Patents by Inventor Gerhard Holzer
Gerhard Holzer 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).
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Publication number: 20010055977Abstract: The invention relates to a process for establishing a communications connection (KOM2) between a mobile telephone terminal (TEA) of a first subscriber (A) and a communications unit (TEB) of a second subscriber (B), and to a network server (NESERV) for the execution of this process. A communications connection (KOM1) between the mobile telephone terminal (TEA) of the first subscriber (A) and the network server (NESERV) is initiated by the mobile telephone terminal (TEA). Via the initiated communications connection (KOM1) between the mobile telephone terminal (TEA) of the first subscriber (A) and the network server (NESERV), identity data describing the identity of a vehicle (CB) are sent from the mobile telephone terminal (TEA) to the network server (NESERV). By accessing an assignment database (DB), from these identity data the network server (NESERV) determines the identity of this vehicle (CB) and a communications address assigned to the determined vehicle in the assignment database (DB).Type: ApplicationFiled: April 19, 2001Publication date: December 27, 2001Inventor: Gerhard Holzer
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Patent number: 5614322Abstract: A foldable plastic tail or rear window shield for a car top or hood comprises a polyurethane monolayer. It is produced by pouring or casting a reaction mixture onto a planar casting or pouring substrate. The reaction mixture contains a bifunctional hydroxyl group-containing polyester, a trifunctional polyol, a polyisocyanate from a cycloaliphatic isocyanate urea adduct dissolved in a isophorone diisocyanate and optionally a bifunctional isophorone diisocyanate.Type: GrantFiled: January 10, 1994Date of Patent: March 25, 1997Assignee: Saint-Gobain Vitrage InternationalInventors: Ingrid Musil, Karin Broring, Udo Gelderie, Gerhard Holzer
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Patent number: 5277944Abstract: A process for the manufacture of a plate, sheet or film made of an impact-resistant polymer having thereon a scratch-resistant flexible coating of transparent polyurethane is described comprising the steps of:(i) applying a first reaction mixture on the plate, sheet or film of impact-resistant polymer, said first reaction mixture comprising:(a) an isocynate component and(b) a polyol component, and(ii) applying a second reaction mixture onto said first layer before said first layer has completely hardened, said second reaction mixture comprising(c) a second isocynate component, and(d) a second polyol component.The first reaction mixture has a composition which guarantees good adhesion to the plate, sheet or film whereas the second reaction mixture exhibits excellent scratch resistance.Type: GrantFiled: April 1, 1991Date of Patent: January 11, 1994Assignee: Saint-Gobain Vitrage InternationalInventors: Gerhard Holzer, Otto Jandeleit, Ingrid Musil, Udo Gelderie
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Patent number: 5223313Abstract: In a fire-resistant glazing consisting of at least two parallel glass panes held apart from one another, between which is disposed a layer of a hydrogel, the aqueous phase of which contains a dissolved salt, the solid phase of the hydrogel consists of the polymerized compound 2-hydroxy-3methacryloxypropyltrimethylammonium chloride.Type: GrantFiled: January 22, 1991Date of Patent: June 29, 1993Assignee: Saint Gobain Vitrage InternationalInventors: Gerhard Holzer, Udo Gelderie
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Patent number: 5099104Abstract: An electrically heatable car glazing (1) of laminated glass has a transparent surface coating (8) as the heating resistor. The outer glass plate (2) is provided, along the circumference of its inner side, with a frame-like heat-curing coating (6), and bus bars (7) of an electrically conductive heat-curing paint are provided on the frame-like coating. The surface coating (8) is placed over the bus bars (7), and metal foil bands (10) are placed above the bus bars (7) on the surface coating. The end portions (11) of the metal foil bands (10) are provided with a tear-proof plastic envelope (12), which is bonded to the glass plate (2).Type: GrantFiled: November 7, 1990Date of Patent: March 24, 1992Assignee: Saint Gobain Vitrage InternationalInventors: Gerhard Holzer, Franz Kramling, Friedrich Triebs
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Patent number: 5030686Abstract: A condensation-inhibiting transparent cover layer of soft elastic polyurethane for viewing windows or other transparent glass or plastic substrates. The reaction mixture for production of the cover layer contains, in addition to a trifunctional polyisocyanate and a trifunctional polyol, a difunctional sulfonated polyether polyol, i.e. one containing sulfonate groups, and a non-ionic tenside in the form of an ethoxylated fatty alcohol and/or an ethoxylated fatty amine.Type: GrantFiled: May 30, 1989Date of Patent: July 9, 1991Assignee: Isover Saint-GobainInventors: Gerhard Holzer, Udo Gelderie, Cornelia Breuer
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Patent number: 4983464Abstract: An anti-fire glazing composed of two sheets of glass maintained separated by a sealed intermediate peripheral frame, between which an aqueous solution containing a dissolved salt and a gelling agent has been placed. After filling, the solution is transformed into an aqueous gel, the aqueous phase of which contains the salt in solution, and the solid phase of which is a polymer. The gelling polymer is a cross-linked polyvinyl alcohol. A dialdehyde is used as the cross-linking agent.Type: GrantFiled: December 30, 1988Date of Patent: January 8, 1991Assignee: Saint Gobain VitrageInventors: Gerhard Holzer, Udo Gelderie
