Patents by Inventor Wilhelm Muhlig

Wilhelm Muhlig 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: 5321134
    Abstract: There are described water-soluble phthalocyanine dyes, in particular copper phthalocyanine and nickel phthalocyanine dyes, which have the formula (1) defined hereinafter and can be used for the dyeing and printing of hydroxy and/or carboxyamido-containing fiber material, such as cotton, wool and synthetic polyamide, by the techniques customary in the art for fiber-reactive dyes. ##STR1## in which Pc is a phthalocyanine radical, R.sup.1 and R.sup.2 are both hydrogen or alkyl, A is an aromatic carboxylic or heterocyclic radical, which may be substituted by substituents customary in dyes, or is an alkylene radical, which may be substituted by 1 or 2 hetero groups, X is a direct bond or a divalent organic binding link, such as an alkylene radical or an alkyleneamino group, Y is a direct bond or a group of the formula --CO--NH--alkylene-- or a methylamino or .beta.-cyanoethylamino group, Z is a fiber-reactive radical from the vinylsulfonyl series or is .beta.
    Type: Grant
    Filed: November 5, 1992
    Date of Patent: June 14, 1994
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Thomas Beck, Werner H. Russ, Wilhelm Muhlig
  • Patent number: 5231172
    Abstract: There are described water-soluble fiber-reactive dye-stuffs which possess a triazinylamino radical to which is bonded as second substituent an amino group or an N-containing heterocyclic group which, bonded via an arylene, alkylene or aralkyl radical, possesses a fiber-reactive grouping of the vinyl sulfone series, and to which is bonded as third substituent a sulfonamide group, wherein the sulfone radical is substituted by optionally substituted aryl, alkylenearyl or arylenealkyl or optionally substituted amino groups.The dyestuffs are used for dyeing hydroxy - and/or carboxamido-containing material, in particular fiber material, such as cellulose fibers, wool and synthetic polyamide.
    Type: Grant
    Filed: October 21, 1992
    Date of Patent: July 27, 1993
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Thomas Beck, Werner H. Russ, Wilhelm Muhlig