Abstract: The invention relates to a process for preparing a solution of a non-ferrous metal sulphonate by reacting a non-ferrous metal with a sulphonic acid, the non-ferrous metal being brought into contact with a sulphonic acid at a temperature of from 20.degree. to 120.degree. C. in the presence of oxygen or oxygen-containing gases.
Abstract: Monoazo dyestuffs useful for dyeing and printing hydrophobic fibers have the formula ##STR1## in which R.sup.1 denotes alkyl having 1 to 3 carbon atoms, R.sup.2 and R.sup.3 independently of one another denote alkyl having 2 to 5 carbon atoms and R.sup.4 denotes methyl or ethyl.
Abstract: The invention relates to pharmacologically active substituted 3-aminosydnone imines of the general formula I ##STR1## in which R.sup.1 denotes (C.sub.1 -C.sub.4)-alkyl, di-(C.sub.1 -C.sub.4)-alkylamino or (C.sub.6 -C.sub.12)-aryl, which can optionally be substituted by (C.sub.1 -C.sub.4)-alkyl;R.sup.2 denotes hydrogen or COR.sup.3 and R.sup.3 denotes (C.sub.1 -C.sub.4)-alkyl, (C.sub.1 -C.sub.4)-alkoxy, (C.sub.1 -C.sub.4)-alkoxy-(C.sub.1 -C.sub.4)-alkyl, acetoxy-(C.sub.1 -C.sub.4)-alkyl, (C.sub.6 -C.sub.12)-aryl, which can be substituted by (C.sub.1 -C.sub.4)-alkyl or (C.sub.1 -C.sub.4)-alkoxy, pyridyl, pyridyl(C.sub.1 -C.sub.4)alkyl or (C.sub.3 -C.sub.8)-cycloalkyland their pharmacologically acceptable acid addition salts.
Type:
Grant
Filed:
July 16, 1991
Date of Patent:
October 13, 1992
Assignee:
Cassella Aktiengesellschaft
Inventors:
Karl Schonafinger, Helmut Bohn, Melitta Just
Abstract: In a process for preparing 2-substituted 1-(acylaminoalkyl)-2-imidazolines of the general formula I ##STR1## where R is an alkylene radical and R.sup.1 is a fatty acid radical, for example a fatty acid and a dialkylenetriamine are reacted with one another in a molar ratio of (1.8 to 2.0):1 by initially introducing one starting material at a temperature T.sub.1 and metering in the second starting material as a liquid, maintaining in the reaction mixture during the addition a temperature T.sub.1 and after the addition until the start of the cyclization a temperature T.sub.2 and distilling off the resulting water or alcohol via a rectification column and, after the acylation product has been formed, cyclizing in a conventional manner, T.sub.1 being a temperature of 170.degree. C. to the boiling point of the initially introduced starting material, but not higher than 250.degree. C., and T.sub.2 being a temperature of 170.degree. to 250.degree. C.
Abstract: Substituted 3-aminosydnone imines of the formula I ##STR1## and their pharmacologically acceptable acid addition salts, in which A denotes, for example, --CH.sub.2 --,R.sup.1 denotes hydrogen or the radical --COR.sup.5,R.sup.2, R.sup.3 denote alkyl having 1 to 4 C atoms,R.sup.5 denotes, for example, an aliphatic radical having 1 to 4 C atoms,and methods for preparing such compounds by cyclization of a compound of the formula II ##STR2## and if desired subsequent acylation. The invention also includes formulations containing effective amounts of such compounds, and methods for administering same to patients for the control and prophylaxis of cardiovascular disorders.
Type:
Grant
Filed:
August 29, 1990
Date of Patent:
June 9, 1992
Assignee:
Cassella Aktiengesellschaft
Inventors:
Karl Schonafinger, Rudi Beyerle, Helmut Bohn, Melitta Just
Abstract: The present invention relates to water-soluble trisazo dyes of the formula T ##STR1## and process for the preparation thereof and to the use thereof.
