Patent ID: 8453405
Filing Date: 2013-06-04
Classification: C08K,C09J,E04B,Y10T

Abstract:
1. A waterproofing membrane consisting of a flexible carrier sheet with two opposed surfaces, an approximately uniform layer of a waterproofing pressure sensitive adhesive on one surface of the carrier sheet such that the pressure sensitive adhesive has an average thickness in the range of 75 μm to 500 μm and has an outer exposed surface, and substantially reflective inorganic particles adhered directly to the outer exposed surface of the pressure sensitive adhesive, wherein the substantially reflective inorganic particles have an average diameter of about 100 μm to about 600 μm that is approximately equal to or greater than the average thickness of the pressure sensitive adhesive layer, wherein the substantially reflective particles cover approximately 80% to 100% of the outer exposed surface of the pressure sensitive adhesive so as to provide the membrane with a substantially reflective surface that exhibits a whiteness value greater than 65%, and wherein the waterproofing membrane does not include a removable release sheet.