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US 2011/0081533 A1Published application
Nonwoven Fire Barrier with Enhanced Char Performance
OwnerSang-Hoon Lim, Andrea Pianainventors
Life of this patent
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Abstract
A nonwoven is formed from basalt fiber and/or grass fiber together with cellulosic fiber. The nonwoven is treated with fire resistant chemicals. The nonwoven has enhanced fire barrier performance, such as char elongation and char strength.
Claims15
A nonwoven, comprising flame retardant (FR) cellulosic fiber and performance-enhancing fiber, produced by the process of:
- forming a nonwoven from at least one untreated cellulosic fiber and at least one performance-enhancing fiber;
- applying one or more fire retardant chemicals to the nonwoven;
- and
- drying the nonwoven.
1 more element
A method of making a fire resistant nonwoven with enhanced char strength, comprising the steps of:
- forming a nonwoven from at least one untreated cellulosic fiber and at least one performance-enhancing fiber;
- applying one or more fire retardant chemicals to the nonwoven;
- and
- drying the nonwoven.
1 more element
Dependencies are inferred from the claim text.