Patents by Inventor Rolf Roers
Rolf Roers 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: 9487616Abstract: An isocyanate-terminated prepolymer C having an NCO content of from ?26% by mass to ?31.0% by mass is obtainable from the reaction of an isocyanate composition A having a viscosity at 25° C. of from ?60 mPas to ?800 mPas, comprising from ?25% by mass to ?60% by mass MDI and from ?40% by mass to ?75% by mass pMDI, wherein the sum of the amounts of those components is ?100% by mass, with a bifunctional polyester ether polyol B having an OH number of ?200 mg(KOH)/g and ?500 mg(KOH)/g, obtained from the reaction of a dicarboxylic acid/dicarboxylic acid derivative with at least one polyol and with an epoxide, wherein the polyester ether polyol B is used in amounts of from ?1.5% by mass to ?6.0% by mass, based on the sum of the masses of A and B. The invention further provides a PUR/PIR polymer produced from the prepolymer C, its use and composite elements based thereon.Type: GrantFiled: July 11, 2011Date of Patent: November 8, 2016Assignee: Covestro Deutschland AGInventors: Hans-Georg Pirkl, Manfred Schmidt, Reinhard Albers, Johannes Braak, Rolf Roers
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Patent number: 9382371Abstract: The invention relates to a process for the production of a foam composite element, comprising the steps of providing a facing, applying adhesion promoter, and applying a foam layer comprising polyurethane and/or polyisocyanurate to the adhesion promoter, characterized in that the adhesion promoter consists of at least one compound selected from the group consisting of polyether polyol (B.1), polymer polyol (B.2), polyurea dispersion (B.3), polyester polyol (B.4) and PIPA polyol (B.5). The invention relates further to the use of at least one compound selected from the group consisting of polyether polyol, polymer polyol and polyurea dispersion as adhesion promoter in the production of foam composite elements, as well as to foam composite elements produced by the process according to the invention.Type: GrantFiled: July 23, 2010Date of Patent: July 5, 2016Assignee: Covestro Deutschland AGInventors: Johannes Van De Braak, Rolf Roers, Peter Haas
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Publication number: 20150368902Abstract: The invention relates to a method for producing a multi-layered reinforced concrete element (10), comprising at least one first concrete wall section (11) in composite with a reinforcement body (13), wherein the concrete element (10) comprises an insulating layer (14), which lies at least indirectly against the first concrete wall section (11), and wherein the reinforcement body (13) is formed at least partially so as to protrude from the first concrete wall section (11) and so as to penetrate the insulating layer (14), involving the following steps of: preparing the composite of the first concrete wall section (11) with the reinforcement body (13) that at least partially protrudes therefrom; preparing a fill (15), in particular in an upwardly open fill container (23); arranging the first concrete wall section (11) with the reinforcement body (13) arranged thereon over the surface of the fill (15) such that a protruding section (13?) of the reinforcement body (13) is arranged on the underside of the first conType: ApplicationFiled: February 10, 2014Publication date: December 24, 2015Inventors: Rolf ROERS, Haval KHAFFAF, Michael LOOF, Achim SYMANNEK
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Publication number: 20150210035Abstract: The invention relates to a sandwich composite element (100) and a method for producing a sandwich composite element (100) having a first outer layer (10) and a second outer layer (11), wherein a polyurethane foam core body (12) is arranged between the first outer layer (10) and the second outer layer (11). According to the invention, a subjacent outer layer (13, 14) for mechanically stiffening the composite element (100) is arranged between the foam core body (12) and at least one of the outer layers (10, 11).Type: ApplicationFiled: August 23, 2013Publication date: July 30, 2015Applicant: Bayer MaterialScience AGInventors: Marc Rippel, Rolf Roers, Catherine Lövenich, Walter Schindler, Michael Büchele, Lars Pfeiffer
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Patent number: 8980422Abstract: A polyurethane/polyisocyanurate foam is obtainable from the reaction of A) a polyol component comprising A1) an aromatic polyester polyol, A2) a polyether polyol started on a carbohydrate polyol and A3) a polyether polyol started on ethylene glycol, wherein the total hydroxyl number of the polyol component A) is from ?150 mg KOH/g to ?300 mg KOH/g; with B) a polyisocyanate component, wherein the equivalent ratio of NCO groups to the sum of the hydrogen atoms reactive towards NCO groups is from ?110:100 to ?200:100. This foam has improved adhesion properties to facings and is suitable for the production of composite elements without requiring the use of an additional adhesion promoter.Type: GrantFiled: November 9, 2010Date of Patent: March 17, 2015Assignee: Bayer MaterialScience AGInventors: Rolf Roers, Torsten Heinemann, Maria Dolors Mateu
