Patents by Inventor Philip B. Roth

Philip B. Roth 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 flame resistance to cellulosic textile materials and cellulosic materials obtained thereby
    Patent number: 4110509
    Abstract: A process and product obtained thereby are disclosed wherein a cellulosic textile material is impregnated with an aqueous solution of a condensation product of tetrakis(hydroxymethyl)phosphonium sulfate and urea, partially dried, impregnated with a thickened solution of ammonium hydroxide, rolled and stored in a container, unrolled, rinsed with water and dried to obtain durable flame retardance.
    Type: Grant
    Filed: March 23, 1977
    Date of Patent: August 29, 1978
    Assignee: American Cyanamid Company
    Inventor: Philip B. Roth