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公开(公告)号:US06476273B2
公开(公告)日:2002-11-05
申请号:US09446475
申请日:1999-12-21
申请人: Annett König , Lothar Bunzel , Uwe Hucks
发明人: Annett König , Lothar Bunzel , Uwe Hucks
IPC分类号: C07F954
摘要: A process for preparing phosphonium phenolate is disclosed. The process entails a reaction of phosphonium halide with phenol in an aqueous alkaline solution at a temperature of 0 to 55° C. The molar ratio of phenol to phosphonium halide is between 2:1 to 10:1 and the pH of the solution is 9.5 to 11. An optional embodiment entails carrying out the reaction in the further presence of alcohol.
摘要翻译: 公开了一种制备酚酞的方法。 该方法需要在0至55℃的温度下在碱性水溶液中将卤化鏻与酚反应。苯酚与卤化鏻的摩尔比为2:1至10:1,溶液的pH为9.5 任选的实施方案需要在醇的进一步存在下进行反应。
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公开(公告)号:US06710153B2
公开(公告)日:2004-03-23
申请号:US10168166
申请日:2002-06-17
申请人: Lothar Bunzel , Uwe Hucks , Annett König , Silke Kratschmer
发明人: Lothar Bunzel , Uwe Hucks , Annett König , Silke Kratschmer
IPC分类号: C08G6400
摘要: A process for the production of phosphonium phenolates is disclosed. The process entails reacting a phosphonium halide and phenol in an aqueous alkaline solution. The phosphonium phenolate produced is separated from the synthesis mixture by crystallization
摘要翻译: 公开了一种生产苯酚鏻的方法。 该方法需要在碱性水溶液中使卤化鏻和苯酚反应。 通过结晶将生产的苯酚鏻与合成混合物分离
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公开(公告)号:US06307006B1
公开(公告)日:2001-10-23
申请号:US09445849
申请日:1999-12-14
申请人: Annett König , Lothar Bunzel , Uwe Hucks
发明人: Annett König , Lothar Bunzel , Uwe Hucks
IPC分类号: C08G6400
CPC分类号: C08G64/1616 , C08G64/30
摘要: A process of producing branched polycarbonates by melt transesterification from at least one diphenol, diaryl carbonate and a branching agent, and in the optional presence of a catalyst is disclosed. The process which is carried out at temperatures between 80 to 400° C. and at pressures between 1 and 0.01 mbar, entails using as branching agent at least one member selected from the group consisting of (i) a specifically structured aliphatic alcohol and (ii) the ether of (i) which is formed by self-condensation.
摘要翻译: 公开了通过熔融酯交换从至少一种二酚,碳酸二芳酯和支化剂生产支化聚碳酸酯的方法,以及任选的催化剂存在下的方法。 在80至400℃的温度和1至0.01毫巴的压力下进行的方法需要使用至少一种选自(i)特定结构的脂族醇和(ii) )通过自缩合形成的(i)的醚。
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公开(公告)号:US06262219B1
公开(公告)日:2001-07-17
申请号:US09446852
申请日:1999-12-28
申请人: Annett König , Uwe Hucks , Claus-Ludolf Schultz , Günther Jeromin
发明人: Annett König , Uwe Hucks , Claus-Ludolf Schultz , Günther Jeromin
IPC分类号: C08G6430
CPC分类号: C08G64/307
摘要: The present invention relates to a transesterification method for producing solvent-free polycarbonate, using N-alkyl-substituted piperidines or N-alkyl-substituted morpholines comprising C2-C12 N-alkyl substituents, preferably C2-C8 N-alkyl substituents, most preferably C2-C5 N-alkyl substituents, as catalysts.
摘要翻译: 本发明涉及使用N-烷基取代的哌啶或包含C 2 -C 12 N-烷基取代基的N-烷基取代的吗啉,优选C 2 -C 8 N-烷基取代基,最优选C 2 -C 5 N-烷基取代基,作为催化剂。
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公开(公告)号:US06740730B1
公开(公告)日:2004-05-25
申请号:US10031502
申请日:2002-01-15
申请人: Silke Kratschmer , Uwe Hucks , Lothar Bunzel
发明人: Silke Kratschmer , Uwe Hucks , Lothar Bunzel
IPC分类号: C08G6400
CPC分类号: C08G64/307 , C08G64/14
摘要: The invention relates to a novel polycarbonate and its use a material in the production of molded articles and semifinished products, especially for transparent articles such as data memories or radio compact discs, slabs, cellular sheets, films, housings, panes, especially panes for motor vehicles, diffusion glasses, but also for electrical applications or the constructions of houses.
摘要翻译: 本发明涉及一种新型聚碳酸酯及其在制造模制品和半成品中的材料,特别是用于透明制品如数据存储器或无线电光盘,板,蜂窝片,薄膜,壳体,窗格,尤其是用于电动机的窗格 车辆,扩散眼镜,还可用于电气应用或房屋建筑。
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公开(公告)号:US06596840B1
公开(公告)日:2003-07-22
申请号:US10031630
申请日:2002-01-15
申请人: Silke Kratschmer , Uwe Hucks , Lothar Bunzel
发明人: Silke Kratschmer , Uwe Hucks , Lothar Bunzel
IPC分类号: C08G6400
CPC分类号: C08G64/14 , C08G64/307
摘要: A process for the synthesis of polycarbonate is disclosed. The process entails reacting in the presence of at least one phosphonium salt as catalyst, at least one diphenol, at least one carbonic acid diester, and at least one alkyl group-substituted phenol chain terminator. The chain terminator is introduced in free form or as a transesterifiable compound under the conditions of the synthesis. The polycarbonate thus produced is suitable for preparing a variety of molded articles.
