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US 5,330,834 AGranted
Dye-retarded nylon 6/6,6 block copolymer fibers
AssigneeE. I. Du Pont de Nemours and Company
InventorWilliam T. Windley
Life of this patent
Estimating the term…
Abstract
A fiber having a reduced dye rate compared to nylon 6 formed from a block copolymer of 2-30 wt % nylon 6,6 and 70-98 wt % nylon 6 which fiber has a stain resist applied thereto.
Claims5
A fiber having a surface and comprising a block copolymer of 2 to 30 weight percent poly(hexamethylene adipamide) and 70 to 98 weight percent poly(.epsilon.-caprolactam) having both a first melting point near that of poly(hexamethylene adipamide) and a second melting point near that of poly(.epsilon.-caprolactam) and having a stainblocker applied to the surface thereof.
Dependencies are inferred from the claim text.