D - Textiles – Paper – 01 – F
Patent
D - Textiles, Paper
01
F
18/588, 400/7808
D01F 1/04 (2006.01) D01F 6/80 (2006.01)
Patent
CA 2004955
Producer-colored nylon fibers which are stain-resistant to acid dyes are made by adding pigment to nylon copolymers containing 0.25-4.0 percent by weight of an aromatic sulfonate or an alkali metal salt thereof. In addition process advantages relating to the use of the same copolymers in making pigmented nylon fibers are also disclosed.
Anton Anthony
Parmelee William P.
Pearlman Paul S.
Sauerbrunn Linda H.
Scholler Diane M.
Bennett Jones Llp
E. I. Du Pont de Nemours And Company
Invista Technologies S.a.r.l.
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