Patents by Inventor Werner Kneubuhler

Werner Kneubuhler 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).

  • Methods for dyeing or printing using amino-anthraquinone reactive disperse dyes
    Patent number: 4115056
    Abstract: The present invention provides useful new fibre-reactive disperse dyes of the formula (1) ##STR1## wherein R.sub.1 represents hydrogen or alkyl,R.sub.2 represents hydrogen, alkyl, cycloalkyl, aralkyl or substituted or unsubstituted phenyl, and R.sub.1 and R.sub.2, together with the nitrogen atom to which they are attached, can also form a 5- to 7-membered heterocyclic ring,R.sub.3 represents hydrogen or alkyl,R.sub.4 represents an alkyl radical of 1 to 6 carbon atoms which is substituted in .alpha.- and .beta.-position, preferably only in .alpha.-position, by halogen, for example bromine and above all chlorine, or represents an .alpha.,.beta.-unsaturated alkene radical which can be substituted in .alpha.- or .beta.-position by halogen, such as bromine and above all chlorine,A represents an alkylene or cycloalkylene radical which optionally contains oxygen or sulphur,X represents hydrogen, chlorine, bromine, cyano, or COOR.sub.5, andR.sub.
    Type: Grant
    Filed: October 28, 1977
    Date of Patent: September 19, 1978
    Assignee: Ciba-Geigy AG
    Inventors: Stefan Koller, Urs Karlen, Werner Kneubuhler, Raymond Defago
  • Methods for dyeing or printing using amino-anthraquinone reactive disperse dyes
    Patent number: 4097229
    Abstract: The present invention provides useful new fibre-reactive disperse dyes of the formula (1) ##STR1## wherein R.sub.1 represents hydrogen or alkyl,R.sub.2 represents hydrogen, alkyl, cycloalkyl, aralkyl or substituted or unsubstituted phenyl, and R.sub.1 and R.sub.2, together with the nitrogen atom to which they are attached, can also form a 5- to 7-membered heterocyclic ring,R.sub.3 represents hydrogen or alkyl,R.sub.4 represents an alkyl radical of 1 to 6 carbon atoms which is substituted in .alpha.- and .beta.-position, preferably only in .alpha.-position, by halogen, for example bromine and above all chlorine, or represents an .alpha.,.beta.-unsaturated alkene radical which can be substituted in .alpha.- or .beta.-position by halogen, such as bromine and above all chlorine,A represents an alkylene or cycloalkylene radical which optionally contains oxygen or sulphur,X represents hydrogen, chlorine, bromine, cyano or COOR.sub.5, andR.sub.
    Type: Grant
    Filed: March 1, 1977
    Date of Patent: June 27, 1978
    Assignee: Ciba-Geigy AG
    Inventors: Stefan Koller, Urs Karlen, Werner Kneubuhler, Raymond Defago
  • Amino-anthraquinone reactive disperse dyes
    Patent number: 4044029
    Abstract: The present invention provides useful new fibre-reactive disperse dyes of the formula (1) ##STR1## wherein R.sub.1 represents hydrogen or alkyl,R.sub.2 represents hydrogen, alkyl, cycloalkyl, aralkyl or substituted or unsubstituted phenyl, and R.sub.1 and R.sub.2, together with the nitrogen atom to which they are attached, can also form a 5- to 7-membered heterocyclic ring,R.sub.3 represents hydrogen or alkyl,R.sub.4 represents an alkyl radical of 1 to 6 carbon atoms which is substituted in .alpha.- and .beta.-position, preferably only in .alpha.-position, by halogen, for example bromine and above all chlorine, or represents an .alpha.,.beta.-unsaturated alkene radical which can be substituted in .alpha.- or .beta.-position by halogen, such as bromine and above all chlorine,A represents an alkylene or cycloalkylene radical which optionally contains oxygen or sulphur,X represents hydrogen, chlorine, bromine, cyano or COOR.sub.5, andR.sub.
    Type: Grant
    Filed: May 26, 1976
    Date of Patent: August 23, 1977
    Assignee: Ciba-Geigy AG
    Inventors: Stefan Koller, Urs Karlen, Werner Kneubuhler, Raymond Defago