Abstract: The invention relates to a salt core for producing cast parts, said salt core having a layered structure formed from layers of a moulded material which are applied individually and which are solidified. Said salt core is produced according to an additive manufacturing method, in particular, selective laser sintering.

Abstract: The invention relates to salt cores as cavity placeholders in castings, wherein the salt cores have a layered structure and can be produced by means of an additive manufacturing method, particularly by means of selective laser melting.

Abstract: The invention relates to salt cores for producing castings, which salt cores have a layered structure and can be produced by means of an additive manufacturing method. Salt is preferably used as a molding material, the salt being applied in layers and being supplied with a binder.

Abstract: Cores that are inserted into the mold during the die casting of workpieces from metal in order to keep the cavities provided in the workpieces free during the filling of the molds with the melt have to meet demanding requirements with regard to the dimensional stability and suitability thereof for removal from the cavities. Therefore, salt-based cores which can be produced by molding and compressing a core material mixture are provided according to the invention, the core materials thereof being selected from at least one salt, at least one binder system comprising a combination of binder/binding agent and optionally auxiliary substances such as additives, fillers, wetting agents and catalysts, wherein the salt, the binder system and the optionally used auxiliary substances of the core material mixture are inorganic, and these core materials are soluble with water as the solvent.

Abstract: Hydroxy-imino derivatives of formula IIb are disclosed, in which R and R1 have the meanings given in the description.

Abstract: The invention relates to a process for the preparation of ?-aminosubstituted carboxylic acid amide compounds and/or their salts comprising reacting a carboxylic acid amide of a primary amine with a nitrosylating agent in the presence of a base followed by hydrolysis to give a hydroxy imino derivative followed by hydrogenation and if necessary converting a base or acid of the ?-aminosubstituted carboxylic acid amide into one of its salts.

Abstract: The invention relates to a process for the preparation of ?-aminosubstituted carboxylic acid amide compounds and/or their salts comprising reacting a carboxylic acid amide of a primary amine with a nitrosylating agent in the presence of a base followed by hydrolysis to give a hydroxy imino derivative followed by hydrogenation and if necessary converting a base or acid of the ?-aminosubstituted carboxylic acid amide into one of its salts.

Abstract: The invention relates to a process for the preparation of &agr;-aminosubstituted carboxylic acid amide compounds and/or their salts comprising reacting a carboxylic acid amide of a primary amine with a nitrosylating agent in the presence of a base followed by hydrolysis to give a hydroxy imino derivative followed by hydrogenation and if necessary converting a base or acid of the &agr;-aminosubstituted carboxylic acid amide into one of its salts.

Abstract: The invention relates to indicators for determine the proton concentration of strongly alkaline aqueous solutions which contain compounds of the formula (I) ##STR1## in which ##STR2##

Abstract: Novel imidazopyridine derivatives of formula I ##STR1## and X, --Y.dbd.Z--, R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 as defined herein, and their salts, exhibit antagonistic properties towards angiotensin II and can be used for the treatment of hypertension, aldosteronism, cardiac insufficiency and increased intraocular pressure, and of disorders of the central nervous system.