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公开(公告)号：US5525701A
公开(公告)日：1996-06-11
申请号：US353857
申请日：1994-12-12
CPC分类号： B01J19/1862 , C08G64/205 , C08G64/307 , B01J2219/00168
摘要： Aromatic polycarbonates manufactured by polycondensation of a dihydric compound and a carbonic acid diester using at least two reactors in series have improved color and low impurities content when filtered before the final reactor and again before the final reactor outlet.
摘要翻译： 通过使用至少两个串联的两个反应器使二羟基化合物和碳酸二酯缩聚制备的芳族聚碳酸酯在最终反应器之前过滤并且再次在最终反应器出口之前具有改善的颜色和低的杂质含量。
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2.发明授权
公开(公告)号：US5364926A
公开(公告)日：1994-11-15
申请号：US22710
申请日：1993-03-01
IPC分类号： C08G64/20 , C08G64/30 , C08G64/40 , C08K3/00 , C08K3/30 , C08K3/32 , C08K5/00 , C08K5/13 , C08K5/1515 , C08K5/36 , C08K5/41 , C08K5/42 , C08K5/51 , C08K5/521 , C08K5/524 , C08L69/00 , C08G64/00
CPC分类号： C08G64/307
摘要： Object: The present invention was conceived in light of the above-described prior art. The object of this invention is to provide a method for preparing optical-grade polycarbonate compositions, which method is able to prepare with good productivity optical-grade polycarbonate compositions that have not only excellent clarity and water resistance, but also excellent retention stability such as heat stability and hue stability when molten and a low content of inclusions and impurities, and that undergo little heat deterioration.Constitution: The method for preparing optical-grade polycarbonate compositions according to this invention, which method comprises the melt-polycondensation of an aromatic dihydroxy compound and a diester carbonate in the presence of a catalyst, followed by the addition of additives [B] while the polycarbonate [A] obtained as the reaction product is in a molten state, and mixing.In this invention, it is preferable to prepare the optical-grade polycarbonate composition by filtration with a polymer filter following mixing.
摘要翻译： 对象：本发明是鉴于上述现有技术而构成的。 本发明的目的是提供一种制备光学级聚碳酸酯组合物的方法，该方法能够制备具有良好生产率的光学级聚碳酸酯组合物，其不仅具有优异的透明度和耐水性，而且具有优异的保留稳定性，例如热 熔融时的稳定性和色调稳定性以及夹杂物和杂质含量低，并且几乎不发生热劣化。 结构：根据本发明的光学级聚碳酸酯组合物的制备方法，该方法包括在催化剂存在下芳族二羟基化合物和二酯碳酸酯的熔融缩聚，然后加入添加剂[B]，同时 作为反应产物获得的聚碳酸酯[A]处于熔融状态并混合。 在本发明中，优选在混合后用聚合物过滤器过滤制备光学级聚碳酸酯组合物。
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公开(公告)号：US5502153A
公开(公告)日：1996-03-26
申请号：US330141
申请日：1994-10-24
CPC分类号： C08G64/307
摘要： Object: The present invention was conceived in light of the above-described prior art. The object of this invention is to provide a method for preparing optical-grade polycarbonate compositions, which method is able to prepare with good productivity optical-grade polycarbonate compositions that have not only excellent clarity and water resistance, but also excellent retention stability such as heat stability and hue stability when molten and a low content of inclusions and impurities, and that undergo little heat deterioration.Constitution: The method for preparing optical-grade polycarbonate compositions according to this invention, which method comprises the melt-polycondensation of an aromatic dihydroxy compound and a diester carbonate in the presence of a catalyst, followed by the addition of additives B! while the polycarbonate A! obtained as the reaction product is in a molten state, and mixing.In this invention, it is preferable to prepare the optical-grade polycarbonate composition by filtration with a polymer filter following mixing.
摘要翻译： 对象：本发明是鉴于上述现有技术而构成的。 本发明的目的是提供一种制备光学级聚碳酸酯组合物的方法，该方法能够制备具有良好生产率的光学级聚碳酸酯组合物，其不仅具有优异的透明度和耐水性，而且具有优异的保留稳定性，例如热 熔融时的稳定性和色调稳定性以及夹杂物和杂质含量低，并且几乎不发生热劣化。 结构：根据本发明的光学级聚碳酸酯组合物的制备方法，该方法包括在催化剂存在下芳族二羟基化合物和二酯碳酸酯的熔融缩聚，然后加入添加剂[B]，同时 作为反应产物获得的聚碳酸酯[A]处于熔融状态并混合。 在本发明中，优选在混合后用聚合物过滤器过滤制备光学级聚碳酸酯组合物。
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4.发明授权Hot-melt polycondensation method for manufacturing a polycarbonate composition 失效用于制造聚碳酸酯组合物的热熔缩缩方法
公开(公告)号：US5514767A
公开(公告)日：1996-05-07
申请号：US281965
申请日：1994-07-28
IPC分类号： C08G64/04 , C08G64/00 , C08G64/20 , C08G64/30 , C08G64/40 , C08G64/42 , C08K3/00 , C08K3/20 , C08K5/36 , C08K5/41 , C08K5/42 , C08L69/00
CPC分类号： C08G64/307
摘要： The method of the present invention is a hot-melt polycondensation for an aromatic dihydroxy compound and a dicarbonate in the presence of a basic catalyst, adding sulfur-containing acid compound with a pKa value less than 3 or the derivative thereof, and 5-1,000 ppm of water, and additives as needed for the polycarbonate while the reaction product polycarbonate is still in a molten state, and kneading the material.
