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6 条记录 (耗时 0.014 秒)

    Thermoplastic moulding compound
    1.
    发明授权
    Thermoplastic moulding compound 失效
    热塑性模塑料

    公开(公告)号：US4661545A

    公开(公告)日：1987-04-28

    申请号：US793344

    申请日：1985-10-31

    申请人： Wilhelmus G. M. Bruls ,  Eize Roerdink

    发明人： Wilhelmus G. M. Bruls ,  Eize Roerdink

    IPC分类号： C08L25/00 ,  C08K3/00 ,  C08K3/32 ,  C08K5/49 ,  C08K5/52 ,  C08K5/524 ,  C08L25/04 ,  C08L25/08 ,  C08L33/00 ,  C08L33/02 ,  C08L35/00 ,  C08L35/06 ,  C08K5/51

    CPC分类号： C08K3/32 ,  C08K5/524

    摘要： The invention relates to a thermoplastic moulding compound consisting of:A. at least 95% (wt) of a copolymer consisting of1. 50-95 moles % styrene and/or .alpha.-methylstyrene2. 50-55 moles % unsaturated dicarboxylic anhydrideB. at most 5% (wt) of an phosphite with the general formula of ##STR1## where R represents hydrogen or the residue of an alkyl, cycloalkyl, aryl, alkaryl or aralkyl, while the R substituents need not to be the same and may contain heteroatoms.It has been found that additions of these phosphites to SMA-containing moulding compounds checks the decomposition of SMA, prevents the moulding compound from getting stuck to the processing equipment and consequently reduces corrosion to a high degree.

    摘要翻译： 本发明涉及一种热塑性模塑料，它由以下组成：A.至少95％（wt）由1.50-95摩尔％苯乙烯和/或α-甲基苯乙烯组成的共聚物。50-55摩尔％不饱和二羧酸酐B 至多5％（重量）的通式为的亚磷酸酯，其中R表示氢或烷基，环烷基，芳基，烷芳基或芳烷基的残基，而R取代基不必相同，并且可以 含有杂原子。 已经发现，这些亚磷酸酯添加到含SMA的模塑料中检查SMA的分解，防止模塑料粘附到加工设备上，从而高度降低腐蚀。

    Process for the preparation of nylon 4,6
    2.
    发明授权
    Process for the preparation of nylon 4,6 失效
    制备尼龙4,6的方法

    公开(公告)号：US4722997A

    公开(公告)日：1988-02-02

    申请号：US889385

    申请日：1986-07-25

    申请人： Eize Roerdink ,  Jean M. M. Warnier

    发明人： Eize Roerdink ,  Jean M. M. Warnier

    IPC分类号： C08G69/00 ,  C08G69/28 ,  C08G69/30

    CPC分类号： C08G69/28 ,  C08G69/26

    摘要： A reproducible method for the preparation of high molecular weight white poly(tetramethyleneadipamide) nylon 4,6 using moderate temperatures and relatively short reaction times is disclosed. In the method, the prepolymerization step is limited under controlled reaction conditions so that a prepolymer is formed with a very low degree of polymerization, whereby a shorter, commercially viable, after-condensation time is achieved to obtain a high molecular weight final poly-condensation polymer product.

    摘要翻译： 公开了一种用中等温度和较短反应时间制备高分子量白色聚（四亚甲基己二酰胺）尼龙4,6的可重复方法。 在该方法中，预聚合步骤在受控的反应条件下受到限制，从而形成具有非常低聚合度的预聚物，由此获得更短的商业上可行的缩合后时间，以获得高分子量的最终聚缩合 聚合物产品。

    4.6/4.I copolyamide and a process for the preparation thereof
    6.
    发明授权
    4.6/4.I copolyamide and a process for the preparation thereof 失效
    4.6 / 4.I共聚酰胺及其制备方法

    公开(公告)号：US4849498A

    公开(公告)日：1989-07-18

    申请号：US111064

    申请日：1987-10-22

    申请人： Eize Roerdink ,  Jean M. M. Warnier

    发明人： Eize Roerdink ,  Jean M. M. Warnier

    IPC分类号： C08G69/26

    CPC分类号： C08G69/265

    摘要： The invention relates to a copolyamide for application in films with improved barrier properties. The copolyamide containing tetramethyleneadipamide and tetramethylene-isophtalamide in a ratio between 9:1 and 1:9 and a relative viscosity of at least 2.0, and a process for the production of the copolyamide. Preferably the copolyamide contains a small amount of a compound that induces the formation of networks between the polyamide chains.