Patents by Inventor Hildegard Stein

Hildegard Stein 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).

  • Patent number: 8992708
    Abstract: Described is the use of synthetic adhesives in the manufacture of corrugated fiberboard at relatively low temperatures and high lineal speeds. The corrugated fiberboard includes a corrugated sheet of paper and a flat linerboard and the corrugation of the corrugated sheet of paper is produced at paper temperatures below 95° C. and at a lineal speed above 150 m/min. The production of the corrugation of a corrugated sheet of paper is immediately followed by a continuous operation in which a preferably unheated corrugated board adhesive is applied and the corrugated sheet of paper is adhered to at least one first linerboard. The corrugated board adhesive used is an aqueous adhesive dispersion based on at least one synthetic, dispersed polymer having preferably more than 40% by weight solids content, selected from acrylate copolymers, copolymers of vinylaromatics and conjugated aliphatic dienes and vinyl acetate-alkylene copolymers, wherein the glass transition temperatures of the polymers are above 20° C.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: March 31, 2015
    Assignee: BASF SE
    Inventors: Karl-Heinz Schumacher, Gledison Fonseca, Rabie Al-Hellani, Wolfgang Gaschler, Ellen Krüger, Andrea Herold, Hildegard Stein, Oliver Hartz, Hubertus Kröner
  • Publication number: 20110247746
    Abstract: Described is the use of synthetic adhesives in the manufacture of corrugated fiberboard at relatively low temperatures and high lineal speeds. The corrugated fiberboard includes a corrugated sheet of paper and a flat linerboard and the corrugation of the corrugated sheet of paper is produced at paper temperatures below 95° C. and at a lineal speed above 150 m/min. The production of the corrugation of a corrugated sheet of paper is immediately followed by a continuous operation in which a preferably unheated corrugated board adhesive is applied and the corrugated sheet of paper is adhered to at least one first linerboard. The corrugated board adhesive used is an aqueous adhesive dispersion based on at least one synthetic, dispersed polymer having preferably more than 40% by weight solids content, selected from acrylate copolymers, copolymers of vinylaromatics and conjugated aliphatic dienes and vinyl acetate-alkylene copolymers, wherein the glass transition temperatures of the polymers are above 20° C.
    Type: Application
    Filed: April 8, 2011
    Publication date: October 13, 2011
    Applicant: BASF SE
    Inventors: Karl-Heinz SCHUMACHER, Gledison Fonseca, Rabie Al-Hellani, Wolfgang Gaschler, Ellen Krüger, Andrea Herold, Hildegard Stein, Oliver Hartz, Hubertus Kröner
  • Publication number: 20100236736
    Abstract: Finely divided, starch-containing polymer dispersions which are obtainable by free radical emulsion copolymerization of (a) from 25 to 50% by weight of at least one optionally substituted styrene, methyl methacrylate, acrylonitrile and/or methacrylonitrile, (b) from 1 to 49% by weight of at least one C1-C4-alkyl acrylate and/or one C2-C4-alkyl methacrylate, (c) from 1 to 49% by weight of at least one C5-C22-alkyl acrylate and/or one C5-C22-alkyl methacrylate and (d) from 0 to 10% by weight of at least one other ethylenically unsaturated copolymerizable monomer and (e) from 15 to 40% by weight of a degradable starch which has a molar mass Mw of from 1000 to 65 000 the sum (a)+(b)+(c)+(d)+(e) being 100% and being based on the total solids content, in the presence of redox initiators and at least 0.
    Type: Application
    Filed: June 23, 2006
    Publication date: September 23, 2010
    Applicant: BASF Aktiengesellschaft
    Inventors: Andreas Brockmeyer, Hildegard Stein, Roland Ettl
  • Publication number: 20100133280
    Abstract: The present invention relates to a gas pressure vessel having a prescribed maximum filling pressure for the uptake, storage and release of a gas, which comprises the gas and a mixture comprising, in each case based on the total weight of the mixture, a) from 2 to 60% by weight of a latent heat storage component A and b) from 40 to 98% by weight of a framework component B, wherein the component A comprises at least one microencapsulated latent heat storage material and the component B comprises at least one porous metal organic framework comprising at least one at least bidentate organic compound coordinated to at least one metal ion and the at least one porous metal framework can adsorptively store at least part of the gas. The invention furthermore relates to a process for filling a gas pressure vessel with the abovementioned mixture for the uptake, storage and release of a gas.
