Patents by Inventor Gabriele Lang-Wittkowski
Gabriele Lang-Wittkowski 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: 20150368409Abstract: The present invention relates to a process for the preparation of a readily water-redispersible polymer powder by spray drying of an aqueous polymer B dispersion, wherein the spray drying of the aqueous polymer B dispersion is effected in the presence of a polymer A, wherein polymer A has a glass transition temperature ?60° C., a weight average molecular weight Mw?1000 and ?25000 g/mol, a polydispersity index ?5 and is composed of ?5 and ?50 wt % of at least one ?,?-monoethylenically un-saturated mono- or dicarboxylic acid and/or anhydride (monomer A1), and ?50 and ?95 wt % of at least one other ethylenically un-saturated compound which is copolymerizable with the monomers A1 (monomer A2), in polymerized form, wherein the monomer amounts A1 and A2 sum up to 100 wt %.Type: ApplicationFiled: March 10, 2014Publication date: December 24, 2015Applicant: BASF SEInventors: Joachim PAKUSCH, Bogdan MORARU, Jan RUDLOFF, Gary DEETER, Sebastian EMMERLING, Joerg NIEBERLE, Thomas GOETZ, Klaus SEIP, Gabriele LANG-WITTKOWSKI, Kristin SCHMIDT
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Patent number: 8304075Abstract: The present invention relates to a coarsely divided microcapsule preparation with particles whose particle sizes are in the range from 200 ?m to 5 cm, comprising microcapsules with a capsule core of latent heat storage material and a thermosetting polymer as capsule wall and one or more polymeric binders whose binder polymer has thermoplastic properties and film-forming properties under processing conditions, where the binder content, calculated as solid, is 1-30% by weight, based on the total weight of the coarsely divided microcapsule preparation.Type: GrantFiled: August 2, 2005Date of Patent: November 6, 2012Assignee: BASF AktiengesellschaftInventors: Gabriele Lang-Wittkowski, Ekkehard Jahns, Marco Schmidt, Michael Senge, Markus Steffen, Karl Kolter
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Patent number: 7892644Abstract: The present invention relates to a microcapsular powder having a latent heat storage material as a capsule core and a capsule wall constructed of from 10% to 100% by weight of one or more C1-C24-alkyl esters of acrylic and/or methacrylic acid (monomers I), from 0% to 80% by weight of a water-insoluble or substantially water-insoluble bi- or polyfunctional monomer (monomers II), and from 0% to 90% by weight of other monomers (monomer III) all based on the total weight of the monomers, having an average particle size in the range of 150-400 ?m and having 80% by weight of particles ?90 ?m in diameter, to a process for its production and to its use in bindered building materials, textiles and dumped beds.Type: GrantFiled: March 3, 2006Date of Patent: February 22, 2011Assignee: BASF AktiengesellschaftInventors: Patrick Amrhein, Albert Spannagel, Hermann Ascherl, Gabriele Lang-Wittkowski
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Patent number: 7575804Abstract: The present invention relates to a coarse-particled microcapsule preparation comprising microencapsulated latent heat accumulators and one or more polymeric binders, the ratio of surface area to volume of the particles obeying the following relationship: Surface ? ? area 2 Volume 3 ? 2.5 , and to processes for its production and its use in heat exchangers and building materials.Type: GrantFiled: January 14, 2006Date of Patent: August 18, 2009Assignee: BASF AktiengesellschaftInventors: Gabriele Lang-Wittkowski, Ekkehard Jahns, Markus Steffen
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Publication number: 20090148575Abstract: The present invention relates to a packaging material in the form of a composite comprising at least one paper or cardboard support applied atop which there are at least one paper coating slip layer, if appropriate a print layer, if appropriate one or more thermoplastic layers and if appropriate one or more further layers, wherein at least one of the applied layers comprises microencapsulated latent heat storage material and the capsule wall of the microencapsulated latent heat storage material is constructed from 10% to 100% of one or more C1-C24-alkyl esters of acrylic by weight acid and/or methacrylic acid (monomers I), 0% to 80% of a difunctional or polyfunctional monomer by weight (monomers II) which is insoluble or sparingly soluble in water, and 0% to 90% of other monomers (monomer III), by weight based in each case on the total weight of the monomers, to a process for producing it, and to its use for packaging foodstuffs.Type: ApplicationFiled: November 15, 2005Publication date: June 11, 2009Applicant: BASF AktiengesellschaftInventors: Gabriele Lang-Wittkowski, Peter Schlichting, Ekkehard Jahns, Norbert Heidinger
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Publication number: 20080318048Abstract: The present invention relates to a microcapsular powder having a latent heat storage material as a capsule core and a capsule wall constructed of from 10% to 100% by weight of one or more C1-C24-alkyl esters of acrylic and/or methacrylic acid (monomers I), from 0% to 80% by weight of a water-insoluble or substantially water-insoluble bi- or polyfunctional monomer (monomers II), and from 0% to 90% by weight of other monomers (monomer III) all based on the total weight of the monomers, having an average particle size in the range of 150-400 ?m and having 80% by weight of particles ?90 ?m in diameter, to a process for its production and to its use in bindered building materials, textiles and dumped beds.Type: ApplicationFiled: March 3, 2006Publication date: December 25, 2008Applicant: BASF AktiengesellschaftInventors: Patrick Amrhein, Albert Spannagel, Hermann Ascherl, Gabriele Lang-Wittkowski
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Publication number: 20080166555Abstract: The present invention relates to a coarse-particled microcapsule preparation comprising microencapsulated latent heat accumulators and one or more polymeric binders, the ratio of surface area to volume of the particles obeying the following relationship: Surface ? ? area 2 Volume 3 ? 2.5 , and to processes for its production and its use in heat exchangers and building materials.Type: ApplicationFiled: January 14, 2006Publication date: July 10, 2008Applicant: BASF AktiengesellschaftInventors: Gabriele Lang-Wittkowski, Ekkehard Jahns, Markus Steffen
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Publication number: 20070248824Abstract: The present invention relates to a coarsely divided microcapsule preparation with particles whose particle sizes are in the range from 200 ?m to 5 cm, comprising microcapsules with a capsule core of latent heat storage material and a thermosetting polymer as capsule wail and one or more polymeric binders whose binder polymer has thermoplastic properties and film-forming properties under processing conditions, where the binder content, calculated as solid, is 1-30% by weights based on the total weight of the coarsely divided microcapsule preparation.Type: ApplicationFiled: August 2, 2005Publication date: October 25, 2007Applicant: BASF AktiengesellschaftInventors: Gabriele Lang-Wittkowski, Ekkehard Jahns, Marco Schmidt, Michael Senge, Markus Steffen, Karl Kolter
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Publication number: 20070240781Abstract: The invention relates to syntactic polyurethanes, obtainable by reacting a polyisocyanate component (a) with a polyol component (b), in the presence of hollow microspheres (c) and encapsulated latent heat stores (d). The invention furthermore relates to the use of the syntactic polyurethanes for insulating offshore pipes, and insulated offshore pipes as such, and other parts and apparatuses used in the offshore sector.Type: ApplicationFiled: May 17, 2005Publication date: October 18, 2007Applicant: BASF AktiengesellschaftInventors: Peter Huntemann, Udo Schilling, Gabriele Lang-Wittkowski, Ekkehard Jahns