ABS molding compounds with improved toughness
    91.
    发明授权
    ABS molding compounds with improved toughness 失效
    具有改善韧性的ABS模塑料

    公开(公告)号:US5674940A

    公开(公告)日:1997-10-07

    申请号:US660467

    申请日:1996-06-07

    摘要: Thermoplastic molding compounds of the ABS type of A) at least one graft polymer obtainable by emulsion polymerization of styrene and acrylonitrile in a ratio by weight of 90:10 to 50:50, the styrene and/or acrylonitrile being completely or partly replaceable by .alpha.-methyl styrene, methyl methacrylate or N-phenyl maleic imide, in the presence of at least two butadiene polymer latices of type (A) and (B), of which each contains 0 to 50% by weight of another vinyl monomer in copolymerized form, the ratio by weight of the monomers used to the butadiene polymers used being 25:75 to 70:30, and B) at least one copolymer of styrene and acrylonitrile in a ratio by weight of 90:10 to 50:50, the styrene and/or acrylonitrile being completely or partly replaceable by .alpha.-methyl styrene, methyl methacrylate or N-phenyl maleic imide, characterized in that the butadiene polymer latex (A) has a particle diameter d.sub.50 of .ltoreq.250 nm, a width of the particle size distribution (measured as d.sub.90 -d.sub.10 from the integral particle size distribution) of 500 to 1000 nm and a gel content of .ltoreq.70% by weight, the butadiene polymer latex (B) has a particle diameter d.sub.50 of .gtoreq.300 nm, a width of the particle size distribution (measured as d.sub.90 -d.sub.10 from the integral particle size distribution) of 50 to 500 nm and a gel content of .gtoreq.70% by weight and the graft polymerization is carried out by addition of the monomers to the mixture of butadiene polymer latices (A) and (B) in such a way that 55 to 90% by weight of the monomers are added in the first half of the monomer addition time.

    摘要翻译: ABS型的热塑性成型化合物A)至少一种可通过苯乙烯和丙烯腈的重量比为90:10至50:50的乳液聚合而获得的接枝聚合物,苯乙烯和/或丙烯腈可完全或部分地被α 甲基苯乙烯,甲基丙烯酸甲酯或N-苯基马来酰亚胺,在至少两种类型(A)和(B)的丁二烯聚合物胶乳的存在下,其各自含有0至50重量%的共聚形式的另一个乙烯基单体 所用的丁二烯聚合物的单体重量比为25:75至70:30,B)苯乙烯和丙烯腈的至少一种共聚物的重量比为90:10至50:50,苯乙烯 和/或丙烯腈由α-甲基苯乙烯,甲基丙烯酸甲酯或N-苯基马来酰亚胺完全或部分替代,其特征在于丁二烯聚合物胶乳(A)的粒径d50为<250nm,宽度为 粒度分布(以d90-d10测量) m的整体粒度分布)为500〜1000nm,凝胶含量为70重量%,丁二烯聚合物胶乳(B)的粒径d50> 300nm,粒径 分布(从整体粒度分布测定为d90-d10)为50〜500nm,凝胶含量≥70重量%,接枝聚合通过将单体加入到丁二烯聚合物胶乳 (A)和(B),使得在单体添加时间的前半部分中加入55〜90重量%的单体。

    Elastic-thermoplastic graft polymers with improved properties
    92.
    发明授权
    Elastic-thermoplastic graft polymers with improved properties 失效
    具有改进性能的弹性 - 热塑性接枝聚合物

    公开(公告)号:US5668218A

    公开(公告)日:1997-09-16

    申请号:US644133

    申请日:1996-05-10

    摘要: Elastic-thermoplastic graft polymers manufactured by radical emulsion polymerisation of resin-forming vinyl monomers in the presence of rubber present in latex form with the use of a combination of a peroxide of formula (I) ##STR1## where R.sup.1 signifies alkyl, cycloalkyl and aryl groups with 4 to 20 carbon atoms,X the groups --COOH and --SO.sub.3 H as well as their alkali, alkaline-earth or ammonium salts,n an integer in the range from 1 to 6,A alkylene, cycloalkylene and arylene groups with 6 to 40 carbon atomsand a reducing agent as initiator system, a method for their manufacture and their use as moulding compositions.

    摘要翻译: 弹性 - 热塑性接枝聚合物是通过在胶乳形式的橡胶存在下,通过使用式(I)的过氧化物(I)的组合使树脂形成乙烯基单体进行自由基乳液聚合制备的,其中R 1表示烷基, 具有4至20个碳原子的环烷基和芳基,X是-COOH和-SO 3 H基团,以及它们的碱金属,碱土金属或铵盐,n为1至6的整数,亚烷基,亚环烷基和亚芳基 具有6至40个碳原子和还原剂作为引发剂体系,其制备方法及其作为模塑组合物的用途。

    Thermoplastic silicon rubber graft polymers (II)
    96.
    发明授权
    Thermoplastic silicon rubber graft polymers (II) 失效
    热塑性硅橡胶接枝聚合物(II)

    公开(公告)号:US4885209A

    公开(公告)日:1989-12-05

    申请号:US204022

    申请日:1988-06-08

    IPC分类号: C08F283/12 C08F285/00

    摘要: The invention relates to thermoplastic particulate graft polymers of a rubber (AB), consisting of a core (A) of rubber-like polymer of olefinically unsaturated monomers having softening temperatures (glass temperatures) below 0.degree. C. and a shell (B) of organopolysiloxane, and a polymer (C) of at least one ethylenically unsaturated monomer grafted into the rubber (AB) and to their use, optionally in admixture with brittle thermoplastic vinyl resins, as thermoplastic molding compositions.

