Patents by Inventor Rainer Begrich

Rainer Begrich 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: 5118826
    Abstract: Reactive dyes of formula ##STR1## wherein Y is a radical of formula ##STR2## or--CO--A--SO.sub.2 --X (3)Z is --NH.sub.2, an unsubstituted or a substituted aliphatic or aromatic amino group; A is an unsubstituted or a substituted aliphatic or aromatic bridging group, and X is .beta.-sulfatoethyl, .beta.-thiosulfatoethyl, .beta.-phosphatoethyl, .beta.-acyloxyethyl, .beta.-haloethyl or vinyl; the benzene rings I, II and III may contain further substituents in addition to 2 to 4 sulfo groups and, in the benzene ring II, to the radical --NH--Y; and the reactive dyes of formula (1) contain only a single fiber-reactive radical, are especially suitable for dyeing or printing cellulosic fiber materials by the methods customarily employed for reactive dyes, and give dyeings and prints of good fastness properties in high color yield.
    Type: Grant
    Filed: March 7, 1991
    Date of Patent: June 2, 1992
    Assignee: Ciba-Geigy Corporation
    Inventor: Rainer Begrich
  • Patent number: 5021557
    Abstract: Reactive dyes of formula ##STR1## wherein Y is a radical of formula ##STR2## Z is --NH.sub.2, an unsubstituted or a substituted aliphatic or aromatic amino group; A is an unsubstituted or a substituted aliphatic or aromatic bridging group, and X is .beta.-sulfatoethyl, .beta.-thiosulfatoethyl, .beta.-phosphatoethyl, .beta.-acyloxyethyl, .beta.-haloethyl or vinyl; the benzene rings I, II and III may contain further substituents in addition to 2 to 4 sulfo groups and, in the benzene ring II, to the radical --NH--Y; and the reactive dyes of formula (1) contain only a single fibre-reactive radical, are especially suitable for dyeing or printing cellulosic fibre materials by the methods customarily employed for reactive dyes, and give dyeings and prints of good fastness properties in high color yield.
    Type: Grant
    Filed: March 8, 1989
    Date of Patent: June 4, 1991
    Assignee: Ciba-Geigy Corporation
    Inventor: Rainer Begrich
  • Patent number: 4828572
    Abstract: The invention relates to a process for dyeing or printing textile fibre materials in stable shades with reactive dyes which produce grey or black dyeings or prints, which process comprises dyeing or printing textile fibre materials with a mixture of heavy metal-containing, water-soluble reactive dyes which produce grey or black dyeings or prints, each component of which mixture, under identical dyeing, printing and fixation conditions, produces dyeings or prints with a tinge different from the tinge of the dyeings or prints produced by the other component, and carrying out subsequent fixation.
    Type: Grant
    Filed: October 13, 1987
    Date of Patent: May 9, 1989
    Assignee: Ciba-Geigy Corporation
    Inventors: Wolfgang Sutterlin, Rainer Begrich
  • Patent number: 4515963
    Abstract: There is described a novel process for producing 1,8-naphtholactam compounds of the formula I ##STR1## wherein the symbols R, A and B have the meanings defined in claim 1. This process comprises reacting a 1,8-naphtholactone compound of the formula II ##STR2## in an aqueous medium, with an amine of the formula IIINH.sub.2 --R (III),optionally in the presence of bisulfite. The naphtholactam compounds of the formula I are obtained with a high degree of purity and with a yield of over 90%.
    Type: Grant
    Filed: January 14, 1983
    Date of Patent: May 7, 1985
    Assignee: Ciba Geigy AG
    Inventor: Rainer Begrich
  • Patent number: 4504273
    Abstract: The invention relates to reactive dyes of the formula ##STR1## wherein R.sub.1 is hydrogen or unsubstituted or substituted C.sub.1 -C.sub.4 alkyl or phenyl, R.sub.2 is hydrogen or unsubstituted or substituted C.sub.1 -C.sub.4 alkyl, R.sub.3 is hydrogen, cyano, carbamoyl or sulfomethyl, R.sub.4 and R.sub.5 are each independently hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, halogen, carboxy or sulfo, X is fluorine, chlorine or bromine, and Z is an unsubstituted or substituted benzthiazolyl-(2)-phenyl radical, which are suitable for dyeing or printing cellulosic fibers and produce brilliant greenish yellow dyeings.
