Patents by Inventor Paul Spielau
Paul Spielau 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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Patent number: 5219659Abstract: A suture material is made of a monofil of polyvinylidene fluoride which is drawn at a ratio of from 1:3 to 1:8 and which exhibits improved properties of elongation and elasticity.Type: GrantFiled: August 15, 1988Date of Patent: June 15, 1993Assignee: Gerhard M. KrahmerInventors: Josef Weber, Paul Spielau, Jurgen Fenske, Hans-Jurgen Schrick, Gerhard M. Krahmer
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Patent number: 5177139Abstract: A description is given of a molding compound made of elastomeric polyolefin rubbers, polyethylene and/or ethylene copolymers and additives, said compound comprising per 100 parts of polyolefin rubber, 25 to 100 parts by weight of polyethylene and/or ethylene copolymers having a MFI (190/2,16) of less than 0.1 [g/10 min], and between 16 and 28 parts by weight of a mineral oil. Also described is an elastic sealing strip, more particularly a roof sealing strip, made from the said molding compound by calendering or extruding.Type: GrantFiled: February 19, 1991Date of Patent: January 5, 1993Assignee: Huels Troisdorf AktiengesellschaftInventors: Karlo Klaar, Paul Spielau
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Patent number: 4917944Abstract: The invention describes a weatherable, plasticizer-free, uncrosslinked, and deep-drawable sheet, especially for the internal outfitting and external outfitting of automotive vehicles, as well as a process for its production, containing 65-25% by weight of a partially crystalline ethylene-propylene-diene terpolymer and 35-75% by weight of a homo- and/or copolymer of propylene, 0-10% by weight of fillers, as well as stabilizers and lubricants, the extruded or calendered sheet exhibiting a tensile strength at break in the longitudinal direction of at least 20 N/mm.sup.2. An advantageous further development of the invention comprises a composite sheet of EPDM/PP sheet with a crosslinked polyolefin foam layer.Type: GrantFiled: September 30, 1987Date of Patent: April 17, 1990Assignee: Huels Troisdorf AktiengesellschaftInventors: Hans-Ulrich Breitscheidel, Rudolf Kautz, Werner Kuhnel, Manfred Simm, Paul Spielau, Richard Weiss
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Patent number: 4870045Abstract: A molded catalyst has a catalyst material homogeneously distributed in an inorganic molding or a catalytic material anchored on the surface of molding is produced from a flowable molding composition made up of(a) an oxide mixture with contents of amorphous SiO.sub.2 and aluminum oxide and/or(b) electrostatic precipitator ash from high-temperature coal-burning power plants and/or(c) calcined ground bauxite, as a reactive, finely divided component, and an alkali silicate solution as well as optionally finely divided fillers, by casting into a mold or, respectively, by pressing or preferably extrusion and hardening of the molding composition at temperatures of 50.degree.-95.degree. C. Removal of water at 100.degree.-550.degree. C. is possible, as well as baking at temperatures of up to 1,500.degree. C.Type: GrantFiled: July 23, 1987Date of Patent: September 26, 1989Assignee: Dynamit Nobel AktiengesellschaftInventors: Bertram Gasper, Karlheinz Neuschaffer, Paul Spielau
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Patent number: 4833005Abstract: A laminate is made of textile sheet structures of synthetic fibers or glass fibers with a covering of polypropylene. The polypropylene is crosslinked by addition of crosslinking agents. The laminate has good electrical insulating properties, perfect solder bath stability, and good mechanical machinability. This laminate is provided, in heated presses, with metal layers or can be provided, in heated presses, with metal layers or can be provided with such metals layers by the application of metallic foils or by electrolytical methods, and serves for the manufacture of printed circuits and ribbon cables. An advantageous production of the textile sheet structures encased with crosslinked polypropylene can be performed on roll stands by thermoplastic encasing and smoothing in a continuous process.Type: GrantFiled: December 2, 1987Date of Patent: May 23, 1989Assignee: Dynamit Nobel AktiengesellschaftInventors: Karlo Klaar, Paul Spielau, Werner Kuhnel
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Patent number: 4826552Abstract: A process for the production of multiple-layer moldings from a substrate, member based on polypropylene and an elastomer foam is provided wherein lamination of the foam to the substrate member and shaping of the polypropylene take place in one working step.Type: GrantFiled: April 29, 1987Date of Patent: May 2, 1989Assignee: Dynamit Nobel AktiengesellschaftInventors: Hans-Ulrich Breitscheidel, Karlo Klaar, Paul Spielau
