Solid state polymerization process for polyester with phosphinic acid compounds
    3.
    发明授权
    Solid state polymerization process for polyester with phosphinic acid compounds 失效
    具有次膦酸化合物的聚酯的固态聚合方法

    公开(公告)号:US08258253B2

    公开(公告)日:2012-09-04

    申请号:US13214751

    申请日:2011-08-22

    IPC分类号: C08G63/02 C08G64/00

    CPC分类号: C08G63/80 C08G63/85 C08G63/87

    摘要: Disclosed is a method for increasing the solid state polymerization (SSP) rates of metal catalyzed polyesters. The method comprises in a first step, reacting a dicarboxylic acid or a C1-C4 dicarboxylic diester with a diol at a suitable temperature and pressure to effect esterification or transesterification to prepare a precondensate and in a second step, reacting the precondensate to effect polycondensation at a suitable temperature and pressure to prepare a high molecular weight polyester and in a third step, further increasing the molecular weight and viscosity of the polyester under SSP conditions of a suitable temperature and pressure, where a metal catalyst is added in the first step or in the second step as a reaction catalyst, and where a certain phosphinic acid compound is added in the first step, in the second step or just prior to the third step. The polyester product exhibits low aldehyde formation during melt processing steps as well as excellent color.

    摘要翻译: 公开了一种提高金属催化聚酯的固态聚合(SSP)速率的方法。 该方法包括在第一步骤中,在合适的温度和压力下使二羧酸或C 1 -C 4二羧酸二酯与二醇反应以实现酯化或酯交换以制备预缩合物,并且在第二步中,使预缩合物与 合适的温度和压力以制备高分子量聚酯,并且在第三步骤中,在合适的温度和压力的SSP条件下进一步提高聚酯的分子量和粘度,其中在第一步中加入金属催化剂或在 作为反应催化剂的第二步骤,其中在第一步骤,第二步骤或第三步骤之前加入某些次膦酸化合物。 聚酯产品在熔融加工步骤中表现出低醛形成以及优异的颜色。

    Solid State Polymerization Process for Polyester with Phosphinic Acid Compounds
    4.
    发明申请
    Solid State Polymerization Process for Polyester with Phosphinic Acid Compounds 失效
    聚酯与膦酸化合物的固态聚合方法

    公开(公告)号:US20110306710A1

    公开(公告)日:2011-12-15

    申请号:US13214751

    申请日:2011-08-22

    CPC分类号: C08G63/80 C08G63/85 C08G63/87

    摘要: Disclosed is a method for increasing the solid state polymerization (SSP) rates of metal catalyzed polyesters. The method comprises in a first step, reacting a dicarboxylic acid or a C1-C4 dicarboxylic diester with a diol at a suitable temperature and pressure to effect esterification or transesterification to prepare a precondensate and in a second step, reacting the precondensate to effect polycondensation at a suitable temperature and pressure to prepare a high molecular weight polyester and in a third step, further increasing the molecular weight and viscosity of the polyester under SSP conditions of a suitable temperature and pressure, where a metal catalyst is added in the first step or in the second step as a reaction catalyst, and where a certain phosphinic acid compound is added in the first step, in the second step or just prior to the third step. The polyester product exhibits low aldehyde formation during melt processing steps as well as excellent color.

    摘要翻译: 公开了一种提高金属催化聚酯的固态聚合(SSP)速率的方法。 该方法包括在第一步骤中,在合适的温度和压力下使二羧酸或C 1 -C 4二羧酸二酯与二醇反应以进行酯化或酯交换以制备预缩合物,并且在第二步中,使预缩合物与 合适的温度和压力以制备高分子量聚酯,并且在第三步骤中,在合适的温度和压力的SSP条件下进一步提高聚酯的分子量和粘度,其中在第一步中加入金属催化剂或在 作为反应催化剂的第二步骤,其中在第一步骤,第二步骤或第三步骤之前加入某些次膦酸化合物。 聚酯产品在熔融加工步骤中表现出低醛形成以及优异的颜色。

