The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 03, 1998
Filed:
Mar. 30, 1995
Applicant:
Inventors:
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528337 ; 528310 ; 528322 ; 528335 ; 528480 ; 528487 ; 528488 ; 811554 ; 811563 ; 8911 ; 428357 ; 428364 ; 428395 ;
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.