公开(公告)号：DE19942299A1

公开(公告)日：2001-03-08

申请号：DE19942299

申请日：1999-09-04

Applicant: BASF AG

Inventor： STAMM ARMIN ,  KNEUPER HEINZ-JOSEF ,  THIL LUCIEN ,  HENKELMANN JOCHEM

IPC: C07C263/10 ,  C07C265/08 ,  C07C265/10 ,  C07C265/12 ,  C07B43/10

Abstract: The invention relates to a method for producing aliphatic, cycloaliphatic, araliphatic and aromatic monoisocyanates and oligoisocyanates by phosgenating the corresponding primary amines at normal pressure. The inventive method is characterized in that: a) a catalytic quantity of a monoisocyanate (isocyanate a) is placed in an inert solvent with phosgene; b) the primary amine is added, and; c) the reaction mixture obtained thereby is reacted with phosgene.

公开(公告)号：DE19812095A1

公开(公告)日：1999-09-23

申请号：DE19812095

申请日：1998-03-19

Applicant: BASF AG

Inventor： STAMM ARMIN ,  HENKELMANN JOCHEM

IPC: C07B39/00 ,  C07C17/00 ,  C07C17/18 ,  C07C21/04 ,  C07C23/10 ,  C07C25/28 ,  C07B35/00 ,  C07C22/00 ,  C07C22/04

Abstract: Chlorination of ketones (I) , except cyclopropyl methyl ketone, which, apart from the carbonyl group, are inert towards triarylphosphine dichlorides, is carried out with a chlorinating agent in the presence of 0.1-10 mole-% triarylphosphine oxide (II) w.r.t. (I).

公开(公告)号：CA2268755A1

公开(公告)日：1998-08-20

申请号：CA2268755

申请日：1998-02-04

Applicant: BASF AG

Inventor： WEIGUNY SABINE ,  UTECHT JENS ,  NIESSNER MANFRED ,  LORENCAK PRIMOZ ,  STAMM ARMIN

IPC: C08G73/02 ,  C08F8/00 ,  D21H17/34 ,  D21H21/10 ,  D21H21/18 ,  D21H21/20

Abstract: The invention relates to a method for producing polymers containing carbamate units, wherein polyethylene imines or polymers containing vinyl amine units of formula (III) in which R1 = H or C1-C6-alkyl are made to react with halogen formic acid esters. The invention also relates to the use of the polyethylene imines containing carbamate groups thus obtained or polymers containing vinyl carbamate units as retention agents, dehydrating agents, flocculants and fixing agents in the production of paper, as a protective colloid for the production of aqueous alkyl diketene dispersions and as a dispersing agent for the production of accumulated aqueous filling material slurries.

公开(公告)号：HU228486B1

公开(公告)日：2013-03-28

申请号：HU0202604

申请日：2000-08-31

Applicant: BASF AG

Inventor： BUSCH RALPH ,  KNEUPER HEINZ-JOSEF ,  WEBER THEODOR ,  MUELLER WINFRIED ,  STAMM ARMIN ,  HENKELMANN JOCHEM

IPC: C07C51/64 ,  C07B61/00 ,  C07C51/00 ,  C07C53/38 ,  C07C53/42 ,  C07C57/64 ,  C07C57/66

Abstract: Process for the purification of carbonyl chlorides which have been prepared by reacting carboxylic acids with phosgene or thionyl chloride in the presence of a catalyst adduct, in which the carbonyl chlorides are treated with a hydrohalide of carboxamides of the formula (I)in which R is hydrogen or C1- to C3-alkyl; R and R independently of one another are C1- to C4-alkyl, or R and R together are a C4- or C5-alkylene chain, and the carbonyl chloride purified in this way is isolated by separation off from the carboxamide hydrohalide phase.

公开(公告)号：AU2006245816B2

公开(公告)日：2011-04-14

申请号：AU2006245816

申请日：2006-05-02

Applicant: BASF AG

Inventor： BRAUN GEROLD ,  STAMM ARMIN ,  WIRSING FRIEDRICH ,  OFTRING ALFRED ,  BALDENIUS KAI-UWE

IPC: C07C227/26 ,  C07C229/16

Abstract: The invention relates to a process for preparing low-by-product, light-color methylglycine-N,N-diacetic acid tri(alkali metal) salt by alkaline hydrolysis of methylglycinediacetonitrile (MGDN), comprising the steps in the sequence (a) to (f): (a) mixing of MGDN with aqueous alkali at a temperature of ≦̸30° C.; (b) allowing the aqueous alkaline MGDN suspension to react at a temperature in the range from 10 to 30° C. over a period of from 0.1 to 10 h to form a solution; (c) allowing the solution from step (b) to react at a temperature in the range from 30 to 40° C. over a period of from 0.1 to 10 h; (d) optionally allowing the solution from step (c) to react at a temperature in the range from 50 to 80° C. over a period of from 0.5 to 2 h; (e) optionally allowing the solution from step (c) or (d) to react at a temperature in the range from 110 to 200° C. over a period of from 5 to 60 min; (f) hydrolysis and removal of ammonia of the solution obtained in step (c), (d) or (e) by stripping at a temperature of from 90 to 105° C.

