Stabilized polyester-polycarbonate compositions
    3.
    发明授权
    Stabilized polyester-polycarbonate compositions 失效
    稳定的聚酯 - 聚碳酸酯组合物

    公开(公告)号:US5502119A

    公开(公告)日:1996-03-26

    申请号:US396353

    申请日:1995-02-28

    摘要: A polyester-polycarbonate composition comprising (A) at least one polyester prepared by the reaction of at least one alkanediol with at least one dicarboxylic acid or dialkyl ester thereof in the presence of a metallic catalyst, (B) at least one polycarbonate, (C) at least one organosilicate, the organosilicate being present in an amount effective to inhibit ester-carbonate interchange in the composition, optionally, (D) an organic or inorganic colorant, (E) an impact modifier, and (F) a stabilizer. A method for stabilizing polyester-polycarbonate compositions against ester-carbonate interchange is also provided.

    摘要翻译: 一种聚酯 - 聚碳酸酯组合物,其包含(A)至少一种通过至少一种链烷二醇与至少一种二羧酸或其二烷基酯在金属催化剂存在下反应制备的聚酯,(B)至少一种聚碳酸酯(C )至少一种有机硅酸盐,有机硅酸盐以有效抑制组合物中碳酸酯 - 碳酸酯交换的量存在,任选地(D)有机或无机着色剂,(E)抗冲改性剂和(F)稳定剂。 还提供了一种用于稳定聚酯 - 聚碳酸酯组合物以抵抗酯 - 碳酸盐交换的方法。

    Flame retardant aromatic polyester molding compositions having reduced
dripping tendencies upon burning
    4.
    发明授权
    Flame retardant aromatic polyester molding compositions having reduced dripping tendencies upon burning 失效
    阻燃芳族聚酯模塑组合物在燃烧时具有降低的滴落倾向

    公开(公告)号:US5034474A

    公开(公告)日:1991-07-23

    申请号:US448448

    申请日:1989-12-11

    IPC分类号: C08L67/02

    CPC分类号: C08L67/02

    摘要: Aromatic polyesters, such as polybutylene-terephthalate, have been found to have a reduced tendency to drip during burning, if an effective amount of a polyhydroorganosiloxane is incorporated into the polyester. A further enhancement in the non-drip behavior is achieved by the addition of an effective amount of a transition metal oxide, such as a platinum oxide, or by the modification of the polyhydroorganosiloxane with an aliphatic alcohol such as benzyl alcohol in the presence of a catalytic amount of an alkali metal alkoxide.

    摘要翻译: 已经发现,如果在聚酯中引入有效量的多羟基有机硅氧烷,芳族聚酯如聚对苯二甲酸丁二醇酯在燃烧过程中滴落倾向降低。 通过添加有效量的过渡金属氧化物(例如氧化铂)或通过在脂肪醇如苄醇的存在下通过改性聚有机硅氧烷来实现非滴落行为的进一步增强 催化量的碱金属醇盐。

    Polyalkylene Terephthalate compositions having improved burning
characteristics
    5.
    发明授权
    Polyalkylene Terephthalate compositions having improved burning characteristics 失效
    具有改进的燃烧特性的聚对苯二甲酸亚烷基酯组合物

    公开(公告)号:US5081176A

    公开(公告)日:1992-01-14

    申请号:US586926

    申请日:1990-09-24

    IPC分类号: C08K3/22 C08L67/02

    CPC分类号: C08K3/22 C08L67/02

    摘要: Aromatic thermoplastic compositions are provided having reduced total smoke released upon burning in accordance with ASTM-EO96. The aromatic thermplastic compositions utilize an effective amount of tin monoxide, and which are substantially free of antimony trioxide and brominated organic flame retardant resins. Minor amounts of polytetrafluoroethylene resin and glass fiber also contribute to the reduction of total smoke release upon burning of the thermoplastic polyester.

    摘要翻译: 提供了芳香族热塑性组合物,其具有根据ASTM-EO96在燃烧时释放的总烟减少。 芳族热塑性组合物使用有效量的一氧化二氮,其基本上不含三氧化锑和溴化有机阻燃树脂。 少量的聚四氟乙烯树脂和玻璃纤维也有助于减少热塑性聚酯燃烧时的总烟雾释放。

    Blowing agent concentrate
    8.
    发明授权
    Blowing agent concentrate 失效
    发酵剂浓缩液

    公开(公告)号:US6013686A

    公开(公告)日:2000-01-11

    申请号:US23577

    申请日:1998-02-13

    IPC分类号: C08J9/10 C08S9/00

    摘要: The present invention relates generally to blowing agent concentrates for forming porous, molded thermoplastic items, and, more particularly to blowing agent concentrates that are compatible with polycarbonate homopolymers, but which can be extruded without causing thermal decomposition of the blowing agent.

    摘要翻译: 本发明一般涉及用于形成多孔,模制的热塑性物品的发泡剂浓缩物,更具体地涉及与聚碳酸酯均聚物相容的发泡剂浓缩物,但是可以挤出而不引起发泡剂的热分解。

    Melt process for the synthesis of tin(II) terephthalate
    9.
    发明授权
    Melt process for the synthesis of tin(II) terephthalate 失效
    用于合成锡(Ⅱ)对苯二甲酸酯的熔体工艺

    公开(公告)号:US5446112A

    公开(公告)日:1995-08-29

    申请号:US125099

    申请日:1993-09-22

    IPC分类号: C08G63/68 C08G79/12 C08G79/00

    CPC分类号: C08G79/12

    摘要: A melt process for the synthesis of poly(metal aromatic esters) resins is provided. The process provides volatile byproducts which can be easily separated from the desired poly(metal aromatic ester) resin product. The poly(metal aromatic ester) resins are particularly useful as polymer additives for the purpose of such things as scavenging traces of water, activating sulphur accelerator crosslinking systems, and producing intumescent and polyester/metal oxide formulations.

    摘要翻译: 提供了用于合成聚(金属芳族酯)树脂的熔融方法。 该方法提供挥发性副产物,其可以容易地与期望的聚(金属芳族酯)树脂产物分离。 聚(金属芳族酯)树脂特别可用作聚合物添加剂,用于清除水痕迹,活化硫促进剂交联体系,以及生产膨胀型和聚酯/金属氧化物制剂。