(19)
(11) EP 0 123 667 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
05.02.1986 Bulletin 1986/06

(43) Date of publication A2:
31.10.1984 Bulletin 1984/44

(21) Application number: 84870051

(22) Date of filing: 10.04.1984
(84) Designated Contracting States:
AT BE CH DE FR GB IT LI LU NL SE

(30) Priority: 11.04.1983 US 484110

(71) Applicant: Monsanto Company
 ()

(72) Inventors:
  • Bach, Hartwig Christian
     ()
  • Black, William Bruce
     ()

   


(54) Conjugate filaments and process for producing same


(57) Conjugate filaments are prepared by a spinstretch process wherein two polymers having different terminal velocity distances are melt spun at a spinning speed of at least 1829 mpm to form filaments in which the polymers are arranged in an eccentric configuration along the length of the filaments and then the filaments are stretched in-line at a stretch ratio greater than 1.0 prior to their being collected. According to a preferred embodiment, the polymers consist of two nylon 66 polymers having different relative viscosities and the spinning conditions are selected to provide filaments having a high level of high-load crimp and a low level of boiling water shrinkage which renderthe filaments particularly useful in the construction of stretch garments and, especially, ladies' leg hose and pantyhose.






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