Invention Grant
US08658252B2 Prefabricated membrane based on modified polyurethane bituminous binder and process for production 有权
基于改性聚氨酯沥青粘合剂的预制膜和生产工艺

Prefabricated membrane based on modified polyurethane bituminous binder and process for production
Abstract:
The present invention has for its object a prefabricated sealing membrane formed by a support, coated on at least one surface, and preferably impregnated throughout, with a modified bitumen base composition, characterized in that the thermoplastic bituminous composition for coating and/or impregnation is a bituminous binder modified by a thermoplastic polyurethane having the following weight proportion: 40 to 90% bitumen, 10 to 50% thermoplastic polyurethane, 0 to 10% aromatic oil, 0 to 50% filler, 0 to 0.5% catalyst.
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