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公开(公告)号：US06855390B1
公开(公告)日：2005-02-15
申请号：US10111991
申请日：2000-10-23
申请人： Wilfried Haese , Friedrich-Karl Bruder , Thomas Bieringer , Steffen Kühling , Franky Bruynseels , Dirk van Meirvenne , René de Cleyn
发明人： Wilfried Haese , Friedrich-Karl Bruder , Thomas Bieringer , Steffen Kühling , Franky Bruynseels , Dirk van Meirvenne , René de Cleyn
CPC分类号： G11B7/253 , C08G64/24 , Y10T428/21
摘要： A process for the preparation of optical data carriers made of a particualr polycarbonate is disclosed. The polycarbonate is prepared by the phase boundary process that entails reacting at least one dihydroxydiarylalkane in the form of its alkali metal salts with phosgene in the heterogeneous phase in the presence of sodium hydroxide solution and an organic solvent. The process is characterized in that the feedstock have but low content of Fe, Cr, Ni, Zn, Ca, Mg, Al metals or homologues thereof, and in that the organic solvent is separated off, and in that the polycarbonate which is obtained is worked up. The resulting polycarbonate is particularly useful in producing optical data carriers.
摘要翻译： 公开了一种用于制备由特定聚碳酸酯制成的光学数据载体的方法。 聚碳酸酯是通过相分离方法制备的，该方法需要在氢氧化钠溶液和有机溶剂的存在下使至少一种其碱金属盐形式的二羟基二芳基烷烃与光气在非均相中反应。 该方法的特征在于，原料具有Fe，Cr，Ni，Zn，Ca，Mg，Al金属或其同系物的含量低，并且分离出有机溶剂，并且得到的聚碳酸酯是 工作了。 所得聚碳酸酯特别适用于制造光学数据载体。
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公开(公告)号：US06855794B2
公开(公告)日：2005-02-15
申请号：US10785443
申请日：2004-02-23
CPC分类号： C08J5/18 , C08J2369/00 , C08L69/00 , Y10T428/24 , Y10T428/31 , Y10T428/31507
摘要： Polycarbonate substrates, the preparation of which is based on 1,1-bis-(4-hydroxyphenyl) -3,3,5-trimethylcyclohexane, and their use for producing shaped articles with particularly high purity and extremely high surface brilliance and also the shaped articles which can be produced from the polycarbonate substrate are described.
摘要翻译： 聚碳酸酯基材，其制备基于1,1-双 - （4-羟基苯基）-3,3,5-三甲基环己烷，以及它们用于生产具有特别高纯度和极高表面亮度的成型制品，并且还具有成形 对可从聚碳酸酯基板制造的制品进行说明。
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公开(公告)号：US06835798B1
公开(公告)日：2004-12-28
申请号：US10111925
申请日：2002-08-05
IPC分类号： C08G6400
CPC分类号： C08G64/24 , G11B7/2534
摘要： A process for the preparation of polycarbonate by the phase boundary process is disclosed. The process entails reacting at least one dihydroxydiarylalkane in the form of its alkali metal salts with phosgene in the heterogeneous phase in the presence of sodium hydroxide solution and an organic solvent. The process is characterized in that the feedstock have but low content of Fe, Cr, Ni, Zn, Ca, Mg, Al metals or homologues thereof, and in that the organic solvent is separated off, and in that the polycarbonate which is obtained is worked up. The resulting polycarbonate is particularly useful in producing transparent shaped articles.
摘要翻译： 公开了通过相边界法制备聚碳酸酯的方法。 该方法需要在氢氧化钠溶液和有机溶剂的存在下使至少一种其碱金属盐形式的二羟基二芳基烷烃与光气在非均相中反应。 该方法的特征在于，原料具有Fe，Cr，Ni，Zn，Ca，Mg，Al金属或其同系物的含量低，并且分离出有机溶剂，并且得到的聚碳酸酯是 工作了。 所得聚碳酸酯特别可用于制造透明成型制品。
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公开(公告)号：US06696542B1
公开(公告)日：2004-02-24
申请号：US10111897
申请日：2002-08-05
IPC分类号： C08G6400
CPC分类号： C08J5/18 , C08J2369/00 , C08L69/00 , Y10T428/24 , Y10T428/31 , Y10T428/31507
摘要： Polycarbonate substrates, the preparation of which is based on 1,1-bis-(4-hydroxyphenyl)-3,3,5-trimethylcyclohexanone, and their use for producing shaped articles with particularly high purity and extremely high surface brilliance and also the shaped articles which can be produced from the polycarbonate substrate are described.
摘要翻译： 聚碳酸酯基材，其制备基于1,1-双 - （4-羟基苯基）-3,3,5-三甲基环己酮，以及它们用于生产具有特别高纯度和极高表面亮度的成型制品，并且还具有成形 对可从聚碳酸酯基板制造的制品进行说明。
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