Patents by Inventor Ralph Lunkwitz
Ralph Lunkwitz 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: 20240052168Abstract: The present invention relates to a binder composition comprising a) component A comprising polymer(s) A1 having primary and/or secondary amino groups, wherein polymer(s) A1 has(have) a primary and secondary amine group nitrogen content of at least 1 wt.-% and b) component B comprising component B1 which is 1,3-dihydroxyacetone, glycolaldehyde, glyceraldehyde or any mixture thereof, wherein the polymer(s) A1 has(have) a total weight average molecular weight Mw,total of at least 800 g/mol.Type: ApplicationFiled: December 22, 2021Publication date: February 15, 2024Inventors: Gereon Antonius SOMMER, Guenter SCHERR, Stephan WEINKOETZ, Thomas SERVAY, Jessica Nadine HAMANN, Joaquim Henrique TELES, Ralph LUNKWITZ, David TUERP
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Publication number: 20240052102Abstract: The present invention relates to a binder composition comprising a) component A comprising polymer(s) A1 having primary and/or secondary amino groups wherein polymer(s) A1 has(have) a primary and secondary amine group nitrogen content (NCps) of at least 1 wt.-% and b) component B comprising hydroxyacetone.Type: ApplicationFiled: December 22, 2021Publication date: February 15, 2024Inventors: Gereon Antonius SOMMER, Guenter SCHERR, Stephan WINKOETZ, Jean-Pierre Berkan LINDNER, Dagmar Pascale KUNSMANN-KEITEL, Ralph LUNKWITZ, David TUERP
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Publication number: 20240043616Abstract: The present invention relates to a binder composition comprising a) Component A comprising amino acid polymer(s) A1 and b) Component B comprising component B1 selected from the group consisting of pentoses, hexoses, disaccharides of pentoses and/or hexoses and mixtures thereof, wherein the amino acid polymer(s) A1 has(have) a total weight average molecular weight Mw, total of at least 800 g/mol and at most 10.000 g/mol and wherein the binder composition comprises at least 55 wt.-% amino acid polymer(s) A1 based on the total weight of the amino acid polymer(s) A1 and component B1.Type: ApplicationFiled: December 22, 2021Publication date: February 8, 2024Inventors: Gereon Antonius SOMMER, Stephan WEINKOETZ, David TUERP, Ralph LUNKWITZ, IV, Claus FUEGER, Guenter SCHERR, Jessica Nadine HAMANN, Joequim Henrique TELES, Jean-Pierre Berkan LINDNER, Dagmar Pascale KUNSMANN-KEITEL, Thomas SERVAY
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Publication number: 20240043617Abstract: The present invention relates to a binder composition comprising component A comprising polymer(s) A1 and optionally component B comprising component B1 which is selected from the group consisting of a mono-saccharides, disaccharides, droxyacetone, glycolaldehyde and mixtures thereof, wherein polymer(s) A1 comprises at least 70 wt.-% poly(amino acid)s based on the total weight of the polymers) A1 and has (have) a total weight average molecular weight Mw, total of 800 g/mol to 10.000 g/mol, wherein the binder composition comprises 60 to 100 wt.-% polymer(s) A1, and 0 to 40 wt.-% component B1, based on the total weight of the sum of polymer(s) Al and component B1, wherein the weight amounts of the polymer(s) Al and component B1 are selected such that the total weight of the sum of polymer(s) A1 and component B1 is 100 wt.-%.Type: ApplicationFiled: December 22, 2021Publication date: February 8, 2024Inventors: Gereon Antonius SOMMER, Stephan WEINKOETZ, David TUERP, Guenter SCHERR, Jessica Nadine HAMANN, Joaquim Henrique TELES, Ralph LUNKWITZ, Thomas SERVAY, Jean-Pierre Berkan LINDNER, Dagmar Pascale KUNSMANN-KEITEL
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Patent number: 10876001Abstract: The present invention relates to a novel and improved, batchwise or continuous, preferably continuous, process for producing single-layer or multilayer lignocellulose materials, comprising the process steps of (Ia) producing a mixture M1 and (Ib) optionally one or more mixture(s) M2, (II) scattering mixture M1 and any mixture(s) M2 to give a mat, (III) optionally precompacting the scattered mat and (IV) hot pressing, in that mixture M1 comprises the lignocellulose particles (component LCP-1) and additionally a) 0.005% to 0.5% by weight of organic carboxylic acid, carboxylic anhydride, carbonyl chloride or mixtures thereof (component A) b) 0.Type: GrantFiled: September 13, 2017Date of Patent: December 29, 2020Assignee: BASF SEInventors: Stephan Weinkoetz, Jean-Pierre Berkan Lindner, Ralph Lunkwitz, Claus Fueger
