ABS molding compositions having improved processability
    74.
    发明授权
    ABS molding compositions having improved processability 失效
    ABS成型组合物具有改善的加工性能

    公开(公告)号:US06639000B2

    公开(公告)日:2003-10-28

    申请号:US09955890

    申请日:2001-09-18

    IPC分类号: C08K520

    摘要: An additive mixture containing a dibenzoate and either or both of a compound containing at least one structural unit and a compound containing at least one structural unit is disclosed. The additive combination enhances the processability of a thermoplastic molding composition that contains a (co)polymer of styrene, methyl methacrylate, acrylonitrile, methacrylonitrile, maleic anhydride and N-substituted maleimide and a graft copolymer.

    摘要翻译: 公开了含有二苯甲酸酯和含有至少一个结构单元的化合物和包含至少一种结构单元的化合物中的一种或两种的添加剂混合物。 添加剂组合增强了含有苯乙烯,甲基丙烯酸甲酯,丙烯腈,甲基丙烯腈,马来酸酐和N-取代的马来酰亚胺的共聚合物和接枝共聚物的热塑性模塑组合物的加工性能。

    Elastic-thermoplastic graft polymers prepared by multi-stage free radical polymerization

    公开(公告)号:US06569951B2

    公开(公告)日:2003-05-27

    申请号:US09967311

    申请日:2001-09-28

    IPC分类号: C08F27904

    摘要: An elastic-thermoplastic graft polymer prepared by a multi-stage free radical polymerization is described. The elastic-thermoplastic graft polymer is prepared by polymerizing (i) one or more monomers containing vinyl groups, and (ii) at least one molecular weight regulating compound, in the presence of (iii) at least one rubber in latex form. The ratio of monomers (M) to the molecular weight regulating compound (MWR) is altered throughout the various stages of the polymerization method. The M:MWR ratio is: from 50:1 to 400:1 in the first stage; from 100:1 to 800:1 in the second stage; and from 200:1 to 2000:1 in the third stage of the polymerization. In at least one further reaction stage of the polymerization, the monomers, in the absence of the molecular weight regulating compound, are polymerized in the presence of the rubber. This further reaction stage occurs before the first stage and/or after the third stage of the polymerization. The multi-stage polymerization is conducted such that: M:MWR (first stage)≦M:MWR (second stage)

    ABS type thermoplastic moulding compounds
    76.
    发明授权
    ABS type thermoplastic moulding compounds 失效
    ABS型热塑性成型料

    公开(公告)号:US5719232A

    公开(公告)日:1998-02-17

    申请号:US424656

    申请日:1995-04-19

    IPC分类号: C08F2/22 C08L55/02

    CPC分类号: C08L55/02 Y10S525/902

    摘要: ABS type thermoplastic moulding compounds obtainable by A) producing a rubber latex with an average particle diameter d.sub.50 of 30 to 160 nm and a gel content of 75 to 100 wt. % B) emulsion polymerization of an amount of butadiene and optionally up to 50 wt. % (with reference to the total amount of monomer in stage B) of a comonomer in the presence of the rubber obtained in stage A, such that a rubber latex (B) with an average particle diameter d.sub.50 =220 to 330 nm and a gel content of 25 to 70 wt. % is produced, C) emulsion polymerization of 40 to 95 parts by wt. of a mixture of styrene and acrylonitrile, which optionally contains up to 50 wt. % (with reference to the total amount of monomers used in stage C) of one or more comonomers, in the presence of 5 to 60 parts by wt. (with reference to the solids) of the rubber obtained in stage B by introducing the monomer in such a way that 55 to 90 wt. % of the monomers are added within the first half of the total monomer introduction time, and D) mixing the polymer obtained in stage C, preferably after first converting it into a powder, with at least one thermoplastic vinyl resin.

    摘要翻译: ABS型热塑性成型化合物,其可通过以下方法得到:A)制备平均粒径d50为30〜160nm,凝胶含量为75〜100重量%的橡胶胶乳。 B)一定量的丁二烯的乳液聚合和任选的至多50wt。 在阶段A中获得的橡胶存在下,共聚单体的%(相对于阶段B中的单体的总量),使得平均粒径d 50 = 220〜330nm的橡胶胶乳(B)和凝胶 含量为25〜70wt。 产生%,C)乳液聚合40〜95重量份。 的苯乙烯和丙烯腈的混合物,其任选地含有至多50重量% 在5至60重量份存在下,一种或多种共聚单体的%(相对于阶段C中使用的单体的总量)。 (相对于固体),通过以55〜90重量%的比例引入单体,得到阶段B中得到的橡胶。 在全部单体引入时间的前半部分内加入%的单体,和D)将在阶段C中获得的聚合物,优选在首先将其转化为粉末之后,与至少一种热塑性乙烯基树脂混合。

