Patents by Inventor Joseph R. Ditzer, Jr.

Joseph R. Ditzer, Jr. 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: 4449985
    Abstract: Disclosed are compositions for use in preparing thickened thermosol dyeing baths or printing paste wherein natural or synthetic thickeners are employed, comprising an aqueous system of one or more substantially water insoluble dyes and from about 2 to about 12%, preferably from about 3 to about 10%, and most preferably 4 to about 8% by weight of polyvinyl alcohol (PVA). In general, the dyes useful in the present composition are disperse dyes as defined in the Color Index, 3rd Edition, as azo, anthraquinone, methine, nitroarylamine, and quinoline. Particularly useful are such dyes, for example, comprised of couplers selected from aniline, tetrahydroquinoline, benzomorpholine, and their known derivatives, and diazo components selected from phenyl, thiazolyl, isothiazole, thiadiazolyl, thienyl, benzothiazolyl, and benzisothiazolyl and their known derivatives.
    Type: Grant
    Filed: June 28, 1982
    Date of Patent: May 22, 1984
    Assignee: Eastman Kodak Company
    Inventor: Joseph R. Ditzer, Jr.