Patents by Inventor Wolfgang Arndt

Wolfgang Arndt 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: 20130273359
    Abstract: The present invention relates to the use of aqueous UV-reactive primers for the coating of substrates based on ethylene vinyl acetate copolymers (EVA copolymers) or rubber. The present invention further provides a novel method for joining articles using an aqueous UV-reactive primer.
    Type: Application
    Filed: November 21, 2011
    Publication date: October 17, 2013
    Applicant: BAYER INTELLECTUAL PROPERTY GMBH
    Inventors: Wolfgang Arndt, Erhard Luehmann, Stefan Sommer, Jan Weikard, Lucy Bai, Jane Sum, Henry Zhao
  • Publication number: 20130273375
    Abstract: The present invention relates to novel waterborne adhesives which are polymerisable by UV light and are capable of being activated by heat, and which particularly display good adhesion to difficult substrates, such as ethylene vinyl acetate copolymers (EVA) with a low vinyl acetate content, or rubber. The invention further provides a novel method in which, after the application of the waterborne adhesive to an article and drying, irradiation with UV light and at the same time or thereafter activation by heat are performed. The adhesive film which is irradiated and activated in this way is then bonded to a further article. The invention also provides the use of the adhesives to make items such as shoes.
    Type: Application
    Filed: November 24, 2011
    Publication date: October 17, 2013
    Applicant: Bayer Intellectual Property GmbH
    Inventors: Dirk Achten, Wolfgang Arndt, Harald Kraus, Jan Weikard
  • Patent number: 8557387
    Abstract: Aqueous polyurethane-polyurethane urea dispersions comprising a reaction product of: (i) an NCO prepolymer prepared from; (A) one or more di- or higher-functional polyols having a mean molecular weight of 400 to 5000 daltons, (B) optionally one or more di- or higher-functional polyol components having a molecular weight of from 62 to 399 daltons, and (C) one or more di- or poly-isocyanate components; and (ii) a mixture (D) of primary and/or secondary monoamino compounds (D1) and primary and/or secondary diamino compounds (D2); wherein at least one of the amino compounds of the mixture (D) has a functional group selected from sulfonates and carboxylates; wherein mixture (D) has a mean amino functionality of 1.65 to 1.95; and wherein the equivalent ratio of NCO groups in the NCO prepolymer to the total amount of isocyanate-reactive groups of the mixture (D) is 1.04 to 1.9; to processes for their preparation and to use thereof in the production of adhesive composites.
    Type: Grant
    Filed: October 24, 2008
    Date of Patent: October 15, 2013
    Assignee: Bayer MaterialScience AG
    Inventors: Harald Kraus, Wolfgang Henning, Wolfgang Arndt
  • Publication number: 20120225302
    Abstract: The present invention relates to aqueous compositions based on crystalline or semicrystalline polyurethane polymers, processes for the preparation thereof and adhesive systems comprising these aqueous compositions and the use thereof.
    Type: Application
    Filed: October 25, 2010
    Publication date: September 6, 2012
    Applicant: Bayer Intellectual Property GmbH
    Inventors: Jörg Büchner, Dirk Achten, Harald Kraus, Wolfgang Arndt
  • Patent number: 8114931
    Abstract: An aqueous polymer dispersion that includes a) a polyurethane dispersion having an average particle size of 60 to 350 nm and b) an aqueous silicon dioxide dispersion having a particle diameter of the SiO2 particles of 20 to 400 nm. The dispersion is prepared by mixing the polyurethane dispersion (a) with the silicon dioxide dispersion (b). The aqueous polymer dispersion can be used in adhesive compositions, which can be used to bond substrates together, especially substrates that are structural components of shoes.
