Patent ID: 9394464
Filing Date: 2016-07-19
CPC Classification: C09J,E04B,Y10T

Claim Text:
1. A waterproofing membrane in the form of a sheet-like laminate comprising: a carrier sheet, a pressure sensitive adhesive layer on one surface of the carrier sheet, and a protective coating layer on the adhesive layer, wherein the protective coating layer has a penetration ≦20 dmm (ASTM D5), and a reflectivity ≧55%, measured by a reflectometer perpendicular to a surface illuminated at a 45° angle, and wherein the protective coating layer comprises an acrylic polymer with two or more distinct polymer domains, including a first polymer domain and a second polymer domain, wherein (a) the first polymer domain is softer than the second polymer domain, and/or (b) the first polymer domain has a lower glass transition temperature (Tg) than the glass transition temperature of the second polymer domain.