公开(公告)号：US06562936B1

公开(公告)日：2003-05-13

申请号：US09786523

申请日：2001-06-11

申请人： Kazuki Hatono ,  Masumi Hirata ,  Hiroaki Kaneko ,  Toru Sawaki ,  Wataru Funakoshi ,  Katsushi Sasaki ,  Masasi Simonaru ,  Kouji Kiyoshige

发明人： Kazuki Hatono ,  Masumi Hirata ,  Hiroaki Kaneko ,  Toru Sawaki ,  Wataru Funakoshi ,  Katsushi Sasaki ,  Masasi Simonaru ,  Kouji Kiyoshige

IPC分类号： C08G6400

CPC分类号： B29C47/767 ,  B29C47/0009 ,  B29C47/38 ,  B29C47/402 ,  C08G64/205 ,  C08G64/307

摘要： A method of producing a polycarbonate or the like which is excellent in hydrolysis and heat stability such as a reduction in molecular weight at the time of molding and color retention and moldability such as releasability and transferability, rarely experiences residence deterioration such as coloring, crosslinking and gel formation and has an extremely small content of foreign matter by employing a special structure for an opening in the side surface of a horizontal cylindrical vacuum resin treating apparatus, supplying a molten polycarbonate into a unidirectional rotary intermeshing double-screw extruder under specific conditions, adding a specific agent under specific conditions and cleaning the inner surface of a production apparatus by a specific method.

摘要翻译： 水解和热稳定性优异的聚碳酸酯等的制造方法，例如成型时的分子量的降低和保色性以及脱模性和转印性等成型性，很少发生着色，交联等的停留劣化， 凝胶形成，并且通过采用水平圆筒形真空树脂处理装置的侧表面中的开口的特殊结构，并且在特定条件下将熔融聚碳酸酯供给到单向旋转啮合双螺杆挤出机中，并且具有非常少的异物含量， 在特定条件下的特定试剂，并通过具体方法清洗生产装置的内表面。

公开(公告)号：US06613128B1

公开(公告)日：2003-09-02

申请号：US09509946

申请日：2000-04-04

申请人： Masasi Simonaru ,  Toru Sawaki ,  Katsushi Sasaki ,  Kazuki Hatono ,  Eiji Ito

发明人： Masasi Simonaru ,  Toru Sawaki ,  Katsushi Sasaki ,  Kazuki Hatono ,  Eiji Ito

IPC分类号： B01D1900

CPC分类号： B29C47/605 ,  B29C47/0009 ,  B29C47/0871 ,  B29C47/1063 ,  B29C47/38 ,  B29C47/402 ,  B29C47/404 ,  B29C47/6037 ,  B29C47/762 ,  B29C47/767 ,  B29C67/246 ,  B29K2069/00 ,  B29K2105/0005 ,  Y10S425/243

摘要： An aromatic polycarbonate extruder which is a twin screw extruder for kneading components into a molten aromatic polycarbonate, the extruder having at least one module consisting of a kneading unit, a material seal unit, a back kneading unit and full-flight unit which are arranged from an upstream side to a downstream side and a method of kneading components into an aromatic polycarbonate by using the above extruder. The present invention also provides a kneading apparatus and method for producing an aromatic polycarbonate which has an extremely small content of foreign matter and is free from residence deterioration such as coloration, crosslinking or gelation when the aromatic polycarbonate is to be kneaded with various components.

摘要翻译： 一种芳族聚碳酸酯挤出机，其是将组分捏合成熔融芳族聚碳酸酯的双螺杆挤出机，该挤出机具有由捏合单元，材料密封单元，后捏合单元和全飞行单元组成的至少一个模块， 通过使用上述挤出机将组分捏合成芳族聚碳酸酯的方法。 本发明还提供一种用于制备芳香族聚碳酸酯的捏合装置和方法，其中当芳香族聚碳酸酯与各种组分捏合时，其具有非常少的异物含量，并且不存在着色，交联或凝胶化等停留劣化。

公开(公告)号：US06252036B1

公开(公告)日：2001-06-26

申请号：US09402835

申请日：1999-10-13

申请人： Kazuki Hatono ,  Hiroaki Kaneko ,  Toru Sawaki ,  Katsushi Sasaki

发明人： Kazuki Hatono ,  Hiroaki Kaneko ,  Toru Sawaki ,  Katsushi Sasaki

IPC分类号： C08G6378

CPC分类号： C08G64/14 ,  C08G64/307

摘要： The purpose of this invention is to produce a stabilized terminal-blocked polycarbonate resin with a limited number of the terminal hydroxy groups having excellent thermal stability, color stability and hydrolysis resistance by an industrially advantageous method using a terminal blocking agent. In the production of a polycarbonate by the melt-polycondensation of an aromatic dihydroxy compound with an aromatic carbonic acid diester in the presence of a polycondensation catalyst, a terminal blocking agent expressed by the following formula (1) [in the formula, R1 is chlorine atom, methoxycarbonyl group or ethoxycarbonyl group; R2 is an alkyl group having a carbon number of 1 to 30, an alkoxy group having a carbon number of 1 to 30, an aryl group having a carbon number of 6 to 30 or an aryloxy group having a carbon number of 6-30] is added after the melt-polycondensation to the system in an amount of 0.3 to 4 mol-equivalent based on the hydroxy terminal group amount of the polycarbonate at 200 to 350° C. under a pressure of 1,013 hPa (760 mmHg) or below for 0.1 second or longer and, thereafter, a stabilizer is added and kneaded into the system at 200 to 350° C. under a pressure of 1.333×105 hPa (105 mmHg) or below for 0.1 second or longer.

摘要翻译： 本发明的目的是通过使用端基封端剂的工业上有利的方法制备具有有限数目的末端羟基的稳定的封端聚碳酸酯树脂，其具有优异的热稳定性，颜色稳定性和耐水解性。 在通过芳族二羟基化合物与芳香族碳酸二酯在缩聚催化剂存在下的熔融缩聚反应制造聚碳酸酯时，由下式（1）表示的封端剂[式中，R1为氯原子 原子，甲氧基羰基或乙氧基羰基; R 2为碳数为1〜30的烷基，碳数为1〜30的烷氧基，碳数为6〜30的芳基或碳原子数为6〜30的芳氧基] 在对于体系进行熔融缩聚之后，相对于聚碳酸酯的羟基端基量为200〜350℃，在1013hPa（760mmHg）以下的压力下，以0.3〜4mol当量的量进行熔融缩聚， 0.1秒以上，然后在1.333×105hPa（105mmHg）以下0.1秒以上的压力下，在200〜350℃下加入稳定剂并捏合到体系中。