-
公开(公告)号:US06723881B1
公开(公告)日:2004-04-20
申请号:US10130373
申请日:2002-08-28
申请人: Michael Bödiger , Rainer Neumann , Frieder Heydenreich , Michael Prein , Gerhard Fennhoff , Ulrich Schnegg , Rudolf Wagner , Wolfgang Wambach , Reinhold Klipper
发明人: Michael Bödiger , Rainer Neumann , Frieder Heydenreich , Michael Prein , Gerhard Fennhoff , Ulrich Schnegg , Rudolf Wagner , Wolfgang Wambach , Reinhold Klipper
IPC分类号: C07C3912
CPC分类号: B01J31/08 , B01J37/06 , B01J2231/347 , C07C37/20 , C07C39/16
摘要: Monodisperse cation-exchangers and anon-exchangers are conditioned by a process and thereafter used as catalysts and for the production of bisphenols.
摘要翻译: 单分散阳离子交换剂和阴离子交换剂通过一种方法调理,然后用作催化剂和生产双酚。
-
公开(公告)号:US06723885B1
公开(公告)日:2004-04-20
申请号:US10129757
申请日:2002-08-26
申请人: Frieder Heydenreich , Michael Prein , Michael Bödiger , Rainer Neumann , Gerhard Fennhoff , Johan Vaes
发明人: Frieder Heydenreich , Michael Prein , Michael Bödiger , Rainer Neumann , Gerhard Fennhoff , Johan Vaes
IPC分类号: C07C3916
CPC分类号: C07C37/685 , C07C37/74 , C07C37/84 , C07C39/16
摘要: A process for the production of 2,2-bis(4-hydroxyphenyl)propane (BPA) is disclosed. The process that entails reacting acetone with phenol in the presence of cross-linked sulfonated polystyrene resins is characterised in that BPA is separated from the reaction solution downstream of the reaction unit by means of a multi-stage vacuum distillation and a subsequent single- or multi-stage layer crystallisation. The by-product stream with accumulated by-products is returned downstream of the reaction unit.
摘要翻译: 公开了一种生产2,2-双(4-羟基苯基)丙烷(BPA)的方法。 在交联磺化聚苯乙烯树脂存在下使丙酮与苯酚反应的过程的特征在于通过多级真空蒸馏和后续的单一或多次反应将BPA从反应单元下游的反应溶液中分离出来 阶段结晶。 具有积累的副产物的副产物流返回到反应单元的下游。
-
公开(公告)号:US06316678B1
公开(公告)日:2001-11-13
申请号:US09786146
申请日:2001-02-28
申请人: Steffen Kühling , Rolf Lanze , Rainer Neumann , Frieder Heydenreich , Tony van Osselaer , Gerhard Fennhoff
发明人: Steffen Kühling , Rolf Lanze , Rainer Neumann , Frieder Heydenreich , Tony van Osselaer , Gerhard Fennhoff
IPC分类号: C07C3768
CPC分类号: C07C39/16
摘要: The present invention relates to a process for producing bis(4-hydroxy-aryl)alkanes of high purity from addition products of bis(4-hydroxy-aryl)alkanes and aromatic hydroxy compounds which are obtained by the acid-catalysed reaction of the aromatic hydroxy compounds with ketones.
摘要翻译: 本发明涉及一种由双(4-羟基 - 芳基)烷烃和芳族羟基化合物的加成产物生产高纯度的双(4-羟基 - 芳基)烷烃的方法,该方法是通过芳族化合物的酸催化反应 羟基化合物与酮类。
-
公开(公告)号:US06211417B1
公开(公告)日:2001-04-03
申请号:US09341506
申请日:1999-07-12
IPC分类号: C07C3916
摘要: The present invention relates to a process for the production of bis-(4-hydroxyaryl)-alkanes by a heterogeneously catalyzed reaction of aromatic hydroxy compounds with ketones in at least two reactors connected in series, which, as the reaction progresses, are operated at higher temperatures, wherein the total quantity of ketone is divided between the individual reactors in such a manner that the higher is the temperature of the particular reactor, the smaller is the proportion per reactor, the highest possible reactor loading is maintained and the temperatures and temperature gradients are kept as low as possible.
摘要翻译: 本发明涉及通过芳族羟基化合物与至少两个串联连接的反应器中的酮的不均匀催化反应生产双 - (4-羟基芳基) - 烷烃的方法,其随着反应进行而在 较高的温度,其中酮的总量在单个反应器之间分开,使得特定反应器的温度越高,每个反应器的比例越小,保持最高可能的反应器负载和温度和温度 梯度保持尽可能低。
-
公开(公告)号:US5773491A
公开(公告)日:1998-06-30
申请号:US612110
申请日:1996-03-07
申请人: Wolfgang Ebert , Ralf Hufen , Ru digerart , Gerhard Fennhoff
发明人: Wolfgang Ebert , Ralf Hufen , Ru digerart , Gerhard Fennhoff
摘要: The object of the present invention is polycarbonate molding compositions containing polycarbonates, stabilizers of the general formula (I) R.sub.1 --X--CZ--Y--R.sub.2 and optionally polypropylene glycols. The object of the present invention is also use of these molding compositions to produce items for medical applications.
