Bayer Aktiengesellschaft

Kurt Ley

Florin Seng

Karl G Metzger

Hermann Hagemann

Friedhelm Muller

Helmut Hurnik

Wolfgang Lehmann

Gerhard Troemel

Dieter Arlt

Brigitte Hamburger

Franz Bechlars

Blowing agents comprising urea dicarboxylic acid anhydride do not give rise to discoloring decomposition residues nor form acid or alkaline by-products. These blowing agents may be used for expanding thermoplastic resins.

Blowing agents based on urea dicarboxylic acid anhydride

Water-soluble polyamines which (a) have an average molecular weight of above 1,000, (b) contain at least one grouping of the formula

Polyamines containing acid groups that are useful in papermaking

This invention relates to a new process for the production of ammonium salts of dithiocarbamic acid; the process comprising reacting bis-alkyl aminomethanes with sulphur.

Process for the production of ammonium salts of dithiocarbamic acid

Compounds of the formula ##STR1## and alkali metal or alkaline earth metal salts thereof, wherein R.sup.1 and R.sup.2 are the same or different and each is hydrogen, alkyl, alkoxy, haloalkyl, polyhaloalkyl, haloalkoxy, polyhaloalkoxy or halo; R.sup.3 is methyl, hydroxy or amino; are produced by treating the corresponding 3-cyanoquinoxaline-di-N-oxide of the formula ##STR2## wherein R.sup.1, R.sup.2 and R.sup.3 are as above defined, with hydrogen sulfide or an alkali metal or alkaline earth metal salt thereof. When a salt of hydrogen sulfide is used, the resulting mercaptide product may be converted to the corresponding mercaptan by treatment with an acid to produce the corresponding 2-mercaptoquinoxaline-di-N-oxide.

2-Mercaptoquinoxaline-di-N-oxide products and a method for their

Antimicrobial compositions and uses employing benzo-1,2,4-triazines-1,4-di-N-oxides substituted in the 3-position with a substituted amino group and optionally substituted in the benzo ring are described. The compounds utilized, of which 3-(N-acetoacetylamino)benzo-1,2,4-triazine-1,4-di-N-oxide is a typical embodiment, are prepared from the corresponding 2-aminobenzo-1,2,4-triazine-1,4-di-N-oxide through alkylation or acylation.

Antibacterial benzo-1,2,4-triazines

Compositions comprising a 3-amino-1,2,4-benzotriazine-1,4-di-N-oxide as the active ingredient exhibit antimicrobial activity and may be used to promote livestock growth by adding an effective amount of said composition to edible fodder.

3-Amino-1,2,4-benzotriazine-1,4-di-N-oxide compositions and method of

An N-monosubstituted formamide having the formula: ##EQU1## in which R represents an optionally substituted aliphatic, cycloaliphatic or aromatic radical; is prepared by reacting a formaldimine having the formula:

Process for producing N-monosubstituted formamides

Imines of 2-formylquinoxaline-3-carboxylic acid-1,4-dioxides and their salts are obtained through treatment of the lactone or a salt of 2-dihydroxymethylquinoxaline-N,N-dioxide-3-carboxylic acid with a reactant bearing a free primary amino group. Veterinary feedstuffs are produced by combining a nutritious material with an imine as above described.

Veterinary feedstuffs

1,2,4-TRIAZINE-1,4-DI-N-oxides (1,4) useful as microbicides having the formula (I): ##SPC1## wherein X.sup.1 and X.sup.2 which may be the same or different are hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted alkoxy, halogen alkyl or halogen; and A is selected from the group of

Microbiocidal methods and compositions using substituted

4-amino-pyrimido-(4,5,b)-quinoxaline-5,10-dioxides of the formula: ##SPC1## Wherein

Antibacterial compositions containing a

Animal fodder compositions containing a 4-amino-pyrimido-(

Imines of 2-formylquinoxaline-3-carboxylic acid-1,4-dioxides and their salts are obtained through treatment of the lactone or a salt of 2-hydroxymethylquinoxaline-N,N-dioxide-3-carboxylic acid with a reactant bearing a free primary amino group. Veterinary feedstuffs are produced by combining a nutritious material with an imine as above described.

Growing community of inventors

Odenthal-Globusch, Germany

Kurt Ley