公开(公告)号：US5773491A

公开(公告)日：1998-06-30

申请号：US612110

申请日：1996-03-07

Applicant: Wolfgang Ebert ,  Ralf Hufen ,  Ru digerart ,  Gerhard Fennhoff

Inventor： Wolfgang Ebert ,  Ralf Hufen ,  Ru digerart ,  Gerhard Fennhoff

IPC: C08K5/06 ,  C08K5/00 ,  C08K5/36 ,  C08K5/372 ,  C08K5/46 ,  C08L69/00 ,  C08G64/42 ,  B29K69/00

CPC classification number: C08K5/46 ,  C08L69/00

Abstract: 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.

Abstract translation: 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

Applicant: Wilfried Haese ,  Ralf Pakull ,  Gerhard Fennhoff ,  Jurgen Kirsch

Inventor： Wilfried Haese ,  Ralf Pakull ,  Gerhard Fennhoff ,  Jurgen Kirsch

IPC: C08G63/64 ,  C08G64/00 ,  C08G64/16 ,  C08G64/20 ,  C08G64/28

CPC classification number: C08G64/1608 ,  C08G63/64

Abstract: 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.

Abstract translation: 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

Applicant: Gerhard Fennhoff ,  Uwe Westeppe ,  Werner Nouvertne ,  Karsten-Josef Idel ,  Edgar Leitz ,  Ulrich Grigo

Inventor： Gerhard Fennhoff ,  Uwe Westeppe ,  Werner Nouvertne ,  Karsten-Josef Idel ,  Edgar Leitz ,  Ulrich Grigo

IPC: C08F8/14 ,  C08F12/08 ,  C08F212/00 ,  C08L101/00

CPC classification number: C08F8/14 ,  C08F2810/40

Abstract: 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.

Abstract translation: 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

Applicant: Gerhard Fennhoff ,  Wolfgang Jakob ,  Manfred Ehlert ,  Dieter Freitag

Inventor： Gerhard Fennhoff ,  Wolfgang Jakob ,  Manfred Ehlert ,  Dieter Freitag

IPC: B09B3/00 ,  B29B13/10 ,  B29B17/02 ,  B29B17/04 ,  B29K69/00 ,  C08J11/06 ,  C08L67/00 ,  C08L67/02 ,  C08L69/00 ,  G11B7/26

CPC classification number: C08J11/06 ,  B29B13/10 ,  B29B17/02 ,  B29K2067/00 ,  B29K2069/00 ,  B29K2705/00 ,  B29L2009/005 ,  B29L2011/0016 ,  B29L2017/005 ,  C08J2369/00 ,  Y02W30/622 ,  Y02W30/701

Abstract: 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.

Abstract translation: 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：US06723885B1

公开(公告)日：2004-04-20

申请号：US10129757

申请日：2002-08-26

Applicant: Frieder Heydenreich ,  Michael Prein ,  Michael Bödiger ,  Rainer Neumann ,  Gerhard Fennhoff ,  Johan Vaes

Inventor： Frieder Heydenreich ,  Michael Prein ,  Michael Bödiger ,  Rainer Neumann ,  Gerhard Fennhoff ,  Johan Vaes

IPC: C07C3916

CPC classification number: C07C37/685 ,  C07C37/74 ,  C07C37/84 ,  C07C39/16

Abstract: 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.

Abstract translation: 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：US06723881B1

公开(公告)日：2004-04-20

申请号：US10130373

申请日：2002-08-28

Applicant: Michael Bödiger ,  Rainer Neumann ,  Frieder Heydenreich ,  Michael Prein ,  Gerhard Fennhoff ,  Ulrich Schnegg ,  Rudolf Wagner ,  Wolfgang Wambach ,  Reinhold Klipper

Inventor： Michael Bödiger ,  Rainer Neumann ,  Frieder Heydenreich ,  Michael Prein ,  Gerhard Fennhoff ,  Ulrich Schnegg ,  Rudolf Wagner ,  Wolfgang Wambach ,  Reinhold Klipper

IPC: C07C3912

CPC classification number: B01J31/08 ,  B01J37/06 ,  B01J2231/347 ,  C07C37/20 ,  C07C39/16

Abstract: Monodisperse cation-exchangers and anon-exchangers are conditioned by a process and thereafter used as catalysts and for the production of bisphenols.

