Patent ID: 8871058
Filing Date: 2014-10-28
Classification: D21H

Abstract:
1. An article comprising a fire resistant pulp fiber web having a pH of from about 5 to about 9, and comprising: an at least partially delignified pulp fiber web having a Kappa number of less than about 130; and a fire retardant component present in and/or on the pulp fiber web in an amount of at least about 20 lbs fire retardant component per ton of the pulp fiber web, the fire retardant component comprising: wherein the fire retardant component is in an amount and is distributed in and/or on the pulp fiber web in a manner so that the fire resistant pulp fiber web passes one or more of the following tests: the UL 94 HBF test, the Horizontal Burn Through test, or the ASTM D 5132-04 test.