ADDITION OF ENDOTHERMIC FIRE RETARDANTS TO PROVIDE NEAR NEUTRAL PH PULP FIBER WEBS
摘要
<p>A process in which an at least partially delignified pulp fiber web having a Kappa number of less than about 130 is treated with an aqueous endothermic fire retardant solution having a pH of about 10 or less. The treated pulp fiber web has a near neutral pH of from about 5 to about 9, and is treated with at least about 20 lbs of endothermic fire retardants per ton of the pulp fiber web, with at least about 5% of the total amount of endothermic fire retardants being added at a point prior to when the pulp fiber web is formed. Also a fire resistant pulp fiber web having a near neutral pH.</p>
申请公布号
WO2012018746(A1)
申请公布日期
2012.02.09
申请号
WO2011US46169
申请日期
2011.08.02
申请人
INTERNATIONAL PAPER COMPANY;SEALEY, JAMES, E.;FIELDS, BRENT, ALAN