    Type: Grant
    Filed: September 13, 2004
    Date of Patent: February 14, 2012
    Assignee: Bayer MaterialScience AG
    Inventors: Wolfgang Arndt, Rüdiger Musch, Knut Panskus, Thorsten Rische, Ralf Werner, Wolfgang Henning
  • Publication number: 20110217502
    Abstract: The present invention relates to an aqueous polyurethane urea dispersion comprising a polyurethane urea polymer comprising structural units of the formula (I) wherein Aromat represents a compound selected from the group consisting of phenylene, tolylene, xylylene, tetramethylxylylene and diphenylenemethane, and wherein the polyurethane urea is obtained from components comprising A) at least one aromatic diisocyanate, B) at least one polyether polyol having a number-average molecular weight of from 300 to 1500 Da, C) at least one compound having one to two isocyanate-reactive groups and at least one ionogenic group, D) at least one polyol having a number-average molecular weight of from 60 to 499 Da, and E) water, wherein the average overall functionality of compounds B) to D) is from 1.85 to 2.2 and wherein the sum of the amount of aromatic urea groups and the amount of urethane groups is 2700 to 5000 mmol per kg polyurethane urea polymer.
    Type: Application
    Filed: October 31, 2009
    Publication date: September 8, 2011
    Applicant: Bayer Material Science AG
    Inventors: Harald Kraus, Wolfgang Arndt, Wolfgang Henning, Thomas Münzmay, Alice Münzmay
  • Publication number: 20100266853
    Abstract: Aqueous polyurethane-polyurethane urea dispersions comprising a reaction product of: (i) an NCO prepolymer prepared from; (A) one or more di- or higher-functional polyols having a mean molecular weight of 400 to 5000 daltons, (B) optionally one or more di- or higher-functional polyol components having a molecular weight of from 62 to 399 daltons, (C) one or more compounds which are monofunctional within the scope of the isocyanate polyaddition reaction and have an ethylene oxide content of at least 50 wt. % and a molecular weight of at least 400 daltons, and (D) one or more di- or poly-isocyanate components; and (ii) a mixture (E) of primary and/or secondary monoamino compounds (E1) and primary and/or secondary diamino compounds (E2); wherein at least one of the amino compounds of the mixture (E) has a functional group selected from sulfonates and carboxylates; wherein mixture (E) has a mean amino functionality of 1.65 to 1.
    Type: Application
    Filed: October 24, 2008
    Publication date: October 21, 2010
    Applicant: Bayer MaterialScience AG
    Inventors: Harald Kraus, Wolfgang Henning, Wolfgang Arndt
  • Publication number: 20100266854
    Abstract: Aqueous polyurethane-polyurethane urea dispersions comprising a reaction product of: (i) an NCO prepolymer prepared from; (A) one or more di- or higher-functional polyols having a mean molecular weight of 400 to 5000 daltons, (B) optionally one or more di- or higher-functional polyol components having a molecular weight of from 62 to 399 daltons, and (C) one or more di- or poly-isocyanate components; and (ii) a mixture (D) of primary and/or secondary monoamino compounds (D1) and primary and/or secondary diamino compounds (D2); wherein at least one of the amino compounds of the mixture (D) has a functional group selected from sulfonates and carboxylates; wherein mixture (D) has a mean amino functionality of 1.65 to 1.95; and wherein the equivalent ratio of NCO groups in the NCO prepolymer to the total amount of isocyanate-reactive groups of the mixture (D) is 1.04 to 1.9; to processes for their preparation and to use thereof in the production of adhesive composites.
    Type: Application
    Filed: October 24, 2008
    Publication date: October 21, 2010
    Applicant: Bayer MaterialScience AG Patents & Licensing
    Inventors: Harald Kraus, Wolfgang Henning, Wolfgang Arndt
  • Publication number: 20090240005
    Abstract: The invention relates to aqueous dispersion adhesives based on a mixture of aqueous polyurethane or polyurethane-urea dispersions, to a process for their preparation, and to the use of the dispersion adhesives in the production of adhesive composites.
