Patents by Inventor Andre Messias Teixeira

Andre Messias Teixeira 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).

  • Process for production of nanoparticles of solid lubricant and lubricant dispersions stable in oil and in water
    Patent number: 9512377
    Abstract: The process basically comprises: dissolving a lamellar disulphide, as a source of the solid lubricant, in an aqueous solvent, forming a first aqueous solution; dissolving a reducing agent, as hydroxylamine, sodium hypophosphite or sodium borohydride, in an aqueous solvent, forming a second aqueous solution; mixing the first and second aqueous solutions, forming a third aqueous solution; neutralizing the pH of the third aqueous solution; dissolving a sulphur source, in an aqueous solvent, forming a fourth aqueous solution; mixing the third and fourth aqueous solutions, forming a fifth aqueous solution, which is contained and heated in an autoclave; cooling the fifth aqueous solution to the room temperature; and removing, from the autoclave, the nanoparticles in powder form.
    Type: Grant
    Filed: July 12, 2012
    Date of Patent: December 6, 2016
    Assignees: Whirlpool S.A., Universidade Federal De Santa Catarina
    Inventors: Roberto Binder, Fernando Withers Torres, Valderes Drago, Cristian Bernardi, Aloisio Nelmo Klein, Cristiano Binder, Andre Messias Teixeira
  • PROCESS FOR PRODUCTION OF NANOPARTICLES OF SOLID LUBRICANT AND LUBRICANT DISPERSIONS STABLE IN OIL AND IN WATER
    Publication number: 20140221259
    Abstract: The process basically comprises: dissolving a lamellar disulphide, as a source of the solid lubricant, in an aqueous solvent, forming a first aqueous solution; dissolving a reducing agent, as hydroxylamine, sodium hypophosphite or sodium borohydride, in an aqueous solvent, forming a second aqueous solution; mixing the first and second aqueous solutions, forming a third aqueous solution; neutralizing the pH of the third aqueous solution; dissolving a sulphur source, in an aqueous solvent, forming a fourth aqueous solution; mixing the third and fourth aqueous solutions, forming a fifth aqueous solution, which is contained and heated in an autoclave; cooling the fifth aqueous solution to the room temperature; and removing, from the autoclave, the nanoparticles in powder form.
    Type: Application
    Filed: July 12, 2012
    Publication date: August 7, 2014
    Applicants: UNIVERSIDADE FEDERAL DE SANTA CATARINA (UFSC), Whirlpool S.A.
    Inventors: Roberto Binder, Fernando Withers Torres, Valderes Drago, Cristian Bernardi, Aloisio Nelmo Klein, Cristiano Binder, Andre Messias Teixeira