Patents by Inventor Cathy Grossnickel

Cathy Grossnickel 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).

  • Publication number: 20240093072
    Abstract: One-component epoxy adhesives containing a phosphorus-modified epoxy resin, a toughener and an epoxy resin that is neither rubber-modified nor phosphorus-modified. These adhesives are structural adhesives useful in automotive applications. They exhibit particularly good corrosion resistance.
    Type: Application
    Filed: November 15, 2023
    Publication date: March 21, 2024
    Inventors: Felix Koch, Andreas Lutz, Cathy Grossnickel, Jeannine Flueckiger
  • Patent number: 11674063
    Abstract: Disclosed are one-component epoxy resin adhesive compositions which include (a) one or more non-rubber-modified epoxy resins; (b) one or more latent epoxy curing agents; (c) one or more toughening agents; and (d) zinc oxide nanoparticles. The one-component epoxy resin adhesive compositions exhibit improved toughness of the adhesive as measured by its lap shear strength as well as improved environmental stability, i.e., corrosion protection, by addition of the zinc oxide nanoparticles when applied to metal substrates.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: June 13, 2023
    Assignee: DDP Specialty Electronic Materials US, LLC
    Inventors: Felix Koch, Andreas Lutz, Beda Steiner, Cathy Grossnickel, Jeannine Flueckiger
  • Publication number: 20210130663
    Abstract: One-component epoxy adhesives containing a phosphorus-modified epoxy resin, a toughener and an epoxy resin that is neither rubber-modified nor phosphorus-modified. These adhesives are structural adhesives useful in automotive applications. They exhibit particularly good corrosion resistance.
    Type: Application
    Filed: July 20, 2018
    Publication date: May 6, 2021
    Applicant: DDP SPECIALTY ELECTRONICS MATERIALS US, INC.
    Inventors: Felix Koch, Andreas Lutz, Cathy Grossnickel, Jeannine Flueckiger
  • Publication number: 20210062054
    Abstract: Disclosed are one-component epoxy resin adhesive compositions which include (a) one or more non-rubber-modified epoxy resins; (b) one or more latent epoxy curing agents; (c) one or more toughening agents; and (d) zinc oxide nanoparticles. The one-component epoxy resin adhesive compositions exhibit improved toughness of the adhesive as measured by its lap shear strength as well as improved environmental stability, i.e., corrosion protection, by addition of the zinc oxide nanoparticles when applied to metal substrates.
    Type: Application
    Filed: December 7, 2018
    Publication date: March 4, 2021
    Inventors: FELIX KOCH, ANDREAS LUTZ, BEDA STEINER, CATHY GROSSNICKEL, JEANNINE FLUECKIGER
  • Patent number: 10815405
    Abstract: A one-component epoxy-modified polyurethane and/or urea adhesive includes very high levels of reactive urethane group- and/or urea group-containing tougheners, an epoxy resin and epoxy hardener. These adhesives are formulated to cure at high temperatures and surprisingly provide high elongations, excellent thermal stability and good adhesive properties.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: October 27, 2020
    Assignee: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Benjamin Haag, Andreas Lutz, Cathy Grossnickel, Raymond F. Bis
  • Publication number: 20190010373
    Abstract: A one-component epoxy-modified polyurethane and/or urea adhesive includes very high levels of reactive urethane group- and/or urea group-containing tougheners, an epoxy resin and epoxy hardener. These adhesives are formulated to cure at high temperatures and surprisingly provide high elongations, excellent thermal stability and good adhesive properties.
    Type: Application
    Filed: January 9, 2017
    Publication date: January 10, 2019
    Inventors: Benjamin Haag, Andreas Lutz, Cathy Grossnickel, Raymond F. Bis
  • Patent number: 10150897
    Abstract: The invention relates to an adhesive composition having an added component of rubber-epoxy such as XNBR-epoxy adducts. It was found that the new adhesive composition significantly reduces meander formation in the making of automotive parts.
    Type: Grant
    Filed: April 7, 2014
    Date of Patent: December 11, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: Andreas Lutz, Christof Braendli, Cathy Grossnickel
  • Publication number: 20170107408
    Abstract: The invention relates to structural epoxy adhesives comprising an epoxy resin, a trifunctional epoxy resin; and a polyphenolic blocked polyurethane. The cured adhesives exhibit high Tg and good mechanical properties. The invention includes methods of making, and curing the adhesives, as well as the cured adhesive and article comprising the cured adhesive.
