Patent ID: 8388802
Filing Date: 2013-03-05
Classification: D21H,Y10T

Abstract:
1. A method of making a wallboard tape, wherein the wallboard tape comprises a paper substrate having a pH of from about 7.0 to about 10.0 and an internal bond of from about 25 to about 350 milli ft-lb/sq. in. as measured by TAPPI method 541.1 and comprising a plurality of cellulose fibers, a wet strength additive, and an alkaline sizing agent, the method comprising the step of; contacting the cellulose fibers consecutively and/or simultaneously with the wet strength additive in an amount of from 0.25 to 2.5 wt % based on the total weight of the paper substrate, and the alkaline sizing agent in an amount of from 0.05 to 1.5 wt % based on the total weight of the paper substrate.