Patents by Inventor Ildo E. Pensa

Ildo E. Pensa 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).

  • Non-aqueous process for the dyeing of dyable materials at an elevated temperature in a non-reactive environment and in a non-aqueous dye solvent
    Patent number: 4828571
    Abstract: The present invention provides a non-aqueous process for the dyeing of a dyeable material at an elevated temperature by contacting a dyeable material with a dye composition at an elevated temperature in a non-reactive environment. The dye composition temperature and the time of contact between the dye composition and the dyeable material are sufficient to effectuate the dyeing of the material. The dye composition comprises a substantially non-aqueous solvent and a dyestuff.
    Type: Grant
    Filed: May 9, 1986
    Date of Patent: May 9, 1989
    Inventors: Ildo E. Pensa, C. Duff Hughes, Nicholas S. Hood, Eugene M. Saunders
  • Treatment of polyester textiles to improve soil release and wettability properties
    Patent number: 4008044
    Abstract: This invention relates to a process for improving the soil release and wetting properties of a polyester textile material by applying thereto a limited amount of an aqueous solution containing about 0.5 to 2.5% by weight of sodium hydroxide and then contacting the textile material with steam while maintaining a moisture content of at least 35% to remove 0.4 to 2.5% by weight of the polyester. By using this procedure the amount of polyester removed is controlled by the limited amount of sodium hydroxide present while at the same time a substantially uniform product is obtained.
    Type: Grant
    Filed: June 3, 1975
    Date of Patent: February 15, 1977
    Assignee: J. P. Stevens & Co., Inc.
    Inventors: Bruce M. Latta, Ildo E. Pensa