Carboxylic Acid, Ester, Or Salt Thereof Dnrm Patents (Class 523/426)
  • Patent number: 4325857
    Abstract: A durable antisoiling coating composition for textile filaments and articles made therefrom comprises a perfluoroalkyl ester of a citric acid urethane and fluorinated alcohols in combination with a modified epoxy resin which is the reaction product of a carboxyl-functional vinyl polymer, an epoxy resin and a tertiary amine. The composition can be applied as an aqueous dispersion, including a non-ionic textile lubricant based on poly(ethylene glycol). The dispersion can be used as a spin finish to provide durable protection to filaments, particularly nylon filaments.
    Type: Grant
    Filed: May 13, 1980
    Date of Patent: April 20, 1982
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Nitin J. Champaneria, Lee R. Harper, Edward A. Hosegood