Patents by Inventor Meike Niesten
Meike Niesten 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: 20120244201Abstract: The invention relates to a process for the preparation of novel aromatized chewing foams for the oral care sector based on polyurethane-polyureas and aromatizing compositions.Type: ApplicationFiled: June 6, 2012Publication date: September 27, 2012Applicant: Bayer MaterialScience AG Patents & LicensingInventors: Steffen HOFACKER, Meike Niesten, Thorsten Rische, Sebastian Dörr, Thorsten Krämer, Dirk Schwannecke, Gabriele Rohé, Jens Hepperle, Hartwig Kempkes, Claudia Letmathe
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Publication number: 20120157559Abstract: The invention relates to hydrophilic aliphatic polyurethane foams obtained by reacting special prepolymers having a low monomer concentration and hydrophilic polyisocyanates in the presence of water. The absorptive properties make said polyurethane foams particularly suitable for producing wound dressings, cosmetic articles, or incontinence products.Type: ApplicationFiled: August 26, 2010Publication date: June 21, 2012Applicant: Bayer MaterialScience AGInventors: Sebastian Dörr, Meike Niesten
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Publication number: 20110318279Abstract: The invention relates to novel masticatory masses for oral hygiene, made from foamed synthetic polymers, a method for production and use thereof.Type: ApplicationFiled: April 12, 2007Publication date: December 29, 2011Applicant: BAYERMATERIALSECIENCE AGInventors: Meike Niesten, Steffen Hofacker, Thorsten Rische, Sebastian Dörr, Thomas Feller, Thomas Michaelis
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Publication number: 20110184080Abstract: The present invention relates to a process for preparing a hydrophilic aliphatic polyurethane foam which includes providing, curing, and foaming a composition comprising: an isocyanate-functional prepolymer having a weight fraction of low molecular weight aliphatic diisocyanates of below 1.0% by weight based on the prepolymer, obtained by reaction of a low molecular weight aliphatic diisocyanate having a molar mass of 140 to 278 g/mol with a di- to hexafunctional polyalkylene oxide having an OH number of 22.5 to 112 mg KOH/g and an ethylene oxide content of 50 to 100 mol %; optionally a heterocyclic 4-ring or 6-ring oligomer of low molecular weight aliphatic diisocyanates having a molar mass of 140 to 278 g/mol; water; optionally a catalyst; a C8-C22 monocarboxylic acid or its ammonium or alkali metal salt or a C12-C44 dicarboxylic acid or its ammonium or alkali metal salt; optionally a surfactant; and optionally a mono- or polyhydric alcohol.Type: ApplicationFiled: June 26, 2009Publication date: July 28, 2011Applicant: Bayer MaterialScience AGInventors: Jan Schönberger, Burkhard Köhler, Peter Haas, Meike Niesten
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Publication number: 20110091839Abstract: The present invention relates to a strand-like profile body for dental cleaning, wherein the cross-section of the profile body comprises a bottom section (10) and first wall sections (12) and second wall sections (14), which adjoin the bottom section and are arranged opposite of each other, and wherein furthermore the bottom section (10) together with the first and second wall sections (12, 14) forms at least one recess (16, 18) in the profile body for receiving a tooth. The invention further relates to a method for the production thereof and the use thereof for cleaning teeth.Type: ApplicationFiled: June 6, 2009Publication date: April 21, 2011Applicant: Bayer Material Science AGInventors: Meike Niesten, Steffen Hofacker, Thorsten Rische, Sebastian Doerr
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Patent number: 7927704Abstract: The present invention relates to two-component coating systems for producing flexible coatings. The coating systems comprise polyurethane prepolymers with allophanate structures and also amino-functional polyaspartic esters as curing agents.Type: GrantFiled: September 20, 2006Date of Patent: April 19, 2011Assignee: Bayer MaterialScience AGInventors: Michael Mager, Meike Niesten, Malte Homann
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Patent number: 7906606Abstract: Solvent-containing formulations including NCO-containing prepolymers based on TDI isocyanurate polyisocyanates and diphenylmethane diisocyanates where some prepolymers are prepared using a polyetherdiol containing ethylene oxide blocks and having an ethylene oxide content of from 2 to 18% by weight, based on all the alkylene oxide units. The formulation have an NCO content of 1% to 7% by weight, a solids content of 20% to 70% by weight, a monomeric TDI content of less than 0.2% by weight and a monomeric methylenediphenyl diisocyanate content of less than 2% by weight. The solvent-containing formulations can be prepared in organic solvents by reacting at least one of A) a TDI component comprising TDI isocyanurate polyisocyanates and B) an MDI component comprising diphenylmethane diisocyanates with C) a polyetherdiol. The solvent-containing formulations can be used in moisture-curing coating compositions, adhesive bonds and/or seals with substrates.Type: GrantFiled: March 23, 2005Date of Patent: March 15, 2011Assignee: Bayer MaterialScience AGInventors: Meike Niesten, Christoph Irle, Federico Comajuan, Maria Almató Guiteras, Amadeo Vicente
