发明授权
US6090731A High density nonwoven filter media 有权
高密度无纺布过滤介质

High density nonwoven filter media
摘要:
The invention provides a sheet filter medium having autogenously bonded uncrimped conjugate fibers which contain a polyolefin and another thermoplastic polymer that have different melting points. The filter medium has a density between about 0.07 g/cm.sup.3 and about 0.2 g/cm.sup.3. The invention additionally provides a three-dimensionally thermoformed filter medium that has a density between about 0.07 g/cm.sup.3 and about 0.5 g/cm.sup.3.
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