Patents by Inventor Sylke Haremza

Sylke Haremza 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).

  • Publication number: 20040034182
    Abstract: A process for the preparation of a reaction product (A) comprises the following stage (i):
    Type: Application
    Filed: June 2, 2003
    Publication date: February 19, 2004
    Inventors: Roman Benedikt Raether, Susanne Brinkmann-Rengel, Sylke Haremza, Wolfgang Bremser
  • Patent number: 6639033
    Abstract: The present invention provides a process for the free radical polymerization of one or more ethylenically unsaturated monomers, said process comprising polymerizing one or more ethylenically unsaturated monomers in the presence of one or more N-oxyl radicals of formula II, wherein X is S, NR5, O, SO or SO2, R5 is C1-C20-alkyl or C5-C8-cycloalkyl and R3 and R4 independently of one another, are C1-C4-alkyl, phenyl, naphthyl or an aromatic five-membered ring, or R3 and R4 together are —(CH2)o— and p and o, independently of one another, are an integer from 2 to 7.
    Type: Grant
    Filed: February 19, 2002
    Date of Patent: October 28, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Susanne Brinkmann-Rengel, Sylke Haremza, Heinz Friedrich Sutoris, David Christie, Roman Benedikt Raether, Jizhuang Cao
  • Publication number: 20030185865
    Abstract: Cosmetic or dermatological preparations for avoiding or reducing skin damage by peroxides or hydroperoxides formed as a result of endogenous or exogenous factors, with a content of
    Type: Application
    Filed: January 22, 2003
    Publication date: October 2, 2003
    Inventors: Axel Jentzsch, Heinz Friedrich Sutoris, Gerhard Wagenblast, Sylke Haremza
  • Publication number: 20030170306
    Abstract: A reaction product (A) which can be prepared by reaction, under free radical conditions, of at least one monomer (a) capable of free radical reaction, in the presence of at least one free radical initiator and of a radical of the formula (III) 1
    Type: Application
    Filed: April 21, 2003
    Publication date: September 11, 2003
    Inventors: Roman Benedikt Raether, Susanne Brinkmann-Rengel, Sylke Haremza
  • Patent number: 6616990
    Abstract: The present invention relates to chiral 1,3-dioxane compounds and diastereomers thereof of the general formula I where R1, R2 and R3 are as defined in the description, and the use of these compounds as chiral dopants for liquid-crystalline systems. The invention further relates to non-polymerizable or polymerizable liquid-crystalline compositions comprising at least one chiral 1,3-dioxane compound of the formula (I) of the invention, the use of these non-polymerizable or polymerizable liquid-crystalline compositions for producing optical components, the use of the polymerizable liquid-crystalline compositions for printing or coating substrates, for preparing dispersions and emulsions, films or pigments and optical components, printed or coated substrates, dispersions and emulsions, films and pigments of this type.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: September 9, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Frank Prechtl, Sylke Haremza, Frank Meyer, Robert Parker, Kathrin Kürschner, Volkmar Vill, Matthias Paul
  • Publication number: 20030109414
    Abstract: Disclosed are a detersive composition comprising a water-soluble or water-dispersible block copolymer preparable by controlled free-radical polymerization, a process for preparing such a detersive composition and the use of water-soluble or water-dispersible block copolymers preparable by controlled free-radical polymerization for preparing detersive compositions.
    Type: Application
    Filed: December 16, 2002
    Publication date: June 12, 2003
    Inventors: Roman Benedikt Raether, Sylke Haremza, Susanne Birkmann-Rengel
  • Patent number: 6569355
    Abstract: The use of compounds of the general formula I in which the substituents are as defined in the description, as chiral dopants for nematic or cholesteric liquid crystals for the generation of layers which reflect in color in the UV or IR region or for the preparation of pigments having a liquid-crystalline cholesteric order.
