Bayer Aktiengesellschaft

Manfred Hajek

Herbert Salzburg

Carl Casser

Uwe Westeppe

Gerd Hanssler

Kuno Wagner

Helmut Waldmann

Volker Serini

Dieter Freitag

Hanns P Muller

Ulrich R Grigo

Karsten J Idel

Holger Meyborg

Gerd Fengler

Wolfgang Wellner

Klaus-Christian Paetz

Wilhelm Brandes

Josef Pedain

Paul Reinecke

Rolf Dhein

Manfred Jautelat

Hermann Hagemann

Engelbert Kuhle

Werner Rasshofer

Claus H Wulff

Rudolf Braden

Lothar Puppe

Otto Immel

Walter Schafer

Walter Uerdingen

Manfred Dahm

Eberhard Konig

Heinz Ziemann

Klaus D Berg

Alfred Eitel

Peter Vehlewald

Rolf Kuchenmeister

Norbert Weimann

Hanns-Peter M&uuml;ller

Ulrich Nehen

Karl-Arnold Weber

Armin Sickert

Bernd Griehsel

Wolfgang Fuhrer

Friedrich Moller

Varl-Heinz Kuck

The present invention relates to compounds selected from formula I

Cycloaliphatic compounds

Acylbenzenes of the formula ##STR1## can be prepared by reaction of benzene with carboxylic acids of the formula

Process for the preparation of acylbenzenes

Dihydroxydiphenyl bicycloalkanes characterized in that they contain 9 to 13 ring C atoms in the bicycloaliphatic component are disclosed. The disclosed compounds were found to be suitable for the preparation of high molecular weight, thermoplastic polycarbonate resins having favorable properties.

Special dihydroxydiphenyl bicycloalkanes, their production and their use

Polycarbonate from special dihydroxydiphenyl bicycloalkane

This invention relates to a process for the preparation of substituted cycloalkylidene bisphenols from phenols and special cycloalkanones in the presence of acid condensation catalysts and in the presence of water.

Process for the preparation of substituted cycloalkylidene bisphenols

Thermoplastic aromatic polycarbonates having average molecular weights Mw of at least 10,000 which contain bifunctional carbonate structural units corresponding to formula (I) ##STR1## in which R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently of one another represent hydrogen, a C.sub.1 -C.sub.12 hydrocarbon radical, halogen and

Polycarbonate of alkyl cyclohexylidene bisphenol

Thermoplastic aromatic polycarbonates having average molecular weight Mw of at least 10,000 which contain bifunctional carbonate structural units corresponding to formula (I) ##STR1## in which R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently of one another represent hydrogen, a C.sub.1 -C.sub.12 -hydrocarbon, halogen,

Polycarbonate of cycloalkylidene bisphenol

Fungicidally and bactericidally active novel acylated saccharins of the formula ##STR1## in which X is oxygen or sulphur and

Fungicidally and bactericidally active acylated saccharin derivatives

A method of combating fungi and bacteria which comprises applying to such fungi, bacteria or a habitat thereof, a fungicidally or bactericidally effective amount of at least one salt of 3-keto-2-, 3H-1,2-benzisothiazole 1,1-dioxide of the formula ##STR1## in which R.sup.1 represents hydrogen, alkyl having 1 to 18 carbon atoms, or alkyl which has 1 to 6 carbon atoms and is optionally monosubstituted to trisubstituted by hydroxyl and/or monosubstituted to trisubstituted by amino, or represents carboxyl-substituted alkyl having 1 to 4 carbon atoms, or phenyl which is optionally monosubstituted to trisubstituted by identical or different substituents from amongst nitro and chlorine, or represents cycloalkyl having 5 or 6 carbon atoms, or represents heterocyclic structures which are optionally saturated or unsaturated, are optionally monosubstituted to tetrasubstituted by alkyl having 1 to 4 carbon atoms or hydroxyl, and have 1 to 3 identical or different heteroatoms, and a total of 5 or 6 ring members, R.sup.2 represents alkyl having 1 to 18 atoms, or alkyl which has 1 to 6 carbon atoms and is optionally monosubstituted to trisubstituted by hydroxyl and/or monosubstituted to trisubstituted by amino, or represents carboxyl-substituted alkyl having 1 to 4 carbon atoms, or phenyl which is optionally monosubstituted to trisubstituted by identical or different substituents from amongst nitro and chlorine, or represent cycloalkyl having 5 or 6 carbon atoms, or represents heterocyclic structures which are optionally saturated or unsaturated, are optionally monosubstituted to tetrasubstituted by alkyl having 1 to 4 carbon atoms or hydroxyl, and have 1 to 3 identical or different heteroatoms, and a total of 5 or 6 ring members, and R.sup.3 represents hydrogen, alkyl, having 1 to 6 carbon atoms, NH.sub.2, ##STR2## benzyl, or hydroxyalkyl having 1 to 3 carbon atoms, with the exception of the mono-, di- and triethanolamine compounds, or R.sup.1 and R.sup.2 together with the nitrogen atom at which they are located, form a 5-membered or 6-membered ring which can optionally contain further heteroatoms, and can optionally be substituted by keto groups or fused-on 5-membered or 6-membered rings and/or alkyl having 1 to 4 carbon atoms, with the exception of the pyridine ring which is optionally mono- or disubstituted by methyl.

