Patents by Inventor Hermann Seyffer
Hermann Seyffer 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: 10837141Abstract: The invention relates to a use of a coating layer on a paper substrate for blocking oxygen transfer through the coated paper substrate, wherein the coating layer on the paper substrate is obtainable by a process, which comprises the steps of (a) providing a paper substrate with a surface, (b) applying onto the surface of the provided paper substrate an aqueous coating mass, and (c) drying of the paper substrate with the applied aqueous coating mass to obtain the coated paper substrate, wherein the aqueous coating mass contains an aqueous dispersion of a polymer P, which is obtainable by radically initiated emulsion polymerization of at least 25 parts by weight of a C1-C12 alkyl acrylate or a C1-C12 alkyl methacrylate based on the sum total of the parts by weight of all monomers, which is always 100, in the presence of a first degraded starch.Type: GrantFiled: May 13, 2016Date of Patent: November 17, 2020Assignee: BASF SEInventors: Hermann Seyffer, Carmen-Elena Cimpeanu, Theo Smit, Nico Veling, Juergen Schmidt-Thuemmes, Dirk Lawrenz, Rainer Blum
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Patent number: 10837140Abstract: The invention relates to a use of a coating layer on a paper substrate for blocking oxygen transfer through the coated paper substrate, wherein the coating layer on the paper substrate is obtainable by a process, which comprises the steps of (a) providing a paper substrate with a surface, (b) applying onto the surface of the provided paper substrate an aqueous coating mass, and (c) drying of the paper substrate with the applied aqueous coating mass to obtain the coated paper substrate, wherein the aqueous coating mass contains an aqueous dispersion of a copolymer P, which is obtainable by radically initiated emulsion polymerization of at least 40 parts by weight of styrene and 22 to 49 parts by weight of butadiene and optionally other monomers based on the sum total of the parts by weight of all monomers, which is always 100, in the presence of a first degraded starch.Type: GrantFiled: May 13, 2016Date of Patent: November 17, 2020Assignee: BASF SEInventors: Hermann Seyffer, Carmen-Elena Cimpeanu, Theo Smit, Nico Veling, Juergen Schmidt-Thuemmes, Dirk Lawrenz, Rainer Blum
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Publication number: 20180362689Abstract: A process for preparing an aqueous dispersion of a polymer P (aqueous polymer P dispersion) by free-radically initiated aqueous emulsion polymerization.Type: ApplicationFiled: November 15, 2016Publication date: December 20, 2018Applicant: BASF SEInventors: Lucia JIMENEZ GARCIA, Carmen-Elena CIMPEANU, Marcus SEIBERT, Hermann SEYFFER, Dirk LAWRENZ, Juergen BLAUL
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Publication number: 20180142416Abstract: The invention relates to a use of a coating layer on a paper substrate for blocking oxygen transfer through the coated paper substrate, wherein the coating layer on the paper substrate is obtainable by a process, which comprises the steps of (a) providing a paper substrate with a surface, (b) applying onto the surface of the provided paper substrate an aqueous coating mass, and (c) drying of the paper substrate with the applied aqueous coating mass to obtain the coated paper substrate, wherein the aqueous coating mass contains an aqueous dispersion of a polymer P, which is obtainable by radically initiated emulsion polymerization of at least 25 parts by weight of a C1-C12 alkyl acrylate or a C1-C12 alkyl methacrylate based on the sum total of the parts by weight of all monomers, which is always 100, in the presence of a first degraded starch.Type: ApplicationFiled: May 13, 2016Publication date: May 24, 2018Inventors: Hermann SEYFFER, Carmen-Elena CIMPEANU, Theo SMIT, Nico VELING, Juergen SCHMIDT-THUEMMES, Dirk LAWRENZ, Rainer BLUM
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Publication number: 20180135250Abstract: The invention relates to a use of a coating layer on a paper substrate for blocking oxygen transfer through the coated paper substrate, wherein the coating layer on the paper substrate is obtainable by a process, which comprises the steps of (a) providing a paper substrate with a surface, (b) applying onto the surface of the provided paper substrate an aqueous coating mass, and (c) drying of the paper substrate with the applied aqueous coating mass to obtain the coated paper substrate, wherein the aqueous coating mass contains an aqueous dispersion of a copolymer P, which is obtainable by radically initiated emulsion polymerization of at least 40 parts by weight of styrene and 22 to 49 parts by weight of butadiene and optionally other monomers based on the sum total of the parts by weight of all monomers, which is always 100, in the presence of a first degraded starch.Type: ApplicationFiled: May 13, 2016Publication date: May 17, 2018Inventors: Hermann SEYFFER, Carmen-Elena CIMPEANU, Theo SMIT, Nico VELING, Juergen SCHMIDT-THUEMMES, Dirk LAWRENZ, Rainer BLUM
