Patents by Inventor Marilyn M. Smith

Marilyn M. Smith 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 for imparting durable flame-retardancy to cotton-polyester blended textiles
    Patent number: 4084027
    Abstract: Stable oil and water emulsions, prepared such that a water-soluble phosphorus monomer, a melamine-formaldehyde resin, and an emulsifier of high HLB value are in the water phase while an oil soluble halogenated phosphate and emulsifier of low HLB value are in a chlorinated solvent, can be used to impart durable-to-laundering flame retardancy to both cotton and cotton-polyester textiles provided the HLB value of the final emulsion is greater than 9 and not over 15.1.
    Type: Grant
    Filed: May 6, 1977
    Date of Patent: April 11, 1978
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Ralph J. Berni, Marilyn M. Smith, Ruth R. Benerito