Abstract: An aqueous two-component coating agent whose binder consists essentially of a combination of a) a polyol component present dissolved and/or dispersed in water comprising a1) at least one water-dilutable polymerisation resin or polycondensation resin with a molecular weight Mn of over 500 possessing hydroxyl groups and a2) a reactive diluent consisting of at least one water-soluble compound with a molecular weight Mn of under 500 capable of reacting with isocyanate groups and b) a polyisocyanate component with a viscosity at 23.degree. C. of from 50 to 10 000 mPa present emulsified in the aqueous solution or dispersion, a method for producing such coating agents wherein the said polyisocyanate component is emulsified in the said aqueous solution or dispersion with the optional incorporation of auxiliary substances and additives in the system prior to adding the polyisocyanate, and the use of the coating agents for the production of air-drying and/or heat-drying coatings.

Abstract: Polyisocyanate-modified dicarboxylic (poly)anhydrides which are solid below 40.degree. C., liquid above 120.degree. C. and based on the reaction product of organic polyisocyanates with more than equivalent quantities, based on the NCO/COOH reaction, of dicarboxylic (poly)anhydrides containing free carboxyl groups and optional subsequent modification of the reaction product with less than equivalent quantities, based on the anhydride groups, of anhydride-reactive amino and/or hydroxyl groups; and powder coating compositions containing as binder these polyisocyanate-modified dicarboxylic (poly)anhydrides as curing agents for polyepoxides.

Abstract: Dye-donor element for use according to thermal dye sublimation transfer comprising a support having on one side a dye layer and on the other side a heat-resistant layer, characterized in that said heat-resistant layer comprises a polyether containing at least 10 mol % recurring units corresponding to the following formula (I)O--E--O--E'-- (I)wherein--O--E--O-- represents a divalent diphenolate radical corresponding to the following general formula (II) ##STR1## wherein R.sub.1 and R.sub.2 (same or different) represent hydrogen, halogen, a C.sub.1 -C.sub.8 alkyl group, a C.sub.5 -C.sub.6 cycloalkyl group, a C.sub.6 -C.sub.10 aryl group or a C.sub.7 -C.sub.12 aralkyl group; andX represents the necessary atoms to close a 5- to 8-membered cycloaliphatic ring which may be substituted with one or more C.sub.1 -C.sub.

Abstract: The present invention relates to a process for preparing a coated, heat resistant substrate byI) coating the substrate with a coating composition containinga) a solution or dispersion containinga1) 100 parts by weight of at least one hydroxyl-functional polyacrylate resin in dissolved or dispersed form, wherein the resin has a hydroxyl value of 15 to 200 mg KOH/G solid resin, an acid value of 5 to 250 mg KOH/G solid resin and a total content of chemically incorporated carboxylate and/or sulfonate groups of 8 to 450 milliequivalents per 100 g of solids,a2) 25 to 395 parts by weight of water anda3) 5 to 125 parts by weight of at least one organic solvent having a boiling point or boiling range at 1013 mbar of 100 to 300.degree. C. andb) at least one organic polyisocyanate in a quantity corresponding to an equivalent ratio of isocyanate groups of component b) to isocyanate-reactive groups of component a1) of 0.

Abstract: The present invention relates to compositions which are storage stable at room temperature and containA) at least one compound having at least two cyclic isourea groups per molecule andB) at least one compound having at least two carboxyl groups per molecule,in an amount sufficient to provide a molar ratio of isourea groups to carboxyl groups of 0.5:1 to 1.5:1.

Abstract: Asymmetric semipermeable membranes which consist of aromatic polycondensates having recurring units of the formula(--O--Z--O--Y--).sub.n (I)in whichY is the divalent radical of an aromatic sulphone or of an aromatic ketone and--O--Z--O--is a divalent diphenolate radical which consists to the extent of 0.1-100 mol % of all the diphenolate radicals of those of the formula ##STR1## with the meaning given in the description, are suitable for haemodialysis, haemodiafiltration, haemofiltration, ultrafiltration, microfiltration and reverse osmosis.

Abstract: Aromatic polyether sulfones based on 5 to 90 mol-%, based on total bisphenols, of special dihydroxydiphenyl cycloalkanes and 10 to 95 mol-% based on the bisphenols of specific phthaleins, a process for their production and their use as molding compounds.

