Patents by Inventor Roland Hinrich STAFF

Roland Hinrich STAFF 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: 11559777
    Abstract: A microencapsulated polyaddition catalyst comprises a capsule core, containing polyaddition catalyst, and an acrylic copolymer capsule shell, the acrylic copolymer comprising copolymerized units of an intermolecular anhydride of an ethylenically unsaturated C3-C12 carboxylic acid. The polyaddition catalyst is selected from acyclic tertiary amines, alicyclic tertiary amines, N-alkylimidazoles, phosphines and organic metal salts. It is suitable for catalysing the reaction of a polyol compound with a polyisocyanate compound. The polyaddition catalyst is released by a chemical stimulus, such as on contact with polyols or water, for example.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: January 24, 2023
    Assignee: Construction Research & Technology GmbH
    Inventors: Heimo Woelfle, Roland Hinrich Staff, Kristina Brandt, Francisco Javier Lopez-Villanueva
  • Publication number: 20220275120
    Abstract: Preparation of low-dusting or dust-free waterdispersible crosslinked polyvinylpyrrolidone (PVPP) granules characterized by extruding a dough consisting of said PVPP and water through a die plate and subsequent drying of the granules.
    Type: Application
    Filed: August 4, 2020
    Publication date: September 1, 2022
    Inventors: Roland Hinrich Staff, Joerg Kress, Andreas Hasse
  • Publication number: 20220217976
    Abstract: Microcapsule comprising a shell and a core, wherein said core comprises a pesticide and a water immiscible solvent and wherein said shell comprises an organic polymer, wherein said microcapsule further comprises a protective colloid of silica particles.
    Type: Application
    Filed: January 31, 2020
    Publication date: July 14, 2022
    Inventors: Roland Hinrich Staff, Joanna Mecfel-Marczewski, Martin Semar, Christian Sowa, John M. Brausch, Gerhard Peter Dohmen, Bernd Dieter Oschmann, Joerg Braun
  • Publication number: 20210388223
    Abstract: The present invention relates to microparticle compositions comprising an organic IR absorbing pigment having a main absorption maximum in the range from 750 to 1100 nm. The invention also relates to a process for producing said microparticle compositions and to their use in a printing ink, in particular in a printing ink, which is suitable for producing a security feature or a security document. The microparticles of the pigment composition contain the organic IR absorbing pigment as solid particles, which are surrounded by or embedded in an aminoplast polymer, which is a polycondensation product of one or more amino compounds and one or more aldehydes. The microparticle based pigment composition is characterized by a volume based particle size distribution, as determined by static light scattering according to ISO 13320:2009 EN, having a D(4,3) value in the range from 1.0 to 15.0 ?m.
    Type: Application
    Filed: October 17, 2019
    Publication date: December 16, 2021
    Inventors: Roland Hinrich STAFF, Yannick FUCHS, Helmut REICHELT, Hans REICHERT, Oliver SEEGER, Korinna DORMANN, Bernd Dieter OSCHMANN
  • Publication number: 20210387156
    Abstract: The present invention relates to processes for producing microparticles having, in their interior, at least one cavity which is connected via pores to the surface of the microparticles and which have been laden with at least one organic active of low molecular weight. The invention especially relates to a process for loading microparticles with at least one organic active of low molecular weight, wherein the active has been embedded in a matrix and/or the pores of the microparticles have been closed by means of a substance applied to the surface of the microparticles. The invention additionally relates to a process for sealing microparticles laden with at least one organic active of low molecular weight. The invention also relates to compositions of microparticles laden with at least one active of low molecular weight and to the use thereof.
