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US 11,499,250 B2Granted
Bicomponent spandex
AssigneeThe LYCRA Company LLC
InventorsSteven W. Smith, Hong Liu, David A Wilson, James B Elmore
Life of this patent
Estimating the term…
Abstract
An elastic multiple component fiber comprising a cross-section, wherein at least a first region of said cross-section comprises a polyurethaneurea composition; and comprising a second region.
Claims39
An elastic multiple component fiber comprising a cross-section, wherein at least a first region of said cross-section comprises a polyurethaneurea composition;
- and comprising a second region and a third region comprising a boundary region between said first region and said second region that includes a blend of said first region and said second region.
An elastic multiple component solution-spun fiber comprising a cross-section, wherein at least a first region of said cross-section comprises a polyurethane or polyurethaneurea composition;
- and including a second region and a third region comprising a boundary region between said first region and said second region that includes a blend of said first region and said second region.
Dependencies are inferred from the claim text.