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Patent number: 9950502Abstract: Described is paper or cardboard packaging produced from mineral oil contaminated, (e.g., recycled) paper, wherein the packaging includes a barrier layer obtainable by applying an aqueous polymer dispersion comprising a copolymer obtainable by emulsion polymerization of C1-C4 alkyl (meth)acrylates, acid monomers, e.g., acrylic acid or methacrylic acid, 0-20 wt % of acrylonitrile and 0 to 10 wt % of further monomers in an aqueous medium in the presence of a carbohydrate compound, preferably in the form of a degraded starch, wherein the glass transition temperature of the copolymer is in the range from +10 to +45° C. The barrier layer may be situated on one of the surfaces of the packaging or form one of multiple layers of a multilayered packaging coating or be situated as a coating on one side of an inner bag situated within the packaging.Type: GrantFiled: December 3, 2012Date of Patent: April 24, 2018Assignee: BASF SEInventors: Hermann Seyffer, Carmen-Elena Cimpeanu, Heiko Diehl, Darijo Mijolovic, Andre Van Meer, Jan Van Delft, Christof Van Sluijs
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Patent number: 9328247Abstract: A paper coating slip additive obtainable by free-radical polymerization, its preparation and its use in paper coating compositions are described. The additive is formed from (a) acid monomers selected from ethylenically unsaturated C3 to C8 carboxylic acids, (b) associative monomers of the general formula H2C?CR1—COO-(EO)n—(PO)m—R2 where R1 is hydrogen or methyl, n is at least two, m is from zero to 50, EO is an ethylene oxide group, PO is a propylene oxide group and R2 is a C8-C30 alkyl group or a C8-C30 alkaryl group, and (c) nonionic copolymerizable monomers other than a) and b), wherein said additive has a weight average molecular weight of below 200 000 and wherein tert-dodecyl mercaptan is used as chain transfer agent.Type: GrantFiled: November 7, 2012Date of Patent: May 3, 2016Assignee: BASF SEInventors: Hermann Seyffer, Carmen-Elena Cimpeanu, Anja Song, Thomas Steinmacher, Joerg Claussen, Philipp Zacharias, Vijay Immanuel Raman, Petra Schoecker
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Publication number: 20150274350Abstract: Described is paper or cardboard packaging produced from mineral oil contaminated, (e.g., recycled) paper, wherein the packaging includes a barrier layer obtainable by applying an aqueous polymer dispersion comprising a copolymer obtainable by emulsion polymerization of C1-C4 alkyl (meth)acrylates, acid monomers, e.g., acrylic acid or methacrylic acid, 0-20 wt % of acrylonitrile and 0 to 10 wt % of further monomers in an aqueous medium in the presence of a carbohydrate compound, preferably in the form of a degraded starch, wherein the glass transition temperature of the copolymer is in the range from +10 to +45° C. The barrier layer may be situated on one of the surfaces of the packaging or form one of multiple layers of a multilayered packaging coating or be situated as a coating on one side of an inner bag situated within the packaging.Type: ApplicationFiled: December 3, 2012Publication date: October 1, 2015Applicant: BASF SEInventors: Hermann Seyffer, Carmen Elena Cimpeanu, Heiko Diehl, Darijo Mijolovic, Andre Van Meer, Jan Van Delft, Christof Van Sluijs
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Patent number: 9034444Abstract: Paper or cardboard packaging produced from recycled paper contaminated by mineral oil, where the packaging includes a barrier layer obtained by applying an aqueous polymeric dispersion containing a mixture of at least two polymers A and B. Polymer A is obtained by emulsion polymerization of C1-C4 alkyl(meth)acrylates, acid monomers, e.g., acrylic acid or methacrylic acid, 0-20 wt % of acrylonitrile and 0-10 wt % of further monomers, where the glass transition temperature of copolymer A is greater than +45° C. and the glass transition temperature of polymer B is less than +10° C. The mean value calculated from the glass transition temperatures of the individual polymers is +10 to +45° C. The barrier layer may be situated on one of the surfaces of the packaging or form one of multiple layers of a multilayered packaging coating or be situated as a coating on one side of an inner bag situated within the packaging.Type: GrantFiled: May 30, 2012Date of Patent: May 19, 2015Assignee: BASF SEInventors: Hermann Seyffer, Carmen-Elena Cimpeanu, Heiko Diehl