    Type: Grant
    Filed: October 3, 2000
    Date of Patent: May 27, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Frank Prechtl, Sylke Haremza, Frank Meyer, Robert Parker, Volkmar Vill, Gunnar Gesekus
  • Publication number: 20030083406
    Abstract: The present invention relates to 4-formylamino-N-methylpiperidine derivatives of the formula (I) 1
    Type: Application
    Filed: September 27, 2002
    Publication date: May 1, 2003
    Inventors: Sylke Haremza, Jurgen Krockenberger, Manfred Appel, Hubert Trauth, Alexander Aumuller
  • Publication number: 20030073793
    Abstract: A process for the preparation of polymers is described, wherein at least one first ethylenically unsaturated monomer is subjected to a free radical polymerization in the presence of stable free radicals or sources of stable free radicals and of a compound having at least one free thiol group to give a polymer, and wherein the molar ratio of compound having a free thiol group to stable free radicals is from 0.05 to 1.1.
    Type: Application
    Filed: September 27, 2002
    Publication date: April 17, 2003
    Inventors: David Christie, Sylke Haremza, Susanne Brinkmann-Regel, Roman Benedikt Raether
  • Publication number: 20030066984
    Abstract: Improved liquid crystalline materials may be prepared by doping liquid crystalline materials with chiral, uncharged metal compounds of formula [(P1—Y1—A1—Y2—M1—Y3—)nL]2Me or [(P1—Y1—A1—Y2—M1—Y3—)nL]Me(L′(—Y6—M2—Y5—A2—Y4—P2)n′)m. Groups P1 and P2 may be, independently, hydrogen, C1-C12-alkyl groups, polymerizable groups, or radicals containing a polymerizable group. Y1 to Y6 may be, independently, single chemical bonds, ether groups, thio groups, carbonyl groups, acid groups, etc. Groups A1 and A2 are spacers having from 1 to 30 carbon atoms, and M1 and M2 are mesogenic groups. Me may be a transition metal from the fourth, fifth or sixth period of the periodic table, except for technetium, silver, cadmium, gold, mercury, or any of the lanthanoids, or Me may be a main group element from group 14 (IUPAC system), except for carbon and lead.
    Type: Application
    Filed: December 11, 2001
    Publication date: April 10, 2003
    Applicant: BASF AKTIENGESELLSCHAFT
    Inventors: Frank Prechtl, Sylke Haremza, Robert Parker, Kathrin Kurschner, Manfred Braun, Antje Hahn, Ralf Fleischer
  • Patent number: 6545174
    Abstract: 4,4-Diarylbutadienes of the formula I, where the diene system has the Z,Z; Z,E; E,Z or E,E configuration or a mixture thereof, and where the variables independently of one another have the following meanings: R1 and R2 are hydrogen, C1-C20-alkyl, C2-C10-alkenyl, C3-C10-cycloalkyl, C3-C10-cycloalkenyl, C1-C12-alkoxy, C1-C20-alkoxycarbonyl, C1-C12-alkylamino, C1-C12-dialkylamino, aryl, hetaryl, unsubstituted or substituted, substituents which confer solubility in water and are selected from the group consisting of carboxylate, sulfonate, or ammonium residues; R3 is COOR5, CONR5R6; R4 is COOR6, CONR5R6; R5 and R6 are hydrogen, C1-C20-alkyl, C2-C10-alkenyl, C3-C10-cycloalkyl, C7-C10-bicycloalkyl, C3-C10-cycloalkenyl, C7-C10-bicycloalkenyl, aryl, hetaryl, unsubstituted or substituted; n is 1 to 3; and R3 and R4 are not COOCH3 when R1 and R2 are hydrogen, are used as photostable UV filters in cosmetic and pharmaceutical preparations to protect the human skin or human hair from the sun's rays,
    Type: Grant
    Filed: January 22, 2001
    Date of Patent: April 8, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Thorsten Habeck, Sylke Haremza, Volker Schehlmann, Horst Westenfelder, Thomas Wünsch, Michael Drögemüller, Volker Bomm
  • Publication number: 20030060544
    Abstract: A description is given of a stabilizer composition comprising
    Type: Application
    Filed: July 25, 2002
    Publication date: March 27, 2003
    Inventors: Heinz-Friedrich Sutoris, Sylke Haremza, Hubert Trauth, Erik Hofman, Manfred Appel
  • Publication number: 20030018137
    Abstract: A process for the preparation of a reaction product (A), which comprises the following stage (i):
    Type: Application
    Filed: June 13, 2002
    Publication date: January 23, 2003
    Inventors: Roman Benedikt Raether, Bernd Modery, Frank Braun, Susanne Brinkmann-Rengel, David Christie, Sylke Haremza
  • Patent number: 6409995
    Abstract: Use of amino-substituted hydroxybenzophenones of the formula I in which the variables have the meanings explained in the description, as photostable UV filters in cosmetic and pharmaceutical preparations for protecting human skin or human hair from the sun's rays, alone or together with compounds which absorb in the UV region and are known per se for cosmetic and pharmaceutical preparations.
