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Fine fibers made from polymer crosslinked with resinous aldehyde composition

  • US 9,587,328 B2
  • Filed: 09/21/2012
  • Issued: 03/07/2017
  • Est. Priority Date: 09/21/2011
  • Status: Active Grant
First Claim
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1. A fine fiber comprising a core phase and a coating phase;

  • wherein the core phase comprises a polymer and the coating phase comprises a resinous aldehyde composition;

    wherein at least a portion of the polymer is crosslinked by the resinous aldehyde composition;

    wherein the resinous aldehyde composition is present in an amount of greater than or equal to 40 parts per weight per 100 parts per weight of the polymer and less than or equal to 100 parts by weight per 100 parts by weight of the polymer; and

    further wherein the fine fiber does not include polyvinyl alcohol crosslinked with melamine-formaldehyde.

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