Patents by Inventor Johanna Garcia de Visicaro

Johanna Garcia de Visicaro 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: 9790374
    Abstract: Water-borne cross-linking polymeric compositions and related embodiments, such as methods of making and using the compositions, as well as products formed with said compositions are described. For example, the water-borne composition may comprise polymers incorporating cross-linking functionality such as, but not limited to, carbonyl or epoxy functionality, and a blocked cross-linking agent, for example, a hydrazone. The cross-linking functionality does not react with the blocked cross-linking agent; however, the blocked cross-linking agent is capable of reacting with the alternative form cross-linking agent such as, but not limited to, a hydrazide, to yield a cross-linked polymer. The alternative form cross-linking agent may be formed in an equilibrium reaction including the blocked cross-linking agent.
    Type: Grant
    Filed: June 3, 2011
    Date of Patent: October 17, 2017
    Assignee: Columbia Insurance Company
    Inventors: Yue Chen, Yong Yang, Robert J. Sheerin, Jean Fredrick Mauck, Navin Tilara, Johanna Garcia de Visicaro
  • Patent number: 8815981
    Abstract: The present invention relates to a dispersion of hybrid organic-inorganic nanocomposite molecules comprising discrete inorganic silica nanoparticles that are covalently bonded to organic polymers, wherein the dispersion has a high solid content (>30% wt.) and high silica content (>35% wt.) with low coagulum (about 100-400 ppm or about 0.05% wt or less). The hybrid organic-inorganic nanocomposite is prepared by (1) hydrolyzing silane monomers at acidic conditions; (2) surface treating inorganic silica nanoparticles with silane monomers; (3) stabilizing the surface-treated inorganic silica nanoparticles with an amine stabilizer; and (4) reacting organic monomers with surface-treated inorganic silica nanoparticles.
    Type: Grant
    Filed: February 11, 2011
    Date of Patent: August 26, 2014
    Assignee: Columbia Insurance Company
    Inventors: Yong Yang, Johanna Garcia de Visicaro, Robert Sheerin
  • Publication number: 20130005881
    Abstract: The present invention relates to a dispersion of hybrid organic-inorganic nanocomposite molecules comprising discrete inorganic silica nanoparticles that are covalently bonded to organic polymers, wherein the dispersion has a high solid content (>30% wt.) and high silica content (>35% wt.) with low coagulum (about 100-400 ppm or about 0.05% wt or less). The hybrid organic-inorganic nanocomposite is prepared by (1) hydrolyzing silane monomers at acidic conditions; (2) surface treating inorganic silica nanoparticles with silane monomers; (3) stabilizing the surface-treated inorganic silica nanoparticles with an amine stabilizer; and (4) reacting organic monomers with surface-treated inorganic silica nanoparticles.
    Type: Application
    Filed: February 11, 2011
    Publication date: January 3, 2013
    Inventors: Yong Yang, Johanna Garcia De Visicaro, Robert Sheerin
  • Publication number: 20120142847
    Abstract: Water-borne cross-linking polymeric compositions and related embodiments, such as methods of making and using the compositions, as well as products formed with said compositions are described. For example, the water-borne composition may comprise polymers incorporating cross-linking functionality such as, but not limited to, carbonyl or epoxy functionality, and a blocked cross-linking agent, for example, a hydrazone. The cross-linking functionality does not react with the blocked cross-linking agent; however, the blocked cross-linking agent is capable of reacting with the alternative form cross-linking agent such as, but not limited to, a hydrazide, to yield a cross-linked polymer. The alternative form cross-linking agent may be formed in an equilibrium reaction including the blocked cross-linking agent.
    Type: Application
    Filed: June 3, 2011
    Publication date: June 7, 2012
    Applicant: Columbia Insurance Company
    Inventors: Yong Yang, Yue Chen, Robert J. Sheerin, Jean Fredrick Mauck, Navin Tilara, Johanna Garcia de Visicaro