    Type: Grant
    Filed: April 20, 2000
    Date of Patent: June 25, 2002
    Assignee: BASF Aktiengesellschaft
    Inventors: Thorsten Habeck, Frank Prechtl, Thomas Wünsch, Horst Westenfelder, Sylke Haremza, Thorsten Bach, Anja Spiegel
  • Publication number: 20020036285
    Abstract: Disclosed are polymerizable liquid-crystalline compounds of the general formula (I) 1
    Type: Application
    Filed: April 3, 2001
    Publication date: March 28, 2002
    Applicant: BASF Aktiengesellschaft
    Inventors: Frank Prechtl, Robert Parker, Peter Schuhmacher, Norbert Schneider, Sylke Haremza, Hans-Werner Schmidt, Gerold Schmitt
  • Publication number: 20020031621
    Abstract: The present invention relates to liquid-crystalline compositions of matter comprising, as components,
    Type: Application
    Filed: May 25, 2001
    Publication date: March 14, 2002
    Applicant: BASF AKTIENGESELLSCHAFT
    Inventors: Frank Prechtl, Sylke Haremza, Frank Meyer, Robert Parker, Kathrin Kurschner, Peter Schuhmacher, Hans-Werner Schmidt, Gerold Schmitt, Reiner Giesa
  • Publication number: 20020025301
    Abstract: Flavonoids of the formula 1
    Type: Application
    Filed: July 2, 2001
    Publication date: February 28, 2002
    Inventors: Sylke Haremza, Frank Prechtl, Thorsten Habeck
  • Publication number: 20020016310
    Abstract: 4,4-Diarylbutadienes of the formula I, 1
    Type: Application
    Filed: January 22, 2001
    Publication date: February 7, 2002
    Inventors: Thorsten Habeck, Sylke Haremza, Volker Schehlmann, Horst Westenfelder, Thomas Wunsch, Michael Drogemuller, Volker Bomm
  • Publication number: 20010030312
    Abstract: The present invention relates to chiral 1,3-dioxane compounds and diastereomers thereof of the general formula I 1
    Type: Application
    Filed: March 16, 2001
    Publication date: October 18, 2001
    Applicant: BASF Aktiengesellschaft
    Inventors: Frank Prechtl, Sylke Haremza, Frank Meyer, Robert Parker, Kathrin Kuerschner, Volkmar Vill, Mathias Paul
  • Patent number: 6238649
    Abstract: 4,4-Diarylbutadienes of the formula I, where the variables have the meanings explained in the description, are used as photostable UV filters in cosmetic and pharmaceutical preparations to protect the human skin or human hair from the sun's rays, alone or together with compounds which absorb in the UV region and are known per se for cosmetic and pharmaceutical preparations.
    Type: Grant
    Filed: August 13, 1998
    Date of Patent: May 29, 2001
    Assignee: BASF Aktiengesellschaft
    Inventors: Thorsten Habeck, Sylke Haremza, Volker Schehlmann, Horst Westenfelder, Thomas Wünsch, Michael Drögemüller, Volker Bomm