Mold releasel agents for poly(ester) carbonates
    3.
    发明授权
    Mold releasel agents for poly(ester) carbonates 失效
    用于聚(酯)碳酸酯的脱模剂

    公开(公告)号:US5036151A

    公开(公告)日:1991-07-30

    申请号:US493269

    申请日:1990-03-14

    CPC分类号: B29C33/62 C07D251/34

    摘要: The invention relates to trimerized aliphatic isocyanates produced by special processes, to their use as mold release agents in thermoplastic aromatic polycarbonates and/or thermoplastic aromatic polyestercarbonates and/or thermoplastic aromatic polyesters, optionally using standard additives, to the readily demoldable molding compounds thus obtained on the basis of the thermoplastic polycarbonates, polyestercarbonates and/or polyesters and to processes for the production of these readily demoldable molding compounds.

    摘要翻译: 本发明涉及通过特殊方法生产的三聚脂肪族异氰酸酯,其在热塑性芳族聚碳酸酯和/或热塑性芳族聚酯碳酸酯和/或热塑性芳族聚酯中的脱模剂(任选使用标准添加剂)用于如此获得的容易脱模的模塑料 热塑性聚碳酸酯,聚酯碳酸酯和/或聚酯的基础,以及用于生产这些易脱模的模塑料的方法。

    Polycarbonate foam articles
    8.
    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

    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。