Waterproofing membrane
AssigneeW.R. Grace & Co.-Conn.
InventorsSusnata Samanta, Robert A. Wiercinski
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Abstract
Disclosed is a waterproofing membrane that performs well at both high and low temperatures. The waterproofing membrane comprises a carrier support layer and an adhesive layer, wherein the adhesive layer comprises a pressure sensitive bitumen composition comprising bitumen (asphalt), synthetic rubber, high density polyethylene, amorphous polyolefin, ground vulcanized crumb rubber and, optionally, a plasticizer. The waterproofing membrane also may optionally include a removable release sheet on the adhesive layer.
Claims13
A waterproofing membrane in the form of a sheet-like laminate comprising a carrier support layer and an adhesive layer, wherein the adhesive layer comprises a pressure sensitive bitumen composition comprising bitumen, synthetic rubber, high density polyethylene, amorphous polyolefin, ground vulcanized crumb rubber and, optionally, a plasticizer.
Dependencies are inferred from the claim text.