Patents by Inventor Walter Helmling

Walter Helmling 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: 5563248
    Abstract: The invention is a dye composition containing two or more dyes of the vinyl sulfone type which can be used in combination to dye polyamide substrates. Preferably the dye compositions of the invention contain at least three dyes of different primary colors.
    Type: Grant
    Filed: May 23, 1995
    Date of Patent: October 8, 1996
    Assignee: Hoechst Celanese Corporation
    Inventors: Walter Helmling, Philomen DeCroos
  • Patent number: 5539109
    Abstract: The invention is that of a new triphenodioxazine dye of the formula: ##STR1## wherein: ##STR2## K is independently selected from SO.sub.3 H and COOH; W=a substituted or unsubstituted arylene, alkylene or arylene-alkylene group;Y.sup.1 =Vinyl, .beta.-Sulfatoethyl, .beta.-Thiosulfatoethyl, .beta.-Halogenethyl-group, .beta.-Phosphatoethyl, andX=H.R, R.sub.1 and R.sub.2 are independently selected from hydrogen and substituted or unsubstituted alkyl.T is independently selected from hydrogen, Cl, Br, C.sub.1 to C.sub.6 alkyl, C.sub.1 to C.sub.6 alkoxy, phenyl or phenoxy; andn is selected from 0, 1 or 2.
    Type: Grant
    Filed: July 11, 1995
    Date of Patent: July 23, 1996
    Assignee: Hoechst Celanese Corporation
    Inventors: Walter Helmling, Uwe Reiher
  • Patent number: 5532362
    Abstract: The present invention is directed to a dioxazine dye which provides brilliant reddish blue dyeings possessing superior fastness properties and high tinctorial strength.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: July 2, 1996
    Assignee: Hoechst Celanese Corporation
    Inventors: Walter Helmling, David Brunetti, Uwe Reiher
  • Patent number: 5484459
    Abstract: This invention is directed to a dioxazine fiber reactive dye composition which provides brilliant blue shades comparable to those obtained with dyes of the anthraquinone series.
    Type: Grant
    Filed: June 29, 1994
    Date of Patent: January 16, 1996
    Assignee: Hoechst Celanese Corporation
    Inventor: Walter Helmling
  • Patent number: 5393884
    Abstract: The invention is that of a water soluble fiber reactive anthraquinone blue dyes. These dyes may be used to dye and print textiles and other substrates containing hydroxy and or groups in brilliant blue colors. The dyes of the invention are free of heavy metals.
    Type: Grant
    Filed: June 14, 1993
    Date of Patent: February 28, 1995
    Assignee: Hoechst Celanese Corporation
    Inventors: Ronald P. Pedemonte, Walter Helmling
  • Patent number: 5350838
    Abstract: A process for preparing monoazo dyes by coupling a aromatic diazonium salt with an amino-4-hydroxy-naphthalene sulfonic acid derivative at a temperature of 40.degree.-85.degree. C. The process of the invention provides a isomerically purer dye.
    Type: Grant
    Filed: February 8, 1993
    Date of Patent: September 27, 1994
    Assignee: Hoechst Celanese Corporation
    Inventors: Mark A. Helle, Walter Helmling
  • Patent number: 5003053
    Abstract: Water-soluble monoazo compounds of the general formula (1) which dye in fast, mainly red shades materials which contain carboxamide and/or hydroxy groups, preferably in the form of fibers, in particular cellulose fiber materials. ##STR1## in which: Y is .beta.-thiosulfatoethyl, .beta.-phosphatoethyl, .beta.-chloroethyl, vinyl or .beta.-sulfatoethyl,M is hydrogen, an alkali metal or an alkaline-earth metal,D is naphthyl which is substituted by sulfo and/or a group of the formula Y--SO.sub.2 --,or is one of the radicals ##STR2## in which M and Y have one of the above meanings, m is the number zero or 1, R.sup.1 is hydrogen, lower alkyl, lower alkoxy or carboxy, and R.sup.2 is hydrogen, lower alkyl, lower alkoxy, sulfo, carboxy, optionally substituted aryl, hydroxy, nitro or halogen,n is the number zero or 1,R is hydrogen or optionally substituted lower alkyl,R* is hydrogen or optionally substituted lower alkyl,X is fluorine or chlorine,B is a group of the formula ##STR3## in which R.sup.
    Type: Grant
    Filed: March 19, 1990
    Date of Patent: March 26, 1991
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Hartmut Springer, Walter Helmling, Ludwig Schlafer, Werner H. Russ
  • Patent number: 4898944
    Abstract: Precursors for the preparation of fiber-reactive triphendioxazine dyestuffs correspond to the general formulas: ##STR1## in which Y' is a vinyl, a beta-hydroxyethyl or an ethyl group which contains in the beta-position a substituent which can be eliminated by an alkali;T is an optionally substituted alkyl (e.g.
