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    • 5. 发明授权
    • Polycarbonate resin composition optical recording medium, and substrate therefor
    • 聚碳酸酯树脂组合物光记录介质及其基材
    • US06407199B1
    • 2002-06-18
    • US09744559
    • 2001-01-26
    • Masumi HirataToru SawakiWataru FunakoshiKatsushi SasakiJyuhou Matsuo
    • Masumi HirataToru SawakiWataru FunakoshiKatsushi SasakiJyuhou Matsuo
    • C08G6400
    • C08L69/00C08K5/0008C08K5/06C08K5/101C08K5/103C08K5/13C08K5/156C08K5/1565C08K5/17C08K5/42C08K5/50C08K5/526C08K5/53G11B7/2534C08L2666/16
    • A polycarbonate resin composition which is excellent in thermal stability such as color retention at the time of melt molding, for example, the prevention of yellowing, and moldability such as releasability and transferability and therefore particularly suitable for the production of precision optical moldings such as optical disk substrates and lenses. The polycarbonate resin composition comprises (A) an aromatic polycarbonate, and (B) a cyclic carbonate compound, a monoester compound of a divalent aliphatic alcohol having 3 to 14 carbon.atoms and an aliphatic monocarboxylic acid having 12 to 24 carbon atoms, or an ether compound obtained by converting at least one hydroxyl group of a polyvalent aliphatic alcohol having 3 to 14 carbon atoms into an aliphatic oxy group having 1 to 18 carbon atoms, or (C) a partial ester compound of an aliphatic alcohol having a valence of 2 to 6 and 2 to 14 carbon atoms and an aliphatic monocarboxylic acid having 12 to 24 carbon atoms, a cyclic phenol compound or a compound selected from hydrochloric acid, phosphoric acid, phosphorous acid, boric acid, and amine salts and ammonium salts thereof.
    • 熔融成型时的热稳定性优异的聚碳酸酯树脂组合物,例如防止黄变,以及脱模性和转印性等成型性,因此特别适用于制造精密光学模制品如光学 磁盘基板和透镜。 聚碳酸酯树脂组合物包含(A)芳族聚碳酸酯和(B)环状碳酸酯化合物,具有3〜14个碳原子的二价脂肪族醇的单酯化合物和碳原子数12〜24的脂肪族一元羧酸,或 通过将具有3〜14个碳原子的多元脂肪醇的至少一个羟基转化为碳原子数1〜18的脂肪族氧基而得到的醚化合物,或(C)2价的脂肪族醇的偏酯化合物 碳原子数为6〜2〜14的脂肪族单羧酸,环状酚化合物或选自盐酸,磷酸,亚磷酸,硼酸及其胺盐及铵盐的化合物。
    • 6. 发明授权
    • Process for producing polycarbonate resin
    • 生产聚碳酸酯树脂的方法
    • US06252036B1
    • 2001-06-26
    • US09402835
    • 1999-10-13
    • Kazuki HatonoHiroaki KanekoToru SawakiKatsushi Sasaki
    • Kazuki HatonoHiroaki KanekoToru SawakiKatsushi Sasaki
    • C08G6378
    • C08G64/14C08G64/307
    • 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.
    • 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。
    • 8. 发明授权
    • Process for production of aromatic polycarbonate resin and molded article of aromatic polycarbonate resin
    • 芳香族聚碳酸酯树脂的制造方法和芳香族聚碳酸酯树脂的成型体
    • US06472496B2
    • 2002-10-29
    • US09840144
    • 2001-04-24
    • Kyosuke MatsumotoMasasi SimonaruToru SawakiKatsushi SasakiMasahiro MurakamiYoshiki Matsuoka
    • Kyosuke MatsumotoMasasi SimonaruToru SawakiKatsushi SasakiMasahiro MurakamiYoshiki Matsuoka
    • C08G6400
    • C08G64/307
    • An aromatic polycarbonate resin is produced under the conditions that the flow velocity of the reaction mixture in a pipe through which a molten reaction mixture passes is a specific value or over, the viscosity-average molecular weight of the reaction mixture is 1,000 or more, the sum of the average retention times of the reaction mixture is not longer than 3 hours, the wall temperature of the pipe through which a molten reaction mixture passes is set to be higher than the temperature of the reaction mixture in the pipe, the catalyst deactivation agent is added within 2 hours after the completion of the melt polycondensation reaction, the filtration is carried out by using a filter having a specific retained particle size under a specific pressure difference, specific treated amount of the aromatic polycarbonate resin per unit area of the filter and a ratio of W (flow quantity of filtered polymer)×1,000/A (maximum area of the polymer path in the filtration vessel) falling within a specific range, etc.
    • 在熔融反应混合物通过的管中的反应混合物的流速为特定值以上的条件下制造芳香族聚碳酸酯树脂,反应混合物的粘均分子量为1000以上 反应混合物的平均保留时间的总和不超过3小时,熔融反应混合物通过的管的壁温设定为高于管中的反应混合物的温度,催化剂失活剂 在熔融缩聚反应完成后2小时内加入,过滤通过使用具有特定保留粒径的特定压力差的过滤器,每单位面积过滤器的芳族聚碳酸酯树脂的特定处理量, 过滤聚合物的流量(以过滤聚合物的流量计)×1,000 / A(过滤容器内的聚合物路径的最大面积) 特点范围等
    • 9. 发明授权
    • Production process and production system of aromatic polycarbonate
    • 芳香族聚碳酸酯的生产工艺和生产体系
    • US06670440B2
    • 2003-12-30
    • US10203201
    • 2002-08-07
    • Kyosuke MatsumotoMasasi SimonaruToru SawakiKatsushi SasakiKeiichi Kaneko
    • Kyosuke MatsumotoMasasi SimonaruToru SawakiKatsushi SasakiKeiichi Kaneko
    • C08G6400
    • C08G64/205C08G64/30C08G64/307
    • There is provided a technique for producing an aromatic polycarbonate which undergoes no deterioration in quality in a gear pump, has excellent hue and contains a small amount of foreign materials even when a production plant is scaled up. In producing the aromatic polycarbonate by melt-polycondensation, a molten polycondensate is fed continuously into a shaft seal portion of a self-lubricating gear pump disposed for transporting the polycondensate from a polycondensation vessel such that the following expressions: Q/S≧0.1 (cm/sec) wherein Q is a flow rate (cm3/sec) of the polycondensate, and S is a cross sectional area (cm2) of a passage provided for feeding the polycondensate to the shaft seal portion, and D≦2.9W1/3 wherein D is an internal diameter (cm) of a pipe, and W is a flow rate, are satisfied, thereby operating the gear pump. A polycondensation vessel therefor is also disclosed.
    • 提供了一种生产芳族聚碳酸酯的技术,其在齿轮泵中不会劣化,具有优异的色调并且即使在生产设备放大时也含有少量异物。通过熔融缩聚制备芳族聚碳酸酯 将熔融缩聚物连续地供给到设置用于从缩聚容器输送缩聚物的自润滑齿轮泵的轴密封部分中,使得以下表达式:其中Q是流动速率(cm 3 / sec) 缩聚物,S为将缩聚物供给轴封部的通路的截面积(cm 2),D为管的内径(cm),W为流量,为 满意,从而操作齿轮泵。 还公开了一种缩聚容器。