Patents by Inventor Reinhold J. Leyrer

Reinhold J. Leyrer 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: 20040077517
    Abstract: Use of cationically modified, particulate, hydrophobic polymers, the surface of which has been cationically modified by coating with polyvalent metal ions and/or cationic surfactants, and the particle size of which is 10 nm to 100 &mgr;m, as additive to rinse compositions, care compositions, detergents and cleaners, and also rinse compositions, care compositions, detergents and cleaners which comprise the cationically modified, particulate, hydrophobic polymers.
    Type: Application
    Filed: December 4, 2002
    Publication date: April 22, 2004
    Inventors: Dieter Boeckh, Ralf Nrenberg, J?uuml;rgen Detering, Werner Bertleff, Holger Schpke, Reinhold J Leyrer, J?uuml;rgen Huff
  • Publication number: 20040005453
    Abstract: Optical display elements comprising a layer made from a deformable material (matrix) and from discrete polymer particles whose distribution in the matrix follows a defined spatial lattice structure.
    Type: Application
    Filed: June 17, 2003
    Publication date: January 8, 2004
    Applicant: BASF Aktiengesellschaft, Ludwigshafen, Germany
    Inventors: Reinhold J. Leyrer, Christoph Hamers, Holger Schoepke, Helmut Ritter, Hartmut Loewen
  • Publication number: 20030195135
    Abstract: Use of cationically modified, particulate, hydrophobic polymers, the surface of which has been cationically modified by coating with cationic polymers, and the particle size of which is 10 nm to 100 &mgr;m, as additive to rinse, cleaning and impregnation compositions for hard surfaces, and rinse, cleaning and impregnation compositions which comprise the cationically modified, particulate, hydrophobic polymers.
    Type: Application
    Filed: December 4, 2002
    Publication date: October 16, 2003
    Inventors: Dieter Boeckh, Ralf Nrenberg, S?ouml;ren Hildebrandt, Bernhard Mohr, Holger Schpke, Reinhold J Leyrer, J?uuml;rgen Huff
  • Publication number: 20030171246
    Abstract: The invention relates to the use of cationically-modified, particle-shaped, hydrophobic polymers as addition agents in rinsing, care, detergent, and cleaning products. The surface of said polymers is cationically modified by means of a coating of cationic polymers and the particle size of said polymers ranges from 10 nm to 100 &mgr;m.
    Type: Application
    Filed: December 3, 2002
    Publication date: September 11, 2003
    Inventors: Dieter Boeckh, Ralf Norenberg, Soren Hildebrandt, Bernhard Mohr, Holger Schopke, Reinhold J. Leyrer, Jurgen Huff
  • Publication number: 20030166766
    Abstract: The invention relates to paper coating materials, comprising a polymer, dispersed in water, by means of polyvinyl alcohol as protective colloid (PVA-dispersed polymerisate for short).
    Type: Application
    Filed: June 17, 2002
    Publication date: September 4, 2003
    Inventors: Reinhold J. Leyrer, Harutyun Hanciogullari
  • Patent number: 6541564
    Abstract: In a process for the metal-catalyzed preparation of copolymers of carbon monoxide and an olefinically unsaturated compound having from 2 to 20 carbon atoms in an aqueous medium, the copolymerization is carried out in the presence of a water-soluble macromolecular host compound which has a hydrophobic cavity and a hydrophilic shell.
    Type: Grant
    Filed: April 23, 2002
    Date of Patent: April 1, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Markus Schmid, Reinhold J. Leyrer, Mubarik Mahmood Chowdhry, Marc Oliver Kristen
  • Publication number: 20030020046
    Abstract: An aqueous composition contains a polymer dispersed in water with polyvinyl alcohol as a protective colloid (abbreviated to PVA-dispersed polymer) and a fluorescent or phosphorescent dye.
    Type: Application
    Filed: June 17, 2002
    Publication date: January 30, 2003
    Inventors: Reinhold J. Leyrer, Harutyun Hanciogullari
  • Publication number: 20020198359
    Abstract: In a process for the metal-catalyzed preparation of copolymers of carbon monoxide and an olefinically unsaturated compound having from 2 to 20 carbon atoms in an aqueous medium, the copolymerization is carried out in the presence of a water-soluble macromolecular host compound which has a hydrophobic cavity and a hydrophilic shell.
    Type: Application
    Filed: April 23, 2002
    Publication date: December 26, 2002
    Applicant: BASF Akiengesellschaft
    Inventors: Markus Schmid, Reinhold J. Leyrer, Mubarik Mahmood Chowdhry, Marc Oliver Kristen
  • Patent number: 6337131
    Abstract: Disclosed are core-shell particles, whose core and shell materials are capable of forming a two-phase system, the shell material being filmable, the core being essentially form-stable under shell-filming conditions and being only very minimally swellable by the shell material, if at all, the cores having a monodisperse size distribution, and there being a difference between the refractive indices of the core material and of the shell material of at least 0.001. Also disclosed are the preparation of the core-shell particles and their use for preparing effect colorants.
