Wholly aromatic polyamide fiber with improved dyeability

Details Wholly aromatic polyamide fiber with improved dyeability Wholly aromatic polyamide fiber with improved dyeability

1995-03-30

1998-03-03

Hampton-Hightower, P.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

528310, 528322, 528335, 528480, 528487, 528488, 811554, 811563, 8911, 428357, 428364, 428395, C08G 6932

Patent

active

057235708

ABSTRACT:
A wholly aromatic polyamide fiber containing above about 600 ppm (about 0.2 mole percent) of sulfonate in the polymer main chain is provided. The sulfonate is represented by the general formulas (III) or (IV): ##STR1## where M is hydrogen, a metal cation, or a quaternary ammonium ion. The fiber exhibits excellent dyeability and can be cation-dyed without the use of a dye carrier.

REFERENCES:
patent: 3287324 (1966-11-01), Sweeney
patent: 3886251 (1975-05-01), Sekiguchi et al.
patent: 3888821 (1975-06-01), Milford, Jr.
patent: 4317902 (1982-03-01), Hinderer
patent: 5198119 (1993-03-01), Berger et al.
patent: 5216114 (1993-06-01), Walles et al.
patent: 5322922 (1994-06-01), Berger et al.

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