Heat-resistant and flame-retardant or flameproof PUR hot melt adhesive

摘要

The invention relates to a heat-resistant and flameproof, moisture-reactive PUR hot melt adhesive having a polyester or a polyether as its polyhydroxy component. The polyhydroxy component is segmented by a brominated bisphenol-A-diol. Furthermore, the brominated bisphenol-A-diol can be contained in the PUR hot melt adhesive distributed in block-like form or statistically.;The invention further relates to a heat protection laminate consisting of at least two material layers and an adhesive mixture bonding the two layers together which laminate is used for producing labour safety materials which are highly heat resistant and flexible. The adhesive mixture of this laminate contains the following components:a) a heat resistant, moisture-reactive PUR hot melt adhesive containing a halogenated diol compound,b) a phosphoric acid ester,c) a multifunctional isocyanate compound.;The interaction of the heat-resistant, moisture-reactive PUR hot melt adhesive containing brominated bisphenol-A-diol as its diol component, the phosphoric acid ester and the multi-functional isocyanate in the adhesive mixture produces heat resistance and high flexibility, in particular in a heat protection laminate.;The adhesive mixture according to the invention can be applied directly onto foils. Subsequently, tissue is applied onto the foil pretreated in this manner. The adhesive mixture cures under the influence of moisture.