Patents by Inventor Ralf Klawikowski

Ralf Klawikowski 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: 10988492
    Abstract: Crosslinkers based on alkoxysilanes and alkoxysilane mixtures containing an isocyanate group can be used as a starting component in the production of coating compositions or as paint binder component, or can be used with adhesive o sealant binders o binder components having g ups reactive toward alkoxysilane groups.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: April 27, 2021
    Assignee: Evonik Operations GmbH
    Inventors: Wiebke Stache, Emmanouil Spyrou, Iris Brückner, Ralf Klawikowski, Jan Pfingsten, Judith Schoder
  • Patent number: 10633555
    Abstract: A binder that can be used in a paint composition, an adhesive composition, and/or a sealant composition. The binder includes a reaction product formed from an adduct (A) of an isocyanatoalkylalkoxysilane (A1) and an alcohol (A2) with an alkoxysilane-containing Q unit-free alkyl- and/or arylsilicone resin (B).
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: April 28, 2020
    Assignee: Evonik Operations GmbH
    Inventors: Wiebke Stache, Markus Hallack, Annegret Lilienthal, Sina Ballauf, Tina Bauer, Ralf Klawikowski, Thomas Klotzbach
  • Publication number: 20190315778
    Abstract: Crosslinkers based on alkoxysilanes and alkoxysilane mixtures containing an isocyanate group can be used as a starting component in the production of coating compositions or as paint binder component, or can be used with adhesive o sealant binders o binder components having g ups reactive toward alkoxysilane groups.
    Type: Application
    Filed: April 11, 2019
    Publication date: October 17, 2019
    Applicant: Evonik Degussa GmbH
    Inventors: Wiebke Stache, Emmanouil Spyrou, Iris Brückner, Ralf Klawikowski, Jan Pfingsten, Judith Schoder
  • Publication number: 20190048224
    Abstract: A binder that can be used in a paint composition, an adhesive composition, and/or a sealant composition. The binder includes a reaction product formed from an adduct (A) of an isocyanatoalkylalkoxysilane (A1) and an alcohol (A2) with an alkoxysilane-containing Q unit-free alkyl- and/or arylsilicone resin (B).
    Type: Application
    Filed: September 29, 2016
    Publication date: February 14, 2019
    Applicant: EVONIK DEGUSSA GMBH
    Inventors: Wiebke Stache, Markus Hallack, Annegret Lilienthal, Sina Ballauf, Tina Bauer, Ralf Klawikowski, Thomas Klotzbach
  • Patent number: 10093826
    Abstract: The present invention relates to alkoxysilane-functionalized, allophanate-containing coating compositions, to a process for producing them, and to their use. In particular, the alkoxysilane-functionalized, allophanate-containing coating compositions include a) as a binder component, 10-99 wt % of at least one reaction product of i) at least one monourethane i) containing alkoxysilane groups and of the formula 1 Rn(OR1)3-nSi—R2—NH—(C?O)—OR3??formula 1 where R, R1, R2 and R3 are each independently hydrocarbyl radicals having 1-8 carbon atoms, which may be linear, branched or cyclic, or else may be integrated together to form a cyclic system, and n is 0-2, and ii) at least one diisocyanate ii), in a molar ratio of i) to ii) of from 3:1 to 1.5:1, preferably from 2.5:1 to 1.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: October 9, 2018
    Assignee: Evonik Degussa GmbH
    Inventors: Wiebke Stache, Tobias Unkelhäußer, Emmanouil Spyrou, Annegret Lilienthal, Ralf Klawikowski, Sabine Naumann, Bartholomäus Buchczik
  • Publication number: 20170369736
    Abstract: The present invention relates to alkoxysilane-functionalized, allophanate-containing coating compositions, to a process for producing them, and to their use. In particular, the alkoxysilane-functionalized, allophanate-containing coating compositions include a) as a binder component, 10-99 wt % of at least one reaction product of i) at least one monourethane i) containing alkoxysilane groups and of the formula 1 Rn(OR1)3-nSi—R2—NH—(C?O)—OR3??formula 1 where R, R1, R2 and R3 are each independently hydrocarbyl radicals having 1-8 carbon atoms, which may be linear, branched or cyclic, or else may be integrated together to form a cyclic system, and n is 0-2, and ii) at least one diisocyanate ii), in a molar ratio of i) to ii) of from 3:1 to 1.5:1, preferably from 2.5:1 to 1.
    Type: Application
    Filed: June 14, 2017
    Publication date: December 28, 2017
    Inventors: Wiebke Stache, Tobias Unkelhäußer, Emmanouil Spyrou, Annegret Lilienthal, Ralf Klawikowski, Sabine Naumann, Bartholomäus Buchczik