摘要翻译： 本发明的方法是在碱性催化剂存在下加入芳族二羟基化合物和二碳酸酯的加热熔融缩聚反应，加入pKa值小于3的含硫酸化合物或其衍生物，5-1000 ppm的水和聚碳酸酯所需的添加剂，同时反应产物聚碳酸酯仍处于熔融状态，并捏合该材料。
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公开(公告)号：US06340738B2
公开(公告)日：2002-01-22
申请号：US09845642
申请日：2001-04-30
申请人： Tomoaki Shimoda , Takeshi Sakashita
发明人： Tomoaki Shimoda , Takeshi Sakashita
IPC分类号： C08G6400
CPC分类号： C08G64/307 , C08G64/205
摘要： To provide a method with which a polycarbonate can be manufactured efficiently without any pipe clogging or foreign material admixture in the course of the continuous manufacture of a polycarbonate. A continuous method for manufacturing a polycarbonate, characterized in that, in the continuous manufacture of a polycarbonate by transesterification from a dihydroxy compound and a carbonic diester, the crystallization of a polycarbonate lower polycondensate produced in the intermediate stage of a polycondensation reaction whose intrinsic viscosity (IV) measured at 20° C. in methylene chloride is between 0.1 and 0.4 dL/g is suppressed by setting the temperature to be at least 230° C. on the surface of the reactor equipment in contact with the polycarbonate lower polycondensate.
摘要翻译： 提供一种在连续制造聚碳酸酯的过程中可以有效地制造聚碳酸酯而没有任何管堵塞或异物混合的方法。一种用于制造聚碳酸酯的连续方法，其特征在于，在连续制造聚碳酸酯 通过二羟基化合物和碳酸二酯的酯交换反应，在二氯甲烷中在20℃下测定的特性粘度（Ⅳ）在二氯甲烷中的缩聚反应的中间阶段产生的聚碳酸酯低缩聚物的结晶为0.1〜0.4dL / g 通过在与聚碳酸酯低缩聚物接触的反应器设备的表面上设定温度至少为230℃来抑制。
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6.发明授权Copolycarbonate, a copolycarbonate composition, and a method for their manufacture 失效共聚碳酸酯，共聚碳酸酯组合物及其制造方法
公开(公告)号：US5670605A
公开(公告)日：1997-09-23
申请号：US575566
申请日：1995-12-20
CPC分类号： C08G64/307 , C08G64/04 , C08G64/10 , C08G64/12 , C08L69/00
摘要： A heat resistant copolycarbonate comprises a component of the formula: ##STR1## and a component selected from: ##STR2## R.sup.1 and R.sup.2 are same or different halogens or monovalent hydrocarbons, R.sup.3, R.sup.4, R.sup.6 and R.sup.7 are hydrogen atoms or monovalent hydrocarbons, R.sup.5 and R.sup.8 are bivalent hydrocarbons, R.sup.a, R.sup.b, R.sup.c R.sup.d, R.sup.e, R.sup.f, R.sup.g R.sup.j, R.sup.k and R.sup.l are the same or different halogen atoms, hydrocarbon groups having 1-10 carbon atoms, or hydrocarbon groups having 1-10 carbon atoms which are at least partially halogen-substituted and R.sup.b and R.sup.c may also be hydrogen, m, n, s, t, u, v and w are integers from 0-4, p and q are integers from 0-3 and r is an integer from 1-10.
摘要翻译： 耐热共聚碳酸酯包括下式的组分：选自以下成分：
在这些式中，X是 ，R1和R2是相同或不同的卤素或一价 烃，R3，R4，R6和R7是氢原子或一价烃，R5和R8是二价烃，Ra，Rb，Rc Rd，Re，Rf，Rg Rj，Rk和R1是相同或不同的卤素原子，烃基 具有1-10个碳原子，或具有至少部分卤素取代的1-10个碳原子的烃基，R b和R c也可以是氢，m，n，s，t，u，v和w是0的整数 -4，p和q为0-3的整数，r为1-10的整数。 -
公开(公告)号：US5606009A
公开(公告)日：1997-02-25
申请号：US390200
申请日：1995-02-17
CPC分类号： C08G64/307 , C08G64/06
摘要： The present invention provides copolymerized copolyester-carbonates having improved flow and formability, in addition to excellent mechanical properties, heat resistance, transparency, and water resistance obtained by copolymerization of two or more aromatic dihydroxy compounds and a compound capable of reacting with those aromatic dihydroxy compounds to form carbonate linkages, characterized in that, of all the constituent repeating units derived from aromatic dihydroxy compounds, 2-40 mole % are derived from resorcin and/or substituted resorcins.
