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.
本发明涉及一种以聚
酯或聚醚为聚羟基成分的耐热、阻燃、防潮 PUR 热熔胶。聚羟基成分由
溴化双
酚-A
-二醇分割而成。此外,
溴化双
酚-A
-二醇可包含在以块状或统计形式分布的 PUR 热熔胶中。
本发明还涉及一种防热层压材料,它由至少两层材料和将两层材料粘合在一起的胶粘剂混合物组成,这种层压材料可用于生产具有高度耐热性和柔韧性的劳动安全材料。这种层压材料的粘合剂混合物包含以下成分:
a) 一种含有卤化二元醇化合物的耐热、湿反应 PUR 热熔粘合剂、
b) 一种
磷酸酯
c) 一种多功能
异氰酸酯化合物。
在粘合剂混合物中,含有
溴化双
酚-A
-二醇作为二元醇成分的耐热、湿气反应型 PUR 热熔粘合剂、
磷酸酯和多功能
异氰酸酯的相互作用产生耐热性和高柔韧性,特别是在防热层压板中。
本发明的胶粘剂混合物可直接涂抹在
铝箔上。然后,再将纸巾涂抹在以这种方式预处理过的箔上。胶粘剂混合物在湿气的影响下固化。