    Type: Grant
    Filed: April 26, 1999
    Date of Patent: January 8, 2002
    Assignee: BASF Aktiengesellschaft
    Inventors: Robert Rupaner, Reinhold J Leyrer, Peter Schuhmacher
  • Patent number: 5176962
    Abstract: Methacrylate (co)polymers containing carbazolyl side groups contain or are composed of repeating units of the general formula (I) ##STR1## where m is an integer of from 3 to 11. The novel methacrylate (co)polymers containing carbazolyl side groups can advantageously be used as photoconductors in photoconductive layers, in particular of electrophotographic recording elements.
    Type: Grant
    Filed: December 23, 1991
    Date of Patent: January 5, 1993
    Assignee: BASF Aktiengesellschaft
    Inventors: Reinhold J. Leyrer, Harald Lauke, Bernhard Nick, Peter Strohriegl, Dietrich Haarer
  • Patent number: 5116911
    Abstract: Methacrylate (co)polymers containing carbazolyl side groups contain or are composed of repeating units of the general formula (I) ##STR1## where m is an integer of from 3 to 11. The novel methacrylate (co)polymers containing carbazolyl side groups can advantageously be used as photoconductors in photoconductive layers, in particular of electrophotographic recording elements.
    Type: Grant
    Filed: February 8, 1990
    Date of Patent: May 26, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Reinhold J. Leyrer, Harald Lauke, Bernhard Nick, Peter Strohriegl, Dietrich Haarer
  • Patent number: 5100971
    Abstract: For the preparation of acrylate and/or methacrylate polymers containing carbazolyl side groups, polymers of acryloyl chloride and/or of methacryloxyl chloride are subjected to a polymer-analogous reaction in solution with alcoholates of N-(.omega.-hydroxyalkyl)-carbazoles. The poly(meth)acrylates containing carbazolyl side groups and prepared in this manner have good photoconductor properties and can advantageously be used in electrophotographic recording elements.
    Type: Grant
    Filed: February 8, 1990
    Date of Patent: March 31, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Reinhold J. Leyrer, Harald Lauke, Peter Strohriegl, Dietrich Haarer
  • Patent number: 5069991
    Abstract: A novel panchromatic electrophotographic recording element has an electrically conducting substrate and one or more photoconducting layers. The photoconducting layer contains one or more binders, several charge carrier-producing compounds or sensitizers, one or more charge carrier-transporting compounds (photoconductors) and, if required, additives. The sensitizers themselves are Victoria Blue FB (C.I. 44045), Crystal Violet FN (C.I. 42555), Rhodamine FB (C.I. 45170), Astrazone Orange R (C.I. 48040) and/or Astrazone Orange G (C.I. 48035), which are used together with naphtholactam dyes and/or with isoindolenine dyes. The naphtholactam dyes have one or more chromophores of the general basic structure ##STR1## in the molecule, and the isoindolenine dyes have one or more chromophores of the general basic structure ##STR2## in the molecule.
    Type: Grant
    Filed: October 17, 1989
    Date of Patent: December 3, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Reinhold J. Leyrer, Peter Neumann, Matthias Dust
  • Patent number: 4939068
    Abstract: The surface of plates, foils or ribbons consisting of aluminum or aluminum alloys are anodically oxidized in an aqueous electrolyte as the anodizing bath by a process in which the electrolyte used may contain organic and inorganic acids together with further additives. The aqueous electrolyte must contain one or more silanes I of the formula IX--(CH.sub.2).sub.y --Si(R.sup.1).sub.n (OR.sup.2).sub.3-n Iwhere y is an integer from 1 to 4, n, independently of y, is 0, 1 or 2, R.sup.1 and R.sup.2 are each C.sub.1 -C.sub.9 -alkyl or C.sub.6 -C.sub.12 -aryl, X is selected from X.sup.1 to X.sup.11 ##STR1## where R.sup.3 is hydrogen, C.sub.1 -C.sub.9 -alkyl, an alkanecarboxylic acid group of 1 to 9 carbon atoms or a carboxylic anhydride ring obtained by reacting one of the said alkanecarboxylic acid groups of 1 to 9 carbon atoms with the methylenecarboxylic acid group ##STR2## bonded to R.sup.3, R.sup.4 and R.sup.5 are each C.sub.1 -C.sub.9 -alkyl or C.sub.6 -C.sub.12 -aryl, R.sup.6 is hydrogen, C.sub.1 -C.sub.
