Patents by Inventor Peter Matzinger

Peter Matzinger 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: 5324826
    Abstract: Compounds of the formula ##STR1## wherein R.sub.1 is C.sub.1-18 alkyl, substituted C.sub.1-18 alkyl, phenyl, substituted phenyl, C.sub.3-6 alkenyl, substituted C.sub.3-6 alkenyl, C.sub.3-6 alkynyl or substituted C.sub.3-6 alkynyl,R.sub.2 is an electron withdrawing substituent; andK is the residue of a coupling component that is free of any water solubilizing groups.The compounds are disperse dyes which can be used to dye, print or pad fully synthetic or semi-synthetic hydrophobic high molecular weight organic material.
    Type: Grant
    Filed: August 10, 1992
    Date of Patent: June 28, 1994
    Assignee: Sandoz Ltd.
    Inventor: Peter Matzinger
  • Patent number: 4619991
    Abstract: Process for the production of triazoles of the formula ##STR1## in which R.sub.1 is hydrogen or an aliphatic or aromatic substituent conventional for diazo components of disperse dyes, which substituent is bound to the N-atom in the 1- or 2-position of the triazole nucleus through a carbon atom, andK is a coupling component radicalcomprising treating a compound of the formula ##STR2## with a dehydrating agent.
    Type: Grant
    Filed: August 18, 1982
    Date of Patent: October 28, 1986
    Assignee: Sandoz Ltd.
    Inventor: Peter Matzinger
  • Patent number: 4341700
    Abstract: Compounds of the formula ##STR1## in which R.sub.1 is hydrogen or an aliphatic or aromatic substituent conventional for diazo component radicals of disperse dyes and which is bound to a N-atom in the 1- or 2-position of the triazole nucleus through a carbon atom, with the proviso that when R.sub.1 is in the 1-position, the broken line represents double bonds in the 2,3- and 4,5-positions and when R.sub.1 is in the 2-position, the broken line represents double bonds in the 3,4- and 1,5-positions,R.sub.2 is an electron withdrawing or inductive group, andK is a coupling component radical of the aniline series,with the proviso that the molecule is free from cationic groups, sulphonic acid groups, metals and metallizable groups, which compounds are useful as disperse dyes for textile substrates consisting of or comprising synthetic or semi-synthetic, hydrophobic, high molecular weight organic materials such as linear aromatic polyesters, cellulose 21/2 acetate, cellulose triacetate and synthetic polyamides.
    Type: Grant
    Filed: January 9, 1979
    Date of Patent: July 27, 1982
    Assignee: Sandoz Ltd.
    Inventor: Peter Matzinger