Abstract: A method for pyrolysis of polycarbonate-containing material in order to recover raw materials is provided. The method comprises at least the following steps: (a) introducing material intended for the pyrolysis, at least comprising material that contains a mixture of a polycarbonate-containing compound and a polystyrene-containing compound, into a reactor; (b) decomposing, at a temperature of 300° C. to 700° C., at least the material intended for pyrolysis introduced into the reactor in step (a) and obtaining a product that is present in the gaseous phase as the pyrolysate and of pyrolysis residues that are present in a non-gaseous phase; and (c) cooling the removed pyrolysate to a temperature of less than 300° C. while obtaining a pyrolysis product, selected from pyrolysis condensate, pyrolysis sublimate or a mixture thereof.

Abstract: The invention relates to a method according to claim 1 for the commercial implementation of a pyrolysis, and to pyrolysis devices for the pyrolysis of pyrolysis stock used in this method. The pyrolysis stock contains a polymeric compound having at least one structural polyurethane unit of the formula (I), wherein Q is a hydrocarbon group with 2 to 8 carbon atoms, preferably 3 to 8 carbon atoms, and n represents a number from 2 to 4, most preferably 2, and -* represents a covalent bond to the polymer backbone. The method and the pyrolysis device according to the invention allow, even with higher compounds of pyrolysis stock an amount of pyrolysis product to be obtained that contains cleavage products which can be reused for the synthesis of polyurethane-containing material.

Abstract: The invention relates to a method for producing a polyoxymethylene polyoxyalkylene block copolymer, said method including the process of reacting a polymer formaldehyde compound with alkylene oxide in the presence of a double metal cyanide (DMC) catalyst and an H-functional starter substance, wherein the theoretical molar mass of the polymer formaldehyde compound is lower than the theoretical molar mass of the H-functional starter substance, and the polymer formaldehyde compound has at least one terminal hydroxyl group, the theoretical molar mass of the H-functional starter substance being at least 500 g/mol. In the method according to the invention, a mixture i) is provided comprising the DMC catalyst and the H-functional starter substance in step (i); the polymer formaldehyde compound is then added to the mixture (i) in step (ii), thereby forming a mixture (ii); and the alkylene oxide is added in step (iii), step (ii) being carried out at the same time as or prior to step (iii).

Abstract: The invention relates to a process according to claim 1 and pyrolysis devices used therein for the pyrolysis of pyrolysis stock comprising polyurethane-containing material, allowing carrying out pyrolysis on an industrial scale. According to the invention, even with higher amounts of pyrolysis stock an amount of pyrolysis product is obtained that contains cleavage products which can be reused for the synthesis of polyurethane-containing material.

Abstract: The invention is related to a process for producing an isocyanate-group terminated polyoxazolidinone composition comprising the copolymerization of a polyisocyanate compound with two or more isocyanate groups with a polyepoxide compound with two or more epoxy groups in the presence of phosphorous and/or antimony catalyst, wherein the molar ratio of the isocyanate groups of the polyisocyanate compound to the epoxy groups of the polyepoxide compound is larger than 2:1 and less than 25:1, and wherein the process is conducted in the absence of a solvent with a boiling point higher than 200° C., at 1 bar (absolute). The invention is also related to the resulting isocyanate-group terminated polyoxazolidinone compositions and a process for producing an isocyanate-group terminated polyoxazolidinone by removal of a solvent and/or unreacted polyisocyanate compound.

Abstract: The present invention relates to composition at least including (A) at least one epoxy-group terminated polyoxazolidinone, derived from at least one polyisocyanate compound and at least one aliphatic polyepoxide compound, (B) at least one compound having at least one group that is reactive towards terminal epoxy-groups, and (C) at least one solvent. The molar ratio of the epoxy groups of the polyepoxide compound to the isocyanate groups of the polyisocyanate compound is 50:1 to 2.4:1. The at least one epoxy-group terminated polyoxazolidinone is present in an amount of 50 to 95% by weight, in respect of the solid content of the composition. The sum of all components in respect of the solid content of the composition adds up to 100% by weight and where the solid content of the composition is at least 35% by weight.

