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    • 4. 发明授权
    • Nonwoven highloft flame barrier
    • 无纺高耸的火焰屏障
    • US07259117B2
    • 2007-08-21
    • US10474395
    • 2002-09-11
    • Dennis L. MaterAlan C. Handermann
    • Dennis L. MaterAlan C. Handermann
    • D04H1/00D04H13/00D04H3/00D04H5/00
    • A47C31/001D04H1/4382D10B2331/021Y10T442/674Y10T442/696
    • The invention relates to a nonwoven highloft flame barrier well suited for use in mattress, upholstered furniture and other end use applications where a highloft nonwoven material is desired for flame barrier purposes. A preferred nonwoven highloft flame barrier of the invention comprises a blend of fibers, that are inherently fire resistant and essentially nonshrinking to direct flame, with melamine fibers being preferred either alone or in conjunction with, for example, viscose rayon based fibers, fibers extruded from polymers made with halogenated monomers and preferably low-melt binder fibers, which are thermally activated in a highloft manufacturing process to provide low bulk density, resiliency and insulation properties in the end use application. The preferred fiber blends are designed to withstand extended periods of time exposed to open flame with minimal shrinkage of the char barrier; thereby preventing a flames from “breaking through” the char barrier and igniting underlying materials. Other component fibers can also, optionally, be included such as: natural fibers, to improve product economics in the end use application. The highloft flame barrier of this invention also allows for the manufacture of open flame resistant composite articles, while also permitting the continued use of conventional non-flame retardant dress cover fabrics, conventional non-flame retardant fiberfills and conventional non-flame retardant polyurethane foams.
    • 本发明涉及一种非常适合用于床垫,软垫家具和其他最终用途的非织造高层隔热屏障,其中需要高度非织造材料用于阻火目的。 本发明优选的非织造高温火焰屏障包括纤维的共混物,其本质上是耐火的,并且基本上不直接引燃火焰,三聚氰胺纤维优选单独使用或与例如粘胶人造丝基纤维,从 用卤化单体制成的聚合物,优选低熔点粘合剂纤维,其在高层制造工艺中被热活化以在最终用途应用中提供低体积密度,弹性和绝缘性能。 优选的纤维共混物被设计成能够承受长时间暴露于明火的时间,同时具有最小的炭屏障收缩; 从而防止火焰“打破”焦炭障碍并点燃下层材料。 也可以包括其它组分纤维,例如:天然纤维,以提高最终用途应用中的产品经济性。 本发明的高挡火焰屏障还允许制造耐燃性复合制品,同时还允许继续使用常规的非阻燃性着装罩面料,常规非阻燃纤维填料和常规的非阻燃聚氨酯泡沫。