Patent ID: 8142903
Filing Date: 2012-03-27
Classification: B32B,E04C,Y10T

Abstract:
1. A construction board comprising: a cellular body; and at least one cellulosic facer, where the at least one cellulosic facer is characterized by a burst strength of at least 250 kPa pursuant to T403 om-02 (TAPPI), where the at least one cellulosic facer is characterized by a basis weight of least 200 grams per square meter pursuant to T410 om-02 (TAPPI), where the at least one cellulosic facer has a thickness of from about 5 to about 20 mils, where the at least one cellulosic facer is characterized by a machine direction tensile strength pursuant to T494 om-01 (TAPPI) of at least 7.5 KN/m, and wherein the thickness of the at least one cellulosic facer is uniform within about ±3 mil.