    Type: Application
    Filed: October 29, 2019
    Publication date: December 16, 2021
    Inventors: Bernd Dieter OSCHMANN, Kerstin MUELHEIMS, Wolfgang KRAUSE, Patrick LEIBACH, Roland Hinrich STAFF, Dieter FLICK, Lukas MAYR, Stephanie RENZ, Felicitas GUTH, Klaus KAHLE, Stephan HUEFFER, Tobias Maximilian MERKEL, Axel BINDER, Karl KOLTER, Yean Yik GEOERG, Regina VOGELSANG, Antoine Maxime Charles Jos BEZIAU
  • Patent number: 10709645
    Abstract: The present invention relates to microcapsules comprising a capsule core and a capsule shell wherein the capsule shell comprises a core surrounding layer of a polyvinyl alcohol and an adjacent layer of a polyoxazoline, a process of their production and their use.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: July 14, 2020
    Assignees: BASF SE, BASF Grenzach GmbH
    Inventors: Ewelina Burakowska-Meise, Valeria Bem, Roland Hinrich Staff, Brigitte Lindemann, Helmut Witteler
  • Publication number: 20200079958
    Abstract: The present invention relates to a process for the production of a polyurethane reinforced composite including mixing (A) a Polyisocyanate component including di- or Polyisocyanates (a) and (B) a polyol component including compounds having at least two groups reactive toward isocyanates (b), catalyst (c) and optionally further additives, to form a reaction mixture, contacting the reaction mixture with the reinforcing material at temperatures of less than 100° C. and curing the reaction mixture at temperatures of more than 100° C. to form a polyurethane reinforced composite. The catalyst (c) includes microencapsulated polyurethane catalyst which includes a capsule core, containing polyurethane catalyst, and an acrylic copolymer capsule shell. An average particle size D(0,5) of the microcapsules is 1 to 50 ?m. The invention further relates to a polyurethane reinforced composite obtainable by a process according to the invention.
    Type: Application
    Filed: March 7, 2018
    Publication date: March 12, 2020
    Inventors: Roland Hinrich Staff, Julia Goeschel, Li Zhang
  • Publication number: 20200038830
    Abstract: A microencapsulated polyaddition catalyst comprises a capsule core, containing polyaddition catalyst, and an acrylic copolymer capsule shell, the acrylic copolymer comprising copolymerized units of an intermolecular anhydride of an ethylenically unsaturated C3-C12 carboxylic acid. The polyaddition catalyst is selected from acyclic tertiary amines, alicyclic tertiary amines, N-alkylimidazoles, phosphines and organic metal salts. It is suitable for catalysing the reaction of a polyol compound with a polyisocyanate compound. The polyaddition catalyst is released by a chemical stimulus, such as on contact with polyols or water, for example.
    Type: Application
    Filed: March 8, 2018
    Publication date: February 6, 2020
    Inventors: Heimo WOELFLE, Roland Hinrich STAFF, Kristina BRANDT, Francisco Javier LOPEZ-VILLANUEVA
  • Publication number: 20190276376
    Abstract: Capsules comprising benzylpropargylethers for use as nitrification inhibitors. The capsules include a core and a shell and may further include a matrix. When including a core and a shell, the core includes benzylpropargylether compounds and the shell includes a shell material. When including a core, a shell, and a matrix, the matrix includes benzylpropargylether compounds and a matrix material. The disclosure further relates to methods of reducing nitrification using the capsules.
    Type: Application
    Filed: May 15, 2017
    Publication date: September 12, 2019
    Inventors: Karl-Heinrich Schneider, Barbara Nave, Roland Hinrich Staff, Alexander Wissemeier
  • Publication number: 20170360660
    Abstract: The present invention relates to microcapsules comprising a capsule core and a capsule shell wherein the capsule shell comprises a core surrounding layer of a polyvinyl alcohol and an adjacent layer of a polyoxazoline, a process of their production and their use.
    Type: Application
    Filed: December 3, 2015
    Publication date: December 21, 2017
    Inventors: Ewelina BURAKOWSKA-MEISE, Valeria BEM, Roland Hinrich STAFF, Brigitte LINDEMANN, Helmut WITTELER