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1.发明授权Process for producing polycarbonate having reduced residual chloroformate therein 失效制备其中残留氯甲酸酯的聚碳酸酯的方法
公开(公告)号：US5459225A
公开(公告)日：1995-10-17
申请号：US251287
申请日：1994-05-31
申请人： Shigeki Kuze , Ryozo Okumura , Yoshinobu Suwabe
发明人： Shigeki Kuze , Ryozo Okumura , Yoshinobu Suwabe
CPC分类号： C08G64/307
摘要： A process for producing a polycarbonate, which comprises transesterifying, in the presence of an antioxidant, (A) a dihydroxy compound or a precursor thereof and (B) a carbonic acid diester having, as an impurity, a chlorine content derived from chloroformate group of at most 30 ppm, which is determined by subtracting the chlorine content extracted with water using ion chromatography from the total chlorine content contained in said carbonic acid diester determined by potentiometric titration.
摘要翻译： 一种制备聚碳酸酯的方法，其包括在抗氧化剂存在下，（A）二羟基化合物或其前体和（B）碳酸二酯的存在下酯交换作为杂质的氯酸酯基的氯含量 最多30ppm，其通过使用离子色谱从水中提取的氯含量从通过电位滴定确定的所述碳酸二酯中含有的总氯含量来确定。
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公开(公告)号：US5349042A
公开(公告)日：1994-09-20
申请号：US31828
申请日：1993-03-16
申请人： Shigeki Kuze , Ryozo Okumura , Yoshinobu Suwabe
发明人： Shigeki Kuze , Ryozo Okumura , Yoshinobu Suwabe
CPC分类号： C08G64/307
摘要： There is disclosed a process for producing a polycarbonate which comprises reacting, by the melt method, (A) a dihydroxy compound with (B) a carbonic diester having a chloride contempt derived from chloroformate group of not more than a prescribed level. According to the above process, a polycarbonate which is excellent in transparency, tone of color, heat resistance and water resistance can be efficiently and economically produced.
摘要翻译： 公开了一种聚碳酸酯的制造方法，其特征在于，通过熔融法使（A）二羟基化合物与（B）具有不高于规定水平的氯甲酸酯类的氯化靛红的碳酸二酯反应。 根据上述方法，可以有效且经济地制造透明性，色调，耐热性和耐水性优异的聚碳酸酯。
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公开(公告)号：US5306802A
公开(公告)日：1994-04-26
申请号：US31631
申请日：1993-03-15
申请人： Ryozo Okumura , Shigeki Kuze , Noriyuki Kunishi
发明人： Ryozo Okumura , Shigeki Kuze , Noriyuki Kunishi
摘要： Disclosed herein is a polycarbonate copolymer comprising repeating units respectively made of a bisphenol A and a tetrahalogenobisphenol A and having a trihalogenophenoxy group as an end group at the terminal, particularly both terminals thereof and a method for efficiently producing said polycarbonate copolymer. This polycarbonate copolymer is superior in impact resistance, flame retardance, molding thermostability and the like, is good in hydrolytic resistance, is much less liable to cause a mold rust and has high quality. Therefore, this polycarbonate copolymer will be extensively used in various industrial materials, for example as the flame retardant parts for household electric appliances, office automation apparatuses and the like.
摘要翻译： 本文公开了包含分别由双酚A和四卤代双酚A制成的重复单元和在末端具有三卤代苯氧基作为端基，特别是两个末端的聚碳酸酯共聚物和有效制备所述聚碳酸酯共聚物的方法。 该聚碳酸酯共聚物的耐冲击性，阻燃性，成型热稳定性等优异，耐水解性良好，容易引起模具锈蚀且质量高的特性。 因此，这种聚碳酸酯共聚物将广泛用于各种工业材料，例如家用电器，办公自动化设备等的阻燃部件。
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公开(公告)号：US5625027A
公开(公告)日：1997-04-29
申请号：US530907
申请日：1995-09-20
申请人： Shigeki Kuze , Ryozo Okumura , Seiji Takahashi
发明人： Shigeki Kuze , Ryozo Okumura , Seiji Takahashi
摘要： A process for producing a branched polycarbonate which comprises using a branching agent containing 200 ppm or less of sulfur; a branched polycarbonate which is prepared by the interfacial method and contains 1.0 ppm or less of residual sulfur as an impurity; and a branched polycarbonate which is prepared by the melting method and contains 2.0 ppm or less of residual sulfur as an impurity; are provided. When the branched polycarbonate is produced by the interfacial method, the branched polycarbonate produced does not show deterioration in heat stability or cause mold corrosion. When the branched polycarbonate is produced by the melting method, the branched polycarbonate produced does not show deterioration in heat stability or in color tone.
