Patents by Inventor Gary F. Danna

Gary F. Danna 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).

  • Patent number: 5897952
    Abstract: Temperature adaptable fibers are provided in which a polyol/glyoxal based crosslinking system is used to create a water-insoluble polyacetal coating. The formaldehyde release properties characteristic of methylolamide finishing agents is avoided. The non-catalytic reaction utilizes stoichimetric amounts of sulfonic acids to derivatize the polyols which in turn react with the glyoxal to form a water-insoluble polymer. The material also possesses improved properties relating to soil release, durable press, resistance to static charge, abrasion resistance, pilling resistance and water absorbency.
    Type: Grant
    Filed: April 3, 1992
    Date of Patent: April 27, 1999
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Tyrone L. Vigo, Gary F. Danna, Joseph S. Bruno
  • Patent number: 5656037
    Abstract: The preparation of water-insoluble, bactericidal, peroxide-containing products, by reaction of magnesium acetate with hydrogen peroxide, and products obtained are disclosed. Processes for application and deposition of these reaction products on natural, synthetic and blend fibrous substrates are also disclosed. The modified fibrous substrates thus produced inhibit the growth and spread of odor- and disease-causing gram-positive and gram-negative bacteria and the antibacterial activity of the modified fibrous substrates is durable to repeated launderings.
    Type: Grant
    Filed: December 28, 1995
    Date of Patent: August 12, 1997
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Tyrone L. Vigo, Gary F. Danna
  • Patent number: 4908238
    Abstract: Temperature adaptable textile fibers are provided in which phase-change or plastic crystalline materials are filled within hollow fibers or impregnated upon non-hollow fibers. The fibers are produced by applying solutions or melts of the phase-change or plastic crystalline materials to the fibers. Cross-linked polyethylene glycol is especially effective as the phase change material, and, in addition to providing temperature adaptability, it imparts improved properties as to soil release, durable press, resistance to static charge, abrasion resistance, pilling resistance and water absorbency.
    Type: Grant
    Filed: June 27, 1989
    Date of Patent: March 13, 1990
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Tyrone L. Vigo, Cynthia M. Zimmerman, Joseph S. Bruno, Gary F. Danna
  • Patent number: 4900324
    Abstract: The acetals, 2,3-dihydroxy-1,1,4,4-tetramethoxybutane, 3,4-dihydroxy-2,5-dimethoxytetrahydrofuran, and glyceraldehyde dimethylacetal, when applied to cotton fabric by conventional pad-dry-cure procedures using special combined acid catalysts, were found to crosslink cellulose hydroxy groups at a very rapid rate (e.g., 20 seconds at 160.degree. C.), thereby imparting improved wrinkle recovery in the range of that required for durable press finishing. Cotton fabrics treated with these acetals have the advantage of no formaldehyde release.
    Type: Grant
    Filed: August 8, 1988
    Date of Patent: February 13, 1990
    Assignee: The United States of America, as represented by the Secretary of Agriculture
    Inventors: Leon H. Chance, Gary F. Danna, Bethlehem K. Andrews
  • Patent number: 4851291
    Abstract: Temperature adaptable textile fibers are provided in which phase-change or plastic crystalline materials are filled within hollow fibers or impregnated upon non-hollow fibers. The fibers are produced by applying solutions or melts of the phase-change or plastic crystalline materials to the fibers. Cross-linked polyethylene glycol is especially effective as the phase change material, and, in addition to providing temperature adaptability, it imparts improved properties as to soil release, durable press, resistance to static charge, abrasion resistance, pilling resistance and water absorbency.
    Type: Grant
    Filed: May 29, 1987
    Date of Patent: July 25, 1989
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Tyrone L. Vigo, Cynthia M. Frost, Joseph S. Bruno, Gary F. Danna
  • Patent number: 4818243
    Abstract: Acetals of glyceraldehyde, when applied to cotton fabric by conventional pad-dry-cure procedures using special combined acid catalysts, were found to crosslink the cellulose hydroxyl groups at a very rapid rate (e.g., 10 seconds at 170.degree. C.), thereby imparting improved wrinkle recovery. In particular, the aldehydes studied were the diethyl and dimethyl acetals of glyceraldehyde. The best results were obtained with glyceraldehyde dimethyl acetal.
    Type: Grant
    Filed: May 18, 1987
    Date of Patent: April 4, 1989
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Leon H. Chance, Gary F. Danna
  • Patent number: 4199322
    Abstract: The preparation of bacteriostatic, water-insoluble peroxide-containing complexes of zinc acetate, by reaction of zinc acetate with hydrogen peroxide in the presence of acetic acid, is disclosed. A process for in situ formation and deposition of these complexes on cellulosic and polyester textiles is described. The textile finishes so produced inhibit the growth and spreading of odor- and infection-producing gram-positive and gram-negative bacteria on the treated textiles. The antibacterial activity of the finished textiles is durable to repeated launderings.
    Type: Grant
    Filed: December 28, 1978
    Date of Patent: April 22, 1980
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Gary F. Danna, Tyrone L. Vigo, Clark M. Welch
  • Patent number: 4174418
    Abstract: Bacteriostatic, water-insoluble complexes of zirconyl acetate with inorganic peroxides are disclosed. Peroxides operative in forming these complexes are hydrogen peroxide, alkali metal perborates and alkali metal peroxydiphosphates. Processes for in situ formation and deposition of the insoluble complexes on the surfaces of cellulosic textiles are described. The textile finishes so produced inhibit the growth and spreading of odor- and infection-producing gram-negative and gram-positive bacteria on the treated textiles. The antibacterial activity imparted to the textiles is durable to repeated laundering.
    Type: Grant
    Filed: May 31, 1978
    Date of Patent: November 13, 1979
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Clark M. Welch, Gary F. Danna, Tyrone L. Vigo
  • Patent number: 4172841
    Abstract: The preparation of bacteriostatic, water-insoluble peroxide-containing complexes of zinc acetate, by reaction of zinc acetate with hydrogen peroxide in the presence of acetic acid, is disclosed. A process for in situ formation and deposition of these complexes on cellulosic and polyester textiles is described. The textile finishes so produced inhibit the growth and spreading of odor- and infection-producing gram-positive and gram-negative bacteria on the treated textiles. The antibacterial activity of the finished textiles is durable to repeated launderings.
    Type: Grant
    Filed: August 17, 1978
    Date of Patent: October 30, 1979
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Gary F. Danna, Tyrone L. Vigo, Clark M. Welch
  • Patent number: 4115422
    Abstract: Bacteriostatic, water-insoluble complexes of zirconyl acetate with inorganic peroxides are disclosed. Peroxides operative in forming these complexes are hydrogen peroxide, alkali metal perborates and alkali metal peroxydiphosphates. Processes for in situ formation and deposition of the insoluble complexes on the surfaces of cellulosic textiles are described. The textile finishes so produced inhibit the growth and spreading of odor- and infection-producing gram-negative and gram-positive bacteria on the treated textiles. The antibacterial activity imparted to the textiles is durable to repeated laundering.
    Type: Grant
    Filed: April 12, 1977
    Date of Patent: September 19, 1978
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Clark M. Welch, Gary F. Danna, Tyrone L. Vigo