Process for producing (co)polycarbonate with transesterification
catalyst and compound
    2.
    发明授权
    Process for producing (co)polycarbonate with transesterification catalyst and compound 失效
    用酯交换催化剂和化合物生产(共)聚碳酸酯的方法

    公开(公告)号:US5278279A

    公开(公告)日:1994-01-11

    申请号:US940310

    申请日:1992-08-31

    摘要: A process for producing a (co)polycarbonate or a (co)polyestercarbonate having a high molecular weight and excellent hue, heat stability and mechanical properties by reacting a dihydroxyl compound with a diester of carbonic acid and/or a diester of dicarbonic acid in the presence of a transesterification catalyst, wherein at least part of the reaction process is conducted in the presence of a specified organic phosphorus compound, or, in the presence of a specified organic phosphorus compound and a hindered phenol compound. A (co)polycarbonate or (co)polyester-carbonate composition having excellent hue, heat stability and mechanical properties, comprising a (co)polycarbonate and/or a (co)polyestercarbonate and, a specified organic phosphorus compound, or, a specified organic phosphorus compound and a hindered phenol compound.

    摘要翻译: 通过使二羟基化合物与二羧酸的二酯和/或二碳酸的二酯反应,生成具有高分子量和(色),热稳定性和机械性能的(共)聚碳酸酯或(共)聚酯碳酸酯的方法 存在酯交换催化剂,其中至少部分反应过程在指定的有机磷化合物的存在下进行,或在指定的有机磷化合物和受阻酚化合物的存在下进行。 包含(共)聚碳酸酯和/或(共)聚酯碳酸酯和特定的有机磷化合物或特定有机磷化合物的(共)聚碳酸酯或(共)聚酯 - 碳酸酯组合物,其具有优异的色调,热稳定性和机械性能 磷化合物和受阻酚化合物。

    Process for producing (co)polycarbonate and (co)polycarbonate composition
    3.
    发明授权
    Process for producing (co)polycarbonate and (co)polycarbonate composition 失效
    制备(共)聚碳酸酯和(共)聚碳酸酯组合物的方法

    公开(公告)号:US5387628A

    公开(公告)日:1995-02-07

    申请号:US119368

    申请日:1993-09-09

    摘要: A process for producing a (co)polycarbonate or a (co)polyestercarbonate having a high molecular weight and excellent hue, heat stability and mechanical properties by reacting a dihydroxyl compound with a diester of carbonic acid and/or a diester of dicarbonic acid in the presence of a transesterification catalyst, wherein at least part of the reaction process is conducted in the presence of a specified organic phosphorus compound, or, in the presence of a specified organic phosphorus compound and a hindered phenol compound. A (co)polycarbonate or (co)polyester-carbonate composition having excellent hue, heat stability and mechanical properties, comprising a (co)polycarbonate and/or a (co)polyestercarbonate and, a specified organic phosphorus compound, or, a specified organic phosphorus compound and a hindered phenol compound.

    摘要翻译: 通过使二羟基化合物与二羧酸的二酯和/或二碳酸的二酯反应,生成具有高分子量和(色),热稳定性和机械性能的(共)聚碳酸酯或(共)聚酯碳酸酯的方法 存在酯交换催化剂,其中至少部分反应过程在指定的有机磷化合物的存在下进行,或在指定的有机磷化合物和受阻酚化合物的存在下进行。 包含(共)聚碳酸酯和/或(共)聚酯碳酸酯和特定的有机磷化合物或特定有机磷化合物的(共)聚碳酸酯或(共)聚酯 - 碳酸酯组合物,其具有优异的色调,热稳定性和机械性能 磷化合物和受阻酚化合物。

    Process for the preparation of a polycarbonate with piperidinyl pyridine
catalyst
    4.
    发明授权
    Process for the preparation of a polycarbonate with piperidinyl pyridine catalyst 失效
    用哌啶基吡啶催化剂制备聚碳酸酯的方法

    公开(公告)号:US5168112A

    公开(公告)日:1992-12-01

    申请号:US638975

    申请日:1991-01-08

    IPC分类号: C08G64/30

    CPC分类号: C08G64/307

    摘要: A polycarbonate is produced by melt-polycondensing a dihydric hydroxy compound and a bisarylcarbonate in the presence of 4-(4-methyl-1-piperidinyl)-pyridine, or a salt thereof, as a catalyst. The process of the invention eliminates the use of poisonous phosgene, prevents chloride ions from being incorporated into the product polycarbonate and remains in the reaction system longer to enable the preparation of high-molecular weight polycarbonates.

    摘要翻译: 在4-(4-甲基-1-哌啶基) - 吡啶或其盐作为催化剂的存在下,使二羟基化合物和二芳基碳酸酯熔融缩聚制备聚碳酸酯。 本发明的方法消除了有毒光气的使用,防止氯离子被并入产物聚碳酸酯中并保留在反应体系中较长时间以使得能够制备高分子量聚碳酸酯。

    Process for preparation of polycarbonate
    5.
    发明授权
    Process for preparation of polycarbonate 失效
    聚碳酸酯的制备方法

    公开(公告)号:US5025083A

    公开(公告)日:1991-06-18

    申请号:US475206

    申请日:1990-02-02

    IPC分类号: C08G64/30

    CPC分类号: C08G64/307

    摘要: A polycarbonate is produced by melt-polycondensing (A) a dihydric phenol with a co-monomer selected from the group consisting of (B) bisphenol carbonate, (C) bis(2,4,6-trichlorophenyl) carbonate (D) bis(2,4,-dichlorophenyl) carbonate and (E) bis(2-cyanophenyl) carbonate in the presence of a catalyst selected from among electron-donating amine compounds and salts thereof. The process of the invention saves the use of phosgene which is poisonous and prevents the resulting polycarbonate from incorporation thereinto of chlorine ions.