摘要翻译： 一种支链聚碳酸酯的制造方法，其特征在于，使用含有200ppm以下的硫的支化剂， 支链聚碳酸酯，其通过界面方法制备并含有1.0ppm或更少的残余硫作为杂质; 和通过熔融法制备并含有2.0ppm或更少的残留硫作为杂质的支化聚碳酸酯; 被提供。 当通过界面方法制造支化聚碳酸酯时，所生产的支化聚碳酸酯不会显示出热稳定性劣化或引起模具腐蚀。 当通过熔融法制造支化聚碳酸酯时，所生产的支化聚碳酸酯不会发生热稳定性或色调的劣化。
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公开(公告)号：US5650480A
公开(公告)日：1997-07-22
申请号：US569131
申请日：1996-01-11
申请人： Ryozo Okumura , Shigeki Kuze , Seiji Takahashi
发明人： Ryozo Okumura , Shigeki Kuze , Seiji Takahashi
CPC分类号： C08G64/307
摘要： The present invention is directed to a process for preparing a polycarbonate in accordance with an ester exchange reaction of a dihydroxy compound (A) and a carbonic acid diester (B) by adjusting, to 2 ppm or less, the concentration of oxygen in an atmosphere in which the ester exchange reaction is carried out.According to the present invention, there can efficiently be prepared the polycarbonate which is free from residence burn and which is excellent in hydrolysis resistance and color tone.
摘要翻译： PCT No.PCT / JP94 / 01090 Sec。 371日期1996年1月11日 102（e）日期1996年1月11日PCT提交1994年7月5日PCT公布。 公开号WO95 / 02006 日期1995年1月19日本发明涉及通过将二羟基化合物（A）和碳酸二酯（B）的酯交换反应通过将浓度调节至2ppm以下来制备聚碳酸酯的方法 的氧气在进行酯交换反应的气氛中。 根据本发明，可以有效地制备不含驻留燃烧的聚碳酸酯，其耐水解性和色调优异。
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公开(公告)号：US5473046A
公开(公告)日：1995-12-05
申请号：US318259
申请日：1994-10-05
申请人： Shigeki Kuze , Ryozo Okumura , Seiji Takahashi
发明人： Shigeki Kuze , Ryozo Okumura , Seiji Takahashi
摘要： A process for producing a branched polycarbonate which comprises using a branching agent containing 200 ppm or less of sulfur; a branched polycarbonate which is prepared by the interfacial method and contains 1.0 ppm or less of residual sulfur as an impurity; and a branched polycarbonate which is prepared by the melting method and contains 2.0 ppm or less of residual sulfur as an impurity; are provided. When the branched polycarbonate is produced by the interfacial method, the branched polycarbonate produced does not show deterioration in heat stability or cause mold corrosion. When the branched polycarbonate is produced by the melting method, the branched polycarbonate produced does not show deterioration in heat stability or in color tone.
