公开(公告)号：US20060155098A1

公开(公告)日：2006-07-13

申请号：US11312886

申请日：2005-12-20

Applicant: Hermann Kauth ,  Wolfgang Ebert ,  Wilfried Haese ,  Helmut Einberger ,  Alexander Meyer ,  Andreas Frankenau ,  Uli Franz ,  Christian Eh ,  Stefaan De Vos ,  Bert Ruytinx

Inventor： Hermann Kauth ,  Wolfgang Ebert ,  Wilfried Haese ,  Helmut Einberger ,  Alexander Meyer ,  Andreas Frankenau ,  Uli Franz ,  Christian Eh ,  Stefaan De Vos ,  Bert Ruytinx

IPC: C08G64/00

CPC classification number: C08G64/24 ,  Y10T428/31507

Abstract: An improvement to the phase interface process of preparing aromatic polycarbonate is disclosed. The process is characterized in that the phosgenation is carried out at 0 to 40° C., and in that the temperature of the reaction mixture at the time of addition of the catalyst at 10 to 40° C., and in that the molar ratio of aromatic dihydroxy compounds to phosgene at 1:1.05 to 1:1.20. The polycarbonate thus produced is characterized in its low content of carbamates, making it particularly suitable for the preparation of optical storage media.

Abstract translation: 公开了制备芳族聚碳酸酯的相界面方法的改进。 该方法的特征在于光气化在0至40℃进行，并且在10至40℃下加入催化剂时反应混合物的温度，并且摩尔比 的芳族二羟基化合物与光气的比例为1：1.05至1：1.20。 由此制备的聚碳酸酯的特征在于其低含量的氨基甲酸酯，使其特别适用于制备光学存储介质。

公开(公告)号：US07705107B2

公开(公告)日：2010-04-27

申请号：US11312886

申请日：2005-12-20

Applicant: Hermann Kauth ,  Wolfgang Ebert ,  Wilfried Haese ,  Helmut Einberger ,  Alexander Meyer ,  Andreas Frankenau ,  Uli Franz ,  Christian Eh ,  Stefaan De Vos ,  Bert Ruytinx

Inventor： Hermann Kauth ,  Wolfgang Ebert ,  Wilfried Haese ,  Helmut Einberger ,  Alexander Meyer ,  Andreas Frankenau ,  Uli Franz ,  Christian Eh ,  Stefaan De Vos ,  Bert Ruytinx

IPC: C08G64/00 ,  C08G63/02

CPC classification number: C08G64/24 ,  Y10T428/31507

Abstract: An improvement to the phase interface process of preparing aromatic polycarbonate is disclosed. The process is characterized in that the phosgenation is carried out at 0 to 40° C., and in that the temperature of the reaction mixture at the time of addition of the catalyst at 10 to 40° C., and in that the molar ratio of aromatic dihydroxy compounds to phosgene at 1:1.05 to 1:1.20. The polycarbonate thus produced is characterized in its low content of carbamates, making it particularly suitable for the preparation of optical storage media.

Abstract translation: 公开了制备芳族聚碳酸酯的相界面方法的改进。 该方法的特征在于光气化在0至40℃进行，并且在10至40℃下加入催化剂时反应混合物的温度，并且摩尔比 的芳族二羟基化合物与光气的比例为1：1.05至1：1.20。 由此制备的聚碳酸酯的特征在于其低含量的氨基甲酸酯，使其特别适用于制备光学存储介质。