Patents by Inventor Reinhard Albers
Reinhard Albers 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: 20150183143Abstract: The present invention relates to a method for producing a PUR/PIR foam body, comprising the steps of providing a mold adapted for applying an underpressure to the interior of the mold; introducing a reaction mixture comprising an isocyanate-reactive component A and an isocyanate B into the mold, and applying an underpressure to the interior of the mold, so the underpressure acts on the introduced reaction mixture. The underpressure is applied to the interior of the mold no later than the reaction mixture has started to set in the mold, and the isocyanate index of the reaction mixture is ?300.Type: ApplicationFiled: July 29, 2013Publication date: July 2, 2015Inventors: Reinhard Albers, Patrick Klasen, Stephanie Vogel
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Publication number: 20150133573Abstract: The invention relates to a method for producing foamed molded bodies comprising the steps of A) providing a mold, and B) introducing a foam-forming reaction mixture into the mold under variable pressure of injection, wherein the method is characterized in that the foam-forming reaction mixture has a fiber time of ?20 s to ?60 s.Type: ApplicationFiled: April 26, 2013Publication date: May 14, 2015Inventors: Reinhard Albers, Hans-Guido Wirtz, Michael Loof, Andreas Pielasch
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Publication number: 20150051301Abstract: The present invention relates to a process for producing a rigid polyurethane-polyisocyanurate foam C, comprising the step of reacting (i) an isocyanate-terminated prepolymer B with (ii) an activator component A comprising at least one trimerisation catalyst A1 and at least one blowing agent A3 in a reaction mixture to form a foam, characterised in that—there is used an isocyanate-terminated prepolymer B obtained from a reaction of an isocyanate B1 having a mean isocyanate functionality of from ?2.3 to ?2.9 with a polyol component B2, and—the activator component A comprises water as the blowing agent A3 in an amount of from ?5 wt. % to ?50 wt. %,—the isocyanate index in the reaction mixture is in a range of from ?400 to ?500, and—the isocyanate content of the prepolymer B is in a range of from ?21 wt. % to ?30 wt. %, based on the total mass of the prepolymer B, and—wherein in the reaction of the prepolymer B and the activator component A a conversion contribution to polyisocyanurate of ?75% is achieved.Type: ApplicationFiled: February 5, 2013Publication date: February 19, 2015Applicant: Bayer Intellectual Property GmbHInventors: Stephan Schleiermacher, Patrick Klasen, Reinhard Albers, Stephan Moers, Dirk Steinmeister, Dieter Seidel, Torsten Heinemann, Hans-Detlef Arntz
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Publication number: 20140323605Abstract: The invention relates to stable emulsions for the production of foams based on isocyanate, at least comprising three polyols A1a, A1b and A1c as well as at least one physical blowing agent T, wherein A1a is a polyether polyol obtained by addition of epoxides to starter compounds selected from carbohydrates and di- or higher-functional alcohols, A1b is a polyether polyol started on an aromatic amine, and A1c is a polyester polyol obtained by esterification of a polycarboxylic acid component and a polyalcohol component, wherein the total amount of aromatic dicarboxylic acid derivatives used in the esterification, calculated on the basis of the free aromatic dicarboxylic acids and based on the total mass of polyalcohol component and polycarboxylic acid component, is less than or equal to 48.5% by mass.Type: ApplicationFiled: August 22, 2012Publication date: October 30, 2014Applicant: Bayer Intellectual Property GmbHInventors: Reinhard Albers, Torsten Heinemann, Stephanie Vogel, Hartmut Nefzger, Frank Otto
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Publication number: 20140242313Abstract: A cavity between inner and outer walls of an open-box-shaped mould is filled with a polyurethane reaction mixture, containing an isocyanate and an emulsion of an isocyanate-reactive composition with three polyols and a blowing agent, which is cured to a polyurethane containing polymer. The inner and outer wall are a fixed distance from one another and each wall comprises a bottom and sides. The mixture is fed through an inlet in the bottom of the outer wall. Before filling the cavity, the mould is turned downwards so that the mixture foams upwards, filling the cavity. The three polyols are polyether polyol obtained by adding an epoxy to carbohydrates or difunctional or higher-functional alcohols; polyether polyol obtained by adding an epoxy to an aromatic amine; and polyester polyether polyol obtained by adding an epoxy to the esterification product of an aromatic dicarboxylic acid derivative and a difunctional or higher-functional alcohol.Type: ApplicationFiled: February 20, 2014Publication date: August 28, 2014Applicant: BAYER MATERIALSCIENCE AGInventors: Stephanie VOGEL, Reinhard ALBERS, Michael LOOF, Frank OTTO
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Publication number: 20140234613Abstract: The invention provides a process for producing rigid polyurethane-polyisocyanurate foams using polyols having a high proportion of secondary hydroxyl end groups. The invention further relates to the rigid polyurethane-polyisocyanurate foams thus obtainable and to the use thereof in the production of composite elements from rigid polyurethane-polyisocyanurate foams and suitable outer layers. The invention further provides the composite elements thus obtainable.Type: ApplicationFiled: August 16, 2012Publication date: August 21, 2014Applicant: BAYER INTELLECTUAL PROPERTY GMBHInventors: Hartmut Nefzger, Jörg Hofmann, Klaus Lorenz, Stephanie Vogel, Reinhard Albers, Patrick Klasen
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Publication number: 20140227928Abstract: The invention relates to a composite material made of a layer of inorganic, non-metal material and a sandwich element, and to a method for producing said composite material.Type: ApplicationFiled: August 27, 2012Publication date: August 14, 2014Applicant: Bayer Intellectual Property GmbHInventors: Hubert Ehbing, Reinhard Albers, Bernd Rothe, Hans-Guido Wirtz