摘要翻译： 一种支链聚碳酸酯的制造方法，其特征在于，使用含有200ppm以下的硫的支化剂， 支链聚碳酸酯，其通过界面方法制备并含有1.0ppm或更少的残余硫作为杂质; 和通过熔融法制备并含有2.0ppm或更少的残留硫作为杂质的支化聚碳酸酯; 被提供。 当通过界面方法制造支化聚碳酸酯时，所生产的支化聚碳酸酯不会显示出热稳定性劣化或引起模具腐蚀。 当通过熔融法制造支化聚碳酸酯时，所生产的支化聚碳酸酯不会发生热稳定性或色调的劣化。
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公开(公告)号：US5349043A
公开(公告)日：1994-09-20
申请号：US069598
申请日：1993-06-01
申请人： Shigeki Kuze , Ryozo Okumura , Noriyuki Kunishi
发明人： Shigeki Kuze , Ryozo Okumura , Noriyuki Kunishi
CPC分类号： C08G64/30
摘要： A polycarbonate having desirable color tone or transparency, as well as desirable heat resistance and water resistance, in which the amounts of residual metals in the polycarbonate are 10 ppm or less in total of Fe, Cr and Mo and 50 ppm or less in total of Ni and Cr. The polycarbonate is obtained by transesterification of (A) a dihydroxy compound and (B) a carbonic diester in a reactor made of a metallic material containing at least one metal selected from the group consisting of Fe, Cr, Mo, Ni and Cu, and controlling the water content in the reactor to 500 ppm or less.
摘要翻译： 具有所需色调或透明度的聚碳酸酯，以及所需的耐热性和耐水性，其中聚碳酸酯中的残留金属的总量为Fe，Cr和Mo的总和为10ppm以下，总共为50ppm以下 镍和铬。 聚碳酸酯通过（A）二羟基化合物和（B）碳酸二酯在由含有选自Fe，Cr，Mo，Ni和Cu中的至少一种金属的金属材料制成的反应器中进行酯交换获得，以及 将反应器中的水含量控制在500ppm以下。
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公开(公告)号：US06498228B1
公开(公告)日：2002-12-24
申请号：US09868919
申请日：2001-10-16
申请人： Akio Nodera , Shigeki Kuze , Tsuyoshi Murakami , Naoki Mitsuta
发明人： Akio Nodera , Shigeki Kuze , Tsuyoshi Murakami , Naoki Mitsuta
IPC分类号： C08G6402
摘要： Disclosed are a flame-retardant polycarbonate resin composition comprising, as the essential ingredients, (A) a polycarbonate resin, (B) a specific styrenic resin, and (C) a specific phosphate compound, and its moldings. Containing no halogen, the resin composition and its moldings have good flame retardancy, impact strength, heat-resistant stability, thermal aging resistance, and wet heat resistance.
摘要翻译： 公开了一种阻燃聚碳酸酯树脂组合物，其包含作为必要成分的（A）聚碳酸酯树脂，（B）特定的苯乙烯类树脂和（C）特定的磷酸酯化合物及其成型品。 不含卤素，树脂组合物及其成型品具有良好的阻燃性，冲击强度，耐热稳定性，耐热老化性和耐湿热性。
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9.发明授权
公开(公告)号：US5104964A
公开(公告)日：1992-04-14
申请号：US549270
申请日：1990-07-06
IPC分类号： C08G64/14
CPC分类号： C08G64/14
摘要： A branched polycarbonate having (1) an intrinsic viscosity of 0.3 to 2 dl/g, (2) a branching parameter of 0.05 to 0.9, (3) a degree of branching of 0.2.times.10.sup.-4 and optionally (4) a taking-off parameter of 2.5 to 20. The branched polycarbonate is useful as a raw material for blow-moldings.
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10.发明授权
公开(公告)号：US5243018A
公开(公告)日：1993-09-07
申请号：US924066
申请日：1992-09-11
申请人： Shigeki Kuze , Takashi Komatsu
发明人： Shigeki Kuze , Takashi Komatsu
摘要： This is a branched polycarbonate which comprises a branched structure derived from a branching agent such as 1,1,1-tris(4-hydroxyphenyl)ethane, a repeating unit (I) represented by the following general formula: ##STR1## a repeating unit (II) represented by the following general formula: ##STR2## and a tribromophenoxy group bonded to the terminal thereof, said branched polycarbonate having a viscosity average molecular weight of 10,000 to 50,000, a ratio of said branched structure of 0.1 to 2.0 mol % and a content of said repeating unit (II) of 10 mol % or less.This branched polycarbonate is excellent in flame retardancy, has sufficiently high mechanical properties and further is excellent in melt properties suitable for blow molding.
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