Abstract: Disclosed are HCFO-containing isocyanate-reactive compositions that include a tertiary amine oxide catalyst. Also described are foam-forming compositions containing such isocyanate-reactive compositions, rigid foams made using such foam-forming compositions, and methods for producing such foams, including use of such foams as insulation in discontinuous foam panel applications. The isocyanate-reactive composition can exhibit a long shelf life, be shelf-stable, and produce foam with good physical properties.

Abstract: A polyol formulation for producing flameproof polyurethane/polyisocyanate rigid foams (referred to individually or jointly in the following as “PUR/PIR rigid foams”), containing a polyester polyol having an OH number ?250 mg KOH/g, a functionality of 1.5 to 2.5 and a free glycol content with Mn<150 g/mol of <6 wt. %, a polyethylene glycol with an average molecular weight of <700 g/mol and an average functionality of <2.5 and specific polyethyleneglycol alkylphenyl ethers, and methods for producing PUR/PIR rigid foams using said polyol formulation and to the PUR/PIR rigid foams obtained thereby are provided.

Abstract: The present invention relates to a process for producing polyurethanes, preferably polyurethane foams, by reaction of compounds containing isocyanate-reactive hydrogen atoms with di- and/or polyisocyanates in the presence of one or more compounds selected from the group consisting of: NC—CHR1—CON R12—X??(I), NC—CHR2—CONR3-aryl??(II), NC—CHR4—CO2H??(III), [NC—CHR5—CO2]mYm+??(IV), wherein X represents NR6R7, OR8, CONR9R10 or COOR11, R1 to R12 each independently of one another represent H, an optionally substituted C1-C8 alkyl group or an optionally substituted aryl group, Y represents a monovalent or divalent cation and m represents 1 or 2. The present invention further relates to the polyurethanes obtainable from this process, and to the use of such polyurethanes, for example in the interior of automobiles.

Abstract: The invention relates to flame-retardant polyurethane foam materials or polyurethane/polyisocyanurate foam materials (also referred to individually or collectively as “PUR/PIR foam materials” below) and to methods for producing PUR/PIR foam materials by reacting a reaction mixture containing A1 an isocyanate-reactive component, A2 a propellant, A3 a catalyst, A4 optionally an additive, and A5 a flame retardant with B an isocyanate component, wherein the production is carried out using an index of 80 to 600. The invention is characterized in that the flame retardant A5 contains (hydroxymethyl)phosphonate and optionally the dimer thereof as component A5.1.

Abstract: A method for producing a prepolymer for the production of an integral polyurethane foam is provided. The prepolymer is or can be obtained by reaction of a composition that contains the following components: component A containing a polyoxymethylene-polyoxyalkylene block copolymer having a hydroxyl number of 20 mg KOH/g to 200 mg KOH/g as component Al, component B containing di- and/or polyisocyanates with an NCO content of 15 to 45 wt.-% relative to component B, 0.04 to 1.0 wt.-%, relative to the composition, a proton acid as component C, and optionally a component D that contains auxiliary agents, at a characteristic number of 450 to 850. The invention further relates to the prepolymer obtained by the method, to an integral polyurethane foam based on the prepolymer, and to the use thereof.

Abstract: The invention relates to flame-proofed polyurethane hard foam material or polyurethane/polyisocyanurate hard foam material (designated below individually or jointly also as “PUR/PIR hard foam material”) comprising phosphinates (also hypophosphite), and to a method for producing PUR/PIR hard foam materials through the implementation of a reaction mixture containing A1 an isocyanate-reactive component, A2 propellant, A3 catalyst, A4 optionally additive, A5 flame-proofing agent, B an isocyanate component, characterised in that the flame-proofing agent A5 contains a phosphine according to the formula (I)M[(R)2PO2]n, where R=in each case stands for H, C1- to C4-(hydroxy-)alkyl group or benzyl group, M=an element of the main groups 1 to 3, wherein hydrogen is excepted, and n=the number of the main group of M, and the proportion of the phosphine according to the formula (I) is 0.1 to 15 wt %, based on the total mass of components A1 to A5.