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Patent number: 4826914Abstract: A transparent cover layer of a soft elastic polyurethane for windshields or other transparent glass or plastic substrates. In order to give the cover layer an anti-fogging effect, the polyol component of the reaction mixture for the manufacture of the cover layer contains a difunctional sulfonated polyether polyol or a difunctional polyether polyol containing sulfonate groups having 0.5 to 13.2 percent by weight of OH groups and an average molecular weight of about 250 to 6500 g/mol, a trifunctional polyol having 5.1 to 12.8 percent by weight of OH groups and an average molecular weight of from 400 to about 1000 g/mol, as well as a non-ionic polyetherpolysiloxane having an average molecular weight of from 500 to 2000 g/mol.Type: GrantFiled: October 6, 1987Date of Patent: May 2, 1989Assignee: Saint-Gobain VitrageInventors: Helmer Raedisch, Gerhard Holzer, Udo Gelderie, Kornelia Breuer
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Patent number: 4745152Abstract: A transparent coating for windows or other transparent substrates made of glass or synthetic resin, consisting of a flexible elastic polyurethane, serves as a shatterproofing coating for substrates made of silicate glass or as a coating improving the scratch resistance of substrates made of synthetic resin. To reduce or prevent the formation of a deposit of moisture on the surface of the coating, the polyol component of the reaction mixture for preparing a coating pursuant to the invention consists of a difunctional sulfonated polyether polyol containing approximately 1 to 10% of OH groups by weight and a trifunctional polyol containing approximately 8 to 12% of OH groups by weight and having an average molecular weight of approximately 400 to approximately 1000 g/mole.Type: GrantFiled: February 20, 1987Date of Patent: May 17, 1988Assignee: Saint-Gobain VitrageInventors: Juergen Fock, Gunter Hahn, Gerhard Holzer, Helmer Radisch
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Patent number: 4741961Abstract: A transparent adhesive coating or film based on polyurethane. A polyurethane formed from at least one aliphatic or cycloaliphatic diisocyanate, at least one polyol chosen from among the polyether diols, the polycaprolactone diols, the polycarbonate diols, and the polybutadiene diols, and at least one bifunctional chain-lengthening agent containing an aromatic nucleus.Type: GrantFiled: February 26, 1986Date of Patent: May 3, 1988Assignee: Saint-Gobain VitrageInventors: Kurt C. Frisch, Daniel Klempner, Helmer Radisch, Gerhard Holzer
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Patent number: 4721648Abstract: For production of a composite glass pane from at least one silicate glass pane and at least one layer of a transparent plastics material, the plastics layer is glued to the glass pane by means of an UV-hardening adhesive. A homogeneous solution of photopolymerizable acrylic monomers (component A), a polymer (component B) and a photoinitiator (component C) is used as the adhesive, wherein the component (A) consists of a mixture of at least one .alpha., .beta.-unsaturated carboxylic acid and at least one monofunctional .alpha.,.beta.-unsaturated carboxylic acid ester of an alcohol comprising 2 to 10 C-atoms, possibly comprising also oxygen atoms in the form of ether groups and/or hydroxyl groups, and component (B) consists of a polymer composed entirely or predominantly of vinyl chloride, which polymer is possibly after-chlorinated.Type: GrantFiled: June 23, 1986Date of Patent: January 26, 1988Assignee: Saint-Gobain VitrageInventors: Wolfgang Kleine-Doepke, M. Reinhold Martin, Helmer Raedisch, Gerhard Holzer
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Patent number: 4705721Abstract: A transparent adhesive coating or film based on polyurethane. The coating or film comprises a polurethane formed from at least one aliphatic or cycloaliphatic diisocyanate, at least one polyol chosen from among the polyether diols, the polycaprolactone diols, the polycarbonate diols, and the polybutadiene diols, and at least one chain-lengthening agent which is a product of the reduction of dimeric acid to a diol. The adhesive coating or film is employed in laminated panes of glass and/or plastic material.Type: GrantFiled: February 26, 1986Date of Patent: November 10, 1987Assignee: Saint-Gobain VitrageInventors: Kurt C. Frisch, Daniel Klempner, Helmer Radisch, Gerhard Holzer
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Patent number: 4684694Abstract: A high optical quality polyurethane coating layer, with self-repairing and fog-resistant properties, utilized for panes made of glass and/or plastic materials. The layer is formed from a reactive mixture composed 10 to 75% by weight of a biuret or an isocyanurate of 1,6 hexamethylenediisocyanate, having a content of about 15 to 25% weight of NCO radicals and having an average molecular weight between about 450 and 850 and comprised about 90 to 25% by weight of a polyalcohol component essentially comprised of a plurifunctional polyalcohol having about 0.4 to 17% of its percentage weight comprised of OH radicals, and having a molecular weight between about 200 and 15,000, and having ethoxy-propoxy chains, comprised 50 to 90% by weight of ethoxy radicals and 50 to 10% by weight of propoxy radicals.Type: GrantFiled: December 6, 1985Date of Patent: August 4, 1987Assignee: Saint-Gobain VitrageInventors: Kornelia Breuer, Udo Gelderie, Gerhard Holzer, Helmer Raedisch
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Patent number: 4657796Abstract: A polyurethane coating layer, with self-repairing properties, for panes made of glass and/or plastic materials, which are exposed to atmospheric agents. The coating layer according to the invention is formed from a reactive mixture of a trifunctional isocyanate component such as the biurets or isocyanurates of 1,6 hexamethylenediisocyanate, having a content of about 15 to 25% by weight of NCO radicals and a polyalcohol component chosen from the plurifunctional polyester polyalcohols having about a 3 to 12% by weight content of OH radicals.Type: GrantFiled: December 6, 1985Date of Patent: April 14, 1987Assignee: Saint-Gobain VitrageInventors: Ingrid Musil, Gerhard Holzer, Helmer Raedisch