Patents by Inventor Tim POHLMANN

Tim POHLMANN 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: 11104754
    Abstract: The present invention relates to compounds according to formula (I) and to heat-curable resin compositions based on polymaleimide resin systems comprising such compounds as co-monomers: wherein R1 signifies an 1-alkenyl- or 2-alkenyl group with 3 to 6 carbon atoms, wherein R2 signifies hydrogen or an alkoxy group with up to 2 carbon atoms, wherein R3 signifies hydrogen or an alkyl group with up to 4 carbon atoms, and wherein R4 signifies hydrogen or an alkyl group with up to 4 carbon atoms. The present invention also relates to crosslinked resins obtainable by curing such compositions. Compounds of the present invention can be used amongst others in fields like structural adhesives, matrix resins for fiber prepregs, moulding compounds, as well as structural and/or electrical composites.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: August 31, 2021
    Assignee: Evonik Operations GmbH
    Inventors: Sergey Evsyukov, Tim Pohlmann, Horst Stenzenberger, Matthijs Ter Wiel
  • Publication number: 20190367652
    Abstract: The present invention relates to compounds according to formula (I) and to heat-curable resin compositions based on polymaleimide resin systems comprising such compounds as co-monomers: wherein R1 signifies an 1-alkenyl- or 2-alkenyl group with 3 to 6 carbon atoms, wherein R2 signifies hydrogen or an alkoxy group with up to 2 carbon atoms, wherein R3 signifies hydrogen or an alkyl group with up to 4 carbon atoms, and wherein R4 signifies hydrogen or an alkyl group with up to 4 carbon atoms. The present invention also relates to crosslinked resins obtainable by curing such compositions. Compounds of the present invention can be used amongst others in fields like structural adhesives, matrix resins for fiber prepregs, moulding compounds, as well as structural and/or electrical composites.
    Type: Application
    Filed: October 27, 2017
    Publication date: December 5, 2019
    Applicant: Evonik Technochemie GmbH
    Inventors: Sergey EVSYUKOV, Tim POHLMANN, Horst STENZENBERGER, Matthijs TER WIEL
  • Patent number: 10308769
    Abstract: A compound according to formula (I) can be part of a heat-curable resin composition based on polymaleimide resin systems comprising such compound as co-monomer: wherein D is an x-functional group; and x is an integer ?2; with the proviso that the x-functional group D is not a polycarbonate with an average molar mass in the range of 15000 g/mol to 150000 g/mol. A crosslinked resin is obtainable by curing such composition. The compounds can be used in structural adhesives, matrix resins for fiber prepregs, moulding compounds, and structural and/or electrical composites.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: June 4, 2019
    Assignee: Evonik Technochemie GmbH
    Inventors: Sergey Evsyukov, Tim Pohlmann, Horst Stenzenberger, Matthijs Ter Wiel
  • Patent number: 10233139
    Abstract: The present invention relates to compounds according to formula (I) and to heat-curable compositions based on polymaleimide resin systems comprising such compounds as co-monomers: wherein R1 is hydrogen or an alkenylphenoxy group, R2 is an alkenylphenoxy group, and R3 is hydrogen or an alkyl group with 1 to 4 carbon atoms. The present invention also relates to cross-linked resins obtainable by curing such compositions. Compounds of the present invention can be used amongst others in fields like structural adhesives, matrix resins for fiber prepregs, molding compounds, as well as structural and/or electrical composites.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: March 19, 2019
    Assignee: Evonik Technochemie GmbH
    Inventors: Sergey Evsyukov, Tim Pohlmann, Horst Stenzenberger, Matthijs Ter Wiel
  • Publication number: 20180201561
    Abstract: The present invention relates to compounds according to formula (I) and to heat-curable compositions based on polymaleimide resin systems comprising such compounds as co-monomers: wherein R1 is hydrogen or an alkenylphenoxy group, R2 is an alkenylphenoxy group, and R3 is hydrogen or an alkyl group with 1 to 4 carbon atoms. The present invention also relates to cross-linked resins obtainable by curing such compositions. Compounds of the present invention can be used amongst others in fields like structural adhesives, matrix resins for fiber prepregs, moulding compounds, as well as structural and/or electrical composites.
    Type: Application
    Filed: September 2, 2016
    Publication date: July 19, 2018
    Applicant: Evonik Technochemie GmbH
    Inventors: Sergey EVSYUKOV, Tim POHLMANN, Horst STENZENBERGER, Matthijs TER WIEL
  • Publication number: 20180030208
    Abstract: A compound according to formula (I) can be part of a heat-curable resin composition based on polymaleimide resin systems comprising such compound as co-monomer: wherein D is an x-functional group; and x is an integer ?2; with the proviso that the x-functional group D is not a polycarbonate with an average molar mass in the range of 15000 g/mol to 150000 g/mol. A crosslinked resin is obtainable by curing such composition. The compounds can be used in structural adhesives, matrix resins for fiber prepregs, moulding compounds, and structural and/or electrical composites.
    Type: Application
    Filed: September 2, 2016
    Publication date: February 1, 2018
    Applicant: Evonik Technochemie GmbH
    Inventors: Sergey EVSYUKOV, Tim POHLMANN, Horst STENZENBERGER, Matthijs TER WIEL
  • Patent number: 9828468
    Abstract: The inventionrelates to a curable mixture comprising: RM % of m-xylylene bismaleimide of formula (I) RP % of a polyimide component, and RC % of a comonomer component. Further, the invention relates to methods for the preparation of the curable mixture, methods for the preparation of a prepolymer, of a crosslinked polymer, and composite materials, in particular of fiber-reinforced composites. In addition, the present invention relates to a prepolymer, a crosslinked polymer and composite materials, in particular fiber-reinforced composites, obtainable by said methods.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: November 28, 2017
    Assignee: EVONIK DEGUSSA GMBH
    Inventors: Sergey Evsyukov, Tim Pohlmann, Horst Stenzenberger
  • Publication number: 20160264735
    Abstract: The invention relates to a curable mixture comprising: RM % of m-xylylene bismaleimide of formula (I) RP % of a polyimide component, and RC % of a comonomer component. Further, the invention relates to methods for the preparation of the curable mixture, methods for the preparation of a prepolymer, of a crosslinked polymer, and composite materials, in particular of fiber-reinforced composites. In addition, the present invention relates to a prepolymer, a crosslinked polymer and composite materials, in particular fiber-reinforced composites, obtainable by said methods.
    Type: Application
    Filed: March 12, 2014
    Publication date: September 15, 2016
    Inventors: Sergey Evsyukov, Tim Pohlmann, Horst Stenzenberger
  • Publication number: 20160053054
    Abstract: The invention relates to a curable mixture comprising: RM % of m-xylylene bismaleimide of formula (I) RP % of a polyimide component, and RC % of a comonomer component. Further, the invention relates to methods for the preparation of the curable mixture, methods for the preparation of a prepolymer, of a crosslinked polymer, and composite materials, in particular of fiber-reinforced composites. In addition, the present invention relates to a prepolymer, a crosslinked polymer and composite materials, in particular fiber-reinforced composites, obtainable by said methods.
    Type: Application
    Filed: March 12, 2014
    Publication date: February 25, 2016
    Inventors: Sergey EVSYUKOV, Tim POHLMANN, Horst STENZENBERGER