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Publication number: 20110038808Abstract: Flavored chewable foams for the oral care sector are produced from a polyurethane-polyurea and a sensorially active substance (e.g., taste substance and/or aroma substance) by foaming a polyurethane-urea dispersion, drying that dispersion and incorporating the sensorially active substance into the polyurethane-urea dispersion before, during or after foaming of the dispersion.Type: ApplicationFiled: October 27, 2010Publication date: February 17, 2011Applicant: Bayer MaterialScience AGInventors: Steffen Hofacker, Thomas Feller, Thomas Michaelis, Sebastian Doerr, Dirk Schwannecke, Meike Niesten, Thorsten Rische
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Patent number: 7732055Abstract: The present invention relates to two-component compositions containing A) hydroxyl-containing polydimethylsiloxanes having number average molecular weights of 400 to 3000 and an average OH functionality of ?1.8, and containing at least one structural unit of formula I) wherein R is an aliphatic, linear or branched C1 to C20 radical, R1 is a linear or branched hydroxyalkyl radical having 2 to 10 carbon atoms and R2 is either hydrogen or a linear or branched hydroxyalkyl radical having 2 to 10 carbon atoms, B) polyhydroxyl compounds other than A) or polyamines, and C) polyisocyanates. The present invention also relates to coatings, adhesives or sealants obtained from these compositions.Type: GrantFiled: August 30, 2006Date of Patent: June 8, 2010Assignee: Bayer MaterialScience AGInventors: Meike Niesten, Jörg Tillack
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Patent number: 7659358Abstract: A process for preparing polymers containing polyortho ester groups and optionally NCO groups by reacting A) and B) where A) is a polyortho ester containing at least one isocyanate-reactive group prepared by reacting at least one or more acyclic ortho esters with low molecular weight polyols having a functionality of 4-8 and a number-average molecular weight of 80-500 g/mol and B) is least one polyisocyanate. The polymers obtained from the process can be used to produce coatings, adhesive bonds and/or seals. The coating compositions can include one or more of the above-described polymers, optionally polyisocyanates, catalysts, and optionally auxiliaries and additives and can be used to coat substrates.Type: GrantFiled: January 18, 2005Date of Patent: February 9, 2010Assignee: Bayer MaterialScience AGInventors: Hanns-Peter Müller, Meike Niesten, Jörg Schmitz, Holger Mundstock
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Publication number: 20090163648Abstract: The invention relates to aqueous formulations comprising organic binders having a siloxane content and inorganic nanoparticles, a process for the preparation thereof and the use thereof for the preparation of aqueous coating compositions.Type: ApplicationFiled: December 18, 2008Publication date: June 25, 2009Applicant: Bayer MaterialScience AGInventors: Thomas Muenzmay, Alice Muenzmay, Arno Nennemann, Markus Mechtel, Nusret Yuva, Meike Niesten
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Publication number: 20090148501Abstract: The invention relates to a process for the preparation of novel aromatized chewing foams for the oral care sector based on polyurethane-polyureas and aromatizing compositionsType: ApplicationFiled: October 17, 2008Publication date: June 11, 2009Applicant: Bayer MaterialScience AGInventors: Steffen Hofacker, Meike Niesten, Thorsten Rische, Sebastian Dorr, Thorsten Kramer, Dirk Schwannecke, Gabriele Rohe, Jens Hepperle, Hartwig Kempkes, Claudia Letmathe
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Publication number: 20090124727Abstract: The present invention relates to nanoparticle-modified polyisocyanates which have been modified by a special siloxane unit and consequently have improved performance properties and also storage stabilities.Type: ApplicationFiled: November 10, 2008Publication date: May 14, 2009Applicant: Bayer MaterialScience AGInventors: Arno Nennemann, Markus Mechtel, Thomas Klimmasch, Christopher Guertler, Michael Mager, Meike Niesten, Robert Maleika