Abstract: The new aromatic ether imides corresponding to the following formula ##STR1## may be used for the production of plastics which in turn may be worked up into moulded articles, films, sheet products and filaments. The plastics produced from the new aromatic ether imides are distinguished by their exceptional dimensional stability under heat.

Abstract: Colorant preparations, in particular printing inks, contain compounds of the formula ##STR1## in which the substituents have the meanings given in the description as an additive.The additive substantially prevents the undesirable "build-up" in printing.

Abstract: Mixtures containing aromatic polyether ketones based on diphenols corresponding to formula (I) ##STR1## in which R.sup.1 and R.sup.2 independently of one another represent hydrogen, halogen, C.sub.1-8 alkyl, C.sub.5-6 cycloalkyl, C.sub.6-10 aryl and C.sub.7-12 aralkyl,m is an integer of from 4 to 7,R.sup.3 and R.sup.4 may be individually selected for each X and independently of one another represent hydrogen or C.sub.1-5 alkyl andX represents carbon, with the proviso that, at at least one atom X, R.sup.3 and R.sup.4 are both alkyl,and other organic polymers and films of these polymer mixtures.

Abstract: Aromatic polyether ketones based on 5 to 90 mol-%, based on the total quantity of all bisphenols, of special dihydroxydiphenyl cycloalkanes and 10 to 95% phthaleins, a process for their production and their use as molding compounds.

Abstract: The new aromatic ethers of the formulae ##STR1## can be used for the preparation of plastics which, in turn, can be processed further to give moulded articles, films, foils and filaments. The plastics prepared from the new aromatic ethers are distinguished by exceptional dimensional stability under heat.

Abstract: Polyether sulphones based on diphenols corresponding to the following general formula (I): ##STR1## wherein R.sup.1 and R.sup.2, independently represent hydrogen, halogen, C.sub.1 -C.sub.8 alkyl, C.sub.5 or C.sub.6 cycloalkyl, C.sub.6 -C.sub.10 aryl, or C.sub.7 -C.sub.12 aralkyl; m represents an integer of from 4 to 7;R.sup.3 and R.sup.4, may be selected individually for each X and independently represent hydrogen or C.sub.1 -C.sub.6 alkyl, andX represents carbon;with the proviso that, on at least one atom X, R.sup.3 and R.sup.4 both represent alkyl,the production thereof, films made from these polyether sulfones, composite films with other plastic materials and application of the films in gas permeation.

Abstract: The new aromatic ether imides corresponding to the following formula ##STR1## may be used for the production of plastics which in turn may be worked up into moulded articles, films, sheet products and filaments. The plastics produced from the new aromatic ether imides are distinguished by their exceptional dimensional stability under heat.

Abstract: Polyether ketones based on diphenols corresponding to the following general formula (I): ##STR1## wherein R.sup.1 and R.sup.2, independently represent hydrogen, halogen, C.sub.1 -C.sub.8 alkyl, C.sub.5 or C.sub.6 cycloalkyl, C.sub.6 -C.sub.10 aryl or C.sub.7 -C.sub.12 aralkyl;m represents an integer of from 4 to 7;R.sup.3 and R.sup.4, may be selected individually for each X and independently represent hydrogen or C.sub.1 -C.sub.6 alkyl, andX represents carbon;with the proviso that, on at least one atom, X, R.sup.3 and R.sup.4 both represent alkyl;the production thereof and application as films or composite films with other plastic films as well as their utilization as permeation membranes.

Abstract: Printing inks are described which utilize a unique class of coloring agents which are the reaction products of free NCO group bearing resins and dyestuffs bearing reactive hydrogens. A novel class of such adducts which contain monocarboxylic acid residues are also described. These printing inks, which may also contain traditional pigments, find particular utility in letterpress or offset printing.

Abstract: Silyl ethers obtainable from aryl silyl ketones and mono-, di-, tri- or tetra-chlorosilanes in the presence of base metals are eminently suitable for use as initiators for radical polymerization reactions.

Abstract: Penta- or hexahydric sugar alcohols are outstandingly suitable as a polyol component for the preparation of polyesters or alkyd resins. Secondary reactions resulting in darkening are substantially avoided if as small a quantity as possible of aromatic polycarboxylic acid components is used.

Abstract: Polyesters having a hydroxyl number of from 50 to 400 and containing 20 to 90% by weight of co-condensed .beta.-hydroxybutyric acid units have proved to yield transparent, glossy, elastic and hard coatings.