Method of coating organic fibers with polytetrafluoroethylene

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4232087
SERIAL NO

05930805

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The disclosure is of a method for improving the acid resistance, hydrophobicity, oleophobicity and dust or dirt release properties of synthetic organic fibers. The method comprises coating the fibers with an aqueous dispersion of polytetrafluoroethylene particles in the presence of a water soluble, chromium complex of a long chain fluorochemical. The method is particularly advantageous for improving polyaramid fibers such as Nomex fibers in fabrics to be used as a filter means.

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Patent Owner(s)

  • SHAWMUT CAPITAL CORPORATION;TEX TECH INDUSTRIES, INC.

International Classification(s)

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  • 1978 Application Filing Year
  • D02G Class
  • 92 Applications Filed
  • 0 Patents Issued To-Date
  • 0 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances19780255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Trask, Elwood G Auburn, ME 8 259

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Patent Citation Ranking

  • 32 Citation Count
  • D02G Class
  • 0 % this patent is cited more than
  • 45 Age
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