Patents by Inventor Hanspeter Sauter

Hanspeter Sauter 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: 6835329
    Abstract: The present invention provides compounds having the formula (1) in which each of the radicals R1, R2, R3 and R4, independently, represent hydrogen, hydroxy, halogen, C1-C20-alkyl, C1-C20-alkoxy, CN or COOR5, in which R5 is C1-C20-alkyl and Z represents a heterocyclic residue selected from the 2H-benzo[1,2-d]triazol-2-yl, 2H-naphtho[1,2-d]triazol-2-yl, benzimidazol-2-yl, benzoxazol-2-yl and benzofuran-2-yl moieties, optionally substituted by C1-C4-alkyl, C1-C4-alkoxy, halogen or NHCOC1-C4-alkyl, a process for their preparation, new intermediate benzoxazinones useful for their preparation and use of the compounds of formula (1) as UV-absorbers which have improved absorption spectrum characteristics, superior resistance to exposure to UV light and excellent thermal stability, relative to known triphenyltriazine compounds.
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: December 28, 2004
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Dieter Reinehr, Hanspeter Sauter, Rudolf Zink
  • Patent number: 6783698
    Abstract: The present invention relates to a mixture of fluorescent whitening agents comprising 20 to 70% by weight of a compound of formula (1), 30 to 80% of a compound of formula (2) and 0.1 to 10% of a compound of formula (3), compositions containing the mixture and the user of the compositions for whitening synthetic fibers, in particular, polyester.
    Type: Grant
    Filed: April 23, 2002
    Date of Patent: August 31, 2004
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Dieter Reinehr, Hanspeter Sauter, Hans Kramer, Werner Schreiber
  • Patent number: 6730655
    Abstract: There are described diquaternary ammonium compounds of the general formula: wherein R1 and R4 are each independently of the other C4-C16alkyl, phenyl or phenyl-C1-C10 alkyl, R2, R3, R5 and R6 are each independently of the others C1-C4alkyl, and A is a monovalent anion. The compounds exhibit a pronounced action against gram-positive and gram-negative bacteria, and also against yeast, molds and algae. They are accordingly suitable for the antimicrobial treatment of surfaces and for the preservation and disinfection of materials and cosmetic products, and especially also for the preparation of solid or liquid formulations and for the preservation of foodstuffs and drinks. The compounds are furthermore suitable for imparting antimicrobial properties to technical plant and for antimicrobial water treatment.
    Type: Grant
    Filed: September 19, 2001
    Date of Patent: May 4, 2004
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Dieter Reinehr, Dietmar Ochs, Hanspeter Sauter, Fernand Hoffstetter
  • Patent number: 6719922
    Abstract: The present invention relates to a mixture of fluorescent whitening agents comprising 20 to 70% by weight of a compound of formula (1), 30 to 80% of a compound of formula (2) and 0.5 to 5% of a compound of formula (3), compositions containing the mixture and the use of the compositions for whitening synthetic fibers, in particular polyester.
    Type: Grant
    Filed: July 8, 2002
    Date of Patent: April 13, 2004
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Dieter Reinehr, Hanspeter Sauter, Hans Kramer, Werner Schreiber
  • Publication number: 20040063706
    Abstract: A process for the preparation of a 4,4′-bistriazinylamino-stilbene-2,2′-disulphonic acid compound of formula (I) in which, independently, each R1 represents —NH2, —NH(C1-c10alkyl), —N(C1-C10alkyl)2, —NH(C2-C4hydroxyalkyl), —NH(C2-C4hydroxyalkyl)2, —N(C1-C10alkyl)(C2-C4hydroxyalalkyl), —NH(C1-C4alkoxy-C2-C4hydroxyalkyl), —N(C1-C4alkoxy-C2-C6hydroxyalkyl)2, —N(C1-C4alkoxy-C2-C4hydroxyalkyl)(C1-C10alkyl), —N(C1-C4alkoxy-C2C4hydroxyalkyl)(C2-C4hydroxyalkyl), —NH(C1-C4alkoxy-C1-C4alkoxy-C1-C4-alkyl), —N(C1-C4alkoxy-C1-C4alkoxy-C1-C4-alkyl)2, —N(C1-C4alkoxy-C1-C4alkoxy-C1-C4alkyl)(C1-C6alkyl), —N(C1-C6alkoxy-C1-C4alkoxy-C2-C4alkyl)(C2-C4hydroxyalkyl)-NH(C5-C7cycloalkyl), —N(C5-C7cycloalkyl)2, —NH(C6-C10aryl), NH(C7-C13aralkyl) or a morpholino, piperidino or pyrrolidino residue; M represents H, Na, Li, K, Ca, Mg, ammonium, or ammonium that is mono-, di-, tri- or tetrasubstituted by C1C4alkyl, C2-C4hydroxyalkyl
    Type: Application
    Filed: July 7, 2003
    Publication date: April 1, 2004
    Inventors: Georges Metzger, Dieter Reinehr, Hanspeter Sauter, Helena Dbaly
  • Publication number: 20040049052
    Abstract: Compounds having the formula: wherein R1 represents hydrogen, C1-C20 alkyl which is unsubstituted or substituted by one or more ammonium, mono-, di-, tri or tetra-C1-C12 alkylammonium groups or by one or more sulphonium groups or represents an aralkyl residue having a total of from 7 to 10 carbon atoms and, in which, the aryl group is unsubstituted or substituted by C1-C4alkyl, C1-C4 alkoxy or halogen and Z is a group selected from R2, R3 and R4, independently, representing hydrogen, C1-C4alkyl, C1-C4 alkoxy, halogen, NHCOC1-C4 alkyl or phenyl which is unsubstituted or substituted by. C1-C4 alkyl, C1-C4 alkoxy or halogen, a process for their preparation and use of the compounds of formula (1) as UV-absorbers which have improved absorption spectrum characteristics, superior resistance to exposure to UV light and excellent thermal stability, relative to known benzophenone compounds.