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Patent number: 4751121Abstract: The invention describes a multi-ply, self-adhesive and deep-drawable protective sheet, especially for the internal and external outfitting of automotive vehicles, consisting of a carrier sheet containing a thermoplastic synthetic resin based on an ethylene-propylene-diene terpolymer and/or an ethylene-propylene copolymer and a homo- and/or copolymer of propylene, small amounts of fillers and conventional additives; a pressure-sensitive adhesive layer based on an alkyl acrylate and/or methacrylate and/or a copolymerizable, ethylenically unsaturated monomer, such as acylic acid, and a cover layer of a unilaterally siliconized polyolefin film.Type: GrantFiled: May 28, 1986Date of Patent: June 14, 1988Assignee: Huels Troisdorf AktiengesellschaftInventors: Werner Kuhnel, Manfred Simm, Paul Spielau, Rudolf Kautz, Johan Harmsen, Henk van der Mey
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Patent number: 4681631Abstract: An inorganic, aqueous molding composition is described which can be hardened at low temperatures into molded parts having a high flexural stress at break.The molding composition is produced from electrostatic precipitator ash of high-temperature coal-burning power plants, this ash containing 45-55% by weight of vitreous SiO.sub.2 in addition to Al.sub.2 O.sub.3, or from calcined bauxite by reaction with an alkaline alkali silicate solution at a low temperature; fillers being optionally present.Type: GrantFiled: April 7, 1986Date of Patent: July 21, 1987Assignee: Dynamit Nobel AktiengesellschaftInventors: Hans-Werner Engels, Karlheinz Neuschaffer, Paul Spielau
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Patent number: 4680317Abstract: An expandable molding composition for the production of a cross-linked foam material, and a process for the manufacture of the foam from a mixture of polyolefin and a selected, partially crystalline ethylene-propylene terpolymer, a blowing agent, and optionally a crosslinking agent are disclosed.Type: GrantFiled: April 29, 1985Date of Patent: July 14, 1987Assignee: Dynamit Nobel AktiengesellschaftInventors: Werner Kuhnel, Paul Spielau
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Exhaust gas catalyst support of inorganic molding compositions and process for producing the support
Patent number: 4668659Abstract: An exhaust gas catalyst support having hollow channels lined with .gamma.-Al.sub.2 O.sub.3 is formed by preparing an inorganic molding composition which actively hardens at 60.degree.-120.degree. C.; the molding composition containing an alkali silicate solution and a solid component reactive with the alkali silicate solution, which component can consist of an oxide mixture with contents of amorphous SiO.sub.2 and aluminum oxide and/or electrostatic precipitator ash from high-temperature coal-burning power plants and/or calcined ground bauxite and/or metakaolin; the hollow channels contained within the exhaust gas catalyst support are formed by reaction of aluminum rods or wires in the alkali silicate solution, with the simultaneous precipitation of alumina hydrate. In a subsequent heating step, the .gamma.-aluminum oxide lining is formed from the alumina hydrate, the lining serving for anchoring and fixation of a catalyst metal within the catalyst support.Type: GrantFiled: April 7, 1986Date of Patent: May 26, 1987Assignee: Dynamit Nobel AktiengesellschaftInventors: Hans-Werner Engels, Karlheinz Neuschaeffer, Paul Spielau -
Patent number: 4666956Abstract: A biocidal composition based on organic arsenic compounds, comprising at least one tin compound in an amount affective to prevent elution of the arsenic compound from a composition containing them, particularly molding compositions for the production of molded plastic articles, particularly based on flexible PVC and/or ethylene/vinyl acetate copolymers or graft polymers or, optionally, polyethylene, containing stabilizers imparting stability to light, weather and heat, and optionally conventional additives such as colorants, fillers and slip agents, and containing further an arsenic compound as a biocidal agent are treated with such tin compound to prevent elution of the biocidal compound.Type: GrantFiled: August 20, 1985Date of Patent: May 19, 1987Assignee: Dynamit Nobel AgInventors: Paul Spielau, Horst Vohwinkel, Peter Putz
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Patent number: 4652326Abstract: A process for the production of semifinished products and/or molded components from polypropylene by grafting thereto an alkoxysilane compound in the presence of an organic peroxide involves mising the polypropylene, the silane compound, and the peroxide and subsequently plasticizing and extruding at a temperature of about 170.degree.-240.degree. C. The process utilizes an essentially isotactic homopolymer of propylene with a density of about 0.90-0.91 g/cm.sup.3 and a melt index MFI (#.degree. C./5 kp) of smaller than 0.7 g/10 min, preferably smaller than 0.1 g/10 min, and with a molecular weight higher than 5.multidot.10.sup.5. An initially non-crosslinked semifinished product is obtained.Type: GrantFiled: July 30, 1984Date of Patent: March 24, 1987Assignee: Dynamit Nobel AktiengesellschaftInventors: Paul Spielau, Werner Kuhnel, Karlo Klaar, Bertram Gaspar, Richard Weiss, Horst Ulb, Hans-Ulrich Breitscheidel, Gerd Klingberg, Jurgen Fenske
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Patent number: 4614753Abstract: A method for producing foam polyolefin products which are light-stable and weather-resistant are obtained by the combined use of the following stabilizers:(a) phenolic antioxidants,(b) substituted benzophenones and/or substituted benzotriazoles, and(c) sterically hindered amines.Type: GrantFiled: February 14, 1986Date of Patent: September 30, 1986Assignee: Dynamit Nobel AGInventors: Werner Kuhnel, Paul Spielau
