公开(公告)号：US20030214070A1

公开(公告)日：2003-11-20

申请号：US10063687

申请日：2002-05-08

Applicant: General Electric Company

Inventor： Johannes Martinus Dina Goossens ,  Jan Henk Kamps ,  Lina Prada ,  Augustina Martina Tacke-Willemsen ,  Hendrik Verhoogt ,  Hendricus Franciscus Zirkzee

IPC: B29C047/00 ,  D01F008/00 ,  C08G064/00 ,  B32B027/36 ,  B29C063/00 ,  B32B001/00 ,  B28B003/20 ,  B32B031/00

CPC classification number: C08J5/18 ,  B29C48/08 ,  B29C48/11 ,  B29C48/21 ,  B29C48/69 ,  B29C48/693 ,  B29L2024/006 ,  C08G64/307 ,  C08J2369/00 ,  Y10T428/31507

Abstract: A method for producing a thermoplastic sheet includes extruding a composition including a melt polycarbonate resin having a Fries content of about 10 ppm to about 2000 ppm. The composition enables the sheet to be extruded with excellent uniformity.

Abstract translation: 制造热塑性片材的方法包括挤出含有Fries含量为约10ppm至约2000ppm的熔融聚碳酸酯树脂的组合物。 该组合物使片材能够以均匀的均匀性被挤出。

公开(公告)号：US20030088051A1

公开(公告)日：2003-05-08

申请号：US10063282

申请日：2002-04-08

Applicant: General Electric Company

Inventor： Tomoaki Shimoda ,  Akio Ikeda ,  Takato Kimura ,  Ken Tamada ,  Hans-Peter Brack ,  Dennis Karlik ,  Lina Prada ,  Hendricus Franciscus Zirkzee ,  James Anthony Cella

IPC: C08G064/00

CPC classification number: C08G64/14 ,  C08G64/205 ,  C08G64/307 ,  C08G64/42

Abstract: A process for preparing an end-capped polycarbonate comprises melt reacting an aromatic dihydroxy compound, a carbonic acid diester, and optionally a catalyst in a prepolymerization vessel to form a polycarbonate product; transferring the polycarbonate product from the prepolymerization vessel; mixing the polycarbonate product with an end-capping agent under hermetic seal at a pressure of at least about 760 mm Hg; and transferring the polycarbonate product and end-capping agent mixture to a postpolymerization vessel to endcap the polycarbonate product. An apparatus for preparing an end-capped polycarbonate comprises a prepolymerization vessel having and inlet and an outlet; a postpolymerization vessel having an inlet and an outlet; a mixer in fluid communication with the outlet of the prepolymerization vessel and the inlet of the postpolymerization vessel; and a charging port through which an end-capping agent is charged to the mixer, wherein the mixer is hermetically sealed at greater than or equal to 760 mm Hg.

Abstract translation: 制备端封聚碳酸酯的方法包括在预聚合容器中使芳族二羟基化合物，碳酸二酯和任选的催化剂熔融反应以形成聚碳酸酯产物; 从预聚合容器转移聚碳酸酯产物; 在至少约760mm Hg的压力下，在密封下将聚碳酸酯产物与封端剂混合; 并将聚碳酸酯产品和封端剂混合物转移到后聚合容器中以端盖聚碳酸酯产品。 用于制备端盖聚碳酸酯的设备包括具有入口和出口的预聚合容器; 具有入口和出口的后聚合容器; 与预聚合容器的出口和后聚合容器的入口流体连通的混合器; 和一个充气口，通过该充气口将封端剂装入混合器中，其中混合器以大于或等于760mm Hg气密密封。

公开(公告)号：US20020128425A1

公开(公告)日：2002-09-12

申请号：US10027138

申请日：2001-12-26

Applicant: General Electric Company

Inventor： Hans Peter Brack ,  James Anthony Cella ,  Dennis Karlik ,  Lina Prada ,  Theodorus Lambertus Hoeks

IPC: C08G064/00

CPC classification number: C08G64/14 ,  C08G64/307

Abstract: A process for the production of polycarbonate having increased end-cap levels and controlled molecular weight build-up, the process comprising adding a terminal blocking agent of the formula: 1 wherein R1 is a methoxy, ethoxy, propoxy, butoxy, phenyl, phenoxy, benzyl or benzoxy; and R2 is a C1-C30 alkyl group, C1-C30 alkoxy group, C6-C30 aryl group, C6-C30 aryloxy group, C7-C30 aralkyl, or C6-C30 arylalkyloxy group.

Abstract translation: 一种制备具有增加的端帽含量和受控的分子量增加的聚碳酸酯的方法，该方法包括加入下式的封端剂：其中R1是甲氧基，乙氧基，丙氧基，丁氧基，苯基，苯氧基，苄基 或苯氧基; 并且R 2为C 1 -C 30烷基，C 1 -C 30烷氧基，C 6 -C 30芳基，C 6 -C 30芳氧基，C 7 -C 30芳烷基或C 6 -C 30芳烷氧基。