Patents by Inventor Sylvia Strobel

Sylvia Strobel 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
  • Curing agents for epoxy resins
    Patent number: 9499653
    Abstract: The present invention relates to new mixtures containing cyanamide and a urea derivative, to liquid curing agents for curing polymer resins, in particular epoxy resins, and to epoxy resin compositions comprising liquid curing agents for producing fibre composite materials.
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: November 22, 2016
    Assignee: ALZCHEM AG
    Inventors: Sylvia Strobel, Martin Ebner, Hans-Peter Krimmer, Michaela Huber
  • Liquid hardeners for hardening epoxide resins (I)
    Patent number: 9499659
    Abstract: The present invention relates to novel latent curing agents for curing curable polymer resins, in particular epoxy resins, and to epoxy resin compositions and the use thereof in the production of fiber composites.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: November 22, 2016
    Assignee: ALZCHEM AG
    Inventors: Sylvia Strobel, Martin Ebner, Florian Ritzinger, Hans-Peter Krimmer
  • Liquid hardeners for hardening epoxide resins (II)
    Patent number: 9382374
    Abstract: The present invention relates to novel liquid hardeners for hardening hardenable polymer resins, particularly epoxide resins, and epoxide resin compositions and to the use thereof for producing composite fiber materials.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: July 5, 2016
    Assignee: ALZCHEM AG
    Inventors: Sylvia Strobel, Martin Ebner, Florian Ritzinger, Hans-Peter Krimmer
  • 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
  • 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
  • LIQUID HARDENERS FOR HARDENING EPOXIDE RESINS (II)
    Publication number: 20150158970
    Abstract: The present invention relates to novel liquid hardeners for hardening hardenable polymer resins, particularly epoxide resins, and epoxide resin compositions and to the use thereof for producing composite fibre materials.
    Type: Application
    Filed: July 31, 2013
    Publication date: June 11, 2015
    Applicant: ALZCHEM AG
    Inventors: Sylvia Strobel, Martin Ebner, Florian Ritzinger, Hans-Peter Krimmer
  • LIQUID HARDENERS FOR HARDENING EPOXIDE RESINS (I)
    Publication number: 20150158972
    Abstract: The present invention relates to novel latent curing agents for curing curable polymer resins, in particular epoxy resins, and to epoxy resin compositions and the use thereof in the production of fibre composites.
    Type: Application
    Filed: July 31, 2013
    Publication date: June 11, 2015
    Applicant: ALZCHEM AG
    Inventors: Sylvia Strobel, Martin Ebner, Florian Ritzinger, 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
  • NOVEL CURING AGENTS FOR EPOXY RESINS
    Publication number: 20130323429
    Abstract: The present invention relates to new mixtures containing cyanamide and a urea derivative, to liquid curing agents for curing polymer resins, in particular epoxy resins, and to epoxy resin compositions comprising liquid curing agents for producing fibre composite materials.
    Type: Application
    Filed: February 23, 2012
    Publication date: December 5, 2013
    Applicant: ALZCHEM AG
    Inventors: Sylvia Strobel, Martin Ebner, Hans-Peter Krimmer, Michaela Huber
  • 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