    Type: Application
    Filed: June 30, 2015
    Publication date: April 20, 2017
    Applicant: Dow Europe GmbH
    Inventors: Benjamin B Haag, Andreas Lutz, Cathy Grossnickel
  • Publication number: 20170081571
    Abstract: The invention relates to an adhesive composition having an added component of rubber-epoxy such as XNBR-epoxy adducts. It was found that the new adhesive composition significantly reduces meander formation in the making of automotive parts.
    Type: Application
    Filed: April 7, 2014
    Publication date: March 23, 2017
    Inventors: Andreas Lutz, Christof Braendli, Cathy Grossnickel
  • Publication number: 20120071584
    Abstract: Core-shell rubbers are incorporated into epoxy adhesives. The adhesives are structural type adhesives that contain an epoxy resin and a toughener, and may contain a liquid rubber in addition to the core-shell rubber. The adhesives have good modulus and tensile strength, which are obtained without loss of elongation and adhesive properties.
    Type: Application
    Filed: November 30, 2011
    Publication date: March 22, 2012
    Inventors: Andreas Lutz, Jeannine Fluckiger, Cathy Grossnickel
  • Patent number: 8088245
    Abstract: Core-shell rubbers are incorporated into epoxy adhesives. The adhesives are structural type adhesives that contain an epoxy resin and a toughener, and may contain a liquid rubber in addition to the core-shell rubber. The adhesives have good modulus and tensile strength, which are obtained without loss of elongation and adhesive properties.
    Type: Grant
    Filed: April 9, 2008
    Date of Patent: January 3, 2012
    Assignee: Dow Global Technologies LLC
    Inventors: Andreas Lutz, Jeannine Fluekiger, Cathy Grossnickel
  • Publication number: 20110297317
    Abstract: Structural adhesives containing a non-rubber-modified epoxy resin, an elastomeric toughener and a curing agent further include an epoxy-functional fatty acid oligomer and a polyol. The presence of the epoxy-functional fatty acid oligomer and a semi-crystalline or crystalline polyester polyol in combination increase the storage stability of the structural adhesive.
    Type: Application
    Filed: February 3, 2010
    Publication date: December 8, 2011
    Inventors: Andreas Lutz, Daniel Schneider, Cathy Grossnickel, Christof Braendli
  • Patent number: 7910656
    Abstract: The invention relates to an epoxy adhesive composition comprising a) a first epoxy resin, b) a second epoxy resin modified with an acrylonitrile-butadiene rubber, the latter comprising on average less than about 25 weight percent acrylonitrile, and c) a toughener. The total amount of component b) and component c) is higher than about 30 percent based on the total weight of the composition, and the weight ratio of component c) to component b) is greater than about 1:1. The invention further relates to the use of said epoxy adhesive composition for the assembly of parts of a vehicle. It also relates to a vehicle, parts of which are assembled by said epoxy adhesive composition.
    Type: Grant
    Filed: March 11, 2005
    Date of Patent: March 22, 2011
    Assignee: Dow Global Technologies LLC
    Inventors: Andreas Lutz, Cathy Grossnickel, Karsten Frick
  • Publication number: 20080251203
    Abstract: Core-shell rubbers are incorporated into epoxy adhesives. The adhesives are structural type adhesives that contain an epoxy resin and a toughener, and may contain a liquid rubber in addition to the core-shell rubber. The adhesives have good modulus and tensile strength, which are obtained without loss of elongation and adhesive properties.
    Type: Application
    Filed: April 9, 2008
    Publication date: October 16, 2008
    Inventors: Andreas Lutz, Jeannine Fluekiger, Cathy Grossnickel
  • Publication number: 20050209401
    Abstract: The invention relates to an epoxy adhesive composition comprising a) a first epoxy resin, b) a second epoxy resin modified with an acrylonitrile-butadiene rubber, the latter comprising on average less than about 25 weight percent acrylonitrile, and c) a toughener. The total amount of component b) and component c) is higher than about 30 percent based on the total weight of the composition, and the weight ratio of component c) to component b) is greater than about 1:1. The invention further relates to the use of said epoxy adhesive composition for the assembly of parts of a vehicle. It also relates to a vehicle, parts of which are assembled by said epoxy adhesive composition.
    Type: Application
    Filed: March 11, 2005
    Publication date: September 22, 2005
    Inventors: Andreas Lutz, Cathy Grossnickel, Karsten Frick