Patents by Inventor Robert Maleika

Robert Maleika 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: 20090130489
    Abstract: Compositions, suitable for coating surfaces, methods for their preparation and for coating surfaces therewith, where said compositions comprise: (a) 100,000 parts by weight of a primer composition comprising a binder material (a1), a primer solvent (a2) and a UV absorber (a3), wherein the primer composition is suitable as an adhesion-promoting agent between a thermoplastic substrate and a siloxane-based top coat; (b) 0 to 900,000 parts by weight of a solvent, and (c) 1 to 3000 parts by weight of a compound according to the general formula (I): wherein X represents a moiety selected from the group consisting —OR6, —OCH2CH2OR6, —OCH2CH(OH)CH2OR6 and —OCH(R7)COOR8, wherein R6 represents a branched or unbranched C1-C13 alkyl, C2-C20 alkenyl, C6-C12 aryl or —CO—C1-C18 alkyl, R7 represents H or a branched or unbranched C1-C8 alkyl, and R8 represents a C1-C12 alkyl, a C2-C12 alkenyl or a C5-C6 cycloalkyl, and wherein the composition has a viscosity of 40 s to 140 s measured in accordance with DIN EN ISO 2431 at
    Type: Application
    Filed: October 20, 2008
    Publication date: May 21, 2009
    Applicant: Bayer MaterialScience AG
    Inventors: Gunther Stollwerck, Robert Maleika, Frank Buckel, Peter Capellen
  • Publication number: 20090124727
    Abstract: The present invention relates to nanoparticle-modified polyisocyanates which have been modified by a special siloxane unit and consequently have improved performance properties and also storage stabilities.
    Type: Application
    Filed: November 10, 2008
    Publication date: May 14, 2009
    Applicant: Bayer MaterialScience AG
    Inventors: Arno Nennemann, Markus Mechtel, Thomas Klimmasch, Christopher Guertler, Michael Mager, Meike Niesten, Robert Maleika
  • Patent number: 7442430
    Abstract: A multi-layered product in the form of sheet, film or a three dimensional molded article is disclosed. The product comprised a first layer (A) having a thickness of 1 ?m to 2 mm containing polyalkyl (meth)acrylate and 0.01 to 20 percent relative to the weight of said first layer of a UV stabilizer and a second layer (B) that contains polycarbonate. The stabilizer conforms to formula (I) wherein X denotes OR1; OCH2CH2OR1; OCH2CH(OH)CH2OR1 or OCH(R2)COOR3, R1 is branched or unbranched C1-C13 alkyl, C2-C20 alkenyl, C6-C12 aryl or —CO—C1-C18 alkyl, R2 is H or branched or unbranched C1-C8 alkyl, and R3 is C1-C12 alkyl; C2-C12alkenyl or C5-C6 cycloalky. The product is characterized by its optical transparency and resistance to yellowing and is most suitable for glazing applications.
    Type: Grant
    Filed: April 10, 2006
    Date of Patent: October 28, 2008
    Assignee: Bayer MaterialScience AG
    Inventors: Frank Buckel, Gunther Stollwerck, Robert Maleika
  • Publication number: 20070237967
    Abstract: The present invention relates to a multi-layer product, the first layer being a UV-cured protective layer which contains SiO2 nanoparticles, and the second layer containing a thermoplastic substrate. In addition, the invention relates to the composition of the UV-curable first layer, a process for the production of the multi-layer products and products, such as e.g. glazing products, which contain the named multi-layer products.
    Type: Application
    Filed: April 3, 2007
    Publication date: October 11, 2007
    Inventors: Frank Buckel, Robert Maleika, Walter Koehler, Reiner Meyer
  • Publication number: 20060234061
    Abstract: A multi-layered product in the form of sheet, film or a three dimensional molded article is disclosed. The product comprised a first layer (A) having a thickness of 1 ?m to 2 mm containing polyalkyl (meth)acrylate and 0.01 to 20 percent relative to the weight of said first layer of a UV stabilizer and a second layer (B) that contains polycarbonate. The stabilizer conforms to formula (I) wherein X denotes OR1; OCH2CH2OR1; OCH2CH(OH)CH2OR1 or OCH(R2)COOR3, R1 is branched or unbranched C1-C13 alkyl, C2-C20 alkenyl, C6-C12 aryl or —CO—C1-C18 alkyl, R2 is H or branched or unbranched C1-C8 alkyl, and R3 is C1-C12 alkyl; C2-C12alkenyl or C5-C6 cycloalky. The product is characterized by its optical transparency and resistance to yellowing and is most suitable for glazing applications.
    Type: Application
    Filed: April 10, 2006
    Publication date: October 19, 2006
    Inventors: Frank Buckel, Gunther Stollwerck, Robert Maleika
  • Publication number: 20050153146
    Abstract: The invention describes a process for coating a substrate with at least two layers, characterized by the following steps: a) applying a first layer comprising a first inorganic component to a substrate or to one of at least one layer applied to a substrate; b) treating the first layer with a plasma; c) applying a second layer comprising a second inorganic component to the first layer treated with plasma in accordance with b).
    Type: Application
    Filed: December 1, 2004
    Publication date: July 14, 2005
    Inventors: Siegfried Thurm, Michael Mager, Robert Maleika, Uwe Noreiks
  • Publication number: 20050084663
    Abstract: A multilayer product characterized by its improved weatherability and mechanical properties is disclosed. The product contains a layer A containing a member selected from the group consisting of transparent thermoplastic material and a lacquer, the member containing at least one UV absorber, a layer B containing a transparent thermoplastic material and containing at least one colorant, and a layer C containing a transparent thermoplastic material. Also disclosed is a process for the preparation of the inventive multilayer product.
    Type: Application
    Filed: December 5, 2002
    Publication date: April 21, 2005
    Inventors: Rudiger Gorny, Siegfried Anders, Wolfgang Nising, Wolfgang Ebert, Robert Maleika, Martin Dobler, Melanie Mothrath
  • Patent number: 6852018
    Abstract: A device for testing the scratch resistance of a surface of a test specimen by means of a gas stream charged with solid particles, comprising: a tube, having an entry and an exit, for directing the gas stream on to a specimen holder with the surface to be tested, a means for providing the gas stream, and a metering device positioned along the tube for metering the solid particles into the gas stream, wherein a tube part is angled at an angle in the region of the tube exit and the angled tube part has, at the angle, an opening at which the specimen holder is positioned such that the gas stream is directed on to the specimen holder.
    Type: Grant
    Filed: October 22, 2003
    Date of Patent: February 8, 2005
    Assignee: Bayer Aktiengesellschaft
    Inventors: Andreas Bürgel, Georg Lamp, Robert Maleika, Leslaw Mleczko
  • Publication number: 20040092215
    Abstract: A device for testing the scratch resistance of a surface of a test specimen by means of a gas stream charged with solid particles, comprising:
    Type: Application
    Filed: October 22, 2003
    Publication date: May 13, 2004
    Inventors: Andreas Burgel, Georg Lamp, Robert Maleika, Leslaw Mleczko