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Publication number: 20140213679Abstract: The invention relates to stable emulsions for the production of foams based on isocyanates, comprising at least three polyols A1a, A1b and A1c and at least one physical blowing agent T, wherein A1a is a polyether polyol, obtained by the addition of epoxies to starter compounds selected from carbohydrates and difunctional or higher-functional alcohols, A1b is a polyether polyol started on an aromatic amine and A1c is a polyester polyether polyol, obtained by the addition of epoxies to the esterification product of an aromatic dicarboxylic acid derivative and a difunctional or higher-functional alcohol. The invention further relates to a method for producing foams by reactions of such emulsions with isocyanates and to the foams obtainable in this way and their use for insulating purposes.Type: ApplicationFiled: August 22, 2012Publication date: July 31, 2014Applicant: Bayer Intellectual Property GmbHInventors: Reinhard Albers, Torsten Heinemann, Stephanie Vogel, Thomas Heidelmann, Frank Otto
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Publication number: 20140162006Abstract: The invention relates to a method for producing a water-blown polyurethane/polyisocyanurate rigid foam material that can be sprayed, by reacting a mixture comprising an aromatic polyester polyol, a first, comparatively short-chain aliphatic polyether polyol, a second, comparatively long-chain aliphatic polyether polyol, an isocyanate component, a blowing agent having water at least as a main component, and a catalyst component. The invention further relates to a rigid foam produced according to the method according to the invention, a composite material composed of said rigid foam and a pipe, and to the use of such a composite material for transporting liquid or gaseous media.Type: ApplicationFiled: July 16, 2012Publication date: June 12, 2014Applicant: Bayer Intellectual Property GmbHInventors: Reinhard Albers, Patrick Klasen, Horst-Heinrich Schneider, Stephanie Vogel
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Patent number: 8716515Abstract: The present invention relates to a process for the preparation of polyether ester polyols starting from fatty acid esters and starter compounds having Zerewitinoff-active hydrogen atoms, and to their use in the production of solid or foamed polyurethane materials.Type: GrantFiled: October 15, 2009Date of Patent: May 6, 2014Assignee: Bayer MaterialScience AGInventors: Klaus Lorenz, Reinhard Albers, Frank Otto
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Publication number: 20130289152Abstract: A method for producing foamed mouldings comprises the steps of providing a mould (1) and introducing a foam-forming reaction mixture (6) into the mould (1), wherein the foam-forming reaction mixture (1) is introduced into the mould (1) under constant injection pressure and in a quantity which is variable over time. The introduced quantity of the foam-forming reaction mixture is changed over time by varying the output of a pump motor acting on the reaction mixture.Type: ApplicationFiled: October 28, 2011Publication date: October 31, 2013Applicant: BAYER INTELLECTUAL PROPERTY GMBHInventors: Hans-Guido Wirtz, Frank Grimberg, Reinhard Albers, Andreas Pielasch
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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: 20100099788Abstract: The present invention relates to a process for the preparation of polyether ester polyols starting from fatty acid esters and starter compounds having Zerewitinoff-active hydrogen atoms, and to their use in the production of solid or foamed polyurethane materials.Type: ApplicationFiled: October 15, 2009Publication date: April 22, 2010Applicant: Bayer MaterialScience AGInventors: Klaus Lorenz, Reinhard Albers, Frank Otto
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Publication number: 20090076480Abstract: The invention relates to compositions comprising silicone elastomers and antimicrobially active substances in homogeneous distribution, a process for their production and their use in medical articles.Type: ApplicationFiled: October 22, 2005Publication date: March 19, 2009Applicant: Bayer Business Services GmbHInventors: Heinz Pudleiner, Ralf Dujardin, Reinhard Albers
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Publication number: 20080114086Abstract: The present invention provides a process for the preparation of polyols based on fatty acid esters and starter compounds having Zerewitinoff-active hydrogen atoms and the use thereof for the preparation of polyurethane materials.Type: ApplicationFiled: March 5, 2007Publication date: May 15, 2008Inventors: Klaus Lorenz, Reinhard Albers, Frank Otto, Ulrich Leyrer, Don S. Wardius, Keith J. Headley
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Patent number: 6723333Abstract: The invention provides moulded items made from thermoplastic polyurethanes (TPUs), in particular medical articles such as central venous catheters which contain a homogeneous distribution of antibiotic substances, a process for the preparation thereof and preparation of the active substance-containing TPUs.Type: GrantFiled: September 15, 2000Date of Patent: April 20, 2004Assignee: Bayer AktiengesellschaftInventors: Reinhard Albers, Ralf Dujardin, Heinz Pudleiner, Joachim Simon, Günther Eberz, Wolfgang Kreiss, Christina Krasemann-Sharma
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Patent number: 6605069Abstract: The invention relates to aromatic copolyesters comprising antimicrobially active substances in homogeneous distribution, processes for their preparation and their use in medical articles.Type: GrantFiled: May 7, 2001Date of Patent: August 12, 2003Assignee: Bayer AktiengesellschaftInventors: Reinhard Albers, Ralf Dujardin, Heinz Pudleiner, Joachim Simon, Rita Fröde, Hartwin Hobler
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Patent number: 6455059Abstract: Molding compositions comprising polyether block amide and homogeneously distributed antimicrobially active substances are disclosed. The compositions are suitable for molding a variety of articles, notably medical articles.Type: GrantFiled: May 7, 2001Date of Patent: September 24, 2002Assignee: Bayer AktiengesellschaftInventors: Reinhard Albers, Ralf Dujardin, Heinz Pudleiner, Joachim Simon, Joachim Wagner, Hartwin Hobler