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    Polycarbonate foams
    1.
    发明授权
    Polycarbonate foams 失效
    聚碳酸酯

    公开(公告)号：US5132331A

    公开(公告)日：1992-07-21

    申请号：US815302

    申请日：1991-12-27

    申请人： Burkhart Kohler ,  Klaus Kircher ,  Ulrich Grigo ,  Klaus Horn ,  Wolfgang Ebert ,  Charles-Earl Lundy

    发明人： Burkhart Kohler ,  Klaus Kircher ,  Ulrich Grigo ,  Klaus Horn ,  Wolfgang Ebert ,  Charles-Earl Lundy

    IPC分类号： C08J9/04 ,  C08J9/12 ,  C08K3/00 ,  C08K3/22 ,  C08L69/00

    CPC分类号： C08J9/125 ,  C08J2369/00

    摘要： A foamable thermoplastic molding composition comprising:a) an aromatic polycarbonate, andb) 0.1 to 5% by weight of a hydrate of an inorganic salt, is disclosed. The salt is inert to the polycarbonate and is capable of releasing its water of hydration only at a temperature above 100.degree. C.The composition which may optionally further contain c) up to 10% by weight of a nucleating agent, and d) up to 30% by weight of glass fibers is characterized by its good pore structure.

    摘要翻译： 一种可发泡热塑性模塑组合物，其包含：a）芳族聚碳酸酯，和b）0.1至5重量％的无机盐水合物。 该盐对聚碳酸酯是惰性的，并且只能在高于100℃的温度下释放其水合水。可任选地进一步含有c）至多10重量％的成核剂的组合物，和d）直到 30％（重量）玻璃纤维的特征在于其孔结构良好。

    Polycarbonate foam articles
    2.
    发明授权
    Polycarbonate foam articles 失效
    聚碳酸酯泡沫文章

    公开(公告)号：US5158985A

    公开(公告)日：1992-10-27

    申请号：US815085

    申请日：1991-12-27

    申请人： Burkhard Kohler ,  Klaus Horn ,  Wolfgang Ebert ,  Klaus Kircher ,  Johann Piontek

    发明人： Burkhard Kohler ,  Klaus Horn ,  Wolfgang Ebert ,  Klaus Kircher ,  Johann Piontek

    IPC分类号： C08G63/64 ,  C08G64/42 ,  C08J9/02 ,  C08J9/08 ,  C08K5/00 ,  C08K5/09 ,  C08K5/10 ,  C08K5/109 ,  C08L69/00

    CPC分类号： C08J9/08 ,  C08G63/64 ,  C08G64/42 ,  C08J9/02 ,  C08J2369/00

    摘要： A process for the production of polycarbonate foam moldings is disclosed. Accordingly, a composition is prepared comprising mixing a thermoplastic polycarbonate resin and 0.01 to 1 mole-% of a transesterification catalyst anda) 0.1 to 5 mole-% of an aromatic polycarboxylic acid, optionally along with about 0.1 to 5 mole-% of at least one member selected from the group consisting of aliphatic hydroxy carboxylic acids and aliphatic polyalcohols, orb) 0.1 to 5 mole-% of H.sub.2 O, optionally along with at about 0.1 to 5 mole-% of at least one member selected from the group consisting of aliphatic hydroxycarboxylic acids and an aliphatic alcohols, orc) the additives of said a) and b), ord) 0.1 to 5 mole-% of at least one member selected from the group consisting of diarylcarbonates and oligocarbonates,said percent based in every case on moles aromatic carbonate structural units ##STR1## in which --O--R--O is a diphenolate residue. The composition obtained is processed to foam moldings by injection molding or by extrusion at temperatures of 210.degree. C. to 340.degree. C.

    摘要翻译： 公开了生产聚碳酸酯泡沫塑料模制品的方法。 因此，制备组合物，其包括将热塑性聚碳酸酯树脂和0.01至1摩尔％的酯交换催化剂混合，和（ii）0.1至5摩尔％的芳族多元羧酸，任选地与约0.1至5摩尔％ 至少一种选自脂肪族羟基羧酸和脂肪族多元醇的成员，或b）0.1〜5摩尔％的H 2 O，任选与约0.1〜5摩尔％的至少一种选自以下的成员： 的脂族羟基羧酸和脂族醇，或c）所述a）和b）的添加剂，或d）0.1至5摩尔％的选自二芳基碳酸酯和寡碳酸酯的至少一种，所述百分比基于 芳香族碳酸酯结构单元“IMAGE”中的每种情况，其中-OR是二酚酸酯残基。 将得到的组合物通过注射成型或在210℃至340℃的温度下挤出加工成泡沫成型体。