Bitumen adhesive and waterproofing membranes containing same.

摘要

Pressure sensitive bitumen-based adhesive compositions are provided which comprise bitumen, oil, an ionomeric elastomer, and gilsonite. The adhesives are particularly useful as self adherent waterproofing layers in roofing. The presence of gilsonite can result in substantial increases in the shear strength of these adhesives at the relatively high temperatures encountered in roofing applications.

Also provided are waterproofing membranes comprising the inventive adhesive compositions.