    Type: Application
    Filed: June 9, 2003
    Publication date: March 11, 2004
    Inventors: Dieter Reinehr, Hanspeter Sauter, Sonja Riesterer
  • Publication number: 20040013619
    Abstract: The present invention provides compounds having the formula (1) in which each of the radicals R1, R2, R3 and R4, independently, represent hydrogen, hydroxy, halogen, C1-C20-alkyl, C1-C20-alkoxy, CN or COOR5, in which R5 is C1-C20-alkyl and Z represents a heterocyclic residue selected from the 2H-benzo[1,2-d]triazol-2-yl, 2H-naphtho[1,2-d]triazol-2-yl, benzimidazol-2-yl, benzoxazol-2-yl and benzofuran-2-yl moieties, optionally substituted by C1-C4-alkyl, C1-C4-alkoxy, halogen or NHCOC1-C4-alkyl, a process for their preparation, new intermediate benzoxazinones useful for their preparation and use of the compounds of formula (1) as UV-absorbers which have improved absorption spectrum characteristics, superior resistance to exposure to UV light and excellent thermal stability, relative to known triphenyltriazine compounds.
    Type: Application
    Filed: March 31, 2003
    Publication date: January 22, 2004
    Inventors: Dieter Reinehr, Hanspeter Sauter, Rudolf Zink
  • Publication number: 20020061832
    Abstract: There are described diquaternary ammonium compounds of the general formula 1
    Type: Application
    Filed: September 19, 2001
    Publication date: May 23, 2002
    Inventors: Dieter Reinehr, Dietmar Ochs, Hanspeter Sauter, Fernand Hoffstetter
  • Patent number: 6215029
    Abstract: A process for the preparation of halohydroxydiphenyl compounds useful for protecting organic materials and articles from microorganisms, of the formula by acylation of a halogenated benzene compound (first stage), etherification of the acylated compound with a halogenated phenol compound (second stage), oxidation of the etherified compound (third stage) and hydrolysis of the oxidized compound in a fourth stage, according to the following reaction scheme: in which R1 and R2 independently of one another are F, Cl or Br; R3 and R4 independently of one another are hydrogen; or C1-C4alkyl; m is 1 to 3; and n is 1 or 2.
    Type: Grant
    Filed: June 9, 1999
    Date of Patent: April 10, 2001
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Urs Burckhardt, Armando Di Teodoro, Werner Hölzl, Dieter Reinehr, Rudolf Zink, Hanspeter Sauter, Uwe Gronde
  • Patent number: 6080208
    Abstract: The present invention provides new stilbene compounds which are useful as fluorescent whitening agents (FWAs), imparting high whiteness levels to textile fibre material treated with them, and which also impart a high sun protection factor (SPF) to textile fibre material treated with them. The present invention also concerns a method of imparting a high whiteness level and a high sun protection factor to textile fibre material, especially cotton, polyamide and wool, comprising treating the textile material with the new compounds.
    Type: Grant
    Filed: December 22, 1998
    Date of Patent: June 27, 2000
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Dieter Reinehr, Georges Metzger, Hanspeter Sauter
  • Patent number: 5945396
    Abstract: The present invention provides a compound having the formula: ##STR1## in which each R.sub.d is the same or different and each is --NH--Z--N(R.sub.a)(R.sub.b) or --N--?Z--N(R.sub.a)(R.sub.b)!.sub.2 in which Z is C.sub.2 -C.sub.14 alkylene or optionally substituted arylene, R.sub.a and R.sub.b are the same or different and each is C.sub.1 -C.sub.12 alkyl, or R.sub.a and R.sub.b, together with the nitrogen atom to which they are each attached, form a morpholino, piperidino or piperazino ring; each R.sub.c is the same or different and is NH.sub.2, NH(C.sub.1 -C.sub.4 alkyl), N(C.sub.1 -C.sub.4 alkyl).sub.2, N(CH.sub.2 CH.sub.2 OH).sub.2, O--C.sub.1 -C.sub.4 alkyl, ##STR2## alkali metal atom, ammonium or a cation formed from an amine; or a quaternized form thereof.
    Type: Grant
    Filed: December 23, 1997
    Date of Patent: August 31, 1999
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Claude Eckhardt, Georges Metzger, Dieter Reinehr, Hanspeter Sauter, Mario Dubini
  • Patent number: 5939379
    Abstract: The present invention relates to new compounds which are useful as ultraviolet absorbing agents (UVAs) and as fluorescent whitening agents (FWAs), and to a method of improving the sun protection factor (SPF) of textile fibre material, especially cotton, polyamide and wool, treated with the new compounds.
    Type: Grant
    Filed: June 2, 1997
    Date of Patent: August 17, 1999
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Claude Eckhardt, Dieter Reinehr, Georges Metzger, Hanspeter Sauter
  • Patent number: 5892031
    Abstract: The present invention provides new stilbene compounds which are useful as fluorescent whitening agents (FWAs), imparting high whiteness levels to textile fibre material treated with them, and which also impart a high sun protection factor (SPF) to textile fibre material treated with them. The present invention also concerns a method of imparting a high whiteness level and a high sun protection factor to textile fibre material, especially cotton, polyamide and wool, comprising treating the textile material with the new compounds.
    Type: Grant
    Filed: May 22, 1997
    Date of Patent: April 6, 1999
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Dieter Reinehr, Georges Metzger, Hanspeter Sauter