Abstract: A process for producing a thermoplastic polyoxazolidinone comprising copolymerizing a diisocyanate compound with a bisepoxide compound in the presence of a catalyst, in a solvent, wherein the solvent (E) comprises at least one of a substituted or unsubstituted alkyl nitrile, a substituted or unsubstituted alkenyl nitrile, a substituted or unsubstituted cycloalkyl nitrile, a substituted or unsubstituted aryl nitrile, a substituted or unsubstituted alkylcycloalkyl nitrile, a substituted or unsubstituted alkylaryl nitrile, a substituted or unsubstituted hetercycloalkyl nitrile, a substituted or unsubstituted heteroalkyl nitrile, and a substituted or unsubstituted heteroaryl nitrile, preferably a substituted or unsubstituted aryl nitrile. The invention is also related to the resulting thermoplastic polyoxazolidinone.

Abstract: A process for producing thermoplastic polyoxazolidinones is provided. The process comprises copolymerization of a diisocyanate compound with a bisepoxide compound in the presence of a catalyst and a compound, wherein the compound is one or more compounds selected from the group consisting of monofunctional isocyanate, monofunctional epoxide, cyclic carbonate, monofunctional alcohol, monofunctional amine preferred monofunctional epoxide, wherein the process is performed at reaction temperatures of ?178° C. to ?230° C., wherein the bisepoxide compound (B) comprises 2,4?-isopropylidenediphenol diglycidyl ether (2,4? BADGE) and 4,4?-isopropylidenediphenol diglycidyl ether (4,4? BADGE); and wherein the molar ratio of 2,4?-isopropylidenediphenol diglycidyl ether (2,4? BADGE) is from ?3 mol-% to ?11 mol-% related to the sum of 2,4?-isopropylidenediphenol diglycidyl ether (2,4? BADGE) and 4,4?-isopropylidenediphenol diglycidyl ether (4,4? BADGE). A resulting thermoplastic polyoxazolidinone is also provided.

Abstract: A process for producing a thermoplastic polyoxazolidinone comprising copolymerization of a diisocyanate compound (A) with a bisepoxide compound (B) in the presence of a specific a quaternary ammonium, quaternary phoshonium and/or quaternary stibonium-based catalyst (C), a compound (D), a compound (F) wherein compound (D) and compound (F) is one or more compounds selected from the group consisting of a monofunctional isocyanate, a monofunctional epoxide, a cyclic carbonate, a monofunctional alcohol, a monofunctional amine optionally in a solvent (E), and wherein bisepoxide compound (B) comprises an epoxy-terminated oxazolidone-based prepolymer. The invention is also related to the resulting thermoplastic polyoxazolidinone.

Abstract: The invention relates to a method for producing a poly(anthranilamide) via the polymerisation of isatoic anhydride, preferably in the presence of a solvent, on a starter at a reaction temperature in the region of 110° C. to 300° C., wherein the starter comprises an aliphatic mono- or diamine with 5 to 13 carbon atoms, an araliphatic mono- or diamine with 7 to 15 carbon atoms, an aromatic diamine with 6 to 13 carbon atoms, a carboxylic acid amide of formula Ar—(C?O)NHR, where Ar represents an aromatic group substituted with an amine NH— or NH2 group and R represents an aromatic or aliphatic group, or a mixture of the above-mentioned starters, and wherein the solvent, if used, comprises an organic solvent, which is in liquid form at the reaction temperature, an ionic liquid or a mixture of these solvents, obtaining a poly(anthranilamide) based on the starter.

Abstract: A process for producing a thermoplastic polyoxazolidinone comprising copolymerizing a diisocyanate compound (A) with a bisepoxide compound (B) in the presence of a specific a quaternary ammonium, quaternary phoshonium and/or quaternary stibonium-based catalyst (C), a compound (D), a compound (F) wherein compound (D) and compound (F) independently comprises at least one of a monofunctional isocyanate, a monofunctional epoxide, a cyclic carbonate, a monofunctional alcohol, a monofunctional amine optionally in a solvent (E), and wherein the process is in the absence of a solvent (G) with a boiling point higher than 200° C., preferably higher than 190° C. and more preferably higher than 180° C. at 1 bar (absolute). The invention is also related to the resulting thermoplastic polyoxazolidinone.