Type:
Grant
Filed:
August 5, 1991
Date of Patent:
May 5, 1992
Assignee:
Cassella Aktiengesellschaft
Inventors:
Wolfgang Bauer, Willi Steckelberg, Josef Ritter
Abstract: The present invention relates to a process for the dyeing and printing of blended fabrics made of polyester and natural fibre materials, characterized in that the polyester portion of the blended fabric is dyed and printed using one or more disperse dyes of the general formula I ##STR1## in which R is methyl, ethyl or alkyl having 2 or 3 C atoms, which is substituted by alkoxy having 1 to 3 C atoms, andR.sup.1 is alkyl having 1 to 3 atoms.
Type:
Grant
Filed:
January 22, 1991
Date of Patent:
April 7, 1992
Assignee:
Cassella Aktiengesellschaft
Inventors:
Ulrich Buhler, Klaus Hofmann, Margareta Boos, Reinhard Kuhn
Abstract: Use of water-insoluble monoazo dyes of the formula I ##STR1## where X.sup.1 and X.sup.2 are each for example chlorine,X.sup.3 is for example hydrogen, methyl or alkoxy,Y is for example hydrogen, methyl, alkoxy or --NHCOR,R is hydrogen or alkyl,R.sup.1 is for example hydrogen, alkyl or alkenyl, andR.sup.2 is for example alkyl or alkenyl,in the sublimation transfer process.
Type:
Grant
Filed:
February 12, 1990
Date of Patent:
March 3, 1992
Assignee:
Cassella Aktiengesellschaft
Inventors:
Erika Kunz, Ulrich Buhler, Josef Ritter
Abstract: In the process for the preparation of fluorinated benzoic acids of the formula I ##STR1## in which X and Y, for example, independently of one another denote chlorine or fluorine and X moreover denotes bromine, a fluorinated chloroacetophenone of the formula II ##STR2## in which Z denotes chlorine or hydrogen, is reacted with a hypohalite.
Abstract: The present invention relates to the use of hydrocarbon-rich gels as fracturing fluids and also to fracturing fluids which are composed of a hydrocarbon-rich gel and an auxiliary.
Abstract: Substituted 3-aminosydnone imines of the general formula I ##STR1## and their pharmacologically acceptable acid addition salts, in which A denotes an alkylene chain;X denotes one of the groups --O-- or --S--;R.sup.1 denotes e.g. hydrogen;R.sup.2 denotes e.g. an alkyl group,are prepared by cyclization of a compound of the formula II ##STR2## and, if appropriate, subsequent acylation, and have useful pharmacological properties.
Type:
Grant
Filed:
June 7, 1990
Date of Patent:
January 7, 1992
Assignee:
Cassella Aktiengesellschaft
Inventors:
Eckard Kujath, Christian Baumgartner, SchoKarl, Rudi Beyerle, Melitta Just, Helmut Bohn, Jorg Ostrowski
Abstract: The dyestuff mixture contains at least one dyestuff of the formula I ##STR1## and at least one dyestuff of the formula II ##STR2## wherein X and Y denote chlorine or bromine,R.sup.1 and R.sup.5 denote methyl or ethyl,R.sup.2 and R.sup.6 denote methyl, ethyl, n-propyl or i-propyl andR.sup.3, R.sup.4, R.sup.7 and R.sup.8 denote, for example, C.sub.1 - to C.sub.11 -alkyl, in the weight ratio of I:II=(5 to 95):(95 to 5), and is, for example, outstandingly suitable for dyeing synthetic fibres.
Abstract: The present invention relates to the .beta.-modification of the dye of the formula I ##STR1## to a process for its preparation, to its use, and to a dye preparation containing it.
Type:
Grant
Filed:
December 21, 1990
Date of Patent:
December 3, 1991
Assignee:
Cassella Aktiengesellschaft
Inventors:
Rudolf Binder, Friedrich Schophoff, Klaus Hofmann
Abstract: The present invention relates to compounds of the general formula I ##STR1## in which R.sup.1, R.sup.1', R.sup.2, A and n are as defined in the description, a process for their preparation, their use and also hydrogels prepared using them.
Type:
Grant
Filed:
June 25, 1990
Date of Patent:
November 26, 1991
Assignee:
Cassella Aktiengesellschaft
Inventors:
Friedrich Engelhardt, Ulrich Riegel, Joachim Gersdorf, Hans-Jerg Kleiner
Abstract: Alkenylphosphonic and -phosphinic acid esters of 1,1,1-tris(hydroxymethyl)alkanes and of 2,2-bis-hydroxymethyl-1,3-propanediol are useful as cross-linking agents in polymeric hydrogels.
