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公开(公告)号:US5959160A
公开(公告)日:1999-09-28
申请号:US819418
申请日:1997-03-17
IPC分类号: C07C37/64 , C07C37/72 , C07C39/15 , C07C39/235 , C07C37/68
CPC分类号: C07C37/72
摘要: The invention relates to a process for the purification of p,p-bisphenolate solutions such as are obtained in the production of bisphenolates from soda lye and bisphenols by extraction.
摘要翻译: 本发明涉及纯化p,p-双酚盐溶液的方法,例如通过萃取从苏打碱和双酚生产双酚盐得到的。
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公开(公告)号:US5785823A
公开(公告)日:1998-07-28
申请号:US691402
申请日:1996-08-02
申请人: Kurt-Peter Meurer , Tony Van Osselaer , Werner Verhoeven , Johan Vaes , Ignace Hooftman , Willy Van Herck , Claus Wulff , Jurgen Hinz , Alfred Eitel , Kaspar Hallenberger
发明人: Kurt-Peter Meurer , Tony Van Osselaer , Werner Verhoeven , Johan Vaes , Ignace Hooftman , Willy Van Herck , Claus Wulff , Jurgen Hinz , Alfred Eitel , Kaspar Hallenberger
CPC分类号: C07C37/74 , C07C37/685
摘要: A process for preparing bisphenol A which has a purity of at least 99.95 wt. % of p,p-bisphenol A (BPA). Thermally stable and colour-stable BPA purified in accordance with the invention produces improved thermal and colour stability and improved optical transparency in polymers such as e.g. polycarbonates prepared therefrom.
摘要翻译: 一种制备双酚A的方法,其纯度至少为99.95wt。 %的p,p-双酚A(BPA)。 根据本发明纯化的热稳定和色稳定的BPA产生改善的热和颜色稳定性并改善聚合物中的光学透明度,例如聚合物。 由其制备的聚碳酸酯。
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公开(公告)号:US5756860A
公开(公告)日:1998-05-26
申请号:US691390
申请日:1996-08-02
申请人: Kurt-Peter Meurer , Tony Van Osselaer , Claus Wulff , Jurgen Hinz
发明人: Kurt-Peter Meurer , Tony Van Osselaer , Claus Wulff , Jurgen Hinz
CPC分类号: C07C39/17 , C07C37/84 , C07C39/16 , C07C2101/14
摘要: The invention relates to the preparation of a transparent crystalline adduct consisting of bisphenol A (75 parts) and bisphenol TMC (25 parts), which has a melting point of 144.degree. C. which is below the melting points of the pure starting compounds bisphenol A (157.degree. C.) and bisphenol TMC (208.degree. C.).
摘要翻译: 本发明涉及由双酚A(75份)和双酚TMC(25份)组成的透明结晶加合物的制备,其熔点为144℃,低于纯起始化合物双酚A的熔点 (157℃)和双酚TMC(208℃)。
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4.
公开(公告)号:US5696295A
公开(公告)日:1997-12-09
申请号:US418583
申请日:1995-04-06
申请人: Claus Wulff , Kaspar Hallenberger , Heinrich Steude , Kurt-Peter Meurer , Tony van Osselaer , Jurgen Hinz , Frank Quaeyhaegens , Johan Vaes , Ignace Hooftman
发明人: Claus Wulff , Kaspar Hallenberger , Heinrich Steude , Kurt-Peter Meurer , Tony van Osselaer , Jurgen Hinz , Frank Quaeyhaegens , Johan Vaes , Ignace Hooftman
摘要: The invention relates to a method for the purification by distillation of p,p-bisphenol A from the melt. The p,p-bisphenol A melt thus obtained is highly heat-stable, stable in storage and colour-stable, is free from high-boiling components and no longer contains any surface-active or non-distillable metal, salt, acid or polymer components and no sulphur-containing components; o,p-BPA and phenol are removed and the low-boiling components are scarcely detectable.
摘要翻译: 本发明涉及通过蒸馏从熔体中蒸馏出p,p双酚A的方法。 由此获得的p,p双酚A熔体是高度稳定的,在储存和稳定的颜色下稳定,不含高沸点组分,不再含有任何表面活性或不可蒸馏的金属,盐,酸或聚合物 组分,不含硫成分; o,p-BPA和苯酚,并且几乎不检测到低沸点成分。
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公开(公告)号:US5786445A
公开(公告)日:1998-07-28
申请号:US724931
申请日:1996-10-02
申请人: Claus Wulff , Gottfried Zaby , Thomas Bamberger , Klemens Kohlgruber , Hugo Obermann , Stefaan De Vos , Gabriel Denecker , Johan Vaes , Tony Van Osselaer
发明人: Claus Wulff , Gottfried Zaby , Thomas Bamberger , Klemens Kohlgruber , Hugo Obermann , Stefaan De Vos , Gabriel Denecker , Johan Vaes , Tony Van Osselaer
CPC分类号: B29B13/065 , F26B17/20 , F26B5/041
摘要: The invention relates to a process for drying polymeric powders and polymeric agglomerates, in particular thermoplastic aromatic polycarbonate or other thermoplastic polymers such as, for example, acrylonitrile-butadiene-styrene copolymer, in the melt, whereby thermoplastic polymeric powders or polymeric agglomerates containing water or solvent or both are freed from adhering moisture and contained solvent, accompanied by melting, in an apparatus provided with rotating baffles for cleaning the walls of the apparatus and for distribution and transport of the material being dried, by heat input through the walls or through the rotating baffles or both as well as by heat input as a result of shearing action. The process of drying and that of melting for the subsequent granulation are thereby combined.
