(19)
(11) EP 0 270 213 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
02.08.1989 Bulletin 1989/31

(43) Date of publication A2:
08.06.1988 Bulletin 1988/23

(21) Application number: 87308502.1

(22) Date of filing: 25.09.1987
(51) International Patent Classification (IPC)4C10M 105/34, D06M 13/10
(84) Designated Contracting States:
CH DE ES FR GB LI NL

(30) Priority: 26.09.1986 US 911678

(71) Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
Wilmington Delaware 19898 (US)

(72) Inventors:
  • Andrews, Walter Ronald, Jr.
    Richmond Virginia 23234 (US)
  • Day, Fleming Howard
    Greenville North Carolina 27834 (US)

(74) Representative: Jones, Alan John et al
CARPMAELS & RANSFORD 43 Bloomsbury Square
London, WC1A 2RA
London, WC1A 2RA (GB)


(56) References cited: : 
   
     
    Remarks:
    The title of the invention has been amended (Guidelines for Examination in the EPO, A-III, 7.3).
     


    (54) Spin finish composition for tyre yarns


    (57) A polyamide yarn having on the surface of the polyamide yarn a hydrophobic organic ester dip penetration regulator having a melting point greater than 27°C and convertible by conventional means into a tire cord having low stiffness and high air permeability and a process for making polymeric tire yarns is disclosed.





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