Abstract: The invention relates to a method for producing a specific hydroxyl compound by decarboxylating a specific carboxylic acid compound or a salt of said carboxylic acid compound in the absence of a catalyst and to a method for producing a bisphenol.

Abstract: The invention relates to a process for preparing a specific hydroxy compound by means of decarboxylation of a specific carboxylic acid compound or a salt of said carboxylic acid compound, to a method for preparing a diaryl carbonate, a bisphenol or a polycarbonate, a diaryl carbonate or bisphenol, a polycarbonate, and to a method for adjusting the isotope ratio of C14 to C12 in a polymer. A specific solvent is used during decarboxylation.

Abstract: The invention relates to a process for preparing a specific hydroxy compound by means of decarboxylation of a specific carboxylic acid compound or a salt of said carboxylic acid compound, to a method for preparing a diaryl carbonate, a bisphenol or a polycarbonate, a diaryl carbonate or bisphenol, a polycarbonate, and to a method for adjusting the isotope ratio of C14 to C12 in a polymer. A specific solvent is used during decarboxylation.

Abstract: The invention relates to a method for producing a specific hydroxy compound by decarboxylating a specific carboxylic acid compound or a salt of said carboxylic acid compound in the presence of a Bronsted base. The invention also relates to a method for producing a diaryl carbonate or a bisphenol, to a method for producing a polycarbonate and to a use of a Bronsted base during the reaction of the decarboxylation of a specific carboxylic acid compound or a salt of said carboxylic acid compound.

Abstract: The invention relates to a method for producing a specific hydroxyl compound by decarboxylating a specific carboxylic acid compound or a salt of said carboxylic acid compound in the absence of a catalyst and to a method for producing a bisphenol.

Abstract: The invention relates to aliphatic amines, methods for preparing the same and use thereof, particularly their use in curing agents. The method for preparing an aliphatic amine comprises reacting a reaction composition comprising an amino acid and an amine compound capable of dissolving the amino acid to obtain the aliphatic amine, wherein the content ratio of the amino acid to the amine compound is 1:10000-1:1, preferably 1:100-1:2, most preferably 1:10-1:2. The method for preparing an aliphatic amine provided by the present invention has a high reaction rate, a high conversion rate of the amino acid, a high purity of the aliphatic product, a long catalyst life, and easy purification of the reaction product.

Abstract: The present invention relates to a special process for preparing polyesterols having terminal hydroxyl groups and containing imide groups, to the polyesters per se, and to their use for the preparation of polyurethanes.

Abstract: The present invention relates to a method for breaking down lignocellulose biomass. In said method, acid-impregnated lignocellulose biomass, e.g., beech wood, pine wood or sugarcane bagasse, is subjected to a mechanical treatment and the obtained break-down residues are fed to a process of separation into water-soluble and water-insoluble components.

Abstract: The present invention relates to a method for obtaining a high yield of sugar alcohols containing five to six carbon atoms from cellulose-containing materials. In a first step the starting materials (for example microcrystalline cellulose, alpha-cellulose, wood and cellulose-containing residues, such as sugar cane bagasse or wood shavings) and an acid are brought into close contact with the substrates by a impregnation carried out in the liquid or gaseous phase. In addition, in a second step the starting materials impregnated with acid and preferably dried are brought into contact by the action of mechanical energy, such that the cellulose-containing materials are degraded into water-soluble products. Subsequently, in a third step, sugar alcohols having five to six carbon atoms are obtained in a high yield and in high selectivity from the water-soluble products in aqueous solution by hydrolytic hydrogenation by means of a metal-containing catalyst under hydrogen pressure.

Abstract: The present invention relates to a method for obtaining a high yield of sugar alcohols containing five to six carbon atoms from cellulose-containing materials. In a first step the starting materials (for example microcrystalline cellulose, alpha-cellulose, wood and cellulose-containing residues, such as sugar cane bagasse or wood shavings) and an acid are brought into close contact with the substrates by a impregnation carried out in the liquid or gaseous phase. In addition, in a second step the starting materials impregnated with acid and preferably dried are brought into contact by the action of mechanical energy, such that the cellulose-containing materials are degraded into water-soluble products. Subsequently, in a third step, sugar alcohols having five to six carbon atoms are obtained in a high yield and in high selectivity from the water-soluble products in aqueous solution by hydrolytic hydrogenation by means of a metal-containing catalyst under hydrogen pressure.

Abstract: A method is disclosed for the acid-catalyzed oligomerization of monosaccharides and/or disaccharides in which monosaccharides or disaccharides are subjected to a mechanical treatment in the presence of an inorganic and/or organic acid. During said process, a catalytic conversion of the monosaccharides or disaccharides takes place.

Abstract: A method for the acid-catalyzed depolymerization of cellulose comprises a mechanical treatment of cellulose in the presence of an inorganic and/or organic acid. The catalytic conversion of cellulose into water-soluble products is virtually completely achieved in that celluoligomers, cellubiose, glucose and glycerol are obtained without significant byproduction.