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Assignee3M Innovative Properties Company
InventorsMichael R. Berrigan, Anne N. De Rovere, William T. Fay, Jerald W. Hall JR., Pamela A. Percha
Estimating the term…
Nonwoven fibrous webs including amorphous polymeric fibers with improved and/or more convenient bondability are disclosed. The nonwoven fibrous webs may include only amorphous polymeric fibers or they may include additional components in addition to amorphous polymeric fibers. The amorphous polymeric fibers within the web may be autogeneously bonded or autogeneously bondable. The amorphous polymeric fibers may be characterized as varying in morphology over the length of continuous fibers so as to provide longitudinal segments that differ from one another in softening characteristics during a selected bonding operation.
A nonwoven fibrous web comprising amorphous polymeric fibers that are autogeneously bonded within the web, wherein the autogeneously bonded amorphous polymeric fibers retain a fibrous shape after being autogeneously bonded.
A nonwoven fibrous web comprising amorphous polymeric fibers, wherein at least some continuous fibers of the amorphous polymeric fibers comprise one or more active longitudinal segments that bond to longitudinal segments of the same or others of the amorphous polymeric fibers, and further wherein the amorphous polymeric fibers comprise a fibrous shape within the web.
A nonwoven fibrous web comprising amorphous polymeric fibers, wherein at least some continuous fibers of the amorphous polymeric fibers exhibit at least one variation in morphology along their length such that the at least some continuous fibers comprise one or more active longitudinal segments that bond to longitudinal segments of the same or others of the amorphous polymeric fibers, and wherein the amorphous polymeric fibers comprise a fibrous shape within the web.
A method of making a nonwoven fibrous web, the method comprising:
Dependencies are inferred from the claim text.