Patents by Inventor Walter Uerdingen

Walter Uerdingen 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: 5958596
    Abstract: A process in which a dye film is cast, the film is peeled off from the substrate and stretched monoaxially, the stretched film is applied to a glass film, and the resultant laminate is conditioned at elevated temperature gives composite materials which are highly suitable for the production of optoelectronic instruments.
    Type: Grant
    Filed: February 18, 1997
    Date of Patent: September 28, 1999
    Assignee: Bayer Aktiengesellschaft
    Inventors: Uwe Claussen, Hanns Peter Muller, Walter Uerdingen
  • Patent number: 5382625
    Abstract: Particulate graft polymers composed of a core (a) of cross-linked diene rubber, a first envelope (b) of a cross-linked acrylate rubber, a second envelope (c) of a copolymer of resin-forming monomers and polyallyl monomers having at least three allyl groups in the molecule, and a third envelope (d) of a copolymer or homopolymer of resin forming monomers.
    Type: Grant
    Filed: December 12, 1985
    Date of Patent: January 17, 1995
    Assignee: Bayer Aktiengesellschaft
    Inventors: Christian Lindner, Walter Uerdingen, Karl-Heinz Ott, hans-Eberhard Braese
  • Patent number: 5194334
    Abstract: The use of molding compositions based on unsaturated polyester resins containing specific reactive groups and of sheet metals with a specially selected coating results in sheet metal/duroplast composite elements having excellent adhesion.
    Type: Grant
    Filed: October 25, 1990
    Date of Patent: March 16, 1993
    Assignee: DSM N.V.
    Inventors: Walter Uerdingen, Bert Brassat, Karl-Ludwig Noble, Bernhard Hess, Heino Muller, Heinz Eichner
  • Patent number: 5124382
    Abstract: The invention relates to blends of polyarylene sulfides, epoxides, anhydrides, glass fibers and optionally other fillers. The blends are distinguished by good mechanical properties.
    Type: Grant
    Filed: March 4, 1991
    Date of Patent: June 23, 1992
    Assignee: Bayer Aktiengesellschaft
    Inventors: Burkhard Kohler, Wolfgang Wehnert, Walter Uerdingen, Joachim Franke
  • Patent number: 5102929
    Abstract: The invention relates to mixtures of polyarylene sulphides, heterocyclic nitryoaryloxy compounds and optionally other additives. The mixtures are distinguished by good mechanical properties.
    Type: Grant
    Filed: March 11, 1991
    Date of Patent: April 7, 1992
    Assignee: Bayer Aktiengesellschaft
    Inventors: Burkhard Kohler, Walter Uerdingen, Klaus Kraft, Hans-Detlef Heinz, Wolfgang Wehnert
  • Patent number: 5064884
    Abstract: The invention relates to blends of polyarylene sulfides, epoxides, glass fibers, optionally anhydride-containing polymers and optionally other additives. They are distinguished by good mechanical properties.
    Type: Grant
    Filed: March 4, 1991
    Date of Patent: November 12, 1991
    Inventors: Burkhard Kohler, Walter Uerdingen, Wolfgang Wehnert, Manfred Schmidt, Walter Schafer, Klaus Reinking
  • Patent number: 5055345
    Abstract: A 0.3 to 2 mm thick multilayer composite material comprising the following layers:1st layer: 0.01 to 0.3 mm thick highly transparent thermoplastic2nd layer: 5 to 50 .mu.m thick decorative ink layer and/or 5 to 50 .mu.m thick adhesive layer3rd layer: 0.05 to 0.5 mm thick thermoplastic containing 0.1 to 30% by weight pigment4th layer: 0.05 to 0.8 mm thick highly elastic plastic containing up to 30% by weight pigment5th layer: 0.05 to 0.5 mm thick thermoplastic containing 0.1 to 30% by weight pigment6th layer: 5 to 50 .mu.m decorative ink layer and/or 5 to 50 .mu.m thick adhesive layer7th layer: 0.01 to 0.3 mm thick highly transparent thermoplastic is disclosedlayers 3 and 5 being optional.
