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Method for coating continuous tow

  • US 5,164,229 A
  • Filed: 07/08/1991
  • Issued: 11/17/1992
  • Est. Priority Date: 07/08/1991
  • Status: Expired due to Fees
First Claim
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1. A method for coating fibers in a continuous tow which comprises the steps of:

  • (a) transporting a tow through an inorganic aqueous coating solution to provide a coated tow having a layer of uncured coating thereon,(b) transporting the coated tow through a hydrocarbon liquid which is immiscible with the coating solution and(c) calcining the coating on the tow to provide a coated tow having a layer of cured coating on the individual filaments thereof,wherein the tow has contact only with the coating solution and the immiscible liquid between the uncoated state of the tow prior to coating step (a) and the cured, coated state of the tow subsequent to calcining step (c).

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