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Publication number: 20200017688Abstract: The present invention relates to a novel and improved, batchwise or continuous, preferably continuous, process for producing single-layer or multilayer lignocellulose materials, comprising the process steps of (Ia) producing a mixture M1 and (Ib) optionally one or more mixture(s) M2, (II) scattering mixture M1 and any mixture(s) M2 to give a mat, (III) optionally precompacting the scattered mat and (IV) hot pressing, in that mixture M1 comprises the lignocellulose particles (component LCP-1) and additionally a) 0.005% to 0.5% by weight of organic carboxylic acid, carboxylic anhydride, carbonyl chloride or mixtures thereof (component A) b) 0.Type: ApplicationFiled: September 13, 2017Publication date: January 16, 2020Inventors: STEPHAN WEINKOETZ, Jean-Pierre Berkan LINDNER, Ralph LUNKWITZ, Claus FUEGER
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Publication number: 20190016008Abstract: The present invention relates to a new and improved method for coating wood-based materials, which comprises treating the surface of a wood-based material with 0.05 to 50 g/m2, preferably 0.1 to 20 g/m2, more preferably 0.3 to 10 g/m2 of a surface-active substance, preferably as 0.1 to 60 wt %, preferably 0.5 to 50 wt %, more preferably 1 to 40 wt %, more particularly 2.5 to 30 wt % solutions, more particularly a solution of a surfactant.Type: ApplicationFiled: July 15, 2016Publication date: January 17, 2019Inventors: RALPH LUNKWITZ, Jens ASSMANN, Michael FINKENAUER
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Patent number: 9266308Abstract: The invention is directed to lignocellulosic materials having a core and two outer layers, containing in the core A) lignocellulose particles; B) expanded plastics particles having a bulk density in the range from 10 to 150 kg/m3, C) one or more binders selected from the group consisting of aminoplast resin, phenoplast resin, and organic isocyanate having at least two isocyanate groups, and D) optionally additives and in the outer layers E) lignocellulose particles, F) one or more binders selected from the group consisting of aminoplast resin, phenol-formaldehyde resin, and organic isocyanate having at least two isocyanate groups, and where the lignocellulose particles of the outer layers E comprise at least 25% by weight of lignocellulosic chips and the expanded plastics particles B are present in nonuniform distribution in the core.Type: GrantFiled: December 21, 2012Date of Patent: February 23, 2016Assignee: BASF SEInventors: Stephan Weinkötz, Michael Schmidt, Michael Finkenauer, Ralph Lunkwitz
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Patent number: 9080086Abstract: The present invention relates to a process for producing melamine-urea-formaldehyde resins with up to 0.9% of melamine by reacting a) urea which comprises from 0 to 10% by weight of one or more compounds A, formaldehyde, and melamine in the presence of a base at a pH of from 7.5 to 11, at a temperature of from 20 to 120° C., and at a pressure of from 0.1 to 10 bar, b) and then carrying out reaction in the presence of an acid which optionally comprises urea with from 0 to 10% by weight of one or more compounds A, at a temperature of from 60 to 180° C., and at a pressure of from 0.1 to 10 bar, and c) and then adding urea which comprises from 0 to 10% by weight of one or more compounds A, which comprises carrying out b) at a pH of from 4 to 5.9.Type: GrantFiled: March 28, 2013Date of Patent: July 14, 2015Assignee: BASF SEInventors: Michael Finkenauer, Konrad Roschmann, Ralph Lunkwitz, Stephan Weinkötz
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Publication number: 20150045500Abstract: The present invention relates to processes for discontinuously or continuously preparing aminoplast solutions by condensation of aminoplast formers with formaldehyde in a serial cascade of at least three stirred tank apparatus A, B, and C, which involves a) in apparatus A, reacting a mixture comprising formaldehyde and urea in a molar ratio of 2.3:1 to 2.9:1 and water at a pH of 6 to 8, set by means of a base, at a temperature of 80 to 85° C., where apparatus A consists of one or more, i.e., one to ten, preferably one to five, more preferably one to three, more particularly one or two stirred tanks in parallel or in series, very preferably of one stirred tank, b) in apparatus B, reacting said mixture at a molar ratio of formaldehyde to urea of 1.9:1 to 2.6:1, where apparatus B consists of one or more stirred tanks, wherein the molar ratio of formaldehyde to urea is lowered, optionally by further addition of urea, in stages to not less than 1.9:1, at a pH of 3.5 to 5.Type: ApplicationFiled: August 5, 2014Publication date: February 12, 2015Inventors: Michael FINKENAUER, Evelyn Fuchs, Ralph Lunkwitz, Oliver Reese, Konrad Roschmann, Michael Schmidt, Martin Reif, Stephan Weinkötz
