Patents by Inventor John T. Gresham

John T. Gresham 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).

  • Flame-retardant polyester fiber compositions
    Patent number: 4295886
    Abstract: Flame-retardant polyester fibers containing 5 to 20% by weight of 3,9-diphenyl-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane-3,9-dioxide , a novel compound, as the sole frame-retardant additive or a two-component additive comprising the aforesaid spirophosphonate in admixture with 20 to 80% of certain polychlorinated or polybrominated diaryl compounds.
    Type: Grant
    Filed: October 9, 1973
    Date of Patent: October 20, 1981
    Assignee: Avtex Fibers Inc.
    Inventor: John T. Gresham
  • Fluorinated ether-acrylic esters and polymers thereof
    Patent number: 4080507
    Abstract: Fluorinated ether-acrylic esters of the formula ##STR1## wherein R is hydrogen or methyl, R.sub.f is a perfluoroalkyl group of 4-16 carbon atoms, n is 1-12, m is 2-3 and p is 1-4 are disclosed. Also disclosed are polymers of such esters for use in rendering textiles oil and water repellent.
    Type: Grant
    Filed: May 11, 1971
    Date of Patent: March 21, 1978
    Assignee: FMC Corporation
    Inventor: John T. Gresham
  • Peracid treatment of dry cleaning baths
    Patent number: 4026798
    Abstract: Peracids and a water-soluble inorganic polyphosphate salt are used in the treatment of dirty dry cleaning baths to permit longer operation between distillation.
    Type: Grant
    Filed: November 28, 1975
    Date of Patent: May 31, 1977
    Assignee: FMC Corporation
    Inventors: Harry Marcus Castrantas, John T. Gresham
  • Dry cleaning with peracids
    Patent number: 4013575
    Abstract: Textile fabric stain removal is significantly improved by including in conventional dry cleaning solvent baths, a preformed or in situ generated peracid.
    Type: Grant
    Filed: November 28, 1975
    Date of Patent: March 22, 1977
    Assignee: FMC Corporation
    Inventors: Harry Marcus Castrantas, John T. Gresham
  • Phosphate esters
    Patent number: 3944633
    Abstract: Flame-retardant polyester fibers containing 5 to 20% by weight of phosphate triester containing at least one mole of a hydroxymethyl bicyclic phosphate and 0-2 moles of a phenyl or naphthyl aryl compound as the sole flame-retardant additive or a two-component additive comprising the aforesaid triester in admixture with 20 to 80% of certain polychlorinated or polybrominated diaryl compounds.
    Type: Grant
    Filed: October 31, 1974
    Date of Patent: March 16, 1976
    Assignee: FMC Corporation
    Inventor: John T. Gresham