    Type: Grant
    Filed: December 1, 1988
    Date of Patent: July 3, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Harald Lauke, Bernhard Nick, Reinhold J. Leyrer
  • Patent number: 4935330
    Abstract: A photopolymerizable mixture containing one or more ethylenically unsaturated, photopolymerizable or photocrosslinkable compounds and a photopolymerization initiator which comprises a combination of an aromatic carbonyl compound of the type stated in claim 1 and an s-triazine compound containing one or more halogen-substituted methyl groups, photosensitive recording elements which possess a photopolymerizable recording layer consisting of these photopolymerizable mixtures, and a process for the production of lithographic printing plates using these recording elements.
    Type: Grant
    Filed: November 14, 1989
    Date of Patent: June 19, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerhard Hofmann, Reiner Hoffman, Harald Lauke, Wilhelm Weber, Reinhold J. Leyrer
  • Patent number: 4935332
    Abstract: A sensitized lithographic printing plate is produced from an aluminum base which has been mechanically, chemically and/or electrochemically pretreated and anodically oxidized in a conventional manner and a photosensitive copying layer which is applied to this base, by a process in which a thin layer which imparts hydrophilic properties and consists of a hydrolysis product or condensate of one or more silanes is applied between the base and the copying layer.These lithographic printing plates are particularly useful for offset printing.
    Type: Grant
    Filed: July 10, 1989
    Date of Patent: June 19, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Harald Lauke, Wilhelm Weber, Reinhold J. Leyrer, Bernhard Nick, Thomas Loerzer
  • Patent number: 4924003
    Abstract: An electrophotographic recording element comprising(A) an electrically conducting base and(B) at least one photoconductive layer consisting essentially of(b.sub.1) at least one binder,(b.sub.2) at least one sensitizer which on exposure of layer (B) generates charge carriers and which is selected from the group of the isoindolenine dyes of the general structure I ##STR1## where the index and the variables have specified meanings, (b.sub.3) at least one photoconductor which transports the generated charge carriers and optionally(b.sub.4) additives,is useful for reprographic purposes, for producing printing plates, in particular offset plates, and for producing photoresists.
    Type: Grant
    Filed: May 24, 1989
    Date of Patent: May 8, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Reinhold J. Leyrer, Peter Neumann
  • Patent number: 4906541
    Abstract: An electrophotographic recording element comprising(A) an electrically conducting base and(B) at least one photoconductive layer consisting essentially of(b.sub.1) at least one binder,(b.sub.2) at least one sensitizer which on exposure of layer (B) generates charge carriers and which is selected from the group of the naphtholactam dyes of the general structure I ##STR1## where the indices and variables have specified meanings, (b.sub.3) at least one photoconductor which transports the generated charge carriers and optionally(b.sub.4) additives, and also novel naphtholactam dyes of the general formula I where R.sup.2 is substituted monocyclic 1,3-thiazolyl bonded to the naphtholactam structure via a carbon ring atom, the use of these novel naphtholactams I in electrophotographic and laser-optical recording elements and also novel reprographic processes and novel processes for producing offset printing plates and photoresists using the novel electrophotographic recording element.
    Type: Grant
    Filed: November 22, 1988
    Date of Patent: March 6, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Matthias Dust, Peter Neumann, Reinhold J. Leyrer
  • Patent number: 4880718
    Abstract: An electrophotographic recording element comprising(A) an electrically conducting base and(B) at least one photoconductive layer consisting essentially of(b.sub.1) at least one binder,(b.sub.2) at least one sensitizer which on exposure of layer (B) generates charge carriers and which is selected from the group of the isoindolenine dyes of the general structure I ##STR1## where the index and the variables have specified meanings, (b.sub.3) at least one index and the variables have specified the generated charge carriers and optionally(b.sub.4) additives,is useful for reprographic purposes, for producing printing plates, in particular offset plates, and for producing photoresists.
    Type: Grant
    Filed: November 22, 1988
    Date of Patent: November 14, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Reinhold J. Leyrer, Peter Neumann
  • Patent number: 4866183
    Abstract: Hexaarylbisimidazoles I ##STR1## where Ar.sup.1, Ar.sup.2 and Ar.sup.3 are each aryl, of which Ar.sup.2 and Ar.sup.3 can be linked to form an anellated ring system, are prepared by oxidizing the corresponding triarylimidazoles II in an aqueous/organic two-phase system in the presence of active amounts of an onium salt III.
    Type: Grant
    Filed: June 9, 1987
    Date of Patent: September 12, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Uwe Kempe, Toni Dockner, Helmut Karn, Thomas Bluemel, Reinhold J. Leyrer, Thomas Loerzer