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1.发明授权
公开(公告)号：US4798866A
公开(公告)日：1989-01-17
申请号：US72670
申请日：1987-07-13
申请人： Junichi Yoshitake , Hiroaki Kitani , Norio Kashiwa , Takeshi Muranaka , Kenichi Tominari , Shigeki Nagamatsu
发明人： Junichi Yoshitake , Hiroaki Kitani , Norio Kashiwa , Takeshi Muranaka , Kenichi Tominari , Shigeki Nagamatsu
IPC分类号： C08F4/64 , C08F210/14 , C08L23/18
CPC分类号： C08F210/14 , Y10S526/901 , Y10S526/903 , Y10S526/904
摘要： A branched alpha-olefinic polymer composition having excellent melt flowability, good moldability and excellent melt tension and comprising at least two branched alpha-olefinic polymers each composed of (A) recurring units derived from a branched alpha-olefin containing 5 to 10 carbon atoms and having a branch at the 3-position or a position of a higher number and (B) recurring units derived from a linear alpha-olefin containing 2 to 20 carbon atoms; and a process for producing this polymer composition by a multiplicity of polymerization steps using a catalyst formed from (A) a highly stereoregular titanium catalyst component comprising magnesium, titanium, halogen and an electron donor as essential ingredient, (B) an organoaluminum compound and (C) an electron donor.
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2.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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3.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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公开(公告)号：US5833848A
公开(公告)日：1998-11-10
申请号：US602142
申请日：1996-02-15
申请人： Kenichi Tominari , Akio Kanezawa , Yasujiro Shigeta , Eiji Tada
发明人： Kenichi Tominari , Akio Kanezawa , Yasujiro Shigeta , Eiji Tada
IPC分类号： B01D35/02 , B01D29/11 , B01D29/60 , B01D35/12 , B29B7/32 , B29B7/58 , B29B13/10 , B29C47/12 , B29C47/36 , B29C47/40 , B29C47/68
CPC分类号： B29C47/681 , B01D29/114 , B01D35/12 , B29C47/0009
摘要： A filter for high-viscosity fluids can be used in small to large-sized units, shows no thermal deterioration of the contents, and allows simple, rapid, and safe exchanging of the filter units and has a structure in which at least one filter element is built in, such that when a filter unit having an inlet opening and an outlet opening has the aforementioned inlet opening attached to the outlet opening of the unit on the upstream side and the aforementioned outlet opening attached to the inlet opening of the unit on the downstream side, two supporting plates, one fixed and one movable, are attached to an inlet-side adapter and an outlet-side adapter, the aforementioned filter unit is surrounded by said fixed supporting plate and movable supporting plate, and by moving the movable supporting plate, the various connecting parts can be closed and opened.
摘要翻译： 用于高粘度流体的过滤器可以用于小型到大型的单元，不显示内容物的热劣化，并且允许过滤单元的简单，快速和安全的更换，并且具有其中至少一个过滤元件 内置，使得当具有入口和出口的过滤器单元具有附接到上游侧的单元的出口的上述入口和附接到单元的入口开口的上述出口 下游侧，两个支撑板，一个固定和一个可移动的，连接到入口侧适配器和出口侧适配器，上述过滤器单元被所述固定支撑板和活动支撑板包围，并且通过移动可移动支撑 板，各种连接部分可以关闭和打开。
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公开(公告)号：US5019627A
公开(公告)日：1991-05-28
申请号：US449327
申请日：1989-12-11
申请人： Shiro Honma , Kenichi Tominari , Masayoshi Kurisu
发明人： Shiro Honma , Kenichi Tominari , Masayoshi Kurisu
IPC分类号： C08L23/02 , C08F2/00 , C08F2/38 , C08F4/00 , C08F4/60 , C08F4/64 , C08F4/654 , C08F8/00 , C08F10/00 , C08F10/02 , C08F110/02 , C08L23/00 , C08L23/06
CPC分类号： C08L23/06 , C08F10/02 , C08F110/02 , Y02P20/52
摘要： An injection-molding polyethylene composition consisting essentially of ultrahigh-molecular-weight polyethylene having a molecular weight of at least about 1,650,000 and low-molecular-weight to high-molecular-weight polyethylene having a molecular weight of, for example, about 1500 to about 360,000. This composition is produced by a multistep polymerization process comprising a step of producing the ultrahigh-molecular-weight polyethylene and a step of producing the low-molecular-weight or high-molecular-weight polyethylene.
摘要翻译： 一种注射成型聚乙烯组合物，其基本上由分子量为至少约1,650,000的超高分子量聚乙烯和低分子量至高分子量聚乙烯组成，分子量为例如约1500至约 360,000。 该组合物是通过包括生产超高分子量聚乙烯的步骤和制备低分子量或高分子量聚乙烯的步骤的多步骤聚合方法制备的。
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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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8.发明授权
公开(公告)号：US4906329A
公开(公告)日：1990-03-06
申请号：US62423
申请日：1987-06-16
摘要： In a flash-drying process which comprises flashing a solvent solution of a polymer or copolymer maintained at an elevated temperature and pressure into a flashing zone maintained at a lower pressure than the pressure of the solvent solution through a means for releasing said elevated pressure, thereby evaporating and separating the solvent from the solvent solution, the improvement wherein an inert stripping agent is fed into a flow of the solvent solution at any point between said pressure-releasing means and said flashing zone.
摘要翻译： 在闪蒸方法中，其包括将保持在升高的温度和压力下的聚合物或共聚物的溶剂溶液通过用于释放所述升高的压力的装置保持在比溶剂溶液的压力更低的压力下的闪蒸区域，由此 从溶剂溶液中蒸发和分离溶剂，改进之处在于，在所述压力释放装置和所述闪蒸区域之间的任何点处将惰性汽提剂送入溶剂溶液流中。
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公开(公告)号：US4668752A
公开(公告)日：1987-05-26
申请号：US663557
申请日：1984-10-22
申请人： Kenichi Tominari , Hiroshi Inoue , Masayuki Sakai
发明人： Kenichi Tominari , Hiroshi Inoue , Masayuki Sakai
IPC分类号： C08F4/00 , C08F4/60 , C08F4/64 , C08F210/00 , C08F210/16
CPC分类号： C08F210/16
摘要： Ethylene/C.sub.4 -C.sub.20 alpha-olefin copolymers are disclosed which have new characteristics in regard to composition distribution, degree of branching, randomness and crystallinity by DSC melting points. These copolymers have excellent transparency, impact strength, tear strength, blocking resistance, environmental stress cracking resistance, heat resistance and low-temperature heat sealability in a well-balanced combination when they have a density of at least 0.90. When their density is less than 0.90, these copolymers have particularly excellent transparency, impact strength and low-temperature heat sealability, and by incorporating them in various thermoplastic resins, they serve as an excellent modifier for improved impact strength and low-temperature heat sealability.
摘要翻译： 公开了通过DSC熔点在组成分布，支化度，随机性和结晶度方面具有新特性的乙烯/ C 4 -C 20α-烯烃共聚物。 当它们的密度至少为0.90时，这些共聚物在良好平衡的组合中具有优异的透明度，抗冲击强度，抗撕裂强度，抗粘连性，耐环境应力开裂性，耐热性和低温热封性。 当它们的密度小于0.90时，这些共聚物具有特别优异的透明度，冲击强度和低温热封性，并且通过将它们并入各种热塑性树脂中，它们用作改善冲击强度和低温热封性的优异改性剂。
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