Process for increasing the flame resistance of polyethylene-containing hollowware
AssigneeBasell Polyolefin GmbH
InventorsWolfgang Rohde, Günther Pfirrmann, Peter Bauer, Andreas Haufe, Joachim Koch
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Abstract
A process for increasing the flame resistance of polyethylene-containing, single- or multilayer hollowware, in particular plastic fuel tanks, by heat treating the hollowware at 60-135° C.
Claims2
A process for increasing the flame resistance of single- or multilayer plastic fuel tanks containing at least one layer consisting of at least 90% by weight, based on the total weight of the layer, of ethylene homo- or copolymers having a density of 0.94-0.97 g/cm3 and a melt flow rate MFR 190/21.6 of 0.5-20 g/10 min, which comprises subjecting the plastic fuel tanks to heat treatment at 60-135° C.
Dependencies are inferred from the claim text.