Abstract: The invention relates to flame-proofed polyurethane hard foam material or polyurethane/polyisocyanurate hard foam material (designated below individually or jointly also as “PUR/PIR hard foam material”) comprising phosphinates (also hypophosphite), and to a method for producing PUR/PIR hard foam materials through the implementation of a reaction mixture containing A1 an isocyanate-reactive component, A2 propellant, A3 catalyst, A4 optionally additive, A5 flame-proofing agent, B an isocyanate component, characterised in that the flame-proofing agent A5 contains a phosphine according to the formula (I)M[(R)2PO2]n, where R=in each case stands for H, C1- to C4-(hydroxy-)alkyl group or benzyl group, M=an element of the main groups 1 to 3, wherein hydrogen is excepted, and n=the number of the main group of M, and the proportion of the phosphine according to the formula (I) is 0.1 to 15 wt %, based on the total mass of components A1 to A5.

Abstract: A method for producing a foam body (10) having an internal structure (100, 200, 300), comprising the steps: I) selecting an internal structure (100, 200, 300) to be formed in the foam body (10), the structure comprising a first polymer material; II) providing a foam body (10), the foam body (10) comprising a second polymer material which is different to the first polymer material; III) injecting, by means of an injection means (20), a predefined amount of a melt of the first polymer material or a predefined amount of a reaction mixture (30, 31, 32) which reacts to form the first polymer material at a predefined location inside the foam body (10), corresponding to a volume element of the internal structure (100, 200, 300); IV) repeating step III) for further predefined locations inside the foam body (10), corresponding to further volume elements of the internal structure (10), until the internal structure (10) is formed.

Abstract: The present invention relates to the use i) of one or more compounds selected from the group consisting of R1R2C?CR3—C(O)—O—R4??(I.), R5R6C?CR7—C(O)—O—R8—O—(O)C—R9C?CR10R11??(II.), R12R13C?CR14—C(O)—O—(O)C—R14C?CR13R12??(III.) and R15R16C?CR17—C(O)—NR18—R19??(IV.

Abstract: The present invention relates to a method for producing flexible polyurethane foams based on polyoxymethylene-polyoxyalkylene block copolymers. The invention also relates to the use of the flexible polyurethane foams thus produced and their use for producing furniture upholstery, textile inlays, mattresses, automobile seats, headrests, armrests, sponges, foam sheets for use in automobile parts such as roof linings, door panel upholstery, seat covers and technical components. The invention finally relates to a two-component system for producing flexible polyurethane foams.

Abstract: The present invention relates to flame-retarded rigid polyurethane and/or polyurethane/polyisocyanurate foams (hereinafter individually or jointly also termed “rigid PUR/PIR foams”), and also to a process for producing rigid PUR/PIR foams that comprises reacting a reaction mixture comprising A1 an isocyanate-reactive component, A2 blowing agent A3 catalyst, A4 optionally additive, A5 flame retardant, and B an isocyanate component, and that is characterized in that the flame retardant A5 comprises at least two phosphorus-containing compounds, with one of the two compounds having the general formula R1R2(O)P—[O—R5—R6—O—P(O)R3]nR4 (I) or R1R2(O)P—[O—R5—X—R6—O—P(O)R3]nR4 (II), where X=an alkylene group, N—R7, O, CO, S, SO, SO2 OR P—R7, n=an integer from 0 to 4, preferably 1 or 2, R1, R2, R3, R4=in each case an aryl-O—, aryl- or alkyl groups, R5, R6=in each case an arylene group, R7=an aryl-O—, aryl- or alkyl group, where the at least one compound having the general formula (I) or (II) is used in an oligomer mixtu

Abstract: A method for producing a foam body (10) having an internal structure (100, 200, 300), comprising the steps: I) selecting an internal structure (100, 200, 300) to be formed in the foam body (10), the structure comprising a first polymer material; II) providing a foam body (10), the foam body (10) comprising a second polymer material which is different to the first polymer material; III) injecting, by means of an injection means (20), a predefined amount of a melt of the first polymer material or a predefined amount of a reaction mixture (30, 31, 32) which reacts to form the first polymer material at a predefined location inside the foam body (10), corresponding to a volume element of the internal structure (100, 200, 300); IV) repeating step III) for further predefined locations inside the foam body (10), corresponding to further volume elements of the internal structure (10), until the internal structure (10) is formed.