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Publication number: 20150004864Abstract: In order to provide sandwich composite elements (100) having an improved fire protection behavior, the invention relates to a method for continuously producing sandwich composite elements (100) having a lower cover layer (10), an upper cover layer (11), and a polyurethane hard-foam core body (12) introduced between the cover layers (10, 11), wherein a double belt conveyor system (18) having a lower conveyor belt (19) and an upper conveyor belt (20) is provided and wherein the lower cover layer (10) and the upper cover layer (11) continuously run in between the conveyor belts (19, 20), wherein at least one glass-fiber mat (13) continuously runs in between the cover layers (10, 11) and is arranged adjacent to the inside or at least one of the cover layers (10, 11) and wherein a subsequently foaming reaction mixture (14) is applied to at least one inside of the cover Layers (10, 11) and/or to the glass fiber mat (13) in order to form the polyurethane hard-foam core body (12).Type: ApplicationFiled: January 30, 2013Publication date: January 1, 2015Inventors: Rolf Roers, Walter Schindler, Ingo Kellerhof
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Publication number: 20140370267Abstract: The present invention relates to a polyurethane/polyisocyanurate foam with improved dimensional stability. It relates further to the use thereof in the production of metal composite elements, to metal composite elements produced therewith, and to a method for producing metal composite elements.Type: ApplicationFiled: January 30, 2013Publication date: December 18, 2014Applicant: Bayer Intellectual Property GmbHInventors: Rolf Roers, Torsten Hagen, Rene Abels, Inge Tinnefeld, Walter Schindler
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Patent number: 8592623Abstract: Polyester polyols are produced from at least one carboxylic acid hydride and diethylene glycol by a process in which the formation of 1,4-dioxane is suppressed. These polyester polyols are useful for producing polyurethane (PUR) and polyisocyanurate (PIR) foams and metal composite elements containing these PUR or PIR foams.Type: GrantFiled: November 3, 2009Date of Patent: November 26, 2013Assignee: Bayer MaterialScience AGInventors: Rolf Roers, Hartmut Nefzger, Erika Bauer, Johannes Van De Braak, Torsten Heinemann, Jürgen Schloβmacher
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Publication number: 20130183880Abstract: An isocyanate-terminated prepolymer C having an NCO content of from ?26% by mass to ?31.0% by mass is obtainable from the reaction of an isocyanate composition A having a viscosity at 25° C. of from ?60 mPas to ?800 mPas, comprising from ?25% by mass to ?60% by mass MDI and from ?40% by mass to 75% by mass pMDI, wherein the sum of the amounts of those components is ?100% by mass, with a bifunctional polyester ether polyol B having an OH number of ?200 mg(KOH)/g and ?500 mg(KOH)/g, obtained from the reaction of a dicarboxylic acid/dicarboxylic acid derivative with at least one polyol and with an epoxide, wherein the polyester ether polyol B is used in amounts of from ?1.5% by mass to ?6.0% by mass, based on the sum of the masses of A and B. The invention further provides a PUR/PIR polymer produced from the prepolymer C, its use and composite elements based thereon.Type: ApplicationFiled: July 11, 2011Publication date: July 18, 2013Applicant: BAYER INTELLECTUAL PROPERTY GMBHInventors: Hans-Georg Pirkl, Manfred Schmidt, Reinhard Albers, Johannes Braak, Rolf Roers
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Publication number: 20120225279Abstract: A polyurethane/polyisocyanurate foam is obtainable from the reaction of A) a polyol component comprising A1) an aromatic polyester polyol, A2) a polyether polyol started on a carbohydrate polyol and A3) a polyether polyol started on ethylene glycol, wherein the total hydroxyl number of the polyol component A) is from ?150 mg KOH/g to ?300 mg KOH/g; with B) a polyisocyanate component, wherein the equivalent ratio of NCO groups to the sum of the hydrogen atoms reactive towards NCO groups is from ?110:100 to ?200:100. This foam has improved adhesion properties to facings and is suitable for the production of composite elements without requiring the use of an additional adhesion promoter.Type: ApplicationFiled: November 9, 2010Publication date: September 6, 2012Applicant: Bayer Intellectual Property GmbH Creative Campus MonheimInventors: Rolf Roers, Torsten Heinemann, Maria Dolors Mateu
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Publication number: 20120225278Abstract: The invention relates to a process for the production of a foam composite element, comprising the steps of providing a facing, applying adhesion promoter, and applying a foam layer comprising polyurethane and/or polyisocyanurate to the adhesion promoter, characterised in that the adhesion promoter consists of at least one compound selected from the group consisting of polyether polyol (B.1), polymer polyol (B.2), polyurea dispersion (B.3), polyester polyol (B.4) and PIPA polyol (B.5). The invention relates further to the use of at least one compound selected from the group consisting of polyether polyol, polymer polyol and polyurea dispersion as adhesion promoter in the production of foam composite elements, as well as to foam composite elements produced by the process according to the invention.Type: ApplicationFiled: July 23, 2010Publication date: September 6, 2012Applicant: Bayer MaterialSceience AGInventors: Johannes Van De Braak, Rolf Roers, Peter Haas