    Thermoplastic ABS moulding compositions
    77.
    发明授权
    Thermoplastic ABS moulding compositions 失效
    热塑性ABS模塑组合物

    公开(公告)号:US5708079A

    公开(公告)日:1998-01-13

    申请号:US642913

    申请日:1996-05-06

    CPC分类号: C08L55/02

    摘要: Thermoplastic moulding compositions containing A) 5 to 95 parts by wt of at least one particle-shaped graft rubber polymer of the ABS type manufactured by emulsion polymerization, in which the graft rubber particles have such a structure detectable by transmission electron microscope photographs, in which the individual particles contain irregular cell-shaped inclusions of resin-forming polymer and the surface of the particles shows such an irregular toothed structure, that for every particle imaged 5 to 30 of such teeth are present, which are distinguished from an idealized round particle (with a diameter d) by a diameter d+d/x with x=3 to 15, B) 95 to 5 parts by wt of at least one particle-shaped graft rubber polymer of the ABS type manufactured by emulsion polymerization, in which the graft rubber particles have such a structure detectable by transmission electron microscope photographs, in which the individual particles do not have a pronounced inner structure as in A) and possess a round particle shape with completely tooth-free surface and optionally C) 0 to 300 parts by wt of at least one thermoplastic rubber-free resin.

    摘要翻译: 含有A)5〜95重量份的通过乳液聚合制造的ABS型的至少一种颗粒状接枝橡胶聚合物,其中接枝橡胶颗粒具有通过透射电子显微镜照片可检测的结构,其中 单个颗粒含有不规则的形成树脂的聚合物的细胞形夹杂物,并且颗粒的表面显示出这种不规则的齿状结构,对于存在这种齿的5至30个的每个颗粒,其与理想化的圆形颗粒 直径d)直径d + d / x,x = 3〜15,B)95〜5重量份的通过乳液聚合制造的ABS型的至少一种颗粒状接枝橡胶聚合物,其中 接枝橡胶颗粒具有通过透射电子显微镜照片可检测的结构,其中单个颗粒不具有如A)中明显的内部结构,并具有 具有完全无牙表面的圆形颗粒形状和任选的C)0至300重量份的至少一种不含热塑性橡胶的树脂。

    ABS polymer compositions having a uniform matt surface
    79.
    发明授权
    ABS polymer compositions having a uniform matt surface 失效
    ABS聚合物组合物具有均匀的无光泽表面

    公开(公告)号:US5605963A

    公开(公告)日:1997-02-25

    申请号:US383832

    申请日:1995-02-06

    CPC分类号: C08L55/02

    摘要: ABS polymer compositions consisting ofA) 5 to 80 parts by weight of at least one ABS polymer prepared by mass polymerization or solution polymerization, having rubber particles with an average particle diameter of from 800 to 15,000 nm and a rubber content of from 1 to 20% by weight,B) 1 to 50 parts by weight of at least one ABS polymer prepared by emulsion polymerization, having an average particle diameter of from 50 to 500 nm and a rubber content of from 20 to 80% by weight,C) 0 to 70 parts by weight of at least one thermoplastic vinyl resin prepared by radical polymerization of at least two monomer components selected from styrene, .alpha.-methylstyrene, methyl methacrylate, acrylonitrile, N-phenylmaleimide andD) 0.5 to 10 parts by weight of at least one polybutadiene prepared by emulsion polymerization, having an average particle diameter d.sub.50 in the latex form of from 80 to 500 nm and a gel content of from 10 to 95% by weight.

    摘要翻译: ABS聚合物组合物,由A)5-80重量份的至少一种通过大量聚合或溶液聚合制备的ABS聚合物,具有平均粒径为800至15,000nm的橡胶颗粒和橡胶含量为1至20 B)1〜50重量份的通过乳液聚合制备的至少一种ABS聚合物,平均粒径为50〜500nm,橡胶含量为20〜80重量%,C)0 至70重量份的至少一种通过自由基聚合至少两种选自苯乙烯,α-甲基苯乙烯,甲基丙烯酸甲酯,丙烯腈,N-苯基马来酰亚胺和D)的单体组分制备的热塑性乙烯基树脂,D)至少0.5至10重量份 一种通过乳液聚合制备的聚丁二烯,其胶乳形式的平均粒径d50为80-500nm,凝胶含量为10-95重量%。