Abstract: The invention relates to flame-retardant flexible polyurethane foams with phosphazene and to methods for producing PUR flexible foams by reacting a component A containing: A1, an isocyanate-reactive component, A2, a propellant containing water, A3, optionally auxiliary agents and additives, and A4, a flame retardant, with B, an isocyanate component. The invention is characterized in that the flame retardant A4 contains a phosphazene according to the formula (I): [PmNmXk] (I), where X independently of one another represents O-aryl or NR-aryl, at least one aryl group is substituted, X can represent a bridge, R is selected from the group of H, C1-C4 alkyl, and aryl, and m represents a number from 1 to 5, particularly preferably 3 or 4, k depends on m and represents a number from 0 to 2m, and the phosphazene does not have any groups which are reactive towards isocyanates.

Abstract: The present invention relates to a method for producing flexible polyurethane foams based on polyoxymethylene-polyoxyalkylene block copolymers. The invention also relates to the use of the flexible polyurethane foams thus produced and their use for producing furniture upholstery, textile inlays, mattresses, automobile seats, headrests, armrests, sponges, foam sheets for use in automobile parts such as roof linings, door panel upholstery, seat covers and technical components. The invention finally relates to a two-component system for producing flexible polyurethane foams.

Abstract: The invention relates to flame-retardant flexible polyurethane foams with phosphazene and to methods for producing PUR flexible foams by reacting a component A containing: A1, an isocyanate-reactive component, A2, a propellant containing water, A3, optionally auxiliary agents and additives, and A4, a flame retardant, with B, an isocyanate component. The invention is characterized in that the flame retardant A4 contains a phosphazene according to the formula (I): [PmNmXk] (I), where X independently of one another represents O-aryl or NR-aryl, at least one aryl group is substituted, X can represent a bridge, R is selected from the group of H, C1-C4 alkyl, and aryl, and m represents a number from 1 to 5, particularly preferably 3 or 4, k depends on m and represents a number from 0 to 2m, and the phosphazene does not have any groups which are reactive towards isocyanates.

Abstract: A process for producing polyurethane foams comprising reacting an isocyanate component with a component that is reactive to isocyanates and comprises at least one polyethercarbonate polyol, wherein the reaction is performed in the presence of a component K, wherein the component K is selected from one or more compounds of the group consisting of K1 dicarbonyl compounds of the formula (II), excluding dicarbonyl compounds that are esters of mono- or polybasic carboxylic acids, (R2)x-(C?O)—(R1)n-(C?O)—(R3)y (II), K2 ?-keto nitriles of the formula (III), (R5)w-(C?O)—C(H)(R4)(-CN)(III), K3 discarbonyl compounds having the formula (IV), K4 hydroxycarboxylic acids, and K5 compounds of carboxylate anion and cation. Polyurethane foams produced by the process according to the present disclosure and the use thereof.

Abstract: The present invention relates to the use i) of one or more compounds selected from the group consisting of R1R2C?CR3—C(O)—O—R4??(I.), R5R6C?CR7—C(O)—O—R8—O—(O)C—R9C?CR10R11??(II.), R12R13C?CR14—C(O)—O—(O)C—R14C?CR13R12??(III.) and R15R16C?CR17—C(O)—NR18—R19??(IV.

Abstract: The invention relates to a method for producing an object comprising the the following steps: producing a shell, which surrounds a volume for holding a fluid, by means of an additive manufacturing method from a construction material; providing a reaction mixture comprising a polyisocyanate component and a polyol component in the volume and allowing the reaction mixture to react in the volume such that a polymer present at least partly in the volume is obtained. The reaction mixture has a setting time of ?2 minutes. An object that can be obtained by means of a method according to the invention comprises a shell, which defines a volume located within the shell, and a foam, which completely or partly fills the volume.

Abstract: The present invention relates to novel anisotropic composite materials and processes for production thereof. The composite materials are based on the crosslinking of polyisocyanates and feature good weathering stability.

Abstract: The present invention relates to a process for producing polyurethanes, preferably polyurethane foams, by reaction of compounds containing isocyanate-reactive hydrogen atoms with di- and/or polyisocyanates in the presence of one or more compounds selected from the group consisting of: NC—CHR1—CONR12—X??(I), NC—CHR2—CONR3-aryl??(II), NC—CHR4—CO2H??(III), [NC—CHR5—CO2]mYm+??(IV), wherein X represents NR6R7, OR8, CONR9R10 or COOR11, R1 to R12 each independently of one another represent H, an optionally substituted C1-C8 alkyl group or an optionally substituted aryl group, Y represents a monovalent or divalent cation and m represents 1 or 2. The present invention further relates to the polyurethanes obtainable from this process, and to the use of such polyurethanes, for example in the interior of automobiles.