摘要翻译: 本发明的目的是含有聚碳酸酯,通式(I)R 1 -X-CZ-Y-R 2的稳定剂和任选的聚丙二醇的聚碳酸酯模塑组合物。 本发明的目的还是使用这些模制组合物来生产用于医疗应用的物品。
-
公开(公告)号:US5408027A
公开(公告)日:1995-04-18
申请号:US201438
申请日:1994-02-24
申请人: Wilfried Haese , Ralf Pakull , Gerhard Fennhoff , Jurgen Kirsch
发明人: Wilfried Haese , Ralf Pakull , Gerhard Fennhoff , Jurgen Kirsch
CPC分类号: C08G64/1608 , C08G63/64
摘要: A process for producing an aliphatic-aromatic polycarbonate is disclosed. The process comprise (A) reacting in an anhydrous neutral solvent (i) an oligocarbonate of diphenol with (ii) an aliphatic dicarboxylic acid, and (B) eliminating the hydrogen chloride and carbon dioxide by-products. The oligocarbonate of diphenol is characterized in that it is terminated by chlorocarbonic acid ester groups. The resins thus prepared are readily molded conventionally.
摘要翻译: 公开了一种生产脂族 - 芳族聚碳酸酯的方法。 该方法包括(A)在无水中性溶剂(i)中将二酚的低聚碳酸酯与(ii)脂族二羧酸反应,和(B)除去氯化氢和二氧化碳副产物。 二酚的低聚碳酸酯的特征在于它被氯碳酸酯基团封端。 如此制备的树脂通常容易地成型。
-
公开(公告)号:US5162411A
公开(公告)日:1992-11-10
申请号:US728455
申请日:1991-07-11
申请人: Gerhard Fennhoff , Uwe Westeppe , Werner Nouvertne , Karsten-Josef Idel , Edgar Leitz , Ulrich Grigo
发明人: Gerhard Fennhoff , Uwe Westeppe , Werner Nouvertne , Karsten-Josef Idel , Edgar Leitz , Ulrich Grigo
IPC分类号: C08F8/14 , C08F12/08 , C08F212/00 , C08L101/00
CPC分类号: C08F8/14 , C08F2810/40
摘要: A carbonate corresponding to formula (I) ##STR1## in which R is aromatically bound polystyrene moiety and --O--D--O-- is a diphenolate moiety in which --D-- is a divalent group containing 6 to 30 carbon atoms and r is 0 or 1 is disclosed. The carbonate is useful as a flow aid for thermoplastic molding compositions.
摘要翻译: 对应于式(I)的碳酸酯其中R是芳香结合的聚苯乙烯部分和-ODO-是二酚盐部分,其中-D-是含有6至30个碳原子的二价基团,r是0或 1。 碳酸酯可用作热塑性模塑组合物的流动助剂。
-
公开(公告)号:US5151452A
公开(公告)日:1992-09-29
申请号:US761209
申请日:1991-09-17
IPC分类号: B09B3/00 , B29B13/10 , B29B17/02 , B29B17/04 , B29K69/00 , C08J11/06 , C08L67/00 , C08L67/02 , C08L69/00 , G11B7/26
CPC分类号: C08J11/06 , B29B13/10 , B29B17/02 , B29K2067/00 , B29K2069/00 , B29K2705/00 , B29L2009/005 , B29L2011/0016 , B29L2017/005 , C08J2369/00 , Y02W30/622 , Y02W30/701
摘要: A process is disclosed for the purification of lacquer-and optionally dye and metal- containing waste of thermoplastic aromatic polycarbonates and/or thermoplastic aromatic polyester carbonates. The waste which result upon the production of moldings, such as audio compact discs, lenses for spectacles or head-lamp reflectors is processed in accordance with the invention to yield useful resin suitable for reprocessing as a molding resin. In accordance with the process, the waste is first size-reduced and then heated with acid to the reflux temperature while stirring. After a water wash there is followed a drying step. In accordance with the process, in instances where the waste does not originally contain metal, the metal in powder form is added before the acid treatment.
摘要翻译: 公开了一种用于净化热塑性芳族聚碳酸酯和/或热塑性芳族聚酯碳酸酯的漆和任选的染料和含金属废物的方法。 根据本发明加工生产模制品的废物,例如音频光盘,眼镜镜片或头灯反射器,以产生适于作为模塑树脂再加工的有用树脂。 按照该方法,首先将废物减量化,然后在搅拌下用酸加热至回流温度。 在水洗后,进行干燥步骤。 根据该方法,在废物最初不含有金属的情况下,粉末形式的金属在酸处理之前加入。
-
公开(公告)号:US06288284B1
公开(公告)日:2001-09-11
申请号:US09581441
申请日:2000-07-03
申请人: Rob Eek , Kaspar Hallenberger , Christine Mendoza-Frohn , Georg Ronge , Gerhard Fennhoff , Domien Sluyts , Werner Verhoeven
发明人: Rob Eek , Kaspar Hallenberger , Christine Mendoza-Frohn , Georg Ronge , Gerhard Fennhoff , Domien Sluyts , Werner Verhoeven
IPC分类号: C07C3916
摘要: The present invention relates to a process for the production of bis(4-hydroxyaryl)alkanes by an acid-catalyzed reaction between aromatic hydroxy compounds and ketones, in which the temperature, ketone content and water content of a liquid reaction mixture are adjusted by means of a suitably composed gas phase.
摘要翻译: 本发明涉及通过芳族羟基化合物和酮之间的酸催化反应制备双(4-羟基芳基)烷烃的方法,其中通过手段调节液体反应混合物的温度,酮含量和水含量 的适当组成的气相。
-
10.
公开(公告)号:US06191316B1
公开(公告)日:2001-02-20
申请号:US09423764
申请日:1999-11-12
IPC分类号: C07C3912
CPC分类号: C07C39/04 , Y02P20/127
摘要: The present invention relates to a process for working up the residual mother liquors from the production of dihydroxydiarylalkanes (bisphenols) discharged from the process once the bisphenol has been separated.
摘要翻译: 本发明涉及一旦一旦双酚被分离,则从生产二氯二芳基烷烃(双酚)中除去残留母液的方法。
-
-
-
-
-
-
-
-
-