(19)
(11) EP 0 421 971 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
17.07.1991 Bulletin 1991/29

(43) Date of publication A2:
10.04.1991 Bulletin 1991/15

(21) Application number: 90870158.4

(22) Date of filing: 02.10.1990
(51) International Patent Classification (IPC)5: D01F 6/80, D01F 1/04
(84) Designated Contracting States:
AT BE CH DE DK ES FR GB GR IT LI LU NL SE

(30) Priority: 05.10.1989 US 417406

(71) Applicant: MONSANTO COMPANY
St. Louis Missouri 63167 (US)

(72) Inventors:
  • Nicholson, James Ray
    Pensacola, Florida (US)
  • Osborn, Scott Eugene
    Cantonment, Florida 32533 (US)

(74) Representative: Ernst, Hubert et al
Monsanto Services International S.A. Patent Department Avenue de Tervuren 270-272 Letter Box No. 21
1150 Bruxelles
1150 Bruxelles (BE)


(56) References cited: : 
   
       


    (54) Pigmented stain resistant nylon fiber


    (57) Nylon carpet fibers are provided which have excellent resistance to being stained by acid dye food colorants. The fibers are prepared from pigmented nylon polymer that has been modified to contain aromatic sul­fonated units as an integral part of its polymer chain.





    Search report