Patents by Inventor Paul Muther

Paul Muther 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).

  • Solid disperse dye formulations containing non-ionic dispersants for transfer printing inks
    Patent number: 4523923
    Abstract: The invention relates to solid disperse dye formulations which do not contain anionic dispersants and which comprise one or more disperse dyes having a particle size of less than 5 .mu.m, and one or more nonionic dispersants selected from the group of the fatty alcohol ethoxylates having a molecular weight of 800 to 2000, of the fatty amine ethoxylates having a molecular weight of 500 to 1000, and of the polyvinylpyrrolidones having a molecular weight of 10,000 to 25,000.These formulations are particularly suitable for preparing organic printing pastes and printing inks which contain synthetic thickeners and which are suitable for textile printing and for transfer printing.
    Type: Grant
    Filed: February 16, 1984
    Date of Patent: June 18, 1985
    Assignee: Ciba-Geigy Corporation
    Inventors: Urs Buchel, Paul Muther