    Solid state polymerization process for polyester with phosphinic acid compounds
    5.
    发明授权
    Solid state polymerization process for polyester with phosphinic acid compounds 失效
    具有次膦酸化合物的聚酯的固态聚合方法

    公开(公告)号:US08030435B2

    公开(公告)日:2011-10-04

    申请号:US12384029

    申请日:2009-03-31

    IPC分类号: C08G63/68 C08G79/02

    CPC分类号: C08G63/80 C08G63/85 C08G63/87

    摘要: Disclosed is a method for increasing the solid state polymerization (SSP) rates of metal catalyzed polyesters. The method comprises in a first step, reacting a dicarboxylic acid or a C1-C4 dicarboxylic diester with a diol at a suitable temperature and pressure to effect esterification or transesterification to prepare a precondensate and in a second step, reacting the precondensate to effect polycondensation at a suitable temperature and pressure to prepare a high molecular weight polyester and in a third step, further increasing the molecular weight and viscosity of the polyester under SSP conditions of a suitable temperature and pressure, where a metal catalyst is added in the first step or in the second step as a reaction catalyst, and where a certain phosphinic acid compound is added in the first step, in the second step or just prior to the third step. The polyester product exhibits low aldehyde formation during melt processing steps as well as excellent color.

    摘要翻译: 公开了一种提高金属催化聚酯的固态聚合(SSP)速率的方法。 该方法包括在第一步骤中,在合适的温度和压力下使二羧酸或C 1 -C 4二羧酸二酯与二醇反应以进行酯化或酯交换以制备预缩合物,并且在第二步中,使预缩合物与 合适的温度和压力以制备高分子量聚酯,并且在第三步骤中,在合适的温度和压力的SSP条件下进一步提高聚酯的分子量和粘度,其中在第一步中加入金属催化剂或在 作为反应催化剂的第二步骤,其中在第一步骤,第二步骤或第三步骤之前加入某些次膦酸化合物。 聚酯产品在熔融加工步骤中表现出低醛形成以及优异的颜色。

    Solid state polymerization process for polyester with phosphinic acid compounds
    6.
    发明申请
    Solid state polymerization process for polyester with phosphinic acid compounds 失效
    具有次膦酸化合物的聚酯的固态聚合方法

    公开(公告)号:US20090253888A1

    公开(公告)日:2009-10-08

    申请号:US12384029

    申请日:2009-03-31

    IPC分类号: C08G63/16

    CPC分类号: C08G63/80 C08G63/85 C08G63/87

    摘要: Disclosed is a method for increasing the solid state polymerization (SSP) rates of metal catalyzed polyesters. The method comprises in a first step, reacting a dicarboxylic acid or a C1-C4 dicarboxylic diester with a diol at a suitable temperature and pressure to effect esterification or transesterification to prepare a precondensate and in a second step, reacting the precondensate to effect polycondensation at a suitable temperature and pressure to prepare a high molecular weight polyester and in a third step, further increasing the molecular weight and viscosity of the polyester under SSP conditions of a suitable temperature and pressure, where a metal catalyst is added in the first step or in the second step as a reaction catalyst, and where a certain phosphinic acid compound is added in the first step, in the second step or just prior to the third step. The polyester product exhibits low aldehyde formation during melt processing steps as well as excellent color.

    摘要翻译: 公开了一种提高金属催化聚酯的固态聚合(SSP)速率的方法。 该方法包括在第一步骤中,在合适的温度和压力下使二羧酸或C 1 -C 4二羧酸二酯与二醇反应以进行酯化或酯交换以制备预缩合物,并且在第二步中,使预缩合物与缩合反应进行反应 合适的温度和压力以制备高分子量聚酯,并且在第三步骤中,在合适的温度和压力的SSP条件下进一步提高聚酯的分子量和粘度,其中在第一步中加入金属催化剂或在 作为反应催化剂的第二步骤,其中在第一步骤,第二步骤或第三步骤之前加入某些次膦酸化合物。 聚酯产品在熔融加工步骤中表现出低醛形成以及优异的颜色。