Type:
Grant
Filed:
May 29, 1990
Date of Patent:
November 19, 1991
Assignee:
Cassella Aktiengesellschaft
Inventors:
Friedrich Engelhardt, Ulrich Riegel, Joachim Gersdorf, Hans-Jerg Kleiner
Abstract: Pyrrolealdehydes of the formula I ##STR1## wherein R and R.sup.1 independently of one another denote hydrogen or alkyl with 1 to 4 C atoms, R.sup.2 denotes alkyl, which is substituted by acylamino of the formula II ##STR2## wherein X stands for an oxygen or sulphur atom and R.sup.3 denotes hydrogen, optionally substituted alkyl or alkylamino, cycloalkyl with 5 to 7 C atoms, optionally substituted phenyl, an amino group or an optionally substituted phenylamio group, and pharmaceutically acceptable acid addition salts thereof, and wherein R.sup.3 cannot represent hydrogen if R and R.sup.1 denote hydrogen and the pyrrole ring is formylated in the 3-position, their preparation and their use.
Type:
Grant
Filed:
February 26, 1990
Date of Patent:
August 27, 1991
Assignee:
Cassella Aktiengesellschaft
Inventors:
Gerhard Zoller, Rudi Beyerle, Ursula Schindler
Abstract: In the process for the preparation of 2-substituted 1-(acylaminoalkyl)-2-imidazolines of the general formula I ##STR1## wherein R denotes an alkylene radical and R.sup.1 denotes a fatty acid radical, for example, a fatty acid and a dialkylenetriamine are reacted in a molar ratio of (1.9 to 2.0): 1 in such a way that the dialkylenetriamine is initially introduced hot under an inert gas atmosphere and the fatty acid is metered in hot and the amido amine formation is subsequently completed by heating to temperatures from 140.degree. to 190.degree. C. and the cyclization to the compound of the formula I is subsequently carried out at an under-pressure of at least 50 mbar.
Type:
Grant
Filed:
September 17, 1990
Date of Patent:
August 20, 1991
Assignee:
Cassella Aktiengesellschaft
Inventors:
Karl-Heinz Keil, Georg-Wolfgang Eckardt, Herbert Wirtz, Helmut Berenbold, Werner Wellbrock, Horst Frohlich
Abstract: The present invention relates to thienylacetic acid derivatives of the general formula I ##STR1## in which X denotes --O-- or --NH--;R.sup.1 denotes hydrogen, the group --CH.sub.2 --CO--R.sup.3 or the group --CO--CH.sub.2 --NH.sub.2 ;R.sup.2 denotes hydrogen, (C.sub.1 -C.sub.4)-alkyl or the radical R.sup.1 andR.sup.3 denotes (C.sub.1 -C.sub.4)-alkoxy, hydroxyl or amino, it not being possible for both R.sup.1 and R.sup.2 to represent hydrogen when X denotes O,as well as the pharmaceutically tolerated salts thereof, process for the preparation thereof, the use thereof, and pharmaceuticals containing these and the preparation thereof.
Abstract: Substituted 3-aminosydnonimines of the formula I ##STR1## and their pharmacologically acceptable acid addition salts, wherein R.sup.1 denotes, for example, alkyl having 1 to 8 C atoms, R.sup.2 denotes hydrogen or the radical --COR.sup.3 and R.sup.3 denotes, for example, an aliphatic radical having 1 to 4 C atoms, are prepared, for example, by cyclization of a compound of the formula II ##STR2## and if appropriate subsequent acylation and have useful pharmacological properties.
Type:
Grant
Filed:
October 17, 1989
Date of Patent:
April 9, 1991
Assignee:
Cassella Aktiengesellschaft
Inventors:
Karl Schonafinger, Rudi Beyerle, Melitta Just, Helmut Bohn, Jorg Ostrowski
Abstract: Synthetic fiber materials are effectively colored by dyeing or printing with a dyestuff mixture containing at least two separate dyestuffs (I) and (II) in a weight ratio of (I):(II) of from (20 to 99):(80 to 1) wherein:(I) is at least one dyestuff of the formula ##STR1## and (II) is at least one dyestuff of the formula ##STR2## in which X and Y are the same or different and each is independently chloro and bromo:R.sup.1 and R.sup.