：1999-04-06

申请号：US527718

申请日：1995-09-13

申请人： Shiro Otsuzuki ,  Mune Iwamoto ,  Akihiko Nakajima ,  Masato Takaku ,  Hisao Morita ,  Koji Kawano

发明人： Shiro Otsuzuki ,  Mune Iwamoto ,  Akihiko Nakajima ,  Masato Takaku ,  Hisao Morita ,  Koji Kawano

IPC分类号： C08F287/00 ,  C08L25/14 ,  C08L53/02 ,  C08L33/10 ,  C08F279/06

CPC分类号： C08F287/00 ,  C08L25/14 ,  C08L53/02

摘要： A transparent, rubber-modified styrene resin comprises 70 to 96 parts by weight of a copolymer formed of 20 to 70 wt. % of styrene monomer units and 30 to 80 wt. % of alkyl (meth)acrylate monomer units and 4 to 30 parts by weight of a rubbery polymer. The rubbery polymer is dispersed in the copolymer as particles having an average particle size of 0.1 to 2.0 .mu.m. At least 70 wt. % of the rubbery polymer is a styrene-butadiene block copolymer which is formed of 5 to 50 wt. % of styrene units and 50 to 95 wt. % of butadiene units, has a viscosity in a range of 3 to 60 cps when measured as a 5 wt. % styrene solution at 25.degree. C. and possesses a ratio (Mw/Mn) of a weight average molecular weight (Mw) to a number average molecular weight (Mn) in a range of 1.0 to 1.8. The copolymer and the rubbery polymer have substantially the same refractive index. Also disclosed is a production process of the transparent, rubber-modified styrene resin, which comprises polymerizing a styrene monomer and an alkyl (meth)acrylate to a high degree of polymerized conversion in the presence of the rubbery polymer so that the rubbery polymer is formed into particles while allowing the copolymer to occur with substantially the same refractive index as the rubbery polymer.

摘要翻译： 透明的橡胶改性苯乙烯树脂包含70至96重量份由20至70重量％ ％的苯乙烯单体单元和30〜80wt。 ％的（甲基）丙烯酸烷基酯单体单元和4至30重量份的橡胶状聚合物。 将橡胶状聚合物作为平均粒径为0.1〜2.0μm的粒子分散在共聚物中。 至少70wt。 橡胶状聚合物的％为苯乙烯 - 丁二烯嵌段共聚物，其为5〜50重量％ ％的苯乙烯单元和50至95wt。 丁二烯单元的％，当测量为5重量％时，其粘度在3至60cps的范围内。 ％苯乙烯溶液，并且具有在1.0至1.8的范围内的重均分子量（Mw）与数均分子量（Mn）之比（Mw / Mn）。 共聚物和橡胶状聚合物具有基本上相同的折射率。 还公开了透明橡胶改性苯乙烯树脂的制造方法，其包括在橡胶状聚合物的存在下使苯乙烯单体和（甲基）丙烯酸烷基酯聚合成高聚合转化率，从而形成橡胶状聚合物 同时使共聚物以与橡胶状聚合物基本相同的折射率发生。

公开(公告)号：US5473014A

公开(公告)日：1995-12-05

申请号：US34411

申请日：1993-03-19

申请人： Toshihiko Ando ,  Mune Iwamoto ,  Masahiro Kaneko ,  Kouzou Ichikawa ,  Akihiko Nakajima ,  Masato Takaku

发明人： Toshihiko Ando ,  Mune Iwamoto ,  Masahiro Kaneko ,  Kouzou Ichikawa ,  Akihiko Nakajima ,  Masato Takaku

IPC分类号： C08F287/00 ,  C08L51/04 ,  C08L53/02

CPC分类号： C08F287/00 ,  Y10S525/902

摘要： A rubber modified styrenic resin composition which can be obtained by dispersing rubber-like polymer particles in a homopolymer or a copolymer of a styrenic monomer. The rubber modified styrenic resin composition has:(a) a volume-average particle size of the rubber-like polymer particles is in the range of from 0.2 to 0.8 .mu.m,(b) a particle size distribution curve on the basis of the volume of the rubber-like polymer particles has one peak,(c) a ratio of a 5% value to a 95% value of the cumulative distribution of the particle size on the basis of the volume of the rubber-like polymer particles is in the range of from 3 to 45.The rubber-like polymer particles comprise (i) a styrene-butadiene block copolymer (I), and (ii)(1) a styrene-butadiene block copolymer (II), (2) a polybutadiene (III), or (3) a styrene-butadiene block copolymer (IV) and polybutadiene (V), wherein (I) contains 25-50 % styrene, (II) and (IV) contain 5-20% styrene, the weight ratio of: (I)/(II), (I)/(III) and (I)/(IV) is from 95/5 to 40/60 and {(I)+(IV)}/(V) is from 99/1 to 70/30 and (I) to (V) are of specified styrene solution viscosity.

摘要翻译： 橡胶改性苯乙烯树脂组合物，其可以通过将橡胶状聚合物颗粒分散在苯乙烯类单体的均聚物或共聚物中而获得。 橡胶改性苯乙烯树脂组合物具有：（a）橡胶状聚合物粒子的体积平均粒径在0.2〜0.8μm的范围内，（b）基于体积的粒径分布曲线 的橡胶状聚合物颗粒具有一个峰，（c）基于橡胶状聚合物颗粒的体积，5％值与粒径的累积分布的95％的比率在 橡胶状聚合物颗粒包含（i）苯乙烯 - 丁二烯嵌段共聚物（I）和（ii）（1）苯乙烯 - 丁二烯嵌段共聚物（II），（2）聚丁二烯（ III）或（3）苯乙烯 - 丁二烯嵌段共聚物（IV）和聚丁二烯（V），其中（I）含有25-50％苯乙烯，（II）和（IV）含有5-20％苯乙烯，重量比 的（I）/（II），（I）/（III）和（I）/（IV）为95/5至40/60，{（I）+（IV）} /（V） 99/1至70/30和（I）至（V）具有规定的苯乙烯溶液粘度。