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    Method for end-capping polycarbonate resins and composition for use in same
    2.
    发明授权
    Method for end-capping polycarbonate resins and composition for use in same 有权
    封端聚碳酸酯树脂的方法及其组合物

    公开(公告)号：US06706846B2

    公开(公告)日：2004-03-16

    申请号：US09682723

    申请日：2001-10-10

    申请人： Hans Peter Brack ,  Dennis Karlik ,  Theodorus Lambertus Hoeks ,  Irene Dris ,  John Morgan Whitney

    发明人： Hans Peter Brack ,  Dennis Karlik ,  Theodorus Lambertus Hoeks ,  Irene Dris ,  John Morgan Whitney

    IPC分类号： C08G6400

    CPC分类号： C08G64/307 ,  C08G64/14 ,  C08G64/42

    摘要： A method for end-capping polycarbonate resins, comprising the step of processing a mixture comprising a polycarbonate having free hydroxyl-end groups and an end-capping reagent in a melt transesterification reaction to produce a polycarbonate resin, wherein the end-capping reagent comprises a mixture of: (a) at least one species of a symmetrical activated aromatic carbonate, and (b) at least one species of an optionally-substituted phenol, whereby said end-capping reagent reacts with at least some of the free hydroxyl end-groups of the polycarbonate to produce an end-capped polycarbonate resin.

    摘要翻译： 一种封端聚碳酸酯树脂的方法，包括在熔融酯交换反应中处理包含游离羟基端基的聚碳酸酯和封端剂的混合物以制备聚碳酸酯树脂的步骤，其中封端剂包括 混合物：（a）至少一种对称活性芳族碳酸酯，和（b）至少一种任选取代的苯酚，其中所述封端剂与至少一些游离羟基端基反应 的聚碳酸酯以制备端封聚碳酸酯树脂。

    Method of purifying dianhydrides
    4.
    发明授权
    Method of purifying dianhydrides 有权
    二酸酐的纯化方法

    公开(公告)号：US07495113B2

    公开(公告)日：2009-02-24

    申请号：US11022905

    申请日：2004-12-22

    申请人： Eric James Pressman ,  Lioba Maria Kloppenburg ,  John Morgan Whitney ,  Abhijit Namjoshi ,  Spencer Thomas Oulman

    发明人： Eric James Pressman ,  Lioba Maria Kloppenburg ,  John Morgan Whitney ,  Abhijit Namjoshi ,  Spencer Thomas Oulman

    IPC分类号： C07D493/00

    CPC分类号： C07C51/087 ,  C07C51/47 ,  C07C51/56 ,  C07C51/573 ,  C07C65/24 ,  C07C63/331

    摘要： A method of preparing a purified dianhydride is provided where said method comprises the steps of preparing a first mixture comprising water, at least one inorganic acid, and at least one dianhydride, said dianhydride comprising at least one impurity which is soluble in aqueous acid heating said first mixture until substantially all of said dianhydride is converted to a tetraacid comprised in a second mixture; filtering at least a portion of said second mixture to provide a solid tetraacid and a filtrate, said filtrate comprising at least a portion of said impurity; and heating the tetraacid provided in a solvent with concurrent distillation of water to provide a third mixture comprising a purified dianhydride and a solvent.

    摘要翻译： 提供了制备纯化二酐的方法，其中所述方法包括以下步骤：制备包含水，至少一种无机酸和至少一种二酐的第一混合物，所述二酐包含至少一种可溶于酸水溶液中的杂质，加热所述 第一混合物直到基本上所有的所述二酐转化成包含在第二混合物中的四元酸; 过滤所述第二混合物的至少一部分以提供固体四元酸和滤液，所述滤液包含至少一部分所述杂质; 并且同时蒸馏水中加热溶剂中提供的四元酸，以提供包含纯化的二酐和溶剂的第三混合物。

    Method and system for preparing a polycarbonate, copolymerization reagent and polycarbonate
    5.
    发明授权
    Method and system for preparing a polycarbonate, copolymerization reagent and polycarbonate 失效
    制备聚碳酸酯，共聚试剂和聚碳酸酯的方法和系统

    公开(公告)号：US06747119B2

    公开(公告)日：2004-06-08

    申请号：US10107149

    申请日：2002-03-28

    申请人： Hans-Peter Brack ,  Dennis Karlik ,  Theodorus Lambertus Hoeks ,  John Morgan Whitney

    发明人： Hans-Peter Brack ,  Dennis Karlik ,  Theodorus Lambertus Hoeks ,  John Morgan Whitney

    IPC分类号： C08G6400

    CPC分类号： C08G63/64 ,  C08G64/307

    摘要： A method for preparing a polycarbonate comprises preparing a free hydroxyl-containing polycarbonate and reacting the hydroxyl-containing polycarbonate with a mixture of (B) a symmetrical optionally activated aromatic carbonic acid diester and (C) an optionally substituted aromatic hihydroxy compound, diol or diacid. A copolymerization reagent comprises a mixture of (B) a symmetrical optionally activated aromatic carbonic acid diester and (C) an optionally substituted aromatic hihydroxy compound, diol or diacid. A copolymer comprises [polycarbonate]x moieties; (B) [symmetrical optionally activated aromatic carbonic acid diester]y moieties and (C) [optionally substituted aromatic hihydroxy compound, diol or diacid]z moieties, wherein x, y and z are mole percents of the copolymer.

