Patents by Inventor Dorothea Staschik

Dorothea Staschik 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).

  • Kit for producing composite semi-finished products comprising reversibly crosslinked polymer emulsions
    Patent number: 10494495
    Abstract: The invention concerns specifically emulsion polymers which are intraparticulately crosslinked via a hetero-Diels-Alder (HDA) mechanism. The crosslinked polymers can then be wholly or partly decrosslinked by thermal processing, for example in the form of a composite matrix, via a retro-Diels-Alder or retro-hetero-Diels-Alder reaction and interparticulately recrosslinked on cooling. This makes it possible to prepare long shelf life prepregs for composites. But it is also possible to thus realize other materials that have thermoset properties at use temperature but thermoplastic processing properties at a higher temperature.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: December 3, 2019
    Assignee: EVONIK DEGUSSA GmbH
    Inventors: Friedrich Georg Schmidt, Stefan Hilf, Florian Hermes, Dorothea Staschik, Thomas Eurich, Rebecca Pieroth
  • KIT FOR PRODUCING COMPOSITE SEMI-FINISHED PRODUCTS COMPRISING REVERSIBLY CROSSLINKED POLYMER EMULSIONS
    Publication number: 20170218149
    Abstract: The invention concerns specifically emulsion polymers which are intraparticulately crosslinked via a hetero-Diels-Alder (HDA) mechanism. The crosslinked polymers can then be wholly or partly decrosslinked by thermal processing, for example in the form of a composite matrix, via a retro-Diels-Alder or retro-hetero-Diels-Alder reaction and interparticulately recrosslinked on cooling. This makes it possible to prepare long shelf life prepregs for composites. But it is also possible to thus realize other materials that have thermoset properties at use temperature but thermoplastic processing properties at a higher temperature.
    Type: Application
    Filed: July 30, 2015
    Publication date: August 3, 2017
    Applicant: EVONIK DEGUSSA GMBH
    Inventors: Friedrich Georg SCHMIDT, Stefan HILF, Florian HERMES, Dorothea STASCHIK, Thomas EURICH, Rebecca PIEROTH
  • Process for preparing AB diblock copolymers with a broadly distributed A block
    Patent number: 8816011
    Abstract: The invention relates to a controlled polymerization process for preparing (meth)acrylate-based AB diblock copolymers with a B block which has a narrow monomodal molecular weight distribution, and an A block which has a broad monomodal molecular weight distribution, and to the use thereof, for example, as a binder in adhesives or sealants.
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: August 26, 2014
    Assignees: Evonik Röhm GmbH, Henkel AG & Co. KGAA
    Inventors: Holger Kautz, Sven Balk, Stephan Fengler, Dorothea Staschik, Christine Miess, Lars Zander, Jens Lueckert, Johann Klein, Thomas Moeller, Volker Erb
  • Process for preparing AB diblock copolymers with a bimodally distributed A block
    Patent number: 8802785
    Abstract: The invention relates to a controlled polymerization process for preparing (meth)acrylate-based AB diblock copolymers with a B block which has a narrow monomodal molecular weight distribution, and an A block which has a broad bimodal molecular weight distribution, and to the use thereof, for example, as a binder in adhesives or sealants.
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: August 12, 2014
    Assignees: Evonik Röhm GmbH, Henkel AG & Co. KGAA
    Inventors: Holger Kautz, Sven Balk, Stephan Fengler, Dorothea Staschik, Christine Miess, Lars Zander, Jens Lueckert, Johann Klein, Thomas Moeller, Volker Erb
  • PROCESS FOR PREPARING AB DIBLOCK COPOLYMERS WITH A BROADLY DISTRIBUTED A BLOCK
    Publication number: 20110281999
    Abstract: The invention relates to a controlled polymerization process for preparing (meth)acrylate-based AB diblock copolymers with a B block which has a narrow monomodal molecular weight distribution, and an A block which has a broad monomodal molecular weight distribution, and to the use thereof, for example, as a binder in adhesives or sealants.
    Type: Application
    Filed: October 6, 2009
    Publication date: November 17, 2011
    Applicants: Henkel AG & Co. KGaA, Evonik Roehm GmbH
    Inventors: Holger Kautz, Sven Balk, Stephan Fengler, Dorothea Staschik, Christine Miess, Lars Zander, Jens Lueckert, Johann Klein, Thomas Moeller, Volker Erb
  • PROCESS FOR PREPARING AB DIBLOCK COPOLYMERS WITH A BIMODALLY DISTRIBUTED A BLOCK
    Publication number: 20110224359
    Abstract: The invention relates to a controlled polymerization process for preparing (meth)acrylate-based AB diblock copolymers with a B block which has a narrow monomodal molecular weight distribution, and an A block which has a broad bimodal molecular weight distribution, and to the use thereof, for example, as a binder in adhesives or sealants.
    Type: Application
    Filed: October 6, 2009
    Publication date: September 15, 2011
    Applicants: Evonik Riehm GmbH, Henkel AG & Co. KGAA
    Inventors: Holger Kautz, Sven Balk, Stephan Fengler, Dorothea Staschik, Christine Miess, Lars Zander, Jens Lückert, Johann Klein, Thomas Möller, Volker Erb
  • BLOCK COPOLYMERS ON THE BASIS OF (METH)ACRYLATE
    Publication number: 20110178246
    Abstract: The invention relates to block copolymers produced by means of controlled polymerization and that have at least one block A or B comprising (meth)acrylate monomers and copolymerizable monomers, and a block P on the basis of functionalized polymers.
    Type: Application
    Filed: January 19, 2011
    Publication date: July 21, 2011
    Inventors: Thomas Moeller, Volker Erb, Uwe Franken, Lars Zander, Hans-Georg Kinzelmann, Holger Kautz, Sven Balk, Dirk Kuppert, Stephan Fengler, Dorothea Staschik, Rebecca Pieroth
  • Method for removing metal ions from polymers or polymer solutions
    Patent number: 7138485
    Abstract: The invention relates to a simple, economical and reliable method for removing catalytic residues from polymer solutions. According to the inventive method, the copper content is reduced to a non-disturbing concentration level.
    Type: Grant
    Filed: June 28, 2003
    Date of Patent: November 21, 2006
    Assignee: Röhm GmbH & Co. KG
    Inventors: Hans Goerlitzer, Dorothea Staschik
  • Method for removing metal ions from polymers or polymer solutions
    Publication number: 20050199549
    Abstract: The invention relates to a simple, economical and reliable method for removing catalytic residues from polymer solutions. According to the inventive method, the copper content is reduced to a non-disturbing concentration level.
    Type: Application
    Filed: June 28, 2003
    Publication date: September 15, 2005
    Inventors: Hans Goerlitzer, Dorothea Staschik