摘要:
The present invention relates to a process for the production of a polyurethane foam, comprising the reaction of a polyisocyanate and a polyol in the presence of a blowing agent and of particles. These particles are obtained by reacting carrier particles with a functionalising reagent G, wherein G contains reactive groups G1 by means of which G can be chemically bonded to the surface of the carrier particles, and wherein G additionally contains reactive groups G2 which, under the conditions of the polyurethane foam production, are reactive towards the NCO groups of the polyisocyanate, or towards the OH groups of the polyol, or both, and wherein G1 and G2 may be the same or different. The present invention relates also to a polyurethane foam obtained by this process and to products containing such a polyurethane foam. The present invention relates also to a composition containing a polyol and these particles. The present invention relates also to a composition containing a polyisocyanate and these particles. Both the mentioned compositions can be used to produce a polyurethane foam according to the invention.
摘要:
The present invention relates to a process for the production of a polyurethane foam, comprising the reaction of a polyisocyanate and a polyol in the presence of a blowing agent and of particles. These particles are obtained by reacting (1) carrier particles with (2) a functionalising reagent G, wherein G contains reactive groups G1 by means of which G can be chemically bonded to the surface of the carrier particles, and wherein G also contains groups G2 which, under the conditions of the polyurethane foam production, are not reactive either towards the NCO groups of the polyisocyanate or towards the OH groups of the polyol, and wherein G1 and G2 may be the same or different. This invention relates also to a polyurethane foam produced by this process and to products containing such polyurethane foams. The present invention also relates to a composition containing a polyol and these particles. The present invention also relates to a composition containing a polyisocyanate and these particles. Both the mentioned compositions can be used to produce a polyurethane foam according to the invention.
摘要:
The invention describes a device for determining the gas content of a liquid. The device has at least a housing, a measuring chamber base with a cavity and a measuring chamber cover inside the housing. The measuring chamber base and the measuring chamber cover are each movable by a respective piston independently of one another along the longitudinal axis of the housing. The measuring chamber base and the measuring chamber cover form a measuring chamber in the housing. The measuring chamber base or the measuring chamber cover is connected to a pressure sensor and the housing has a liquid inlet and a liquid outlet.
摘要:
The invention relates to an installation and a process for the production of foam in a continuous block foam process in which the height of a foam-forming mixture along a conveyor is measured and a correcting variable as a function of deviation of the actual height risen from the standard height is determined.
摘要:
The invention relates to a device for machine-based processing of rapid polymeric reaction systems, particularly polyurethane systems, wherein a rapid formula change is possible with simultaneously low raw material consumption. The device according to the invention further requires little space, allowing for operation in a standing flue, for example.
摘要:
The present invention relates to a composite material, comprising a sandwich element (4) and a functional and/or decorative layer (3). The sandwich element (4) comprises at least one core layer (1), comprising an open-cell rigid foam, and at least one outer layer (2) located on each side of this core layer.
摘要:
The present invention relates to a photovoltaic solar module, a process for the preparation thereof, and a device for generating electric energy employing such a solar module. The photovoltaic solar module has a wholly or partly surrounding frame of polyurethane which is characterized in that said frame has an elongation at break of at least 50%, a modulus of elasticity of at least 30 N/mm2 and a coefficient of thermal expansion of up to α=80×10−6/K, the modulus of elasticity and the coefficient of thermal expansion each being measured parallel to the edges of the module.
摘要翻译:光伏太阳能组件技术领域本发明涉及一种光伏太阳能组件及其制造方法,以及使用这种太阳能电池组件的发电装置。 光伏太阳能模块具有全部或部分围绕的聚氨酯框架,其特征在于,所述框架具有至少50%的断裂伸长率,至少30N / mm 2的弹性模量和上升的热膨胀系数 至α= 80×10 -6 / K,弹性模量和热膨胀系数各自平行于模块的边缘测量。
摘要:
The invention relates to an installation and to a process for the production of foam in a continuous foaming process with the following steps,measuring actual surface temperatures of the foam or the facing layers along a conveying direction anddetermining a control variable for the foaming process as a function of a deviation of the actual surface temperatures from the nominal surface temperatures.
摘要:
The present invention relates to a roofing tile, a roofing shingle or facade element having a photovoltaic solar element and a method for producing such a roofing tile/roofing shingle/facade element.
摘要:
The solar module according to the invention consists of a transparent adhesive layer (1), in which the solar cells (3) that are interconnected by cell connectors (2) are embedded. A transparent, UV stable, thin front layer (4), composed for example of a thin pane of glass, is located above said adhesive layer. The supporting sandwich element (5), consisting of a nucleic layer (6) and glass fibre layers (7) bonded by means of polyurethane is located on the rear face. Fastening elements (8) and an electric socket (9) are integrated into the supporting sandwich element. A barrier film (10), which prevents the entry of water and oxygen, adjoins the sandwich element. The solar module has peripheral edge protection (11) consisting of elastomeric polyurethane, which prevents the lateral penetration of water, dirt and oxygen. The invention also relates to a method for producing the solar module.