摘要:
The present invention relates to a polyurethane foam which can be obtained by reacting at least one polyether polyol as component (A), at least one polyether polyol based on at least one amine as component (B), at least one polyester polyol as component (C) and at least one polyisocyanate as component (D), in the presence of at least one catalyst selected from the group consisting of salts of carboxylic acids having from 1 to 20 carbon atoms, amine-comprising compounds and mixtures thereof as component (E) and at least one blowing agent as component (F), wherein the ratio of OCN groups to OH groups (ISO index) is from 140 to 180. The present invention further relates to a process for producing said polyurethane foam, its use for insulation, in particular for the insulation of pipes, and also pipe insulation comprising a polyurethane foam according to the invention.
摘要:
The present invention relates to a radiator body comprising at least one radiant panel having at least one structure suitable for receiving at least one tube, at least one tube located in the structure in order to transport a heating or cooling medium, at least two side parts and at least one layer insulating the radiator body, wherein the ratio of the average cross-sectional area of the at least one radiant panel to the cross-sectional area of the at least two side parts is at least 3 and/or the at least two side parts are each decoupled thermally from the at least one radiant panel, as well as to a method for producing the radiant panel according to the invention and to the use of such a radiant panel for heating or cooling.
摘要:
The present invention relates to a rigid polyurethane foam in which rigid polyurethane foam constituents are embedded in a polyurethane matrix, articles which are enveloped by such a foam for insulation and corresponding production processes.
摘要:
A process for the batchwise production of insulated pipes, comprising the steps: 1) provision of medium pipe and casing, the medium pipe being arranged inside the casing, 2) production of a polyisocyanurate foam by reacting an isocyanate component (a) with a polyol mixture (b) between medium pipe and casing, wherein the polyol mixture (b) comprises no polyester alcohols and has a viscosity of less than 1300 mPa·s, measured according to DIN 53019 at 20° C.
摘要:
The present invention relates to a continuous process for producing a profile comprising at least one core made of a polyurethane foam or a mixture comprising a polyurethane foam, at least one jacket made of at least one thermoplastic material, and optionally at least one foil between core and jacket, to a profile produced via said process, to the use of this profile for producing windowframes, doorframes, or in the fitting-out of interiors, or in apparatuses in which, during operation, temperature differences arise between interior space and exterior space, and also to an apparatus for carrying out the process of the invention.
摘要:
A process for the batchwise production of insulated pipes, comprising the steps:1) provision of medium pipe and casing, the medium pipe being arranged inside the casing,2) production of a polyisocyanurate foam by reacting an isocyanate component (a) with a polyol mixture (b) between medium pipe and casing,wherein the polyol mixture (b) comprises no polyester alcohols and has a viscosity of less than 1300 mPa·s, measured according to DIN 53019 at 20° C.
摘要:
The present invention relates to a continuous process for producing a profile comprising at least one core made of a polyurethane foam or a mixture comprising a polyurethane foam, at least one jacket made of at least one thermoplastic material, and optionally at least one foil between core and jacket, to a profile produced via said process, to the use of this profile for producing windowframes, doorframes, or in the fitting-out of interiors, or in apparatuses in which, during operation, temperature differences arise between interior space and exterior space, and also to an apparatus for carrying out the process of the invention.
摘要:
The invention relates to the envelopment of a connection of at least two pipes or parts thereof by an open-celled rigid foam, the production of such an envelope and also the use of open-celled rigid foam for protecting connections of two pipes.