    Type: Grant
    Filed: October 27, 1988
    Date of Patent: February 6, 1990
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Gunther Schwaiger, Hartmut Springer, Walter Helmling
  • Patent number: 4895954
    Abstract: Water-soluble triphendioxazine compounds which have fiber-reactive properties as dyestuffs, which afford deep and fast dyeings on fiber materials, such as wool and, in particular, cellulose, and which correspond to the formula (1) ##STR1## in which: n is the number 0 or 1;Y is the vinyl group or an ethyl group containing, in .beta.-position, a substituent which can be eliminated by means of an alkali;Q.sup.1 and Q.sup.2 both represent a benzotriazole radical which can also be additionally substituted in the benzene nucleus by alkyl having 1 to 4 carbon atoms, alkoxy having 1 to 4 carbon atoms, halogen, carboxy or sulfo;B is --O--, --S--, --NH-- or --N(R')-- wherein R' is optionally substituted alkyl having 1 to 6 carbon atoms;W.sup.1 and W.sup.2 both represent a divalent, optionally substituted aliphatic, cycloaliphatic, aliphatic-cycloaliphatic, araliphatic or aromatic-carbocyclic radical, it being possible for the aliphatic radicals to be interrupted by hetero groups --O--, --S--, --SO.sub.
    Type: Grant
    Filed: October 28, 1988
    Date of Patent: January 23, 1990
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Gunther Schwaiger, Hartmut Springer, Walter Helmling
  • Patent number: 4885385
    Abstract: Water-soluble triphendioxazine compounds having fiber-reactive dye properties conforming to the general formula ##STR1## where: B is --O-- or --S-- or --NH-- or (C.sub.1 -C.sub.6)-alkylamino;R* is hydrogen or optionally substituted alkyl or aryl;W and W.sup.1 are each a bivalent, aliphatic or optionally alkyl-substituted cycloaliphatic or aliphatic-cycloaliphatic radical, which aliphatic radicals can be interrupted by --O--, --S--, sulfonyl, carbonyl, 1,4-piperidino, amino, alkylamino and/or alkanoylamino groups, orthe grouping --B--W.sup.1 --N(R*) and/or --N(R*)--W--B-- each represent the bivalent radical of a five- or six-membered saturated heterocycle which contains two nitrogen atoms, orthe grouping --B--W.sup.1 -- and/or --W--B-- each represent the bivalent radical of a five- or six=-membered saturated heterocycle which contains two nitrogen atoms and which is bonded by one of the two nitrogen atoms via an alkylene group of 2 to 4 carbon atoms to the grouping --N(R*)--CO--G.sup.
    Type: Grant
    Filed: July 28, 1988
    Date of Patent: December 5, 1989
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Hartmut Springer, Walter Helmling, Gunther Schwaiger
  • Patent number: 4851527
    Abstract: Water-soluble triphendioxazine compounds of the formula ##STR1## having at least one sulfato or sulfo group, in which R is a hydrogen atom, a water-solubilizing group, an alkyl group having 1 to 6 carbon atoms which is substituted by an acidic group, or an optionally substituted sulfonamide group,B is an oxygen or sulfur atom or a group of the formula --NH--or --N(R')--, where R' equals optionally substituted alkyl, cycloalkyl which is optionally substituted by certain substituents, or optionally substituted phenyl, or naphthyl which is optionally substituted by sulfo and/or a --SO.sub.2 --Y' group,B.sup.1 has one of the meanings stated for B and is identical to B or different from B,W is a bivalent aliphatic, araliphatic or aromatic radical which may be interrupted by 1 or 2 hetero groups from the series comprising groups of the formulae --O--, --NH--and --N(R')--, where R' has the above meaning,W.sup.
    Type: Grant
    Filed: August 27, 1986
    Date of Patent: July 25, 1989
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Hartmut Springer, Gunther Schwaiger, Walter Helmling
  • Patent number: 4816574
    Abstract: Water-soluble triphendioxazine compounds which have fiber-reactive properties as dyestuffs, which afford deep and fast dyeings on fiber materials, such as wool and, in particular, cellulose, and which correspond to the formula (1) ##STR1## in which: n is the number 0 or 1;Y is the vinyl group or an ethyl group containing, in .beta.-position, a substituent which can be eliminated by means of an alkali;Q.sup.1 and Q.sup.2 both represent a benzotriazole radical which can also be additionally substituted in the benzene nucleus by alkyl having 1 to 4 carbon atoms, alkoxy having 1 to 4 carbon atoms, halogen, carboxy or sulfo;B is --O--, --S--, --NH--or --N(R')--wherein R' is optionally substituted alkyl having 1 to 6 carbon atoms;W.sup.1 and W.sup.2 both represent a divalent, optionally substituted aliphatic, cycloaliphatic, aliphatic-cycloaliphatic, araliphatic or aromatic-carbocyclic radical, it being possible for the aliphatic radicals to be interrupted by hetero groups --O--, --S--, --SO.sub.
