Abstract: The present invention relates to compounds selected from formula I wherein R1, R2, R3 and R4 are the same or different and represent hydrogen, C1, to C6-alkyl, C5 to C6-cycloalkyl, phenyl and halogen, m and n are the same or different and represent the 2, 3, 4 or 5, X, A and B represent carbon and Y1, Y2, Z1 and Z2 are the same or different and represent hydrogen, hydroxyl (OH), amino (NH2), isocyanato (NCO) or 4-hydroxyphenyl.

Abstract: Acylbenzenes of the formula ##STR1## can be prepared by reaction of benzene with carboxylic acids of the formulaHOOC--R.sup.1 (II)where R.sup.1 has the meaning given in the text, using a molar ratio of benzene:carboxylic acid=1-50:1 at a temperature of 200.degree.-400.degree. C., a zeolite of the Pentasil type having an SiO.sub.2 /M.sup.2 O.sub.2 ratio of 15-500:1 being used as acid catalyst; in the latter formula, M.sup.2 is one element or more from the group comprising Al, B, Ga, In, Fe, Cr, V, As and Sb.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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 andR.sup.5, R.sup.6 and R.sup.7 represent hydrogen, iso-C.sub.3 -C.sub.5 -alkyl,one of the substituents R.sup.5, R.sup.6 or R.sup.7 not being hydrogen, in quantities of from 100 to 1 mol-%, based on the total quantity of difunctional carbonate structural units in the polycarbonate.

Abstract: 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,m is 2 or 3 andX represents hydrogen or a C.sub.6 -C.sub.12 hydrocarbon, at least one substituent X being a C.sub.6 -C.sub.12 hydrocarbon radical,in quantities of from 100 to 1 mol-% based on the total quantity of difunctional carbonate structural units in the polycarbonate.

Abstract: Fungicidally and bactericidally active novel acylated saccharins of the formula ##STR1## in which X is oxygen or sulphur andR is --CO--R.sup.1 or --SO.sub.2 --OR.sup.2,R.sup.1 is alkyl, halogenalkyl, alkoxy, halogenoalkoxy or alkylthio, or is optionally substituted aryl, aryloxy or arylthio, cycloalkoxy or --NR.sup.3 R.sup.4,R.sup.2 is alkyl or phenyl,R.sup.3 is alkyl, andR.sup.4 is alkyl, phenyl, halogenoalkylthio, alkoxycarbonyl or phenoxycarbonyl, or--NR.sup.3 R.sup.4 is a saccharin radical.

Abstract: 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.

Abstract: 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, andR.sup.3 and R.sup.4 each independently is hydrogen, alkyl, cycloalkyl or aryl,comprising reacting a 3-keto-2H,3H-1,2-benzisothiazole 1,1-dioxide of the formula ##STR2## with a hydrazine of the formula ##STR3## in a molar ratio of 1:1 to 1:50, in an inert solvent, at a temperature between 75.degree. C. and 200.degree. C. and for a reaction time of 15 to 40 hours. The products, some of which are known, are fungicidally active and can also be used as intermediates.

Abstract: Compounds of the formula ##STR1## in which R.sup.1 is alkyl, cycloalkyl, aryl or hydrogen,R.sup.2 is --CO--R.sup.3,R.sup.3 is alkyl, alkenyl or cycloalkyl, or is phenyl which is optionally substituted, or is alkoxy or benzyl, or is phenoxy which is optionally substituted, or is phenoxymethyl, alkylamino, cycloalkylamino or phenylamino, orR.sup.1 and R.sup.2 together are a ##STR2## group, R.sup.4 and R.sup.5 each independently is hydrogen, alkyl, cycloalkenyl or phenylalkenyl, or is phenyl which is optionally substituted by alkyl, halogen and/or alkoxy, or is furyl, orR.sup.4 and R.sup.5 together are alkylene having 4 to 6 carbon atoms,are fungicidally active. Those compounds wherein R.sup.3 is alkylamino, cycloalkylamino or phenylamino, with the exception of the compound in which R.sup.1 is hydrogen and R.sup.6 is phenylamino, are new.

Abstract: The present invention relates to new polyamines corresponding to the formula ##STR1## in which R.sup.1 represents an alkyl, cycloalkyl or aryl group andR.sup.2 represents hydrogen or an alkyl group.The present invention is also directed to a process for the preparation of these amines by hydrogenating the corresponding trinitriles.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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 dianhydrohexitol isomer mixtures. These isomer mixtures are then converted to dianhydrohexitol 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.

Abstract: A process for encapsulating products in a polymer by interfacial polymerization, in which a stabilized dispersion of droplets of a first liquid which is to be encapsulated or a stabilized dispersion of solid particles which are to be encapsulated is formed in a continuous phase of a second liquid, and wherein one of the two capsule wall-forming reaction components is present in free form while the other of the two capsule wall-forming reaction components is present in reversibly blocked form, both reaction components are present in the first or second liquid without reacting with one another and the reaction component which is present in reversibly blocked form is deblocked by means of water present in the second or first liquid and then reacts with the reaction component present in free form to form a polymeric capsule wall, the droplets of the first liquid or the solid particles being encapsulated in small capsules consisting of polymeric material.

Abstract: The present invention is concerned with a new class of compounds prepared by reacting cyclic aminals of the formula ##STR1## with polyisocyanates of the formula R.sub.5 (NCO).sub.m+n to yield ##STR2## and with this process for obtaining said compounds, as well as the use of such compounds in polyurethane chemistry. If such compounds are free of isocyanates (n=0) they are useful as latent cross-linkers or hardeners activatable by heat or moisture. If such compounds carry free isocyanate groups (n=1 or 2) there are useful as synthetic resin precursors. In the above formulaem represents an integer of from 1 to 3, andn represents 0, 1 or 2, and the sum of m+n is 2 or 3,R.sub.1 represents an aliphatic hydrocarbon group which is optionally cyano-substituted and which has from 1 to 6 carbon atoms, a cycloaliphatic hydrocarbon group having from 5-10 carbon atoms or an araliphatic hydrocarbon group having from 7-10 carbon atoms;R.sub.

Abstract: A water hardenable mixture comprising a blocked polyamine and cyclic anhydride compounds.

Abstract: The invention relates to new polyamines, preferably containing polyether segments, a process for their preparation and their use as starting components for the production of polyurethane resins. The process involves producing ketimines, aldimines or enamines containing hydroxyl groups by reacting a hydroxyl amine with an aldehyde or ketone and removing the water by product. The ketimine, aldimine, or enamine is then reacted with an NCO prepolymer wherein the hydroxyl group of the material reacts with the isocyanate group without disturbing the blocked amine. This polyaddition product is then hydrolyzed to unblock the high molecular weight polyamine.