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Patent number: 4608795Abstract: Facings for use as building components with a solid molded part constituting the visible side and a foam member of an inorganic and/or organic foam can be produced by shaping and heat curing from inorganic, aqueous molding compositions, wherein the molding composition contains a reactive oxide mixture, an alkali silicate solution, optionally alkali hydroxide, and fillers and auxiliary agents.Type: GrantFiled: December 16, 1983Date of Patent: September 2, 1986Assignee: Dynamit Nobel AktiengesellschaftInventors: Karl H. Neuschaeffer, Paul Spielau, Hans-Werner Engels, Guenter Zoche
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Patent number: 4590221Abstract: A method for producing foam polyolefin products which are light-stable and weather-resistant are obtained by the combined use of the following stabilizers:(a) phenolic antioxidants,(b) substituted benzophenones and/or substituted benzotriazoles, and(c) sterically hindered amines.Type: GrantFiled: November 28, 1984Date of Patent: May 20, 1986Assignee: Dynamit Nobel AGInventors: Werner Kuhnel, Paul Spielau
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Patent number: 4550051Abstract: A laminate based on epoxy resin for printed circuits has epoxy resin-impregnated outer plies, each containing a substrate of glass fibers and epoxy resin-impregnated core plies, each containing a flat textile form or construction made of synthetic thermoplastic fibers.Type: GrantFiled: May 4, 1984Date of Patent: October 29, 1985Assignee: Dynamit Nobel AktiengesellschaftInventors: Paul Spielau, Helmut Fassbender, Richard Weiss
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Patent number: 4533393Abstract: Molded parts having high flexural strength, based on alkali silicates, can be produced by casting and/or press-molding and curing by heating from aqueous molding compositions which are prepared from an oxide mixture containing amorphous silicic acid and aluminum oxide, as well as, optionally, as an additional component, aqueous, amorphous, disperse-powdery silicic acid, dissolved SiO.sub.2, and alkali from alkali silicate solutions, optionally alkali hydroxide or its aqueous solutions and, if desired, fillers, by means of mixing under agitation. By addition of a blowing agent inorganic foamed products can be obtained.Type: GrantFiled: December 16, 1983Date of Patent: August 6, 1985Assignee: Dynamit Nobel AktiengesellschaftInventors: Karl H. Neuschaeffer, Paul Spielau, Gunter Zoche, Hans-Werner Engels
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Patent number: 4511619Abstract: A sealing sheet for the building industry made up of at least one layer which contains an elastomeric synthetic resin that is devoid of, i.e., free of vulcanization accelerator, and that contains fillers, especially carbon admixed with an ethylene-propylene-diene terpolymer and/or ethylene-propylene copolymer and which has, on the outside and/or between layers of a synthetic resin, a reinforcing layer laminated in place with the use of heat and comprised of a fabric, a mat, a knitted material, a nonwoven material, or a similar material formed of a synthetic resin and/or of glass fibers.Type: GrantFiled: August 13, 1984Date of Patent: April 16, 1985Assignee: Dynamit Nobel AGInventors: Werner Kuhnel, Peter Putz, Manfred Simm, Paul Spielau
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Patent number: 4435466Abstract: A multi-layered sealing sheet for the building industry is prepared so that all plies which contain elastomeric synthetic resins are devoid of vulcanization accelerator and consist of an elastomeric synthetic resin on the basis of ethylene-propylene-diene terpolymers and/or ethylene-propylene copolymers. A reinforcing insert is laminated in between the layers with the use of heat and is a fabric, a mat, a knitted material, or a similar material of synthetic resin fibers and/or glass fibers.Type: GrantFiled: September 22, 1982Date of Patent: March 6, 1984Assignee: Dynamit Nobel AktiengesellschaftInventors: Werner Kuhnel, Peter Putz, Manfred Simm, Paul Spielau
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Patent number: 4417932Abstract: A process for the continuous production of a sheeting of stratified material from synthetic resin foam particles especially particles of crosslinking polyethylene includes the steps of scattering foam particles onto a conveying means, preheating the foam particles during conveyance, superficially to a temperature in the range between 100.degree. and 160.degree. C.; thereafter feeding the thus-preheated foam particles to means defining a free falling zone; causing the preheated particle to free-fall within said zone; further heating the particles during falling, to a temperature of at least 200.degree. C., and, at the end of the free fall, piling up the particles on a support surface; compacting the piled-up particles into a sheet-like layer on said surface; and sizing the preliminarily compacted sheet with simultaneous cooling.Type: GrantFiled: September 25, 1981Date of Patent: November 29, 1983Assignee: Dynamit Nobel AktiengesellschaftInventors: Hans-Ulrich Breitscheidel, Paul Spielau, Franz-Werner Alfter