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Publication number: 20120121887Abstract: The invention relates to a method for preparing a foam composite element, including the steps of preparing a top layer, applying an adhesion promoter layer to the top layer, wherein the adhesion promoter layer includes a modified isocyanate, and applying a foam layer including polyurethane and/or polyisocyanurate to the adhesion promoter layer. On application, the modified isocyanate in the adhesion promoter layer has a content of free isocyanate groups of from ?10% to ?29%. The invention further relates to the use of a modified isocyanate having a content of free isocyanate groups of ?10% to ?29% as an adhesion promoter in the preparation of foam composite elements and foam composite elements obtained by the method according to the invention.Type: ApplicationFiled: May 14, 2010Publication date: May 17, 2012Applicant: Bayer MaterialScience AGInventors: Johannes Van De Braak, Rene Abels, Rolf Roers, Peter Haas
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Publication number: 20110236671Abstract: Polyester polyols are produced from at least one carboxylic acid hydride and diethylene glycol by a process in which the formation of 1,4-dioxane is suppressed. These polyester polyols are useful for producing polyurethane (PUR) and polyisocyanurate (PIR) foams and metal composite elements containing these PUR or PIR foams.Type: ApplicationFiled: November 3, 2009Publication date: September 29, 2011Applicant: BAYER MATERIAL SCIENCE AGInventors: Rolf Roers, Hartmut Nefzger, Erika Bauer, Johannes Van De Braak, Torsten Heinemann, Jürgen Schlossmacher
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Publication number: 20090155520Abstract: The present invention concerns a floor covering, such as a carpet, containing a first textile planar element and a first layer which is at least partially connected to the first textile planar element over their surfaces, wherein the first layer contains viscoelastic polymer foam. The floor covering according to the invention is characterized in that the first textile planar element has a modulus of elasticity of ?0.5 N/mm2 to ?2.5 N/mm2, that in the first layer 1 the viscoelastic polymer foam has a compression load deflection at 40% compression of ?1 kPa to ?10 kPa and that in the first layer the viscoelastic polymer foam has a hysteresis when determining the compression load deflection at 40% compression of ?20% to ?70%. The present invention also relates to a method of manufacturing a floor covering.Type: ApplicationFiled: October 14, 2008Publication date: June 18, 2009Applicant: Bayer MaterialScience AGInventors: Rolf Roers, Sebastien Triouleyre, Sven Meyer-Ahrens, Ralph Schneider, Semka Muratovic, Hans Johann Klunter
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Patent number: 7273656Abstract: The invention provides composite elements containing a thermoplastic polymer layer, adhering to a layer comprising the reaction product of a reaction mixture containing a prepolymer containing isocyanate groups produced by the reaction of at least one isocyanate and one polycarbonate polyalcohol with a functionality of 2 to 3 and a hydroxyl number of about 40 to about 400 mg KOH/g, based on the condensation of carbonates with diols and/or triols with a molecular weight of about 62 to about 3000 g/mol, the prepolymer having an isocyanate group content of about 5 to about 48%, compounds reactive with respect to isocyanates and optionally catalysts blowing agents and/or auxiliary substances and/or additives. The present invention further provides a process for the production the composite elements.Type: GrantFiled: November 10, 2004Date of Patent: September 25, 2007Assignee: Bayer MaterialScience AGInventors: Peter Haas, Rolf Roers, Hartwig Grammes
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Publication number: 20060057395Abstract: The invention provides composite elements containing a thermoplastic polymer layer, adhering to a layer comprising the reaction product of a reaction mixture containing a prepolymer containing isocyanate groups produced by the reaction of at least one isocyanate and one polycarbonate polyalcohol with a functionality of 2 to 3 and a hydroxyl number of about 40 to about 400 mg KOH/g, based on the condensation of carbonates with diols and/or triols with a molecular weight of about 62 to about 3000 g/mol, the prepolymer having an isocyanate group content of about 5 to about 48%, compounds reactive with respect to isocyanates and optionally catalysts blowing agents and/or auxiliary substances and/or additives. The present invention further provides a process for the production the composite elements.Type: ApplicationFiled: November 10, 2004Publication date: March 16, 2006Inventors: Peter Haas, Rolf Roers, Hartwig Grammes
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Publication number: 20050159500Abstract: Flexible polyurethane foams that satisfy the requirements of FMVSS 302 are produced by reacting a polyisocyanate with a polyol component that includes: (1) from 90 to 99 parts by weight of a polyether polyol having an OH value of from 20 to 200 mg KOH/g and functionality of from 2 to 4 and (2) from 1 to 10 parts by weight of a polyether ester polyol having an OH value of from 150 to 450 mg KOH/g and a functionality of from 2 to 3 in the presence of a blowing agent, catalyst and stabilizer. The foams thus produced are useful as cushioning for furniture and automotive applications.Type: ApplicationFiled: January 10, 2005Publication date: July 21, 2005Inventors: Thorsten Dreier, Rolf Roers, Matthaus Gossner, Sven Meyer-Ahrens