Patents by Inventor Marielise Pacher

Marielise Pacher 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 aftertreating dyed fibrous material made of or containing cellulose
    Patent number: 4515596
    Abstract: Dyed fibrous materials made of or containing cellulose which were not bleached before dyeing are aftertreated in a combined bleaching and washing bath which can, optionally, contain as stabilizers derivatives of phosphonic or phosphorous acid, optionally as a combination with polyhydroxy compounds. The resulting materials have bright and brilliant shades.This aftertreatment makes it possible to by-pass the otherwise customary, time-consuming and expensive drying of the materials between a bleach before dyeing and the dyeing itself.
    Type: Grant
    Filed: July 15, 1983
    Date of Patent: May 7, 1985
    Assignee: Ciba-Geigy Corporation
    Inventors: Hans-Ulrich Berendt, Marielise Pacher
  • Process for dyeing blended fabrics
    Patent number: 4055392
    Abstract: A process for dyeing and printing blends of wool and polyester fibres which comprises the use of dyes of the formula ##STR1## wherein A is the radical of a monofunctional or polyfunctional tertiary amine, X is an anion and F is the radical of a dye of the disperse class. The process yields tone-in-tone dyeings.
    Type: Grant
    Filed: April 24, 1975
    Date of Patent: October 25, 1977
    Assignee: Ciba-Geigy Corporation
    Inventors: Stefan Koller, Marielise Pacher, Karl Emmenegger
  • Process for dyeing blended fabrics
    Patent number: 4015933
    Abstract: A process for dyeing and printing blends of wool and polyacrylic fibers which comprises the use of dyes of the formula ##STR1## wherein A is the radical of a monofunctional or polyfunctional tertiary amine, X is an anion and F is the radical of a dye of the disperse class.
    Type: Grant
    Filed: April 24, 1975
    Date of Patent: April 5, 1977
    Assignee: Ciba-Geigy Corporation
    Inventors: Stefan Koller, Arnulf Ruediger Lapple, Marielise Pacher