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Patent number: 9023116Abstract: As associative thickener obtainable by free radical polymerization, the preparation thereof and the use thereof in paper coating slips are described. The associative thickener is formed from (a) acid monomers selected from ethylenically unsaturated C3- to C8-carboxylic acids, (b) associative monomers of the general formula H2C?CR1—COO-(EO)n—(PO)m—R2, in which R1 is hydrogen or methyl, n is a number of at least two, m is a number from zero to 50, EO is an ethylene oxide group, PO is a propylene oxide group and R2 is a C8-C30-alkyl group or a C8-C30-alkaryl group, and (c) nonionic, copolymerizable monomers differing from a) and b), the reaction product having been reacted, after the polymerization, with initiators forming nonionic radicals.Type: GrantFiled: February 1, 2011Date of Patent: May 5, 2015Assignee: BASF SEInventors: Philipp Zacharias, Hermann Seyffer, Ilshat Gubaydullin, Harutyun Hanciogullari, Marc Bothe
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Patent number: 8980437Abstract: The use of polyelectrolyte complexes is described, for providing an oxygen barrier to packaging materials made of polymer foils. Polymeric components of the polyelectrolyte complex are applied in polymerized form to the polymer foil. The polymer foil is either coated with an aqueous dispersion comprising a dispersed polyelectrolyte complex previously produced by water-in-water emulsion polymerization, or is coated with a composition comprising a polyelectrolyte complex produced from anionic polymer and from cationic surfactant, or the polymer foil is coated with at least three alternating layers, where respectively one of two adjacent layers comprises an anionic polyelectrolyte component and the other of two adjacent layers comprises a cationic polyelectrolyte component, and polyelectrolyte complexes form at the opposite, adjacent interfaces of the alternating layers.Type: GrantFiled: August 17, 2010Date of Patent: March 17, 2015Assignee: BASF SEInventors: Carmen-Elena Cimpeanu, Thomas Breiner, Dieter Urban, Karl-Heinz Schumacher, Volker Schaedler, Heiko Diehl, Hermann Seyffer
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Patent number: 8859106Abstract: A multilayered composite or coated substrate, comprising compounds of which at least 40% by weight are composed of alpha-amino acids linked via peptide bonds as adhesion promoters between at least two adjacent layers of the composite or between the coating and the substrate.Type: GrantFiled: March 28, 2006Date of Patent: October 14, 2014Assignee: BASF SEInventors: Hermann Seyffer, Karl-Heinz Schumacher, Hans-Georg Lemaire, Ulf Baus, Thomas Subkowski, Marvin Karos, Claus Bollschweiler, Thomas Heidenfelder
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Publication number: 20140302335Abstract: A paper coating slip additive obtainable by free-radical polymerization, its preparation and its use in paper coating compositions are described. The additive is formed from (a) acid monomers selected from ethylenically unsaturated C3 to C8 carboxylic acids, (b) associative monomers of the general formula H2C?CR1—COO-(EO)n—(PO)m—R2 where R1 is hydrogen or methyl, n is at least two, m is from zero to 50, EO is an ethylene oxide group, PO is a propylene oxide group and R 2 is a C8-C30 alkyl group or a C8-C30 alkaryl group, and (c) nonionic copolymerizable monomers other than a) and b), wherein said additive has a weight average molecular weight of below 200 000 and wherein tert-dodecyl mercaptan is used as chain transfer agent.Type: ApplicationFiled: November 7, 2012Publication date: October 9, 2014Applicant: BASF SEInventors: Hermann Seyffer, Carmen-Elena Cimpeanu, Anja Song, Thomas Steinmacher, Joerg Claussen, Philipp Zacharias, Vijay Raman, Petra Schoecker
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Patent number: 8771812Abstract: Described is paper or cardboard packaging produced from mineral oil contaminated, recycled paper, wherein the packaging includes a barrier layer obtainable by applying an aqueous polymeric dispersion comprising a copolymer obtainable by emulsion polymerization of C1-C4 alkyl(meth)acrylates, acid monomers, e.g., acrylic acid or methacrylic acid, 0-20 wt % of acrylonitrile and 0 to 10 wt % of further monomers, wherein the glass transition temperature of the copolymer is in the range from +10 to +45° C. The barrier layer may be situated on one of the surfaces of the packaging or form one of multiple layers of a multilayered packaging coating or be situated as a coating on one side of an inner bag situated within the packaging.Type: GrantFiled: May 29, 2012Date of Patent: July 8, 2014Assignee: BASF SEInventors: Hermann Seyffer, Carmen-Elena Cimpeanu, Ines Pietsch, Axel Weiss, Peter Preishuber-Pfluegl, Heiko Diehl, Marc Bothe, Florian Buesch
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Patent number: 8747955Abstract: A description is given of a method of producing packaging, the packaging surface being coated with a polyelectrolyte complex, and the polyelectrolyte complex being composed of at least one first polymer and at least one second polymer, the first polymer being an anionic polymer and the second polymer being a cationic polymer. The packaging is distinguished by good fat barrier properties.Type: GrantFiled: August 13, 2009Date of Patent: June 10, 2014Assignee: BASF SEInventors: Carmen-Elena Cimpeanu, Thomas Breiner, Dieter Urban, Hermann Seyffer, Volker Schaedler, Robert Feuerhake, Soumyajit Roy, Michel Awkal
