Patents by Inventor Judith Dolores Espinoza Perez

Judith Dolores Espinoza Perez 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).

  • Epoxy systems having improved fracture toughness
    Patent number: 10081704
    Abstract: The disclosure relates to at least one partially reacted product of an isocyanate and an amine (e.g., a reaction product comprising at least one adducted compound). The reaction product comprises polyurea oligomers. The reaction product can be combined with at least one amine in order to formulate a curing agent for epoxy resins wherein the cured epoxy resin has enhanced fracture toughness. The at least partially reacted product does not increase the viscosity of the curing agent and is at least partially soluble in the amine component of the curing agent.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: September 25, 2018
    Assignee: Evonik Degussa GmbH
    Inventors: Pritesh G. Patel, Judith Dolores Espinoza Perez, Gauri Sankar Lal, Jared Denis Bender, Edze Jan Tijsma
  • EPOXY SYSTEMS HAVING IMPROVED FRACTURE TOUGHNESS
    Publication number: 20160280844
    Abstract: The disclosure relates to at least one partially reacted product of an isocyanate and an amine (e.g., a reaction product comprising at least one adducted compound). The reaction product comprises polyurea oligomers. The reaction product can be combined with at least one amine in order to formulate a curing agent for epoxy resins wherein the cured epoxy resin has enhanced fracture toughness. The at least partially reacted product does not increase the viscosity of the curing agent and is at least partially soluble in the amine component of the curing agent.
    Type: Application
    Filed: March 22, 2016
    Publication date: September 29, 2016
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Pritesh G. Patel, Judith Dolores Espinoza Perez, Gauri Sankar Lal, Jared Denis Bender, Edze Jan Tijsma