Abstract translation: 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：US06288284B1

公开(公告)日：2001-09-11

申请号：US09581441

申请日：2000-07-03

Applicant: Rob Eek ,  Kaspar Hallenberger ,  Christine Mendoza-Frohn ,  Georg Ronge ,  Gerhard Fennhoff ,  Domien Sluyts ,  Werner Verhoeven

Inventor： Rob Eek ,  Kaspar Hallenberger ,  Christine Mendoza-Frohn ,  Georg Ronge ,  Gerhard Fennhoff ,  Domien Sluyts ,  Werner Verhoeven

IPC: C07C3916

CPC classification number: C07C37/20 ,  Y02P20/52 ,  C07C39/16

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US06191316B1

公开(公告)日：2001-02-20

申请号：US09423764

申请日：1999-11-12

Applicant: Gerhard Fennhoff ,  Hans-Josef Buysch ,  Gerd Fengler

Inventor： Gerhard Fennhoff ,  Hans-Josef Buysch ,  Gerd Fengler

IPC: C07C3912

CPC classification number: C07C39/04 ,  Y02P20/127

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US5780690A

公开(公告)日：1998-07-14

申请号：US831543

申请日：1997-04-08

Applicant: Klaus Berg ,  Gerhard Fennhoff ,  Ralf Pakull ,  Hans-Josef Buysch ,  Bernhard Wehrle ,  Alfred Eitel ,  Claus Wulff ,  Jurgen Kirsch

Inventor： Klaus Berg ,  Gerhard Fennhoff ,  Ralf Pakull ,  Hans-Josef Buysch ,  Bernhard Wehrle ,  Alfred Eitel ,  Claus Wulff ,  Jurgen Kirsch

IPC: C07C37/20

CPC classification number: C07C37/20

Abstract: The invention relates to a process for the synthesis of bis-(4-hydroxyphenyl)-alkanes on ion-exchange resins or mixtures of ion-exchange resins which are modified with alkyl-SH groups, wherein the monophenols and carbonyl compounds to be used have first been purified to remove substances which can transfer alkyl groups.

Abstract translation: 本发明涉及在离子交换树脂上合成双 - （4-羟基苯基） - 烷烃的方法或用烷基-SH基团改性的离子交换树脂的混合物，其中所用的单酚和羰基化合物具有 首先被纯化以除去可以转移烷基的物质。

公开(公告)号：US06307111B1

公开(公告)日：2001-10-23

申请号：US09423702

申请日：1999-11-12

Applicant: Gerhard Fennhoff ,  Hans-Josef Buysch ,  Gerd Fengler

Inventor： Gerhard Fennhoff ,  Hans-Josef Buysch ,  Gerd Fengler

IPC: C07C3916

CPC classification number: C07C37/84 ,  C07C37/20 ,  Y02P20/127 ,  C07C39/16

Abstract: The present invention relates to a process for the continuous production of dihydroxydiarylalkanes (bisphenols) by the reaction of fresh phenol, phenol and isoalkenylphenol from the decomposition of by-products, and ketone. In this process the bulk of the bisphenol is recovered from the reaction mixture by crystallization and the mother liquor obtained is freed from phenol by distillation. The phenol is returned to the reaction and the bottoms obtained during the distillation are decomposed in a reactive rectification after addition of a basic catalyst. The phenol and isoalkenylphenol leaving at the top are led back into the reaction; the bottoms from the first reactive column are acidified and in a second reactive rectification, in the presence of an acid catalyst, are further decomposed into phenol, which distils off and is reused in the reaction, and bottoms, which are disposed of.

Abstract translation: 本发明涉及通过副产物分解与酮的新鲜酚，苯酚和异烯基苯酚的反应连续制备二羟基二芳基烷烃（双酚）的方法。 在该方法中，通过结晶从反应混合物中回收大部分双酚，所得到的母液通过蒸馏除去苯酚。 苯酚回到反应中，并且在加入碱性催化剂之后，在蒸馏期间获得的塔底物在反应性精馏中分解。 离开顶部的苯酚和异烯基苯酚被引回到反应中; 在第一反应性柱的底部被酸化，并且在第二反应性精馏中，在酸催化剂的存在下，进一步分解成苯酚，其被蒸发并在反应中重新使用，并且被处理的塔底物。