FIXATION OF VACUUM INSULATION PANELS IN COOLING DEVICES

摘要

Use of a polyurethane (PU) foam reaction system comprising a) organic and/or modified organic polyisocyanates together with b) at least one relatively high molecular weight compound having at least two hydrogen atoms which are reactive toward isocyanate groups and optionally c) low molecular weight chain extenders and/or crosslinkers in the presence of d) blowing agents, e) catalysts, f) foam stabilizers and optionally g) further auxiliaries and/or additives, wherein the components a) to g) are selected such that a closed-cell polyurethane foam having a free-foamed bulk density of from 50 to 1100 g/l and a compressive strength of = 15 kPa is obtained and rigid integral foams are excluded, for the fixing of vacuum insulation panels (VIPs) over an area of the inside of an outer wall of a cooling apparatus and/or of the outside of a wall of the inner container of a cooling apparatus. In addition, a process for producing composites comprising a wall of a cooling apparatus, a PU foam layer derived from the abovementioned PU foam reaction system and at least one VIP is described.