    摘要翻译: 本发明涉及橡胶(AB)的热塑性颗粒接枝聚合物,其由软化温度(玻璃温度)低于0℃的烯属不饱和单体的橡胶状聚合物的芯(A)和壳(B)组成 有机聚硅氧烷和至少一种接枝到橡胶(AB)中的烯键式不饱和单体的聚合物(C),以及它们的用途,任选地与脆性热塑性乙烯基树脂混合,作为热塑性模塑组合物。

    Thermoplastic molding compositions
    98.
    发明授权
    Thermoplastic molding compositions 有权
    热塑性成型组合物

    公开(公告)号:US07186778B2

    公开(公告)日:2007-03-06

    申请号:US09997952

    申请日:2001-11-30

    IPC分类号: C08L51/04

    摘要: Thermoplastic molding compositions containing grafted polymers produced with different initiator systems are disclosed. The compositions are distinguished by a combination of good toughness and reduced opacity. As a result, appreciably smaller quantities of pigment are needed to color the molding composition.

    摘要翻译: 公开了含有用不同引发剂体系生产的接枝聚合物的热塑性模塑组合物。 组合物通过良好的韧性和降低的不透明度的组合来区分。 结果,需要明显较少量的颜料来着色成型组合物。

    ABS moulding material with improved workability and a high lustre
    99.
    发明授权
    ABS moulding material with improved workability and a high lustre 失效
    ABS成型材料具有改善的加工性和高光泽

    公开(公告)号:US07074854B2

    公开(公告)日:2006-07-11

    申请号:US10204137

    申请日:2001-02-12

    IPC分类号: C08L51/04

    摘要: A Polymer compositions that features high degree of toughness, very good processability and extremely high gloss is disclosed. The composition contains (I) a graft rubber polymer obtained by emulsion polymerization of styrene and acrylonitrile in the presence of a mixture of (A) a butadiene polymer latex having a mean particle diameter d50≦250 nm, a particle size distribution width of 20 to 80 nm and a gel content of 30 to 95 wt. %, (B) a butadiene polymer latex with a mean particle diameter d50>250 to 350 nm, a particle size distribution width of 30 to 100 nm and gel content of 30 to 80 wt. %, and (C) a butadiene polymer latex (C) with a mean particle diameter d50>350 nm, a particle size distribution width of 40 to 150 nm, and a gel content of 50 to 95 wt. %. and (II) a rubber-free copolymer of styrene and acrylonitrile. At least one of (A), (B) and (C) is a product of seed polymerization.

    摘要翻译: 公开了具有高韧性,非常好的加工性和极高光泽度的聚合物组合物。 该组合物含有(I)通过苯乙烯和丙烯腈的乳液聚合得到的接枝橡胶聚合物,该混合物是(A)平均粒径d <50%= 250nm的丁二烯聚合物胶乳 ,粒径分布宽度为20〜80nm,凝胶含量为30〜95wt。 %,(B)平均粒径d <50> 250〜350nm,粒径分布宽度为30〜100nm,凝胶含量为30〜80重量%的丁二烯聚合物胶乳。 %,和(C)平均粒径d <50 <350纳米,粒度分布宽度为40〜150nm,凝胶含量为50〜95的丁二烯聚合物胶乳(C) 重量 %。 和(II)苯乙烯和丙烯腈的无橡胶共聚物。 (A),(B)和(C)中的至少一种是种子聚合的产物。

    ABS compositions with improved property combinations
    100.
    发明授权
    ABS compositions with improved property combinations 失效
    具有改进的性能组合的ABS组合物

    公开(公告)号:US06951903B2

    公开(公告)日:2005-10-04

    申请号:US10242992

    申请日:2002-09-13

    摘要: A thermoplastic molding composition that features a combination of extremely good toughness, good processability, adjustable surface gloss, good inherent color and reduced opacity is disclosed. The composition contains A) a graft rubber that is the product of free-radical emulsion polymerization using a peroxodisulfate initiator, B) a graft rubber that is the product of free-radical emulsion polymerization using an azo compound initiator and C) a graft polymer that is the product of solution, bulk or suspension polymerization.

    摘要翻译: 公开了一种热塑性模塑组合物,其具有极好的韧性,良好的加工性,可调节的表面光泽度,良好的固有颜色和降低的不透明度的组合。 该组合物包含A)作为使用过二硫酸酯引发剂的自由基乳液聚合的产物的接枝橡胶,B)作为使用偶氮化合物引发剂的自由基乳液聚合的产物的接枝橡胶,和C)接枝聚合物, 是溶液,本体或悬浮聚合的产物。