    Type: Grant
    Filed: February 20, 1990
    Date of Patent: October 8, 1991
    Assignee: Bayer Aktiengesellschaft
    Inventors: Joachim Wank, Walter Uerdingen, Lutz Schrader, Werner Waldenrath
  • Patent number: 4961179
    Abstract: Reaction compositions of selected make-up result after curing in non-meltable polymers of high mechanical stability and low water uptake. Owing to the low birefringence of the cured products, these compositions are highly suitable for preparing carrier materials for optically and magnetically readable and/or writable data carriers.
    Type: Grant
    Filed: July 13, 1987
    Date of Patent: October 2, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Werner Kloker, Dieter Freitag, Walter Uerdingen, Bernhard Hess, Helmut Schmid
  • Patent number: 4812589
    Abstract: The invention relates to a process for the production of sulphonic acid ester group-containing polyhydroxyl compounds having an average hydroxyl functionality of from 1.5 to 4, comprising reacting(a) paraffin sulphochlorides which are obtained by sulphochlorination of paraffins containing from 10 to 18 carbon atoms or of industrial mixtures of these paraffins, with unreacted paraffins and/or with chloroparaffins, having saponifiable chlorine content, based on the total weight of component (a), of from 5 to 15% with(b) an alcohol which is at least trihydric and which contains primary and/or secondary hydroxyl groups within the molecular weight range of from 92 to 250 or with mixtures of polyhydric alcohols having a molecular weight in the range of from 62 to 250 with an average hydroxyl functionality of from 2.
    Type: Grant
    Filed: September 17, 1986
    Date of Patent: March 14, 1989
    Assignee: Bayer Aktiengesellschaft
    Inventors: Klaus Prater, Walter Uerdingen, Heinrich Heine, Dieter Freitag
  • Patent number: 4788224
    Abstract: Molded articles are produced in a two-stage process. In the first stage, an organic polyisocyanate is reacted with an organic compound containing at least two epoxide groups (NCO: epoxide equivalent ratio of 1.2:1 to 500:1) in the presence of a tertiary amine catalyst. This reaction is stopped when no more than 65% of the isocyanate groups have reacted by adding an alkylating sulfonic acid alkyl ester of methyl iodide and/or of dimethyl sulfate in an amount equivalent to the amount of tertiary amine catalyst present. A latent catalyst capable of being activated by heat is subsequently added to the intermediate product and the resultant mixture is heated in a mold to complete the crosslinking of the intermediate product and to form the molded article.
    Type: Grant
    Filed: December 11, 1987
    Date of Patent: November 29, 1988
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hanns P. Muller, Walter Uerdingen, Heinrich Heine
  • Patent number: 4728676
    Abstract: A thermosetting reactive resin mixture is made from an organic polyisocyanate, a polyepoxide and a heat activatable catalyst. The catalyst is a tertiary or quaternary ammonium salt of an alkylating or acidic ester of an organic phosphonic acid or of phosphoric acid. The polyisocyanate and polyepoxide are used in quantities such that the equivalent ratio of isocyanate groups to epoxide groups is from 1.2:1 to 70:1. These mixtures may be heated to produce plastics having excellent heat resistance, moisture and abrasion resistance, low dielectric losses and excellent molding properties.
    Type: Grant
    Filed: January 7, 1987
    Date of Patent: March 1, 1988
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hanns P. Muller, Dimitrios Kerimis, Heinrich Heine, Walter Uerdingen
  • Patent number: 4720519
    Abstract: Urea-modified bubble-free moldings based on polyisocyanate polyaddition products are made by reacting (a) an organic polyisocyanate with (b) a polyhydroxyl compound and/or polyepoxide in the presence of (c) a water chain extender in the form of an aqueous alkali aluminosilicate or an aqueous alkali-alkaline earth aluminosilicate of the zeolite type in a mold using cast resin technology. The reaction components are used in quantities such that the equivalent ratio of isocyanate to hydroxyl and/or epoxide groups is from 1.1:1 to 6.1. The chain extender is used in a quantity such that the amount of water is at least equivalent to the excess of isocyanate. These moldings may be made by a one-shot or a two-shot process. These moldings are characterized by better mechanical properties such as tensile strength and elongation than prior art moldings.
    Type: Grant
    Filed: February 26, 1986
    Date of Patent: January 19, 1988
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wilfried Orywol, Fritz Ehrhard, Walter Uerdingen
  • Patent number: 4690998
    Abstract: The invention relates to epxoy resins obtained by reaction of epichlorohydrin with selected mixtures of phenols for the production of thermosetting and cold-hardening moldings, coating compositions and adhesive compositions.
