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    • 4. 发明申请
    • Method of preparing polycarbonate resin
    • 聚碳酸酯树脂的制备方法
    • US20060089484A1
    • 2006-04-27
    • US11255515
    • 2005-10-21
    • Mijeung HongJong Hun KimSung Kyou ParkBoo Gon Woo
    • Mijeung HongJong Hun KimSung Kyou ParkBoo Gon Woo
    • C08G64/00
    • C08G64/307C08G64/186C08G64/205
    • A method of preparing a high molecular weight polycarbonate resin is provided. In the method, a condensation polymerization process is used so that a mole fraction of arylcarbonate existing in a terminated group of a reaction side product having a degree of polymerization of less than 3 obtained as a result of transesterification and in a non-reacted diarylcarbonate is reduced. As a result, a high molecular weight polycarbonate can be obtained by solid state polymerization. A polycarbonate with an identical molecular weight can be produced in a substantially short time, compared with a polycarbonate produced through solid state polymerization without condensation polymerization. In addition, the non-use of a poisonous phosgene contributes to stability. Furthermore, quality polycarbonate may be guaranteed.
    • 提供了制备高分子量聚碳酸酯树脂的方法。 在该方法中,使用缩聚方法,使得存在于作为酯交换反应的结果得到的聚合度小于3的反应副产物的末端基团中的芳基碳酸酯的摩尔分数和未反应的碳酸二芳基酯的摩尔分数为 减少 结果,可以通过固态聚合获得高分子量聚碳酸酯。 与通过不进行缩聚的固相聚合制造的聚碳酸酯相比,可以在短时间内生产具有相同分子量的聚碳酸酯。 此外,不使用有毒光气有助于稳定。 此外,可以保证质量的聚碳酸酯。
    • 6. 发明授权
    • Method of preparing polycarbonate resin
    • 聚碳酸酯树脂的制备方法
    • US07332559B2
    • 2008-02-19
    • US11255515
    • 2005-10-21
    • Mijeung HongJong Hun KimSung Kyou ParkBoo Gon Woo
    • Mijeung HongJong Hun KimSung Kyou ParkBoo Gon Woo
    • C08G64/00
    • C08G64/307C08G64/186C08G64/205
    • A method of preparing a high molecular weight polycarbonate resin is provided. In the method, a condensation polymerization process is used so that a mole fraction of arylcarbonate existing in a terminated group of a reaction side product having a degree of polymerization of less than 3 obtained as a result of transesterification and in a non-reacted diarylcarbonate is reduced. As a result, a high molecular weight polycarbonate can be obtained by solid state polymerization. A polycarbonate with an identical molecular weight can be produced in a substantially short time, compared with a polycarbonate produced through solid state polymerization without condensation polymerization. In addition, the non-use of a poisonous phosgene contributes to stability. Furthermore, quality polycarbonate may be guaranteed.
    • 提供了制备高分子量聚碳酸酯树脂的方法。 在该方法中,使用缩聚方法,使得存在于作为酯交换反应的结果得到的聚合度小于3的反应副产物的末端基团中的芳基碳酸酯的摩尔分数和未反应的碳酸二芳基酯的摩尔分数为 减少 结果,可以通过固态聚合获得高分子量聚碳酸酯。 与通过不进行缩聚的固相聚合制造的聚碳酸酯相比,可以在短时间内生产具有相同分子量的聚碳酸酯。 此外,不使用有毒光气有助于稳定。 此外,可以保证质量的聚碳酸酯。