摘要翻译: 公开了一种合成聚碳酸酯的方法。 该方法需要在至少一种鏻盐作为催化剂,至少一种二酚,至少一种碳酸二酯和至少一个烷基取代的苯酚链终止剂存在下反应。 该链终止剂在合成条件下以游离形式或作为可酯交换化合物引入。 由此生产的聚碳酸酯适于制备各种模塑制品。
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公开(公告)号:US06835797B2
公开(公告)日:2004-12-28
申请号:US10103921
申请日:2002-03-22
IPC分类号: C08G6400
CPC分类号: C08G64/307
摘要: A continuous process for producing oligocarbonate is disclosed. The process entails in sequence the steps of a) reacting a dihydroxyaryl compound with a diaryl carbonate in the presence of a catalyst to obtain a melt and avoiding removal of released monohydroxyaryl compound and b) withdrawing the monohydroxyaryl compound by flash evaporation and c) heating the melt obtained under vacuum in an evaporator equipped with sump receiver and d) repeating at least once steps b) and then c) each at gradually increased temperatures and lowered pressures.
摘要翻译: 公开了连续生产低聚碳酸酯的方法。 该方法按照以下步骤进行:a)在催化剂存在下使二羟基芳基化合物与碳酸二芳基酯反应,得到熔体,避免去除脱离的单羟基芳基化合物,和b)通过闪蒸蒸发除去单羟基芳基化合物,和c)加热 在装有贮槽接收器的蒸发器中在真空下获得熔体,d)重复至少一次步骤b),然后c)逐渐升高温度和降低的压力。
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公开(公告)号:US06630563B2
公开(公告)日:2003-10-07
申请号:US10127786
申请日:2002-04-22
申请人: Uwe Hucks , Thomas König , Silke Kratschmer , Eike Schulz Van Endert , Klaus Schröder , Hans-Peter Hoffmann
发明人: Uwe Hucks , Thomas König , Silke Kratschmer , Eike Schulz Van Endert , Klaus Schröder , Hans-Peter Hoffmann
IPC分类号: C08G6400
CPC分类号: B01J19/006 , B01J3/006 , B01J19/02 , B01J19/18 , B01J19/1862 , B01J2219/00092 , B01J2219/00094 , B01J2219/00182 , B01J2219/00779 , B01J2219/0277 , B01J2219/182 , C08G64/205 , Y10T428/31504
摘要: A process for producing polycarbonate is disclosed. The process entails obtaining an oligocarbonate produced by transesterification of diaryl carbonate with dihydroxyaryl compound in the presence of catalysts and introducing the oliogocarbonate into a reactor that enables continuous formation of free films at a rate higher than 10. The reactor including a horizontal cylinder equipped with a heating jacket, at least one vapor outlet, a feed nozzle an outlet nozzle, a rotatable cylindrical basket having a cylindrical perforated wall and annular discs positioned at intervals around the periphery of said basket and along the length thereof, and means for rotating said basket, the interior of said basket including no central shaft, the diameter of the cylindrical basket corresponding to about ⅔ of the diameter of the horizontal cylinder, and said discs being formed of perforated sheet metal.
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9.
公开(公告)号:US5652313A
公开(公告)日:1997-07-29
申请号:US594688
申请日:1996-01-31
申请人: Steffen Kuhling , Uwe Hucks , Gottfried Zaby , Claus Wulff
发明人: Steffen Kuhling , Uwe Hucks , Gottfried Zaby , Claus Wulff
CPC分类号: C08G64/307
摘要: The present invention provides a two-stage melt process for the manufacture of thermoplastic, solvent-free, low-branched polycarbonates with low OH end-group contents with the use of ammonium or phophonium catalysts in the first stage and alkali and alkaline earth catalysts in the second stage.
摘要翻译: 本发明提供了一种两阶段熔融法,用于制造具有低OH末端含量的热塑性无溶剂的低支化聚碳酸酯,在第一阶段使用铵或磷鎓催化剂,碱和碱土金属催化剂在 第二阶段
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公开(公告)号:US4654411A
公开(公告)日:1987-03-31
申请号:US771644
申请日:1985-09-03
申请人: Volker Serini , Bernhard Schulte , Werner Waldenrath , Dieter Freitag , Uwe Hucks , Joachim Wank , Hans-Leo Weber
发明人: Volker Serini , Bernhard Schulte , Werner Waldenrath , Dieter Freitag , Uwe Hucks , Joachim Wank , Hans-Leo Weber
CPC分类号: C08G63/79 , C08G63/193
摘要: Polyesters having at least 90%, by weight, of recurrent structural units corresponding to the following formula: ##STR1## and characterised by a relative viscosity.eta..sub.rel of from 1.6 to 4.5 (determined at 25.degree. C. in CH.sub.2 Cl.sub.2, c=5 g/l) are suitable for the production of films having highly advantageous performance characteristics, in particular high heat resistance.
摘要翻译: 具有至少90重量%的对应于下式的复发结构单元的聚酯:其特征在于相对粘度ηrel为1.6至4.5(在25℃下在CH 2 Cl 2中测定,c = 5g / l)适用于生产具有非常有利的性能特性,特别是高耐热性的膜。
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