    Type: Application
    Filed: February 13, 2009
    Publication date: September 24, 2009
    Applicant: Bayer MaterialScience AG
    Inventors: Harald Kraus, Wolfgang Henning, Wolfgang Arndt, Erkut Ilter
  • Publication number: 20080171208
    Abstract: The invention relates to adhesives based on aqueous dispersions and surface-deactivated isocyanate particles and to latently reactive coatings, films and powders produced from such dispersions. The adhesives are prepared from aqueous compositions containing a) dispersed polymers with isocyanate-reactive groups; b) at least one dispersed surface-deactivated aliphatic solid polyisocyanate with a softening temperature of ?40° C.; c) one or more compounds of elements from subgroups 5 and 6 of the periodic system of elements, in which the particular element has an oxidation number of at least +4 and, d) optionally further additives and auxiliaries.
    Type: Application
    Filed: December 10, 2007
    Publication date: July 17, 2008
    Inventors: Jorg Buchner, Christoph Gurtler, Raul Pires, Wolfgang Henning, Wolfgang Arndt
  • Publication number: 20060069867
    Abstract: The present invention relates to a device as well as a method for the saving or storage of data on physically different storage devices. By distributing the data to physically different storage devices, the deletion or removal of specific data is simplified. In addition, the specific storage and protection of data, for example depending on its relevance, is thus made possible. In addition, under data security aspects exists the advantageous option to store data sets differently such that that it is impossible at all times that physical data sets are present in a storage device, which may not actually be accessed without authorization, such that data can also be securely transferred in this respect. Furthermore, for the devices and the method according to the invention, no complicated aids are required to ensure the complete, i.e. outright physical deletion of all data.
    Type: Application
    Filed: September 23, 2005
    Publication date: March 30, 2006
    Applicant: Bayer Business Services GmbH
    Inventors: Wolfgang Arndt, Joachim Bochmann, Frank Scheler
  • Publication number: 20060070124
    Abstract: A device and a method with a memory for the storage of data with a means for limiting the access rights to the data for a user. Usernames provided at authentication posse specific user rights, such as super administrator rights or independent inheritance rights. Thus the rights management is simplified to a certain degree, since the administrator is not required to assign rights to additional users. Furthermore, a temporal process of rights control is provided, whereby the administrator is not required to controlling the granting or terminating rights.
    Type: Application
    Filed: September 23, 2005
    Publication date: March 30, 2006
    Applicant: Bayer Business Services GmbH
    Inventors: Wolfgang Arndt, Joachim Bochmann, Frank Scheler
  • Publication number: 20050256261
    Abstract: The present invention relates to new polyurethane and/or polyurethane-urea dispersions having ionic or potentially ionic or nonionic groups in the polymer backbone, to a process for preparing these dispersions and to their use as adhesives.
    Type: Application
    Filed: May 5, 2005
    Publication date: November 17, 2005
    Inventors: Wolfgang Arndt, Wolfgang Henning, Jurgen Meixner, Thomas Munzmay, Ralf Werner
  • Patent number: 6916650
    Abstract: An isolate of useful bacteria, preferably of the genus Pseudomonas, preferably of the species Proradix, is used for the treatment of plants and/or seed and incubated in a culture medium containing phosphorus compounds, nitrogen compounds and succinic acid. The solution can be used directly for spraying plants and/or seed, optionally followed by vacuum treatment. Furthermore, the solution can be vacuum-dried, the powder being dissolved in water prior to use.
    Type: Grant
    Filed: May 24, 2002
    Date of Patent: July 12, 2005
    Assignee: Soùcon-Padena AG
    Inventor: Wolfgang Arndt
  • Publication number: 20050131109
    Abstract: An aqueous polymer dispersion that includes a) a polyurethane dispersion having an average particle size of 60 to 350 nm and b) an aqueous silicon dioxide dispersion having a particle diameter of the SiO2 particles of 20 to 400 nm. The dispersion is prepared by mixing the polyurethane dispersion (a) with the silicon dioxide dispersion (b). The aqueous polymer dispersion can be used in adhesive compositions, which can be used to bond substrates together, especially substrates that are structural components of shoes.