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Patent number: 8637160Abstract: Described are aqueous polymer dispersions and methods of making them. The polymer dispersions are obtainable by free-radically initiated emulsion polymerization of 19.9 to 80 parts by weight of vinylaromatic compounds, 19.9 to 80 parts by weight of acrylate monomers selected from C1-C10 alkyl acrylates and C1-C10 alkyl methacrylates, 0.1 to 10 parts by weight of ethylenically unsaturated acids, and 0 to 20 parts by weight of other ethylenically unsaturated monomers, wherein the emulsion polymerization is effected in an aqueous medium in the presence of free-radical initiators, seed latex and also at least one carbohydrate compound in the form of a degraded starch. The polymer dispersions are particularly useful in the manufacture of paper coating slips.Type: GrantFiled: June 10, 2011Date of Patent: January 28, 2014Assignee: BASF SEInventors: Juergen Schmidt-Thuemmes, Elitsa Evstatieva, Aurelie Morel, Dirk Lawrenz, Hermann Seyffer
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Patent number: 8604101Abstract: The present invention relates to a process for producing aqueous dispersions of thermoplastic polymers which have a plurality of ester groups and/or carbonate groups in the main polymer chain and which have an acid number of less than 5 mg KOH/g, in particular at most 3 mg KOH/g, and which have a zero-shear viscosity ?0 (180° C.) of at least 60 Pa·s at 180° C. The invention also relates to the polymer dispersions obtainable by said process, and to the use thereof.Type: GrantFiled: March 24, 2011Date of Patent: December 10, 2013Assignee: BASF SEInventors: Liqun Ren, Gimmy Alex Fernandez Ramirez, Motonori Yamamoto, Hermann Seyffer, Gabriel Skupin
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Publication number: 20130101865Abstract: The present invention relates to the use of an aqueous dispersion of at least one biodegradable polyester in the form of a coating for improving the barrier properties of packaging materials made of paper or paperboard, in particular of packaging materials made of recycled paper or paperboard, with respect to mineral oils. The present invention also relates to a process for producing barrier coatings on paper or paperboard, in particular on recycled paper or paperboard.Type: ApplicationFiled: September 20, 2012Publication date: April 25, 2013Applicant: BASF SEInventors: Liqun Ren, Gimmy Alex Fernandez Ramirez, Hermann Seyffer, Gabriel Skupin
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Publication number: 20120308749Abstract: Paper or cardboard packaging produced from recycled paper contaminated by mineral oil, where the packaging includes a barrier layer obtained by applying an aqueous polymeric dispersion containing a mixture of at least two polymers A and B. Polymer A is obtained by emulsion polymerization of C1-C4 alkyl(meth)acrylates, acid monomers, e.g., acrylic acid or methacrylic acid, 0-20 wt % of acrylonitrile and 0-10 wt % of further monomers, where the glass transition temperature of copolymer A is greater than +45° C. and the glass transition temperature of polymer B is less than +10° C. The mean value calculated from the glass transition temperatures of the individual polymers is +10 to +45° C. The barrier layer may be situated on one of the surfaces of the packaging or form one of multiple layers of a multilayered packaging coating or be situated as a coating on one side of an inner bag situated within the packaging.Type: ApplicationFiled: May 30, 2012Publication date: December 6, 2012Applicant: BASF SEInventors: Hermann Seyffer, Carmen-Elena Cimpeanu, Heiko Diehl
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Publication number: 20120305436Abstract: Described is paper or cardboard packaging produced from mineral oil contaminated, recycled paper, wherein the packaging includes a barrier layer obtainable by applying an aqueous polymeric dispersion comprising a copolymer obtainable by emulsion polymerization of C1-C4 alkyl (meth)acrylates, acid monomers, e.g., acrylic acid or methacrylic acid, 0-20 wt % of acrylonitrile and 0 to 10 wt % of further monomers, wherein the glass transition temperature of the copolymer is in the range from +10 to +45° C. The barrier layer may be situated on one of the surfaces of the packaging or form one of multiple layers of a multilayered packaging coating or be situated as a coating on one side of an inner bag situated within the packaging.Type: ApplicationFiled: May 29, 2012Publication date: December 6, 2012Applicant: BASF SEInventors: Hermann SEYFFER, Carmen-Elena Cimpeanu, Ines Pietsch, Axel Weiss, Peter Preishuber-Pflügl, Heiko Diehl, Marc Bothe, Florian Büsch