    Type: Grant
    Filed: July 23, 1987
    Date of Patent: March 28, 1989
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Gunther Schwaiger, Hartmut Springer, Walter Helmling
  • Patent number: 4786728
    Abstract: Triphendioxazine compounds with properties of fiber-reactive dyestuffs corresponding to the general formula ##STR1## in which T is an optionally substituted alkyl group with 1 to 6 carbon atoms, excluding a radical of the group Y defined below, it also being possible for the alkyl group to be interrupted by hetero atoms, or is an optionally substituted aryl group,B is an oxygen or sulfur atom or an amino group,W is a divalent, optionally substituted aliphatic, cycloaliphatic, araliphatic or aromatic-carbocyclic radical or a benzotriazole radical combined with one of these radicals, it being possible for the aliphatic radicals to be interrupted by hetero groups and/or for aliphatic and aryl radicals to be bonded to one another by a hetero group,R is hydrogen, alkyl with 1 to 6 carbon atoms, alkoxy with 1 to 5 carbon atoms, halogen, carboxy or sulfo,X.sup.
    Type: Grant
    Filed: September 18, 1986
    Date of Patent: November 22, 1988
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Gunther Schwaiger, Hartmut Springer, Walter Helmling
  • Patent number: 4785099
    Abstract: Water-soluble triphendioxazine compounds having fiber-reactive dye properties and the general formula (1) ##STR1## in which the meanings are: T is a substituted or unsubstituted alkyl of 1 to 6 carbon atoms, except an ethyl which is substituted in the .beta.
    Type: Grant
    Filed: December 17, 1986
    Date of Patent: November 15, 1988
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Hartmut Springer, Gunther Schwaiger, Walter Helmling
  • Patent number: 4782150
    Abstract: Water-soluble triphendioxazine compounds which have valuable fiber-reactive dyestuff properties and correspond to the general formula (1) and dye materials, in particular cellulose fiber materials, containing carboxamide and/or hydroxy groups in fast shades. ##STR1## in which: B is a group --O--, --S--, --NH-- or --N(R')-- in which R' is alkyl having 1 to 6 carbon atoms;R* is hydrogen or optionally substituted lower alkyl or optionally substituted aryl;W and W.sup.1 independently of one another are each a divalent aliphatic radical or a cycloaliphatic radical which is optionally substituted by lower alkyl or an aliphatic-cycloaliphatic radical which is optionally substituted by lower alkyl, it being possible for the aliphatic radicals to be interrupted by one or more groups --O--, --S--, --SO.sub.2 --, --CO--, 1,4-piperidino, --NH-- and --N(R.sup.o)-- in which R.sup.o has the meaning of R' or is lower alkanoyl;the groupings --B--W.sup.
    Type: Grant
    Filed: August 11, 1987
    Date of Patent: November 1, 1988
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Hartmut Springer, Walter Helmling, Gunther Schwaiger
  • Patent number: 4774333
    Abstract: Water-soluble triphendioxazine compounds having fiber-reactive dye properties conforming to the general formula ##STR1## where: B is --O-- or --S-- or --NH-- or (C.sub.1 -C.sub.6)-alkylamino;R* is hydrogen or optionally substituted alkyl or aryl;W and W.sup.1 are each a bivalent, aliphatic or optionally alkyl-substituted cycloaliphatic or aliphatic-cycloaliphatic radical, which aliphatic radicals can be interrupted by --O--, --S--, sulfonyl, carbonyl, 1,4-piperidino, amino, alkylamino and/or alkanoylamino groups, orthe grouping --B--W.sup.1 --N(R*) and/or --N(R*)--W--B-- each represent the bivalent radical of a five- or six-membered saturated heterocycle which contains two nitrogen atoms, orthe grouping --B--W.sup.1 -- and/or --W--B-- each represent the bivalent radical of a five- or six-membered saturated heterocycle which contains two nitrogen atoms and which is bonded by one of the two nitrogen atoms via an alkylene group of 2 to 4 carbon atoms to the grouping --N(R*)--CO--G.sup.
    Type: Grant
    Filed: February 12, 1987
    Date of Patent: September 27, 1988
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Hartmut Springer, Walter Helmling, Gunther Schwaiger