公开(公告)号：NO20075532L

公开(公告)日：2008-02-04

申请号：NO20075532

申请日：2007-11-02

Applicant: BASF AG

Inventor： OFTRING ALFRED ,  BRAUN GEROLD ,  WIRSING FRIEDRICH ,  STAMM ARMIN ,  KAI-UWE BALDENIUS

IPC: C07C227/26

Abstract: The invention relates to a process for preparing low-by-product, light-color methylglycine-N,N-diacetic acid tri(alkali metal) salt by alkaline hydrolysis of methylglycinediacetonitrile (MGDN), comprising the steps in the sequence (a) to (f): (a) mixing of MGDN with aqueous alkali at a temperature of ≦̸30° C.; (b) allowing the aqueous alkaline MGDN suspension to react at a temperature in the range from 10 to 30° C. over a period of from 0.1 to 10 h to form a solution; (c) allowing the solution from step (b) to react at a temperature in the range from 30 to 40° C. over a period of from 0.1 to 10 h; (d) optionally allowing the solution from step (c) to react at a temperature in the range from 50 to 80° C. over a period of from 0.5 to 2 h; (e) optionally allowing the solution from step (c) or (d) to react at a temperature in the range from 110 to 200° C. over a period of from 5 to 60 min; (f) hydrolysis and removal of ammonia of the solution obtained in step (c), (d) or (e) by stripping at a temperature of from 90 to 105° C.

公开(公告)号：MX2007013702A

公开(公告)日：2008-01-21

申请号：MX2007013702

申请日：2006-05-02

Applicant: BASF AG

Inventor： STAMM ARMIN ,  BALDENIUS KAI-UWE ,  OFTRING ALFRED ,  BRAUN GEROLD ,  WIRSING FRIEDRICH

IPC: C07C227/26 ,  C07C229/16

Abstract: La invencion se relaciona con un metodo para producir una sal de metal trialcalino de acido metilglicina-N,N-dietanoico de color claro con un bajo contenido de producto secundario, mediante la hidrolisis alcalina de diacetonitrilo de metilglicina, el metodo comprende pasos que se llevan a cabo en el orden (a) a (f): (a) mezclado del diacetonitrilo de metilglicina con una lejia de alcali acuoso a una temperatura de = 30 degree C; (b) la suspension de diacetonitrilo de metilglicina alcalina acuosa luego se hace reaccionar a una temperatura que varia entre 10 y 30 degree C durante un periodo de 0.1 a 10 horas, para formar una solucion; (c) la solucion obtenida en el paso (b) luego se hace reaccionar a una temperatura que varia entre 30 y 40 degree C durante un periodo de 0.1 a 10 horas; (d) opcionalmente la solucion obtenida en el paso (c) se hace reaccionar a una temperatura que varia entre 50 y 80 degree C durante un periodo de entre 0.5 y 2 h; (e) opcionalmente la solucion obtenida en el paso (c) o (d) se hace reaccionar a una temperatura que varia entre 110 y 200 degree C durante un periodo de entre 5 y 60 minutos; (f) hidrolisis y aislamiento de amoniaco de la solucion obtenida en el paso (c), (d) o (e) separando a una temperatura de entre 90 y 105 degree C.

公开(公告)号：ES2279577T3

公开(公告)日：2007-08-16

申请号：ES98932150

申请日：1998-06-10

Applicant: BASF AG

Inventor： STAMM ARMIN ,  JULIUS MANFRED ,  KINDLER ALOIS ,  HENNINGSEN MICHAEL ,  BOTZEM JORG

IPC: C07D233/60 ,  C07D233/56 ,  C07D233/80

Abstract: La invención se refiere a carbonildiimidazoles que tienen la fórmula general (Ia), (Ib), (Ic) o sus mezclas. En estas fórmulas R{sup,1} representa un radical alquilo C{sub,1}-C{sub,4} y R{sup,2} es un hidrógeno o un radical metilo. La invención también se refiere a los ésteres tercbtilo derivados de estos carbonildiimidazoles.

公开(公告)号：DE50107832D1

公开(公告)日：2005-12-01

申请号：DE50107832

申请日：2001-02-28

Applicant: BASF AG

Inventor： STAMM ARMIN ,  KNEUPER HEINZ-JOSEF ,  HENKELMANN JOCHEM ,  WEBER THEODOR ,  BUSCH RALPH

IPC: C07C51/58 ,  C07B61/00 ,  C07C51/60 ,  C07C55/40 ,  C07C53/50

Abstract: The invention relates to a method for producing chlorocarboxylic acid chlorides of formula (I), wherein R and R , independently from one another, mean a hydrogen atom, an organic radical containing carbon, a halogen, a nitro or cyano group and Y means an alkylene chain having 1 to 10 carbon atoms in the chain which is unsubstituted or is substituted by organic radicals that contain carbon, by halogen, nitro and/or cyano groups, whereby the alkylene chain can be interrupted by an ether-, thioether-, tertiary amino- or keto group, whereby the organic radicals of Y and/or R and/or R can be connected to one another and thereby form a non-aromatic system, whereby said radicals contain carbon, by converting a lactone of formula (II), wherein R , R and Y have the aforementioned meanings, using a hydrogen chloride and phosgene in the presence of a catalyst. Hydrogen chloride is added before and/or while phosgene is added. The hydrogen chloride is only introduced at a temperature of at least 60 DEG C. A pyridine compound is used as the catalyst.

公开(公告)号：HU224531B1

公开(公告)日：2005-10-28

申请号：HU0104207

申请日：1999-10-29

Applicant: BASF AG

Inventor： STAMM ARMIN ,  HENKELMANN JOCHEM

IPC: C07C51/60 ,  C07C53/42 ,  C07C53/50

Abstract: The invention relates to a process for the preparation of acid chlorides by reaction of carboxylic acids, carboxylic anhydrides, cyclic carboxylic esters or sulfonic acids with phosgene in the presence of a catalytic amount of a compound from the group consisting of N,N,N',N'-tetrasubstituted amidinium halides (I), N,N,N'-trisubstituted amidinium hydrohalides (II) and N,N,N'-trisubstituted amidines (III).