HEAT INSULATION PRODUCT
heat insulation equipment. SUBSTANCE: invention provides heat insulation product consisting of profiled part based on rigid polyurethane foam and layered foil covering profiled part and including polyethylene. Covering foil is evacuated and tightly welded. Profiled part is distinguished by having de...
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Format: | Patent |
Sprache: | eng ; rus |
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Zusammenfassung: | heat insulation equipment. SUBSTANCE: invention provides heat insulation product consisting of profiled part based on rigid polyurethane foam and layered foil covering profiled part and including polyethylene. Covering foil is evacuated and tightly welded. Profiled part is distinguished by having density from 100 to 250 kg/cu.m and being manufactured by disintegration of rigid polyurethane foam to form powder or flakes, which powder or flakes are then bound with binding agents based on di- and/or polyisocyanate at simultaneous or successive pressing and molding. Part is finally freed from volatile components in the course of heating at 50 to 250 C, advantageously at 100 to 200 C. EFFECT: increased accuracy in achieving required size of parts. 4 cl |
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