Patents by Inventor Frank G. De Voeght

Frank G. De Voeght 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: 5472832
    Abstract: A recording material comprising a sheet, ribbon or web support and a hydrophilic colloid binder layer incorporating an ionic polymer in the form of dispersed particulate material providing to said material an antistatic character, characterized in that (i) said ionic polymer is a cross-linked copolymer of an acrylic and/or methacrylic acid ester including 90-99 mole % of acrylate and/or methacrylate and 1 to 10 mole % of tetraallyloxyethane as polyfunctional crosslinking monomer, wherein in said copolymer at least 75% of the ester groups have been transformed into alkali metal carboxylate groups (ii) said ionic polymer is coated at a coverage of at least 14 g/m.sup.2, and (iii) said ionic polymer is present in admixture with said hydrophilic colloid binder in a weight ratio of at least 10/90.
    Type: Grant
    Filed: June 1, 1993
    Date of Patent: December 5, 1995
    Assignee: AGFA-Gevaert, N.V.
    Inventors: Daniel M. Timmerman, Filip B. E. Byl, Frank G. De Voeght