公开(公告)号：JP2000159742A

公开(公告)日：2000-06-13

申请号：JP33181799

申请日：1999-11-22

Applicant: BASF AG

Inventor： KLUGE MICHAEL DR ,  KESSEL KNUT ,  GREINDL THOMAS DR ,  BIEDERMANN NORBERT DR ,  SCHERR GUENTER DR ,  BOGENSTAETTER THOMAS DR

IPC: C07C273/18 ,  C07C273/00 ,  C07C275/70

Abstract: PROBLEM TO BE SOLVED: To obtain an O-alkyl isourea as an acid adduct salt in a high yield, if necessary, by dissolving and dispersing urea and an alkyl group donor in a diluent, followed by reacting them in a continuously operated reactor at a specific temperature. SOLUTION: An O-alkyl isourea shown by the formula (R1 is a 1-20C alkyl) is obtained as an acid adduct salt in a high yield, if necessary, by dissolving and dispersing (a) urea and (B) an alkyl group donor (e.g. dialkyl sulfate) in a diluent, followed by reacting them in a continuously operated reactor (e.g. continuously flowed column reactor and continuously stirred tank reactor) at 40-200 deg.C. It is preferable that an (A:B) molar ratio is (3:1)-(1:2). The diluent has a heat capacity which elevates the temperature of the reaction mixture maximally to 150 deg.oC or less upon performing a substantially adiabatic reaction by the heat of the reaction.

公开(公告)号：JP2000086616A

公开(公告)日：2000-03-28

申请号：JP25454399

申请日：1999-09-08

Applicant: BASF AG

Inventor： KESSEL KNUT DR ,  SCHERR GUENTER DR ,  KLUGE MICHAEL DR ,  BIEDERMANN NORBERT DR ,  GREINDL THOMAS DR ,  BOGENSTAETTER THOMAS DR ,  HAEHNLEIN WOLFGANG DR

IPC: C07C279/14 ,  C07C277/02 ,  C07C277/08

Abstract: PROBLEM TO BE SOLVED: To provide a simple and practicable method for producing creatine or creatine monohydrate without requiring great expenditures for measuring techniques or regulating techniques in regulating the value of pH using an inorganic acid or an organic acid. SOLUTION: The value of pH is regulated with carbonic acid in the case of a method for producing creatine or creatine monohydrate comprising reacting sodium sarcosinate or potassium sarcosinate with cyanamide at 20-150 deg.C temperature and 7.0-14.0 value of pH.

公开(公告)号：AT296856T

公开(公告)日：2005-06-15

申请号：AT00122572

申请日：2000-10-17

Applicant: BASF AG

Inventor： BIEDERMANN NORBERT DR ,  SCHERR GUENTER DR ,  JAECKH CHRISTOF DR ,  DECHER JAKOB ,  ANDRE VALERIE DR ,  SCHNURR WERNER DR ,  HENNIG INGOLF DR

IPC: C08L61/28 ,  C08L67/02 ,  C09D161/28 ,  C08G12/32

公开(公告)号：ES2241536T3

公开(公告)日：2005-11-01

申请号：ES00122572

申请日：2000-10-17

Applicant: BASF AG

Inventor： BIEDERMANN NORBERT DR ,  SCHERR GUNTER DR ,  JACKH CHRISTOF DR ,  DECHER JAKOB ,  ANDRE VALERIE DR ,  SCHNURR WERNER DR

IPC: C08L61/28 ,  C08L67/02 ,  C09D161/28 ,  C08G12/32

Abstract: Dispersiones acuosas de resina de melamina que contienen como fase discontinua una resina de melamina, que está estabilizada con una combinación constituida por un coloide protector catiónico y por un coloide protector aniónico.

公开(公告)号：ES2172968T3

公开(公告)日：2002-10-01

申请号：ES99117237

申请日：1999-09-02

Applicant: BASF AG

Inventor： KESSEL KNUT DR ,  SCHERR GUNTER DR ,  KLUGE MICHAEL DR ,  BIEDERMANN NORBERT DR ,  GREINDL THOMAS DR ,  BOGENSTATTER THOMAS DR

IPC: C07C279/14 ,  C07C277/02 ,  C07C277/08

Abstract: Preparation of creatine or creatine monohydrate by reaction of sodium or potassium sarcosinate with cyanamide at 20-150 degrees C and pH 7.0 to 14.0, the pH value is obtained using carbonic acid.

公开(公告)号：DK0985661T3

公开(公告)日：2002-03-25

申请号：DK99117237

申请日：1999-09-02

Applicant: BASF AG

Inventor： KESSEL KNUT DR ,  SCHERR GUENTER DR ,  KLUGE MICHAEL DR ,  BIEDERMANN NORBERT DR ,  GREINDL THOMAS DR ,  BOGENSTAETTER THOMAS DR ,  HAEHNLEIN WOLFGANG DR

IPC: C07C279/14 ,  C07C277/02 ,  C07C277/08

Abstract: Preparation of creatine or creatine monohydrate by reaction of sodium or potassium sarcosinate with cyanamide at 20-150 degrees C and pH 7.0 to 14.0, the pH value is obtained using carbonic acid.

公开(公告)号：SI0985661T1

公开(公告)日：2002-04-30

申请号：SI9930024

申请日：1999-09-02

Applicant: BASF AG

Inventor： KESSEL KNUT DR ,  SCHERR GUENTER DR ,  KLUGE MICHAEL DR ,  BIEDERMANN NORBERT DR ,  GREINDL THOMAS DR ,  BOGENSTAETTER THOMAS DR ,  HAEHNLEIN WOLFGANG DR

IPC: C07C277/08 ,  C07C279/14