Elastic-thermoplastic graft polymers with improved properties
    1.
    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:US5723540A

    公开(公告)日:1998-03-03

    申请号:US834755

    申请日:1997-04-03

    摘要: Elastic-thermoplastic graft polymers manufactured by radical emulsion polymerization 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 atoms and 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而制备的,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。

    Elastic-thermoplastic graft polymers with improved properties
    2.
    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。

    ABS type thermoplastic moulding compounds
    5.
    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。

    Polymer compositions with an improved constancy of characteristics
    10.
    发明授权
    Polymer compositions with an improved constancy of characteristics 有权
    具有改善的特性恒定性的聚合物组合物

    公开(公告)号:US06767964B2

    公开(公告)日:2004-07-27

    申请号:US10204147

    申请日:2002-08-16

    IPC分类号: C08G6348

    摘要: A thermoplastic molding composition that features constancy of properties, especially toughness and processability is disclosed. The composition contains a first graft rubber polymer that is a product of emulsion polymerisation of styrene and acrylonitrile in the presence of a butadiene polymer latex (A) with a mean particle diameter d50 of 80 to 220 nm, a second graft rubber polymer obtained by emulsion polymerisation of styrene and acrylonitrile in the presence of a butadiene polymer latex (B) with a mean particle diameter d50 of 340 to 480 nm, and a rubber-free copolymer of styrene and acrylonitrile. Importantly, the butadiene polymer latex (A) is the product of seed polymerization using a seed latex with a mean particle diameter of 10 to 100 nm, and the butadiene polymer latex (B) is the product of seed polymerisation using the butadiene polymer latex (A) as seed latex.