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Patent number: 8460761Abstract: The present invention relates to a method for the reduction of the formaldehyde emission of wood-base materials by application of nitrogen-containing compounds, wherein (i) a mixture which comprises at least one polyamine and, if appropriate, up to 20% by weight, based on the mixture, of urea is applied to the wood-base material; (ii) polyamine is applied on or in the particle or fiber cake; (iii) polyamine is applied to the coating substrate used for surface finishing and/or (iv) polyamine is applied to the exposed areas; the polyamines having a molecular weight of at least 500 g/mol and at least 6 primary or secondary amino groups.Type: GrantFiled: January 12, 2007Date of Patent: June 11, 2013Assignee: BASF SEInventors: Eva Rüba, Stephan Weinkötz, Michael Schmidt, Michael Finkenauer, Christian Beil, Ralph Lunkwitz
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Publication number: 20110135849Abstract: Multilayered articles comprise (E) optionally at least one decor layer, (F) at least one substrate comprising cellulose fibers, (G) at least one metal-containing layer prepared by a process comprising the steps of (c) printing covering layer (D) with a printing formulation comprising at least one metal powder, (d) providing with at least one item generating or consuming electric current, (e) depositing at least one further metal, (H) optionally at least one covering layer.Type: ApplicationFiled: July 30, 2009Publication date: June 9, 2011Applicant: BASF SEInventors: Juliane Kruesemann, Christian Steinig-Nowakowski, Ralph Lunkwitz, Juergen Kaczun, Margit Pfundstein
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Publication number: 20100190021Abstract: The present invention relates to a method for the reduction of the formaldehyde emission of wood-base materials by application of nitrogen-containing compounds, wherein (i) a mixture which comprises at least one polyamine and, if appropriate, up to 20% by weight, based on the mixture, of urea is applied to the wood-base material; (ii) polyamine is applied on or in the particle or fiber cake; (iii) polyamine is applied to the coating substrate used for surface finishing and/or (iv) polyamine is applied to the exposed areas; the polyamines having a molecular weight of at least 500 g/mol and at least 6 primary or secondary amino groups.Type: ApplicationFiled: January 12, 2007Publication date: July 29, 2010Applicant: BASF SEInventors: Eva Rüba, Stephan Weinkötz, Michael Schmidt, Michael Finkenauer, Christian Beil, Ralph Lunkwitz
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Publication number: 20100175343Abstract: The present invention relates to the use of MDF or HDF for the production of a floor panel which comprises a core of MDF or HDF, a backing and, if appropriate, a protective layer, the decorative layer otherwise usual in the case of laminate floor coverings preferably being dispensed with. Furthermore, the present invention relates to floor panels which are produced with the use according to the invention of MDF or HDF, and floor coverings which comprise the floor panels according to the invention.Type: ApplicationFiled: August 8, 2007Publication date: July 15, 2010Applicant: BASF SEInventors: Juliane Kruesemann, Ralph Lunkwitz
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Publication number: 20080114097Abstract: The invention relates to an aqueous impregnating resin solution containing (A) between 77.5 and 99.8 wt. %, in relation to the impregnating resin solution, of aqueous condensates based on melamine and formaldehyde; (B) between 0.1 and 20 wt. %, in relation to the impregnating resin solution, of at least one specific quaternary ammonium compound; and (C) between 0.1 and 2.5 wt. %, in relation to the impregnating resin solution, of an aqueous hardener solution. The invention also relates to an aqueous impregnating resin solution consisting of constituents (A) and (B), and to an aqueous hardener mixture consisting of constituents (B) and (C). The invention further relates to an impregnating resin film containing fibrous substances containing cellulose and impregnated with the aqueous impregnating resin solution, and to the use of the aqueous impregnating resin solution, or impregnating resin film, for the antistatic finishing of coated materials.Type: ApplicationFiled: October 6, 2005Publication date: May 15, 2008Applicant: BASF AktiengesellschaftInventors: Ralph Lunkwitz, Alain Robert, Jakob Decher, Tilo Horstmann, Martin Reif, Christof Jackh