摘要翻译： 本发明提供具有改善的流动性和成型性的共聚共聚酯 - 碳酸酯，除了通过两种或更多种芳族二羟基化合物和能够与这些芳族二羟基化合物反应的化合物的共聚合获得的优异的机械性能，耐热性，透明性和耐水性 形成碳酸酯键，其特征在于，在衍生自芳族二羟基化合物的所有构成重复单元中，2-40摩尔％衍生自间苯二酚和/或取代的芦荟蛋白。
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公开(公告)号：US5550205A
公开(公告)日：1996-08-27
申请号：US342987
申请日：1994-11-21
CPC分类号： C08G64/307 , C08G64/06
摘要： To provide novel polycarbonates and a manufacturing method for them.Copolycarbonates obtained by copolymerizing at least two aromatic dihydroxy compounds and a compound capable of introducing carbonate links. Preferably, they contain, as the components derived from the aromatic dihydroxy compounds, constituent units described by formulas [I] and [II] in proportions of from 8.times.10.sup.-5 to 3.times.10.sup.-2 moles of [II] per mole of [I], and preferably they have a limiting viscosity number [.eta.] of from 0.2 to 1.2 dL/g, as measured in methylene chloride at 20.degree. C. ##STR1## (X, Y,: Alkylene, cycloalkylene, --O--, --S--, --SO--, OR --SO.sub.2 --. R.sup.1, R.sup.2, R.sup.7, R.sup.8 : hydrocarbon group with from 1 to 10 carbon atoms which may be substituted with halogen; or a halogen atom. m, n, p: Integers ranging from 0 to 4, indicating the number of substituents. q: Integer ranging from 0 to 3, indicating the number of substituents. R.sup.6 : Straight-chain, branched, or cyclic hydrocarbon group with from 1 to 20 carbon atoms which may be substituted with hydrogen atoms or halogen; or a halogen atom).Manufacturing method for said copolycarbonates in which the aromatic dihydroxy compounds and carbonic acid diesters are melt-polycondensed in the presence of an alkali metal or alkaline earth metal catalyst.The copolycarbonates of the invention have excellent melt elasticity and melt strength as well as excellent hue, heat resistance, moisture resistance, and transparency.
摘要翻译： 提供新的聚碳酸酯及其制备方法。 通过共聚至少两种芳族二羟基化合物和能够引入碳酸酯连接的化合物而获得的共聚碳酸酯。 优选地，作为衍生自芳族二羟基化合物的组分，由式[I]和[II]描述的组分单元含有每摩尔[I]的8×10-5至3×10-2摩尔[II]的比例， 并且优选它们的特性粘度数η为0.2-1.2dL / g，如在二氯甲烷中在20℃下测量的。[II]（X，Y，：亚烷基， 亚环烷基，-O - ， - S - ， - SO-，OR -SO 2 - ，R 1，R 2，R 7，R 8：可以被卤素取代的具有1至10个碳原子的烃基; n：p：整数为0〜4，表示取代基数q：整数为0〜3，表示取代基数R6：直链，支链或环状烃基与1〜20碳 可以被氢原子或卤素取代的原子;或卤素原子）。 其中芳族二羟基化合物和碳酸二酯在碱金属或碱土金属催化剂存在下熔融缩聚的所述共聚碳酸酯的制备方法。 本发明的共聚碳酸酯具有优异的熔体弹性和熔体强度，以及优异的色相，耐热性，耐湿性和透明度。
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公开(公告)号：US5324809A
公开(公告)日：1994-06-28
申请号：US903318
申请日：1992-06-24
IPC分类号： C08G64/14 , C08G64/00 , C08G64/04 , C08G64/20 , C08G64/30 , C08G64/40 , C08K3/00 , C08K3/24 , C08K5/00 , C08K5/1515 , C08K5/36 , C08K5/42 , C08K5/52 , C08L69/00
CPC分类号： C08G64/307
摘要： The present invention relates to a method of preparing a copolymeric polycarbonate which comprises melt-polycondensing a mixture of an aromatic dihydroxy compound comprising hydroquinone or substituted hydroquinones and a diester carbonate in the presence of a catalyst containing alkali metal compounds and/or alkaline earth metal compounds.
摘要翻译： 本发明涉及制备共聚聚碳酸酯的方法，该方法包括在含有碱金属化合物和/或碱土金属化合物的催化剂存在下，将包含氢醌或取代的氢醌的芳族二羟基化合物和二酯碳酸酯的混合物熔融缩聚 。
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10.发明授权Polycarbonate, polyestercarbonate resin compounds and preparing methods thereof 失效聚碳酸酯，聚碳酸酯树脂化合物及其制备方法
公开(公告)号：US5187242A
公开(公告)日：1993-02-16
申请号：US627125
申请日：1990-12-13
摘要： A polycarbonate composition which contains 60-95 parts by weight of a polycarbonate with a terminal hydroxyl group concentration of 5-95 mol % and 40-5 parts by weight of polyester.
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