Patents by Inventor Klaus Sternberger

Klaus Sternberger 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: 5006129
    Abstract: Process for dyeing textile material with pigment dyes, which comprises1. pretreating the textile material with a polymer which consists wholly or partly of monomeric units of the formula I ##STR1## where R.sup.1 and R.sup.2 are each hydrogen, (C.sub.1 -C.sub.22)alkyl which may be interrupted by --CO--NH-- or --NH--CO--, or C.sub.1 -C.sub.4 -hydroxyalkyl,R.sup.3 and R.sup.4 are each hydrogen or methyl, and Y.sup.- is a monovalent anion or one equivalent of a polyvalent anion,2. then dyeing with a pigment dye in the presence of a leveling or dispersing agent by the exhaust method and if necessary3. treating the dyeing in a liquor with a pigment binder and subsequently fixing it.This process makes it possible to dye textile material, in particular ready-made jeans garments, with pigment dyes by an exhaust method.
    Type: Grant
    Filed: December 29, 1989
    Date of Patent: April 9, 1991
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Thomas Martini, Karl-Heinz Keil, Ulrich Karsunky, Klaus Sternberger
  • Patent number: 4988365
    Abstract: A process for the alkali-free dyeing and printing of cellulose fibers by means of reactive dyes, direct dyes, acid dyes, water-soluble sulfur dyes or sulfur vat dyes, which comprises pretreating the textile material to be dyed with a wetting agent and a reaction product of an epihalogenohydrin with ammonia or an amine of the formula ##STR1## in which A is hydrogen, alkyl having 1 to 5 carbon atoms, hydroxyalkyl having 1 to 5 carbon atoms,R is alkyl having 1 to 5 carbon atoms, hydroxyalkyl having 1 to 5 carbon atoms,a group of the formula ##STR2## (n=0 to 5), a group of the formula ##STR3## (X=oxygen or sulfur) (n=0 to 5), or R and A together are ##STR4## subsequently dyeing them by conventional methods, but without alkali, by means of the dyes mentioned, and completing the dyeing by rinsing, soaping and drying.
    Type: Grant
    Filed: September 14, 1989
    Date of Patent: January 29, 1991
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Klaus Sternberger, Karl-Heinz Keil
  • Patent number: 4810254
    Abstract: The wet-fastness properties of cellulose materials dyed with sulfur dyestuffs is improved by treating the cellulose materials, before, during or after dyeing, with a polymer which is a copolymer or homopolymer of a monomer of the formula ##STR1## wherein R.sup.1 and R.sup.2 denote, for example, hydrogen or (C.sub.1 -C.sub.22)-alkyl; R.sup.3 and R.sup.4 denote hydrogen or methyl; and Y.sup..crclbar. denotes, for example, a monovalent anion.
    Type: Grant
    Filed: January 27, 1988
    Date of Patent: March 7, 1989
    Assignee: Cassella Aktiengesellschaft
    Inventors: Wolfgang Bauer, Karl-Heinz Keil, Gert Nagl, Manfred Kaiser, Joachim Steinbach, Klaus Sternberger
  • Patent number: 4806126
    Abstract: Process for alkali-free dyeing and printing with reactive dyes. Beforehand, the textile material is treated with a wetting agent and a reaction product of polyethyleneimine and a bifunctional alkylating agent. This is followed by dyeing with reactive dyes in a conventional manner but without the addition of alkali to fix the dyes.
    Type: Grant
    Filed: March 23, 1988
    Date of Patent: February 21, 1989
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Klaus Sternberger, Karl-Heinz Keil, Dieter Gevert, Oscar Navarrete
  • Patent number: 4753999
    Abstract: A textile auxiliary for improving the fastness of materials dyed or printed with a dyestuff is a copolymer of a diallylammonium monomer, a vinyl amide monomer and a (meth)acrylic ester monomer.
    Type: Grant
    Filed: January 6, 1987
    Date of Patent: June 28, 1988
    Assignee: Cassella Aktiengesellschaft
    Inventors: Karl-Heinz Keil, Fritz Engelhardt, Klaus Sternberger, Gunter Rosch
  • Patent number: 4588413
    Abstract: Improvements in the fastness properties of substrates dyed with reactive dyestuffs are achieved by a dyeing after-treatment with an agent which is the reaction product polyethyleneimine and a bifunctional alkylating agent.
    Type: Grant
    Filed: July 19, 1984
    Date of Patent: May 13, 1986
    Assignee: Cassella Aktiengesellschaft
    Inventors: Karl-Heinz Keil, Fritz Engelhardt, Ulrich Greiner, Klaus Sternberger, Manfred Pelster
  • Patent number: 4300903
    Abstract: A padding auxiliary is used in a dyeing process using a padding liquor wherein the padding auxiliary is an aqueous solution or dispersion containing(a) 20 to 50 percent by weight of a mixture of 50 to 100 percent by weight of a compound of the following formula ##STR1## and 50 to 0 percent by weight of a compound of the following formula ##STR2## (b) b percent by weight of a compound of the formula ##STR3## and (c) c percent by weight of a compound of the formula ##STR4## wherein b is a number from 0 to 5, c is a number from 0 to 5 and the numbers for b and c are chosen such that the sum of the numbers for b and c is a number from 1 to 10;R.sup.1, R.sup.2 and R.sup.3 are independently an aliphatic moiety with 5 to 12 carbon atoms or an araliphatic moiety with 7 to 13 carbon atoms;X.sym., Y.sym. and Z.sym. is each independently an alkali metal cation, ammonium cation or a cation of an alkylamine or hydroxyalkylamine wherein the alkyl has 1-12 carbon atoms;R.sup.
    Type: Grant
    Filed: July 23, 1980
    Date of Patent: November 17, 1981
    Assignee: Cassella Aktiengesellschaft
    Inventors: Friedrich Engelhardt, Karl-Heinz Keil, Gerhard Weckler, Klaus Sternberger