    Type: Grant
    Filed: August 22, 1983
    Date of Patent: March 12, 1985
    Assignee: Ciba-Geigy Corporation
    Inventors: Rainer Begrich, Jean-Francois Landre
  • Patent number: 4447357
    Abstract: Azo dyes of the formula ##STR1## wherein D is benzene, naphthalene, benzoylaminobenzene, azobenzene or stilbene, which is unsubstituted or substituted by alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, phenoxy, alkanoylamino of 1 to 6 carbon atoms, benzoylamino, amino, alkylamino of 1 to 4 carbon atoms, phenylamino, alkoxycarbonyl of 1 to 5 carbon atoms, alkylcarbonyl of 1 to 5 carbon atoms, nitro, cyano, acetyl, carbamoyl, ureido, hydroxy, carboxy, halogen or sulfo, and which contains a dihalo-s-triazinylamino or a monohalo-s-triazinylamino radical substituted by an alkyl, aryl, alkylthio, arylthio, hydroxy, alkoxy, aryloxy, -NH.sub.2, alkylamino, arylamino or heterocyclic amino group, wherein the halo-s-triazinylamino radical is bonded directly or via methylene to a ring carbon of D, and the amino group, by which the halo-s-trazinyl radical is bonded to a carbon atom in D is optionally substituted at the nitrogen atom by C.sub.
    Type: Grant
    Filed: March 16, 1981
    Date of Patent: May 8, 1984
    Assignee: Ciba-Geigy Corporation
    Inventors: Gerd Holzle, Rainer Begrich
  • Patent number: 4129736
    Abstract: Fibre-reactive dyestuffs of the formula ##STR1## wherein F is the radical of a chromophore, R is hydrogen, alkyl or aryl, X is halogen and A is a carbocyclic radical.
    Type: Grant
    Filed: January 27, 1977
    Date of Patent: December 12, 1978
    Assignee: Ciba-Geigy Corporation
    Inventor: Rainer Begrich
  • Patent number: 4079051
    Abstract: Reactive dyestuffs of the formula ##STR1## WHEREIN ##STR2## IS AN AMINO-SUBSTITUTED AZO DYESTUFF RADICAL WHERE B is the azo dyestuff radical thereof;R is hydrogen or lower alkyl which is unsubstituted or substituted by methoxy, ethoxy or hydroxy;m is 1-2;And wherein Y is ##STR3## where X is chloro, bromo or fluoro;Z is ##STR4## where EACH M+ is alkali metal or ammonium, or both M+ together represent magnesium, calcium or zinc; andR' is hydrogen, lower alkyl or lower alkyl substituted by methoxy, ethoxy or hydroxy. These dyestuffs are useful in dyeing textile materials of cotton, regenerated cellulose, wool, silk, cellulose acetate, polyamides, polyacrylonitrile and modified polyacrylonitrile.
    Type: Grant
    Filed: December 12, 1975
    Date of Patent: March 14, 1978
    Assignee: Ciba-Geigy Corporation
    Inventor: Rainer Begrich
  • Patent number: 4033944
    Abstract: Fiber-reactive dyestuffs of the formula ##STR1## wherein ##STR2## is a dyestuff radical, the ring A is cyclopentenyl, cyclohexenyl or cycloheptenyl, X is chloro, bromo or fluoro and R is hydrogen, lower alkyl, cyclohexyl or phenyl. These fiber-reactive dyestuffs are suitable for dyeing and printing silk, leather, wool, polyamide, polyurethanes, and cellulosic materials.
    Type: Grant
    Filed: April 14, 1975
    Date of Patent: July 5, 1977
    Assignee: Ciba-Geigy Corporation
    Inventor: Rainer Begrich
  • Patent number: 3983115
    Abstract: Bis-dihalogeno-s-triazinyl-ureas of the formula ##EQU1## wherein each of X.sub.1 and X.sub.2 is halogen.
    Type: Grant
    Filed: December 24, 1974
    Date of Patent: September 28, 1976
    Assignee: Ciba-Geigy Corporation
    Inventors: Karl Seitz, Rainer Begrich, Henri Riat, Fritz Oesterlein
  • Patent number: 3939158
    Abstract: A process for the manufacture of N-(2,4-dihalo-s-triazin-6-yl)-ureas of the formula ##SPC1##Wherein X represents halogen, R represents alkyl, aryl or hydrogen and Y represents hydrogen or the sulphonic acid group, which comprises reacting a dihalo-amino-s-triazine of the formula ##SPC2##Wherein X and R have the meanings assigned to them hereinbefore, with chloro-sulphonylisocyanate and hydrolysing the resulting reaction product. The compounds of the formula (1) are suitable as starting products for the manufacture of reactive dyes, fluorescent whiteners or agro - chemicals.
    Type: Grant
    Filed: August 8, 1974
    Date of Patent: February 17, 1976
    Assignee: Ciba-Geigy AG
    Inventor: Rainer Begrich