Patents by Inventor Walter L. Vaughn

Walter L. Vaughn has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process and composition for water- and oil-proofing textiles
    Patent number: 3955027
    Abstract: An improved process and composition for water- and oil-proofing textiles which comprises treating a textile with a polymeric fluorocarbon finishing agent and at least one reactive polymer extender of the formula ##EQU1## and curing the treated textile at from 80.degree.C to 170.degree.C for 0.1 to 60 minutes; wherein C.sub.1 and C.sub.2 are carbon atoms of a polyalkylene copolymer chain, R and R' are hydrogen, alkyl, phenyl, --COOH or a segment of a polyalkylene chain, R.sub.1 and R.sub.2 are alkyl, aryl, aralkyl, alkaryl, or the like, of up to about 20 carbon atoms, and X is a halogen. The treatment in accordance with the present invention results in synergistic improvements in the oil- and/or water-repellent properties of the conventional fluorocarbon agents.
    Type: Grant
    Filed: August 15, 1974
    Date of Patent: May 4, 1976
    Assignee: The Dow Chemical Company
    Inventor: Walter L. Vaughn