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Publication number: 20090124766Abstract: Processes for preparing siloxane-modified polyisocyanates, the processes comprising: providing a polyisocyanate reactant; and reacting the polyisocyanate reactant with a hydroxyl-containing siloxane having a number-average molecular weight of 200 to 3000 g/mol and an average OH functionality of greater than or equal to 1.8, and corresponding to the general formula (I): wherein X represents an aliphatic, unbranched or branched C1 to C20 radical optionally containing ether groups; R represents a hydroxyl-functional radical; R1 represents a hydrogen or an optionally heteroatom-containing C1 to C20 hydrocarbon radical; and n is 1 to 40; siloxane-modified polyisocyanates prepared thereby, and uses therefor.Type: ApplicationFiled: November 10, 2008Publication date: May 14, 2009Applicant: Bayer MaterialScience AGInventors: Arno Nennemann, Markus Mechtel, Thomas Klimmasch, Meike Niesten
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Publication number: 20090018224Abstract: The invention relates to the drying of foams by means of microwave radiation, and in particular, where the foams are obtained from aqueous polyurethane dispersions (PU dispersions).Type: ApplicationFiled: July 10, 2008Publication date: January 15, 2009Applicant: Bayer MaterialScience AGInventors: Meike Niesten, Steffen Hofacker, Thorsten Rische, Sebastian Doerr, Thorsten Kraemer
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Publication number: 20080311483Abstract: The present invention provides polyurethane systems which cure by radiation and thermal action with crosslinking, and use thereof for the production of holographic media. The polyurethane compositions of the invention comprise A) polyisocyanates, B) polyols, comprising at least one poly(?-caprolactone)polyester polyol, C) compounds having groups which react on exposure to actinic radiation with ethylenically unsaturated compounds with polymerization (radiation-curing groups), D) optionally free radical stabilizers and E) photoinitiators.Type: ApplicationFiled: April 10, 2008Publication date: December 18, 2008Applicant: Bayer MaterialScience AGInventors: Nicolas Stockel, Friedrich-Karl Bruder, Meike Niesten, Harald Blum, Stephanie Strazisar
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Patent number: 7393465Abstract: A process for preparing hydrophobic polyols that includes reacting A) a mixture having an OH content of from 180 to 300 mg KOH/g, a viscosity at 23° C. of from 5000 to 20 000 mPas and an OH functionality of from 2.8 to 4.5 including from 5 to 20 wt. % of 3-pentadecadienylphenol, from 5 to 10 wt. % of 3-pentadecadienyl-recorcinol and from 1 to 5 wt. % of 2-methyl 3-pentadecadienylrecorcinol; with B) alkylene oxides (AO) with addition of the AO monomers onto the AO-reactive groups of component A); the ratio of the amounts of A) to B) being from 1:9 to 9:1; where the hydrophobic polyols have an OH number of from 140 to 220 mg KOH/g and a viscosity at 23° C. of from 1000 to 4000 mPas. The hydrophobic polyols can be used in polyurethane systems, in coatings, adhesive bonds, sealants or moulding compounds, which can be used to coat substrates.Type: GrantFiled: February 24, 2005Date of Patent: July 1, 2008Assignee: Bayer MaterialScience AGInventors: Meike Niesten, Jack Reese, Joachim Simon, Gerhard Ruttmann
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Publication number: 20070249745Abstract: The invention relates to novel chewable foams which are useful in the oral care sector and which are based on polyurethane-polyureas, to a method for the production of these novel chewable foams, and also to use thereof.Type: ApplicationFiled: April 17, 2007Publication date: October 25, 2007Inventors: Steffen Hofacker, Thorsten Rische, Meike Niesten, Thomas Feller, Thomas Michaelis
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Publication number: 20070238837Abstract: The present invention relates to a process for preparing compounds which contain allophanate groups, free NCO groups and polyortho ester groups by reacting A) one or more aliphatic and/or cycloaliphatic polyisocyanates with B) one or more polyortho esters containing at least one hydroxyl group per molecule to form NCO-functional polyurethanes and then reacting some or all of the urethane groups to form allophanate groups. The present invention relates to compounds obtained by this process and to their use as binders in coating, sealant and adhesive compositions that also contain catalysts and optionally additives.Type: ApplicationFiled: April 10, 2006Publication date: October 11, 2007Inventors: Dieter Mager, Holger Mundstock, Meike Niesten, Jorg Schmitz
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Patent number: 7253252Abstract: The present invention relates to new water-soluble polyaspartic esters and also to their use in aqueous coating compositions.Type: GrantFiled: July 11, 2005Date of Patent: August 7, 2007Assignee: Bayer MaterialScience AGInventors: Burkhard Köhler, Meike Niesten, Joachim Simon, Christian Wamprecht