Patents by Inventor Max Aeberli

Max Aeberli 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).

  • Monoazo and disazo compounds having optionally further substituted 2-acyl-, carboxy- or cyano-benzothienyl diazo component radicals
    Patent number: 4055556
    Abstract: Compounds free of sulfo groups having the formula ##STR1## IN WHICH N IS 0, 1 OR 2, R.sub.1 signifies halogen, substituted or unsubstituted alkyl, cycloalkyl, alkoxy or cycloalkoxy, trifluoromethyl or nitro, the R.sub.1 's being the same or different when n is 2,R.sub.2 signifies carboxyl, aminocarbonyl, alkylaminocarbonyl, cycloalkylaminocarbonyl, dialkylaminocarbonyl, phenylaminocarbonyl, alkoxycarbonyl, cycloalkoxycarbonyl, phenoxycarbonyl, or cyano, any alkyl, alkoxy, cycloalkyl, cycloalkoxy, phenyl or phenoxy moiety being unsubstituted or substituted,K signifies a coupling component radical, and m is 1 or 2,Are useful as pigments for paints, inks, varnishes, plastics, printing pastes and paper and disperse dyes for synthetic and semisynthetic fibers such as linear aromatic polyesters, cellulose acetates and synthetic polyamides.
    Type: Grant
    Filed: September 3, 1974
    Date of Patent: October 25, 1977
    Assignee: Sandoz Ltd.
    Inventor: Max Aeberli