Abstract: The present invention relates to a process of preparing a poly(anthranilamide) comprising the steps: (A) providing an anthranilate, and (B) reacting the anthranilate by polycondensation and separation of the alcohol on which the anthranilate is based in the presence of a catalyst to poly(anthranilamide), the poly(anthranilamides) obtained in this way and their use in the production of fibers of composite materials.

Abstract: A process for producing a thermoplastic polyoxazolidinone comprising copolymerizing a diisocyanate compound (A) with a bisepoxide compound (B) in the presence of a specific a quaternary ammonium, quaternary phoshonium and/or quaternary stibonium-based catalyst (C), a compound (D), a compound (F) wherein compound (D) and compound (F) independently comprises at least one of a monofunctional isocyanate, a monofunctional epoxide, a cyclic carbonate, a monofunctional alcohol, a monofunctional amine optionally in a solvent (E), and wherein the catalyst (C) is added in at least two portions (C-1) and (C-2). The invention is also related to the resulting thermoplastic polyoxazolidinone.

Abstract: A process for producing a polyoxymethylene-polyoxyalkylene copolymer is provided. The process comprises reacting a polymer formaldehyde compound of an alkylene oxide and a specific component (X) in the presence of a double metal cyanide (DMC) catalyst. A polyoxymethylene-polyoxyalkylene copolymer can be obtained by means of such a process and to the use of same for producing a polyurethane polymer.

Abstract: A process for producing an ether esterol, preferably a polyether esterol, by reacting an H-functional starter substance with a cyclic anhydride and an alkylene oxide in the presence of a catalyst is provided. An ether sterol and a process for preparing a polyurethane are also provided.

Abstract: A method for producing an ether esterol, preferably a polyether esterol, is provided. The method comprises reacting an H-functional starter substance (1) with a cyclic anhydride (2) in the presence of a catalyst (4), wherein the cyclic anhydride (2) contains a specific alkylsuccinic acid anhydride (2-1) and the catalyst (4) is an amine, a double metal cyanide (DMC) catalyst and/or a Bronsted acid. Ether esterols, preferably polyether esterols obtainable using the claimed method are also provided..

Abstract: A method for producing a polyoxymethylene polyoxyalkylene copolymer, comprising reacting a polymer formaldehyde compound with an alkylene oxide in the presence of a double metal cyanide (DMC) catalyst, wherein the polymer formaldehyde compound comprises at least one terminal hydroxyl group and wherein the method comprises the steps of placing a suspending agent in a reactor and subsequently incrementally or continuously metering in the polymer formaldehyde compound into the reactor during the reaction is provided.

Abstract: A method for preparing polyether carbonate alcohols by attaching cyclic carbonate to an H-functional starter substance in the presence of a catalyst, characterized in that a tribasic alkali- or alkaline earth metal phosphate is used as the catalyst, the alkali metal being selected from potassium or cesium.

Abstract: A process for producing thermoplastic polyoxazolidinone, comprising the following steps: (i) Reaction of a diisocyanate compound (A) with a bisepoxide compound (B) in the presence of a catalyst (C) and a compound (D) in a solvent (E) forming an intermediate compound (F) and (ii) Reaction of a compound (G) with the intermediate (F) formed in step (i), wherein the bisepoxide compound (B) comprises isosorbide diglycidylether, wherein compound (D) is one or more compounds selected from the group consisting of monofunctional isocyanate and monofunctional epoxide, and wherein compound (G) is an alkylene oxide. The invention is also related to the resulting thermoplastic polyoxazolidinone.

Abstract: A process for preparing polyether carbonate alcohols by attaching cyclic ethylene carbonate to an H-functional starter substance in the presence of a catalyst, characterized in that at least one compound according to formulae X[VO3] (1), Y2[WO4] (2), or Y3[VO4] (3), wherein X=alkali metal, preferably potassium or cesium, and Y=potassium or cesium, is used.