    摘要翻译： 制备聚碳酸酯的方法包括制备游离含羟基的聚碳酸酯并使含羟基的聚碳酸酯与（B）对称的任选活化的芳族碳酸二酯和（C）任选取代的芳族羟基化合物，二醇或二酸的混合物 。 共聚试剂包括（B）对称的任选活化的芳族碳酸二酯和（C）任选取代的芳族羟基化合物，二醇或二酸的混合物。 共聚物包含[聚碳酸酯] x部分; （B）[对称任选活化的芳族碳酸二酯] y部分和（C）[任选取代的芳族羟基化合物，二醇或二酸] z部分，其中x，y和z是共聚物的摩尔百分比。

    Method for end-capping polycarbonate resins and composition for use in same
    6.
    发明授权
    Method for end-capping polycarbonate resins and composition for use in same 有权
    封端聚碳酸酯树脂的方法及其组合物

    公开(公告)号：US06710156B2

    公开(公告)日：2004-03-23

    申请号：US10268395

    申请日：2002-10-10

    申请人： John Morgan Whitney ,  Hans-Peter Brack ,  Theodorus Lambertus Hoeks ,  Irene Dris ,  Dennis Karlik

    发明人： John Morgan Whitney ,  Hans-Peter Brack ,  Theodorus Lambertus Hoeks ,  Irene Dris ,  Dennis Karlik

    IPC分类号： C08G6400

    CPC分类号： C08G64/307 ,  C08G64/14 ,  C08G64/42

    摘要： A method for end-capping polycarbonate resins, comprising the step of processing a mixture comprising a polycarbonate having free hydroxyl-end groups and an end-capping reagent in a melt transesterification reaction to produce a polycarbonate resin, wherein the end-capping reagent comprises a mixture of: (a) at least one species of a symmetrical activated aromatic carbonate, and (b) at least one species of an optionally-substituted phenol, whereby said end-capping reagent reacts with at least some of the free hydroxyl end-groups of the polycarbonate to produce an end-capped polycarbonate resin.

    摘要翻译： 一种封端聚碳酸酯树脂的方法，包括在熔融酯交换反应中处理包含游离羟基端基的聚碳酸酯和封端剂的混合物以制备聚碳酸酯树脂的步骤，其中封端剂包括 混合物：（a）至少一种对称活性芳族碳酸酯，和（b）至少一种任选取代的苯酚，其中所述封端剂与至少一些游离羟基端基反应 的聚碳酸酯以制备端封聚碳酸酯树脂。

    Method of enhancing pit replication in optical disks
    7.
    发明授权
    Method of enhancing pit replication in optical disks 失效
    增加光盘中凹坑复制的方法

    公开(公告)号：US06734277B2

    公开(公告)日：2004-05-11

    申请号：US10141678

    申请日：2002-05-09

    申请人： Hans-Peter Brack ,  John Morgan Whitney ,  Jan-Pleun Lens ,  Christopher David Goewey ,  Irene Dris

    发明人： Hans-Peter Brack ,  John Morgan Whitney ,  Jan-Pleun Lens ,  Christopher David Goewey ,  Irene Dris

    IPC分类号： C08G6400

    CPC分类号： C08G64/14 ,  G11B7/2534

    摘要： Polycarbonate compositions incorporating long chain alkylphenol endgroups, for example cardanol, show enhanced pit replication characteristics when molded into optical disks. The enhancement in molding performance is especially pronounced at the shortest mold cycle times tested. Thus, a blend of 75 parts by weight bisphenol A polycarbonate 92 percent encapped with phenol, and 25 parts by weight bisphenol A polycarbonate about 100 percent endcapped with cardanol showed enhanced pit replication performance in optical disk molding trials relative to the same bisphenol A polycarbonate alone and analogous blends utilizing short chain alkylphenols.

    摘要翻译： 结合长链烷基酚端基（例如腰果酚）的聚碳酸酯组合物在模制成光盘时显示增强的凹坑复制特性。 在最短的模具循环时间测试中，成型性能的提高尤其明显。 因此，相对于单独的相同的双酚A聚碳酸酯，75重量份的双酚A聚碳酸酯92重量％与苯酚封端的共混物和25重量份约100重量％的与腰果醇封端的双酚A聚碳酸酯的共混物在光盘成型试验中显示增强的凹坑复制性能 和使用短链烷基酚的类似共混物。

    Phenolic compounds, polymers derived therefrom, and method
    8.
    发明授权
    Phenolic compounds, polymers derived therefrom, and method 有权
    酚类化合物，由其衍生的聚合物和方法

    公开(公告)号：US06255438B1

    公开(公告)日：2001-07-03

    申请号：US09620667

    申请日：2000-07-20

    申请人： John Morgan Whitney ,  Gary Charles Davis ,  Anthony Carroll Snowden

    发明人： John Morgan Whitney ,  Gary Charles Davis ,  Anthony Carroll Snowden

    IPC分类号： C08G6302

    CPC分类号： C08G63/64 ,  C08G64/06

    摘要： Novel phenolic compounds are disclosed which bear at least two functional groups, at least one of which is a phenolic moiety. In one of its aspects the invention relates to phenolic compounds which may be derived from naturally occurring essential oils such as citronella oil. Polymers derived from novel phenolic compounds are also disclosed. In one embodiment polycarbonates and polyestercarbonates are made through copolymerization of novel phenolic compounds with at least one dihydric phenol and a carbonate precursor under reactive conditions.

    摘要翻译： 公开了新的酚类化合物，其具有至少两个官能团，其中至少一个是酚部分。 在其一个方面，本发明涉及可衍生自天然存在的精油如香茅油的酚类化合物。 还公开了衍生自新型酚类化合物的聚合物。 在一个实施方案中，通过在反应条件下将新型酚类化合物与至少一种二元酚和碳酸酯前体共聚制备聚碳酸酯和聚酯碳酸酯。