Patents by Inventor Hansjorg Schneider

Hansjorg Schneider 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: 4560747
    Abstract: A process for producing granulates of water-soluble dyes by means of fluidized bed granulation, wherein there is added a granulating auxiliary having a softening point or softening range between 30.degree. and 150.degree. C. and consisting of(a) at least one compound of the formula IA--(CH.sub.2 CH.sub.2 O).sub.n --H (I)in which A is the group R--O-- or ##STR1## wherein R is an aliphatic or alicyclic hydrocarbon radical having 8 to 22 carbon atoms, R' is an aliphatic hydrocarbon radical having 8 to 22 carbon atoms, and n is 10 to 200, preferably 20 to 150, or(b) a mixture of a compound of the formula II ##STR2## in which m is 50 to 500, and x is 3 to 5, with a compound of the formula IIIR.sub.1 --NH--CO--NH--R.sub.1 (III),in which each R.sub.1 independently of the other is hydrogen or methyl, or(c) a mixture of a compound of the formula I with at least one compound of the formula II or III.
    Type: Grant
    Filed: October 20, 1980
    Date of Patent: December 24, 1985
    Assignee: Ciba Geigy Corporation
    Inventors: Beat Bruttel, Hansjorg Schneider, Werner H. Dorfel
  • Patent number: 4425134
    Abstract: A process for producing agglomerates of water-soluble dyes by adding a granulating auxiliary to at least one water-soluble dye, which is in pulverulent form, and converting the mixture, while it is being subjected to a tumbling and/or mixing action, by particle enlargement into a granular form, in which process there is used as a granulating auxiliary:(a) at least one compound of the formula IA--(CH.sub.2 CH.sub.2 O).sub.n --H (I)in which A is the group R--O-- or ##STR1## R is an aliphatic or alicyclic hydrocarbon radical containing 8 to 22 carbon atoms, R' is an aliphatic hydrocarbon radical containing 8 to 22 carbon atoms, and n is 10 to 200, or(b) a mixture of a compound of the formula II ##STR2## in which m is 50 to 500, and x is 3 to 5, with a compound of the formula IIIR.sub.1 --NH--CO--NH--R.sub.1 (III)in which each R.sub.
    Type: Grant
    Filed: March 1, 1982
    Date of Patent: January 10, 1984
    Assignee: Ciba-Geigy Corporation
    Inventors: Beat Bruttel, Hansjorg Schneider, Alain Millioud, Michael Rosch