    Type: Grant
    Filed: February 14, 1986
    Date of Patent: September 1, 1987
    Assignee: Bayer Aktiengesellschaft
    Inventors: Bernd Wahle, Dieter Freitag, Walter Uerdingen, Heinrich Heine, Manfred Blazejak
  • Patent number: 4689376
    Abstract: This invention relates to heat-hardenable epoxide resin mixtures of at least one 1,2-polyepoxide having more than one 1,2-epoxide group per molecule, at least one cyclic carboxylic acid anhydride and at least one ammonium phosphonate or ammonium phosphate as a hardening catalyst, as well as further optional auxiliaries.
    Type: Grant
    Filed: December 12, 1985
    Date of Patent: August 25, 1987
    Assignee: Bayer Aktiengesellschaft
    Inventors: Dimitrios Kerimis, Hanns P. Muller, Walter Uerdingen, Heinrich Heine
  • Patent number: 4683267
    Abstract: Moulding compounds consisting of a mixture of (A) from 99.99 to 60 parts, by weight, of a polyoxymethylene; (B) from 0 to 40 parts, by weight, of an elastomer having a softening temperature below the crystallite melting point of polyoxymethylene (A) and a freezing point below 0.degree. C.; and (C) from 0.01 to 40 parts, by weight, of an aliphatic, rubber-like, high molecular weight adipate-carbonate mixed ester.
    Type: Grant
    Filed: June 3, 1985
    Date of Patent: July 28, 1987
    Assignee: Bayer Aktiengesellschaft
    Inventors: Christian Lindner, Karola Brudermanns, Helmut Waniczek, Walter Uerdingen, Helmut Hurnik
  • Patent number: 4666980
    Abstract: This invention provides thermoplastic moulding moulding compositions with good dimensional stability under heat and transparency consisting of particular graft polymers and optionally thermoplastic polymer resins.
    Type: Grant
    Filed: June 26, 1985
    Date of Patent: May 19, 1987
    Assignee: Bayer Aktiengesellschaft
    Inventors: Christian Lindner, Karl-Heinz Ott, Walter Uerdingen, Hans-Eberhard Braese, Hans-Jurgen Kress
  • Patent number: 4657976
    Abstract: This invention relates to thermoplastic moulding compositions of vinyl chloride polymers, certain graft polymers, certain resin-like copolymer additives and certain rubber-like copolymers for the production of films having improved resistance to ageing.
    Type: Grant
    Filed: July 25, 1983
    Date of Patent: April 14, 1987
    Assignee: Bayer Aktiengesellschaft
    Inventors: Karl-Heinz Ott, Christian Lindner, Walter Uerdingen, Hans-Eberhard Braese, Helmut Hurnik
  • Patent number: 4533728
    Abstract: Non-aromatic polyester carbonates which have a high molecular weight are obtained if polycondensation is stopped in a reversible manner by the addition of phenol, the phenol is subsequently removed and polycondensation is continued.
    Type: Grant
    Filed: June 11, 1984
    Date of Patent: August 6, 1985
    Assignee: Bayer Aktiengesellschaft
    Inventors: Helmut Waniczek, Walter Uerdingen, Karola Brudermanns
  • Patent number: 4522964
    Abstract: The invention relates to an improved process for the production of polymer powders based on graft polymers and optionally rubber-elastic polymers and vinyl monomer polymers.
    Type: Grant
    Filed: March 28, 1984
    Date of Patent: June 11, 1985
    Assignee: Bayer Aktiengesellschaft
    Inventors: Christian Lindner, Walter Uerdingen, Jurgen Hinz, Ludwig Trabert
  • Patent number: 4518515
    Abstract: This invention relates to thermoplastic moulding compositions of vinyl chloride polymers, certain graft polymers, certain resin-like copolymer additives and certain rubber-like copolymers for the production of films having improved resistance to ageing.
    Type: Grant
    Filed: July 25, 1983
    Date of Patent: May 21, 1985
    Assignee: Bayer Aktiengesellschaft
    Inventors: Karl-Heinz Ott, Christian Lindner, Walter Uerdingen, Hans-Eberhard Braese, Helmut Hurnik