Spunbond nonwovens made from high-crystallinity propylene polymer
AssigneeTotal Petrochemicals Research Feluy
InventorsAlain Standaert, Hugues Haubruge, GuilLaume Pavy, Jerome Gromada
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Abstract
The present invention relates to fibers comprising at least 98 wt % of a propylene polymer having, in particular, a specific molecular weight distribution Mw/Mn and xylene solubles content. The present invention also relates to nonwovens, laminates and composites comprising such fibers. Furthermore, the present invention relates to a process for producing such fibers, nonwovens, laminates and composites.
Claims13
1-12. (canceled)
Fibers comprising at least 98.0 wt % of a propylene polymer, said propylene polymer having melt flow index in the range from 5 dg/min to 2000 dg/min (measured according to ISO 1133, condition L, 2.16 kg, 230° C.), a molecular weight distribution Mw/Mn of at least 4.0 and a xylene solubles content of at most 3.0 wt % relative to the total weight of said propylene polymer.
Dependencies are inferred from the claim text.