    Type: Application
    Filed: September 13, 2004
    Publication date: June 16, 2005
    Inventors: Wolfgang Arndt, Rudiger Musch, Knut Panskus, Thorsten Rische, Ralf Werner, Wolfgang Henning
  • Publication number: 20040059661
    Abstract: The invention concerns a system for displaying a portfolio comprising a computer-legible data memory with a database system. In the database system are stored basic objects, each of which is clearly linked to one or more basic data. The basic objects are allocated to one or more structural units in a multi-dimensional hierarchical model of a company or an institution. The structural units are stored in a relational database. The basic objects allocated to the individual structural units can be displayed with one or more basic data selectively or as a whole. The basic data can be patent applications/patents, contracts or products.
    Type: Application
    Filed: June 23, 2003
    Publication date: March 25, 2004
    Inventors: Wolfgang Arndt, Heinz-Josef Hilden, Norbert Pourie, Roseli Steinbock
  • Patent number: 6507640
    Abstract: An X-ray beam position monitor has a first plate assembly (1, 3) for detecting the position of the X-ray beam in a horizontal plane and a second plate assembly (6, 8) for detecting the position of the X-ray beam in a vertical plane. The first plate assembly (1, 3) and the second plate assembly (6, 8) are located at the same position along the direction of propagation of the X-ray beam, to provide a compact arrangement suitable for use with X-ray diffractors and for laboratory use.
    Type: Grant
    Filed: October 15, 2001
    Date of Patent: January 14, 2003
    Assignee: Medical Research Council
    Inventors: Ulrich Wolfgang Arndt, Martin Paul Kyte
  • Publication number: 20030008776
    Abstract: An isolate of useful bacteria, preferably of the genus Pseudomonas, preferably of the species Proradix, is used for the treatment of plants and/or seed and incubated in a culture medium containing phosphorus compounds, nitrogen compounds and succinic acid. The solution can be used directly for spraying plants and/or seed, optionally followed by vacuum treatment. Furthermore, the solution can be vacuum-dried, the powder being dissolved in water prior to use.
    Type: Application
    Filed: May 24, 2002
    Publication date: January 9, 2003
    Inventor: Wolfgang Arndt
  • Patent number: 6340642
    Abstract: A process for manufacturing a silicon semiconductor device having a reduced surface recombination velocity of charge carriers within a silicon wafer includes forming a plurality of semiconductor zones in the surface; reducing surface recombination velocity of charge carriers within the silicon wafer by maintaining temperature below 100° C. while sequentially performing the steps of cleaning the surface to remove oxide; drying the surface by blowing a non-oxidizing gas thereon; directly applying a layer of lacquer onto the surface at a temperature below 100° C.; and drying the layer of lacquer at a temperature below 100° C. to generate an electrically non-conducting layer and reduce the surface recombination velocity of charge carriers within the silicon wafer in which the layer of lacquer contains halogen in a concentration of more than 0.1 volume %; and forming at least one conducting structure on the surface of the layer of lacquer.
    Type: Grant
    Filed: November 30, 1998
    Date of Patent: January 22, 2002
    Assignee: Temic Telefunken microelectronics GmbH
    Inventors: Wolfgang Arndt, Klaus Graff, Alfons Hamberger, Petra Heim
  • Patent number: 6282263
    Abstract: An X-ray generator comprises an evacuated and sealed X-ray tube, an electron gun, an X-ray target, an internal electron mask, and an X-ray window consisting of a thin tube of material with low X-ray absorption and high mechanical strength, for example beryllium. The window connects the tube to the target assembly containing the X-ray target. The generator preferably also includes a system for focusing and steering the electron beam onto the target, a cooling system to cool the target material, kinematic mounts to allow precise and repeatable mounting of X-ray devices for focusing the X-ray beam, and X-ray focusing devices of varying configurations and methods. The X-ray generator of the invention produces an X-ray source having a focal spot or line of very small dimensions and is capable of producing a high intensity X-ray beam at a relatively small point of application using a low operating power.
    Type: Grant
    Filed: April 21, 1999
    Date of Patent: August 28, 2001
    Assignee: Bede Scientific Instruments Limited
    Inventors: Ulrich Wolfgang Arndt, James Victor Percival Long, Peter Duncumb