    Type: Application
    Filed: April 1, 2008
    Publication date: June 3, 2010
    Applicant: BASF SE
    Inventors: Hildegard Stein, Joerg Pastre, Markus Schubert, Christoph Kiener
  • Publication number: 20100126344
    Abstract: The present invention relates to mixtures comprising, in each case based on the total weight of the mixture, a) from 2 to 60% by weight of a latent heat storage component A and b) from 40 to 98% by weight of a framework component B, wherein the component A comprises at least one microencapsulated latent heat storage material and the component B comprises at least one porous metal organic framework comprising at least one at least bidentate organic compound coordinated to at least one metal ion. The present invention further relates to the use of such mixtures, in particular in processes for separating substances from a mixture of substances.
    Type: Application
    Filed: April 1, 2008
    Publication date: May 27, 2010
    Applicant: BASF SE
    Inventors: Hildegard Stein, Joerg Pastre, Markus Schubert, Christoph Kiener
  • Publication number: 20090258204
    Abstract: A process for printing on substrates, wherein the substrates are pretreated with a composition which comprises a polymer obtainable by free radical polymerization of ethylenically unsaturated compounds (monomers) (referred to below as polymer for short), and at least 40% by weight of the monomers are olefins.
    Type: Application
    Filed: May 16, 2007
    Publication date: October 15, 2009
    Applicant: BASF SE
    Inventors: Hildegard Stein, Roland Ettl, Thomas Pfeiffer
  • Publication number: 20090162624
    Abstract: A process for printing on substrates, wherein the substrates are pretreated with a composition which comprises a polymer obtainable by free radical polymerization of ethylenically unsaturated compounds (monomers) (referred to below as polymer for short), and at least 1% by weight of the monomers are monomers having two carboxyl groups (dicarboxylic acid) or a dicarboxylic anhydride group (summarized below as anhydride monomer for short).
    Type: Application
    Filed: May 16, 2007
    Publication date: June 25, 2009
    Applicant: BASF SE
    Inventors: Hildegard Stein, Roland Ettl, Hubertus Peter Bell
  • Publication number: 20090139675
    Abstract: Finely divided, starch-containing polymer dispersions obtainable by emulsion copolymerization, with redox initiators, of ethylenically unsaturated monomers from the group consisting of (a) from 45 to 55% by weight of at least one optionally substituted styrene, methyl methacrylate, acrylonitrile and/or methacrylonitrile, (b) from 15 to 29% by weight of at least one C1-C12-alkyl acrylate and/or one C2-C12-alkyl methacrylate and (c) from 0 to 10% by weight of at least one other ethylenically unsaturated copolymerizable monomer in an aqueous medium in the presence of (d) from 15 to 35% by weight of a degraded cationized starch which has a molar mass Mw of from 1000 to 65 000, the sum (a)+(b)+(c)+(d) being 100% and being based on the total solids content, processes for the preparation of such polymer dispersions by emulsion polymerization of the monomers (a), (b) and (c) in an aqueous medium with redox initiators in the presence of (d) cationic starch, and use of the starch-containing polymer dispersions as size
    Type: Application
    Filed: June 23, 2006
    Publication date: June 4, 2009
    Applicant: BASF Aktiengesellschaft
    Inventors: Hildegard Stein, Roland Ettl
  • Publication number: 20090061171
    Abstract: Process for printing on substrates, wherein the substrates are pre-treated with a composition which comprises a polyurethane, polyureaurethane or polyurea or a mixture thereof.
    Type: Application
    Filed: March 13, 2007
    Publication date: March 5, 2009
    Applicant: BASF SE
    Inventors: Hildegard Stein, Roland Ettl, Bernd Bruchmann