Abstract: A composite component having a piece of material which is elastic in particular and is composed of a foam material or an elastomer material or a silicone, where the piece of material is bonded, inextricably in particular, to a film sensor for measurement of one or more parameters, especially parameters of a human or animal body, having a piece of film with at least one electrical wire disposed on said piece of film, and having at least one measurement sensor which is preferably disposed on said piece of film and is connected to the electrical wire in an electrically conductive manner.

Abstract: A sensor unit for securing to a human or animal body, especially to the skin of the body, having a sensor portion that has a film sensor for measurement of one or more body parameters, having a piece of film that has at least one electrical wire disposed on said piece of film and having a measurement sensor that has electrically conductive connection to said wire and is preferably disposed on said piece of film, and having an electronics portion which is connected, preferably releasably, to said sensor portion and has an electronics unit for operation of said film sensor.

Abstract: The invention provides a process for producing polyurethane foams or hydrogels, in which compositions including A) isocyanate-functional prepolymers obtainable by the reaction of A1) low molecular weight diisocyanates of molar mass from 140 to 278 g/mol, with A2) polyalkylene oxides having an OH functionality of two or more, A3) more than 1% by weight of C2 to C12 diols based on total amount of isocyanate-reactive components wherein component A3) differs from component A2), B) water or a nonaqueous isocyanate-reactive component in an amount of at least 2% by weight, based on the total weight of the composition are provided, optionally foamed and cured wherein the isocyanate containing components do not exceed a residual diisocyanate content of 8% by weight, based on the total amount of the polyurethane foam or hydrogel. These foams or hydrogels are used in wound dressings, cosmetic articles or incontinence products.

Abstract: The invention relates to a process for producing a composite material for wound dressings, comprising the following steps: (I) providing a first film, having a first film surface and a second film surface running virtually parallel to the first film surface: (II) mixing an NCO-terminated polyurethane prepolymer with at least water to give a polyurethane prepolymer/water mixture, (III) applying the polyurethane prepolymer/water mixture to at least one part of the first film surface to form a layer, the layer having a first layer surface which is in contact with the first film via at least one part of the first film surface, and having a second layer surface which runs virtually parallel to the first layer surface; (IV) covering at least one part of the second layer surface with a further film, wherein the bond strength between the first film and the layer and also between the layer and the further film is greater in each case than the tensile strain at break of the layer.

Abstract: The invention relates to a foamed, fissure-free skin-compatible article, produced by mixing a first polyurethane dispersion (A) with at least one second polyurethane dispersion (B) which differs from the first polyurethane dispersion (A), optionally with the addition of other additives, then by foaming and subsequently drying the mixture. The invention also relates to a process for preparing the foamed article and to the use thereof.

Abstract: The invention provides a process for producing polyurethane foams, in which compositions comprising A) isocyanate-functional prepolymers obtainable by the reaction of A1) low molecular weight diisocyanates of molar mass from 140 to 278 g/mol with A2) polyalkylene oxides having an OH functionality of two or more, A3) optionally further isocyanate-reactive components not covered by A2), B) water in an amount of at least 2% by weight, based on the total weight of the composition; C) optionally heterocyclic 4-membered or 6-membered ring oligomers of low molecular weight diisocyanates having a molar mass of 140 to 278 g/mol; D) optionally catalysts; E) optionally salts of weak acids, the corresponding free acids of which have a pKA in water at 25° C. of ?3.0 and ?14.

Abstract: The present invention relates to a viscoelastic element comprising a polyurethane foam, wherein the polyurethane foam can be obtained by reacting at least one isocyanate-functional prepolymer (VI) in the presence of a special polyurethane urea dispersion (V2), wherein the reaction of the prepolymer (VI) takes place in the presence of the polyurethane urea (V2) with a medium containing isocyanate-reactive groups. The invention also relates to a method for producing the viscoelastic element and to the use thereof.

Abstract: The invention relates to a method for producing a holographic optical element by providing a recording stack comprising at least one recording element laminated on at least one supporting element, irradiating at least a part of the recording stack with at least one recording beam in an irradiating step, wherein during the irradiating step, the recording stack bends, providing a bending deviation threshold for the recording stack, and adjusting at least one first process parameter such that an expected maximum bending deviation of the recording stack does not exceed the bending deviation threshold, wherein the at least one first process parameter influences the bending behaviour of the recording stack during the irradiating step.

Abstract: The invention relates to a contact adhesive product, comprising a substrate and a polyurethane resin, which can be obtained by reacting at least A) an aliphatic polyisocyanate component having an average isocyanate functionality of ?1.8 and ?2.

Abstract: The present invention relates to an adhesive producible from an aqueous polyurethaneurea dispersion comprising an amorphous polyurethaneurea (V1) obtainable by reacting at least A) one aliphatic, cycloaliphatic or araliphatic polyisocyanate component having an average isocyanate functionality of ?1.8 and ?2.

