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: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
    3.
    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 molding materials based on special graft rubber components
    4.
    发明授权
    Thermoplastic molding materials based on special graft rubber components 失效
    基于特殊接枝橡胶成分的热塑性成型材料

    公开(公告)号:US06828380B2

    公开(公告)日:2004-12-07

    申请号:US10220707

    申请日:2002-11-21

    IPC分类号: C08L5502

    摘要: A molding composition having good surface gloss, high elongation at break and good thermoplastic processability is disclosed. The composition contains (A) a graft polymer that is obtained by free-radical polymerization of resin-forming vinyl monomers in the presence of rubber in latex form, (B) a copolymer of styrene and acrylonitrile and an optional (C) a resin selected from the group consisting of polycarbonates, polyester-carbonates, polyesters and polyamides. The preparation of the graft polymer is characterized in that (i) before the start of the grafting polymerization reaction the rubber latex is brought to a pH of 9 to 11, (ii) the redox initiator components are employed in amounts of 0.1 to 2.5 wt. % (based on the monomers metered in) and (iii) during the entire grafting polymerization reaction the pH remains constant±0.5 and in the range of 11.0 to 8.8, and (iv) the temperature difference between the start and end of the reaction is at least 10° C.

    摘要翻译: 公开了具有良好的表面光泽度,高断裂伸长率和良好的热塑性加工性能的成型组合物。 该组合物含有(A)通过在胶乳形式的橡胶存在下形成树脂的乙烯基单体的自由基聚合获得的接枝聚合物,(B)苯乙烯和丙烯腈的共聚物和任选的(C)树脂选择 由聚碳酸酯,聚酯 - 碳酸酯,聚酯和聚酰胺组成。 接枝聚合物的制备的特征在于:(i)在接枝聚合反应开始之前,使橡胶胶乳的pH值达到9至11,(ii)氧化还原引发剂组分的用量为0.1至2.5重量% 。 %(基于计量的单体)和(iii)在整个接枝聚合反应期间,pH保持恒定±0.5且在11.0至8.8的范围内,和(iv)反应开始和结束之间的温度差为 至少10℃

    Thermoplastic molding materials based on particular graft rubber constituents
    7.
    发明授权
    Thermoplastic molding materials based on particular graft rubber constituents 失效
    基于特定接枝橡胶成分的热塑性成型材料

    公开(公告)号:US06716916B1

    公开(公告)日:2004-04-06

    申请号:US10069862

    申请日:2002-04-15

    IPC分类号: C08F27900

    摘要: A molding composition containing a graft polymer is disclosed. The graft is a product of a free-radical emulsion polymerization of resin-forming vinyl monomers in the presence of rubber present in latex form having a glass transition temperature of ≦0° C. using an initiator combination comprising a persulfate compound and a redox initiator system. The process for preparing the graft polymer entails adding the persulfate compound at the beginning of the graft polymerization reaction and a later addition of the redox initiator. The composition that features good gloss and flowability is suitable for the preparation of molded articles.

    摘要翻译: 公开了含有接枝聚合物的模塑组合物。 接枝物是在玻璃化转变温度为<= 0℃的胶乳形式的橡胶存在下,使用包含过硫酸盐化合物和氧化还原反应的引发剂组合的树脂形成乙烯基单体的自由基乳液聚合的产物 启动器系统。 制备接枝聚合物的方法需要在接枝聚合反应开始时加入过硫酸盐化合物,并且随后加入氧化还原引发剂。 具有良好光泽度和流动性的组合物适用于制备模制品。

    Polycarbonate/graft polymer moulding compositions with reduced deposit
formation
    10.
    发明授权
    Polycarbonate/graft polymer moulding compositions with reduced deposit formation 失效
    具有降低沉积物形成的聚碳酸酯/接枝聚合物模塑组合物

    公开(公告)号:US5994463A

    公开(公告)日:1999-11-30

    申请号:US047598

    申请日:1998-03-25

    摘要: Thermoplastic polycarbonate/graft polymer moulding compositions containingA) 5 to 95 parts by weight of an aromatic polycarbonate,B) 1 to 50 parts by weight of at least one thermoplastic homopolymer, copolymer or terpolymer of styrene, .alpha.-methylstyrene, acrylonitrile, N-substituted maleimide or mixtures thereof,C) 1 to 50 parts by weight of at least one graft polymer ofC.1) 5 to 90 parts by weight of styrene, .alpha.-methylstyrene, acrylonitrile, N-substituted maleimide or mixtures thereof, onC.2) 95 to 10 parts by weight of a rubber with a glass transition temperature .ltoreq.0.degree. C. andD) 1 to 25 parts by weight (per 100 parts by weight A+B+C) of at least one additive selected from flame retardants, lubricants, antistatic agent, mould release agents or mixtures thereof,characterised in that the component B) is produced by bulk, solution or suspension polymerisation and has an oligomer content .ltoreq.1 wt. %, component C) is produced by emulsion polymerisation and the total oligomer content of the moulding compositions is .ltoreq.0.6 wt. %.

    摘要翻译: 含有A)5-95重量份的芳族聚碳酸酯的热塑性聚碳酸酯/接枝聚合物模塑组合物,B)1至50重量份的至少一种苯乙烯,α-甲基苯乙烯,丙烯腈,N-甲基苯乙烯的共聚物或三元共聚物, 取代的马来酰亚胺或其混合物,C)1至50重量份的至少一种C.1的接枝聚合物)C至5重量份的苯乙烯,α-甲基苯乙烯,丙烯腈,N-取代的马来酰亚胺或其混合物,在C .2)95至10重量份的玻璃化转变温度为0℃的橡胶和D)1至25重量份(每100重量份A + B + C)至少一种添加剂 选自阻燃剂,润滑剂,抗静电剂,脱模剂或其混合物,其特征在于组分B)通过本体,溶液或悬浮液聚合制备,并且具有低聚物含量为1重量%。 %,组分C)通过乳液聚合制备,并且模塑组合物的总低聚物含量为0.6重量%。 %。