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Patent number: 7300599Abstract: Fatliquoring agents for the production and/or for the treatment of leather comprising (A) at least one natural lipoid; (B) at least one polymer based on the monomers acrylic acid and/or methacrylic acid; (C) an emulsifier composition containing a C6- to C17-alkanol alkoxylated with up to 12 alkylene oxide units or a mixture of two or more such alkanols and a C12- to C24-fatty alcohol mixture alkoxylated with at least 15 alkylene oxide units.Type: GrantFiled: May 5, 2004Date of Patent: November 27, 2007Assignee: BASF AktiengesellschaftInventors: Ralph Lunkwitz, Andreas Seitz
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Publication number: 20070172687Abstract: The present invention relates to a process for the production of laminated substrates having a three-dimensionally structured surface, wherein a decorative paper which comprises from 5 to 90% by weight, based on the total fiber content, of fibers of synthetic polymers is impregnated with a crosslinkable aminoplast resin, applied to the substrate and three-dimensionally shaped. Furthermore, the invention relates to aminoplast resin sheets or films, and the use of a modified decorative paper for the production of aminoplast resin sheets or films for 3D lamination.Type: ApplicationFiled: May 21, 2005Publication date: July 26, 2007Applicant: BASF AktiengesellschaftInventors: Marta Martin-Portugues, Gunter Scherr, Thomas Damian, Claus Fueger, Ralph Lunkwitz, Jakob Decher, Albert Sester
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Patent number: 7192534Abstract: Agents for the fatliquoring of, in particular, leathers and hides tanned in the absence of chromium comprise A) at least one modified natural oil and B) at least one stabilizer LnR where Ra is H or methyl, Rb is methyl, ethyl or tert-butyl, Rc is methyl, tert-butyl, cyclohexyl or methylcyclohexyl, R is an n-valent C3- to C30-hydrocarbon radical which is unsubstituted or substituted and/or contains hetero atoms and n is an integer from 1 to 10, the stabilizer LnR having altogether at least 20, in particular altogether at least 28, carbon atoms, and, where n is 2, —R— also being —S—, —O—, —N(H)—, —CH2—, —(CH2)2—, —CH(CH3)—, —CH2)3—, —CH(C2H5)— or —C(CH3)2—. The novel fatliquoring agents are used in leather production and/or leather treatment, and leather is produced and/or treated using aqueous dispersions of these fatliquoring agents.Type: GrantFiled: February 20, 2003Date of Patent: March 20, 2007Assignee: BASF AktiengesellschaftInventors: Ralph Lunkwitz, Andreas Seitz, Gunther Pabst
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Publication number: 20070021552Abstract: Fatliquoring agents for the production and/or for the treatment of leather comprising (A) at least one natural lipoid; (B) at least one polymer based on the monomers acrylic acid and/or methacrylic acid; (C) an emulsifier composition containing a C6- to C17-alkanol alkoxylated with up to 12 alkylene oxide units or a mixture of two or more such alkanols and a C12- to C24-fatty alcohol mixture alkoxylated with at least 15 alkylene oxide units.Type: ApplicationFiled: May 5, 2004Publication date: January 25, 2007Inventors: Ralph Lunkwitz, Andreas Seltz
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Publication number: 20060150342Abstract: A fatliquoring agent comprises A) a mixture of modified natural oils containing a1) at least one oxidized sulfited natural oil and a2) at least one oxidized sulfated natural oil, B) an emulsifier mixture containing b1) at least one C6- to C14-alkanol alkoxylated with from 4 to 12 alkylene oxide units, b2) at least one C12- to C24-alkanol alkoxylated with from 15 to 40 alkylene oxide units and b3) at least one C12- to C24-alkanol alkoxylated with from 50 to 100 alkylene oxide units, and C) if required, a linear, cyclic or branched polymer of a dialkylsilanediol, SiR2(OH)2, where R is methyl, ethyl, n-propyl or phenyl, and/or D) if required, a compound of the formula (II) where R1 and R2 are identical or different and, independently of one another, are selected from the group consisting of H, M, saturated linear aliphatic C1- to C18-alkyl and saturated branched aliphatic C3- to C18-alkyl, where at least one of the two radicals R1 and R2?H, M with M=alkali metal or 0.Type: ApplicationFiled: September 11, 2003Publication date: July 13, 2006Applicant: BASF AkiengesellschaftInventors: Ralph Lunkwitz, Andreas Seitz