Patents by Inventor Monika Brandl

Monika Brandl 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).

  • High-latency hardeners for epoxy resins
    Patent number: 9617369
    Abstract: The present invention relates to novel high-latency liquid hardeners for hardening of curable polymer resins, especially epoxy resins, and to epoxy resin compositions comprising liquid hardeners for the production of fiber composite materials.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: April 11, 2017
    Assignee: ALZCHEM AG
    Inventors: Sylvia Strobel, Martin Ebner, Hans-Peter Krimmer, Monika Brandl
  • Alkyl or dialkyl-semicarbazone as a hardener for epoxy resin
    Patent number: 9499684
    Abstract: The invention relates to the use of alkyl or dialkyl-semicarbazone as a hardener for hardening epoxy resin and to a method for controlling the hardening of epoxy resin and epoxy resin compounds.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: November 22, 2016
    Assignee: ALZCHEM AG
    Inventors: Monika Brandl, Martin Ebner, Hans-Peter Krimmer
  • Semicarbazones as accelerators for curing epoxy resins
    Patent number: 9403976
    Abstract: The present invention describes the use in epoxy resin compositions of semicarbazones of the general formula (I) having the meanings stated for the residues R1, R2, R3 and R4. These semicarbazones exhibit elevated latency in epoxy resin compositions and are thus outstandingly suitable as latent curing accelerators for single-component epoxy resin compositions.
    Type: Grant
    Filed: May 18, 2011
    Date of Patent: August 2, 2016
    Assignee: ALZCHEM AG
    Inventors: Martin Hitzler, Monika Brandl, Ansgar Gruber
  • High-latency hardeners for epoxy resins
    Patent number: 9296855
    Abstract: The present invention relates to novel high-latency liquid hardeners for hardening of curable polymer resins, especially epoxy resins, and to epoxy resin compositions comprising liquid hardeners for the production of fiber composite materials.
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: March 29, 2016
    Assignee: ALZCHEM AG
    Inventors: Sylvia Strobel, Martin Ebner, Hans-Peter Krimmer, Monika Brandl
  • High-Latency Hardeners for Epoxy Resins
    Publication number: 20160083580
    Abstract: The present invention relates to novel high-latency liquid hardeners for hardening of curable polymer resins, especially epoxy resins, and to epoxy resin compositions comprising liquid hardeners for the production of fibre composite materials.
    Type: Application
    Filed: December 1, 2015
    Publication date: March 24, 2016
    Applicant: ALZCHEM AG
    Inventors: Sylvia Strobel, MARTIN EBNER, Hans-Peter Krimmer, Monika Brandl
  • Semicarbazones as accelerators for curing epoxy resins
    Publication number: 20160083575
    Abstract: The present invention describes the use in epoxy resin compositions of semicarbazones of the general formula (I) having the meanings stated for the residues R1, R2, R3 and R4. These semicarbazones exhibit elevated latency in epoxy resin compositions and are thus outstandingly suitable as latent curing accelerators for single-component epoxy resin compositions.
    Type: Application
    Filed: November 30, 2015
    Publication date: March 24, 2016
    Applicant: AlzChem AG
    Inventors: Martin Hitzler, Monika Brandl, Ansgar Gruber
  • Use of guanidine derivatives as curing accelerators for epoxy resins
    Patent number: 9238706
    Abstract: The present invention describes guanidine derivatives of the general formula (I) having the stated meanings for the residues R1, R2 and R3 as accelerators for cold-curing epoxy resin compositions. The curing of cold-curing epoxy resin systems may advantageously be accelerated with the assistance of these compounds.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: January 19, 2016
    Assignee: AlzChem AG
    Inventors: Martin Hitzler, Hans-Peter Krimmer, Sylvia Strobel, Monika Brandl
  • ALKYL OR DIALKYL-SEMICARBAZONE AS A HARDENER FOR EPOXY RESIN
    Publication number: 20140308863
    Abstract: The invention relates to the use of alkyl or dialkyl-semicarbazone as a hardener for hardening epoxy resin and to a method for controlling the hardening of epoxy resin and epoxy resin compounds.
    Type: Application
    Filed: November 14, 2012
    Publication date: October 16, 2014
    Applicant: ALZCHEM AG
    Inventors: Monika Brandl, Martin Ebner, Hans-Peter Krimmer
  • HIGH-LATENCY HARDENERS FOR EPOXY RESINS
    Publication number: 20140024741
    Abstract: The present invention relates to novel high-latency liquid hardeners for hardening of curable polymer resins, especially epoxy resins, and to epoxy resin compositions comprising liquid hardeners for the production of fibre composite materials.
    Type: Application
    Filed: February 23, 2012
    Publication date: January 23, 2014
    Applicant: Alzchem AG
    Inventors: Sylvia Strobel, Martin Ebner, Hans-Peter Krimmer, Monika Brandl
  • Semicarbazones as Accelerators for Curing Epoxy Resins
    Publication number: 20130079488
    Abstract: The present invention describes the use in epoxy resin compositions of semicarbazones of the general formula (I) having the meanings stated for the residues R1, R2, R3 and R4. These semicarbazones exhibit elevated latency in epoxy resin compositions and are thus outstandingly suitable as latent curing accelerators for single-component epoxy resin compositions.
    Type: Application
    Filed: May 18, 2011
    Publication date: March 28, 2013
    Applicant: AlzChem AG
    Inventors: Martin Hitzler, Monika Brandl, Ansgar Gruber
  • USE OF GUANIDINE DERIVATIVES AS CURING ACCELERATORS FOR EPOXY RESINS
    Publication number: 20120208925
    Abstract: The present invention describes guanidine derivatives of the general formula (I) having the stated meanings for the residues R1, R2 and R3 as accelerators for cold-curing epoxy resin compositions. The curing of cold-curing epoxy resin systems may advantageously be accelerated with the assistance of these compounds.
    Type: Application
    Filed: November 5, 2010
    Publication date: August 16, 2012
    Inventors: Martin Hitzler, Hans-Peter Krimmer, Sylvia Strobel, Monika Brandl