摘要翻译: 本发明涉及在熔体中干燥聚合物粉末和聚合物附聚物,特别是热塑性芳族聚碳酸酯或其它热塑性聚合物例如丙烯腈 - 丁二烯 - 苯乙烯共聚物的方法,由此将含有水或聚合物的热塑性聚合物粉末或聚合物附聚物 溶剂或两者在具有用于清洁设备的壁的旋转挡板的设备中并且随着熔化而被包含溶剂并且包含溶剂,并且通过壁的热输入或通过壁的热输入以及用于分配和输送待干燥的材料 旋转挡板或两者以及作为剪切作用的结果的热输入。 由此组合干燥过程和熔化后续制粒。
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公开(公告)号:US5921089A
公开(公告)日:1999-07-13
申请号:US942613
申请日:1997-10-02
CPC分类号: C07C37/88
摘要: The transportation and storage of phenol is enhanced by additions of up to 70% by weight of acetone to liquid phenol.
摘要翻译: 通过向液体苯中加入高达70重量%的丙酮来增强苯的输送和储存。
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公开(公告)号:US5545764A
公开(公告)日:1996-08-13
申请号:US396613
申请日:1995-03-01
申请人: Klaus Berg , Claus Wulff , Georg Malamet , Alfred Eitel , Kurt P. Meurer , Tony van Osselaer , J urgen Hinz
发明人: Klaus Berg , Claus Wulff , Georg Malamet , Alfred Eitel , Kurt P. Meurer , Tony van Osselaer , J urgen Hinz
CPC分类号: C07C37/84 , C07C37/685
摘要: The present invention provides a process for the production of high purity bisphenol A by special in-process-crystallisation of bisphenol A/phenol adduct crystallisates.
摘要翻译: 本发明提供了通过双酚A /苯酚加合物结晶的特殊在工艺结晶生产高纯度双酚A的方法。
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公开(公告)号:US4912263A
公开(公告)日:1990-03-27
申请号:US230316
申请日:1988-08-09
申请人: Udo Rudolph , Claus Wulff , Jurgen Hinz , Norbert Bachem
发明人: Udo Rudolph , Claus Wulff , Jurgen Hinz , Norbert Bachem
IPC分类号: B01J31/08 , B01J31/10 , B01J37/00 , B01J39/20 , C07B61/00 , C07C27/00 , C07C37/20 , C07C39/16 , C07C67/00
CPC分类号: B01J31/10 , C07C37/20 , B01J2231/347 , Y02P20/52
摘要: This invention relates to an ionic exchanger modified with thiazolines, to its preparation and to its use for the preparation of condensation products, particularly bisphenols.
摘要翻译: 本发明涉及用噻唑啉改性的离子交换剂,其制备及其用于制备缩合产物,特别是双酚的用途。
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9.
公开(公告)号:US5726228A
公开(公告)日:1998-03-10
申请号:US759951
申请日:1996-12-03
申请人: Ralf Kaufmann , Wolfgang Ebert , Hartmut Lower , Jurgen Kadelka , Claus Wulff , Gottfried Zaby
发明人: Ralf Kaufmann , Wolfgang Ebert , Hartmut Lower , Jurgen Kadelka , Claus Wulff , Gottfried Zaby
CPC分类号: G11B7/2534 , C08K5/156
摘要: The present invention relates to the use of cyclic carbonates as demoulding agents for thermoplastic polycarbonates, and to the incorporation of these cyclic carbonates into the thermoplastic polycarbonates.
摘要翻译: 本发明涉及使用环状碳酸酯作为热塑性聚碳酸酯的脱模剂,以及将这些环状碳酸酯引入到热塑性聚碳酸酯中。
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公开(公告)号:US5627256A
公开(公告)日:1997-05-06
申请号:US570399
申请日:1995-12-11
CPC分类号: C08K5/50
摘要: The present invention relates to thermoplastic aromatic polycarbonates having a content of special aryl phosphines, to their preparation, and to their use in the light engineering sector and in optics.
摘要翻译: 本发明涉及具有特殊芳基膦含量的热塑性芳族聚碳酸酯,其制备方法及其在轻工程领域和光学领域的应用。
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