Salts of 2-keto-2H, 3H-1,2-benzisothiazole 1,1-dioxide as microbicides

Compounds of the formula ##STR1## in which R.sup.1 is alkyl, cycloalkyl, aryl or hydrogen,

3-hydrazono-benzisothiazole 1,1-dioxide fungicides

A process for the preparation of a 3-hydrazino-1, 2-benzisothiazole 1,1-dioxide of the formula ##STR1## in which R.sup.1 and R.sup.2 each independently is hydrogen, alkyl, halogen, amino, hydroxyl or carboxyl, and

Process for the preparation of 3-hydrazino-1,2-benz-isothiazole

The present invention relates to new polyamines corresponding to the formula ##STR1## in which R.sup.1 represents an alkyl, cycloalkyl or aryl group and

Polyamines

The present invention is directed to a process for the production of water- and solvent-resistant coated substrates by coating heat-resistant substrates with a solution or dispersion of an anionic group-containing polyisocyanate addition product in an aqueous solvent or dispersant and subsequently thermally treating the coating at a temperature of about 60.degree. to 200.degree. C., with evaporation or vaporization of the solvent or dispersant and simultaneous crosslinking of the polyisocyanate addition product which has been applied to the substrate, characterized in that incorporated anionic structural units corresponding to the formula ##STR1## are used in a quantity of about 5 to 1000 milliequivalents per 100 g of solids and the solids are based on reaction products of organic polyisocyanates with salts of cyanamide and bases selected from ammonia, primary and secondary amines having a minimum pKb value of 3.1, tertiary amines and mixtures thereof. The present invention also relates to the aqueous solutions or dispersions of anionically-modified polyisocyanate addition products.

Process for the production of coated substrates

Liquid dianhydrohexitol mixtures are prepared from diacylation products of hexitols and compounds such as organic carboxylic acids, carboxylic acid anhydrides, carboxylic acid halides, ketene and carbonic acid ester derivatives. More specifically, such diacylation products are simultaneously dehydrated and isomerized by subjecting them to a temperature of at least 130.degree. C. in the presence of a strong acid to yield diacylated dianhydro-hexitol isomer mixtures. These isomer mixtures are then converted to dianhydro-hexitol isomer mixtures by hydrolysis or transesterification. Suitable strong acids include proton acids, Lewis acids and heterogeneous acid catalysts (e.g., ion exchange resins). The mixtures of the present invention are characterized by a minimal tendency towards crystallization. These mixtures are particularly useful as chain extending agents in the production of polyurethanes.

Process for the production of dianhydrohexitol mixtures and the

Homogeneous storage stable solutions of cyanamide in a polyol are made by dehydrating a mixture of an aqueous cyanamide solution and at least one polyol under mild conditions. The aqueous cyanamide solution contains from 10 to 55 wt % cyanamide. The polyol may have a molecular weight of from 62 to 12,000. Polyether and/or polyester polyols having molecular weights from 400 to 12,000 are preferred. Mixtures of high and low molecular weight polyols which are not completely miscible with each other are also preferred. The dehydration is generally carried out at pressures less than 100 mbar and temperatures less than 130.degree. C. The product solution has a cyanamide content of from 0.1 to 50 wt % and a residual water content which is generally no greater than 1 wt %. These homogeneous and storage stable cyanamide in polyol solutions are particularly useful in the production of polyurethanes.

Homogeneous storage stable cyanamide solutions in polyols and a process

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Cologne, Germany

Manfred Hajek