Abstract: The present invention relates to a viscoelastic element comprising a polyurethane foam, wherein the polyurethane foam can be obtained by reacting at least one isocyanate-functional prepolymer (V1) in the presence of a special polyurethane urea dispersion (V2), wherein the reaction of the prepolymer (V1) takes place in the presence of the polyurethane urea (V2) with a medium containing isocyanate-reactive groups. The invention also relates to a method for producing the viscoelastic element and to the use thereof.

Abstract: The present invention relates to an adhesive producible from an aqueous polyurethaneurea dispersion comprising an amorphous polyurethaneurea (V1) obtainable by reacting at least A) one aliphatic, cycloaliphatic or araliphatic polyisocyanate component having an average isocyanate functionality of ?1.8 and ?2.

Abstract: The invention relates to a method for selecting compounds which can be used as additives in photopolymer formulations for producing light holographic media, and to photopolymer formulations which contain at least one softener which are selected according to the claimed method. The invention also relates to the use of photopolymer formulations for producing holographic media.

Abstract: The invention relates to a process for producing a composite material for wound dressings, comprising the following steps: (I) providing a first film, having a first film surface and a second film surface running virtually parallel to the first film surface; (II) mixing an NCO-terminated polyurethane prepolymer with at least water to give a polyurethane prepolymer/water mixture, (III) applying the polyurethane prepolymer/water mixture to at least one part of the first film surface to form a layer, the layer having a first layer surface which is in contact with the first film via at least one part of the first film surface, and having a second layer surface which runs virtually parallel to the first layer surface; (IV) covering at least one part of the second layer surface with a further film, wherein the bond strength between the first film and the layer and also between the layer and the further film is greater in each case than the tensile strain at break of the layer.

Abstract: The invention relates to a method for selecting compounds which can be used as additives in photopolymer formulations for producing light holographic media, and to photopolymer formulations which contain at least one softener which are selected according to the claimed method. The invention also relates to the use of photopolymer formulations for producing holographic media.

Abstract: The invention relates to a contact adhesive product, comprising a substrate and a polyurethane resin, which can be obtained by reacting at least A) an aliphatic polyisocyanate component having an average isocyanate functionality of ?1.8 and ?2.

Abstract: The invention relates to an indirect lighting arrangement (2, 2.1, 2.2, 2.3, 2.4, 2.5) comprising at least one cylindrical waveguide (4). At least one end (12.1, 12.2) of the cylindrical waveguide (4) is designed to couple light from a first light source (1) into the cylindrical waveguide (4), and the lateral surface (10) of the cylindrical wave guide (4) has a coupling section (6) which is designed to optically couple the cylindrical waveguide (4) to an arrangeable plate-shaped waveguide (16). At least the coupling section (6) has at least one holographic optical element (8) which is designed to emit light from the cylindrical waveguide (4) into the arrangeable plate-shaped waveguide (16).

Abstract: The invention relates to an adhesive that can be produced from an aqueous polyurethane urea dispersion, containing an amorphous polyurethane urea, which can be obtained by reacting at least A) an aliphatic polyisocyanate component having an average isocyanate functionality of ?1.8 and ?2.

Abstract: The invention provides a process for producing polyurethane foams, the foams thus produced and the uses thereof. In the inventive process compositions comprising A) isocyanate-functional prepolymers obtainable by the reaction of A1) aliphatic, low molecular weight diisocyanates of molar mass from 140 to 278 g/mol with A2) polyalkylene oxides having an OH functionality of two or more, A3) optionally further isocyanate-reactive components not covered by A2), B) water in an amount of at least 2% by weight, based on the total weight of the composition; C) optionally heterocyclic 4-membered or 6-membered ring oligomers of low molecular weight, aliphatic diisocyanates having a molar mass of 140 to 278 g/mol; D) optionally catalysts; E) optionally salts of weak acids, the corresponding free acids of which have a pKA in water at 25° C. of ?3.0 and ?14.

Abstract: The invention provides a process for producing polyurethane foams, the foams thus produced and the uses thereof. In the inventive process compositions comprising A) isocyanate-functional prepolymers obtainable by the reaction of A1) aliphatic, low molecular weight diisocyanates of molar mass from 140 to 278 g/mol with A2) polyalkylene oxides having an OH functionality of two or more, A3) optionally further isocyanate-reactive components not covered by A2), B) water in an amount of at least 2% by weight, based on the total weight of the composition; C) optionally heterocyclic 4-membered or 6-membered ring oligomers of low molecular weight, aliphatic diisocyanates having a molar mass of 140 to 278 g/mol; D) optionally catalysts; E) optionally salts of weak acids, the corresponding free acids of which have a pKA in water at 25° C. of ?3.0 and ?14.