Patents by Inventor Eloi Alves da SILVA FILHO

Eloi Alves da SILVA FILHO 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: 20240101883
    Abstract: The described aspects relate to a dust suppression resin, and a method of obtaining the dust suppression resin through the chemical recycling of thermoplastic polymer Poly(Ethylene Terephthalate) or PET. The method for obtaining the resin includes a depolymerization reaction applied to the Poly(Ethylene Terephthalate) polymer, such as post-consumer PET fragments, in the presence of the quaternary ammonium cationic surfactant. The method further includes subsequently adding a hydrophilic substance to increase a final viscosity of the resin. Other additives such as lignin extracted from vegetables, such as leaves and branches of trees, can also be added to make the resin more hydrophobic.
    Type: Application
    Filed: September 26, 2023
    Publication date: March 28, 2024
    Inventors: Renata Eline Frank VASCONCELOS, Eloi Alves da SILVA FILHO, Carlos Vital Paixão de MELO
  • Publication number: 20180291246
    Abstract: The proposed invention is a process for obtaining the ore dust suppressant resin with the chemical recycling of Poly thermoplastic polymer (Ethylene Terephthalate) or PET. It is proposed a method for obtaining the resin by using the depolymerization reaction methodology of the Poly polymer (Ethylene Terephthalate) obtained from post-consumption PET bottles, in the presence of cationic surfactant hexadeciltrimetrilamonio bromide (CTAB). The resin is thus obtained being subsequently added to the same PVP K-90 (Polyvinylpyrrolidone) as increasing load on the final viscosity of the resin. Other additives such as lignin extracted from plants such as leaves and tree branches may also be added, in this case, incorporated to make the resin more hydrophobic.
    Type: Application
    Filed: October 29, 2015
    Publication date: October 11, 2018
    Inventors: Renata Eliane Frank VASCONCELOS, Eloi Alves da SILVA FILHO, Carlos Vital Paixao de MELO