Patents by Inventor Fernanda de Oliveira Barreto COSTA

Fernanda de Oliveira Barreto COSTA 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: 9809684
    Abstract: The present invention relates to aqueous resin emulsions containing at least a non-ionic surfactant of general formula R1-(A1O)n-(A2O)x-(A3O)y—R2, obtained by the phase inversion emulsification process. In particular, the invention relates to aqueous resin emulsions commonly used in solvent-based paints, such as, for example, alkyd resins. Said emulsions are stabilized by non-ionic and anionic surfactant compositions which promote the inversion of the water-oil to oil-water phases in the presence of low water content, enabling water-oil type emulsions to be obtained with high productivity and high solids content, even in low shear conditions.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: November 7, 2017
    Assignee: OXITENO S.A. INDUSTRIA E COMERCIO
    Inventors: Silmar Balsamo Barrios, Juliane Pereira Santos, Pedro Henrique Invencione Porto, Fernanda de Oliveira Barreto Costa, Priscila Milani De Paula, Paulo de Jesus Cunha Filho, Renan Marcel Urenhiuki, Nádia Andrade Armelin, Servaas Engels
  • Publication number: 20170258078
    Abstract: This invention describes an adjuvant composition comprising a blend containing fatty acid esters with an alkoxylated polyol for drift reduction during the application of agrochemical product. This invention further describes the incorporation of this adjuvant composition in agrochemical formulations or the addition thereof in a step prior to its application, directly in the spray mix. The adjuvant composition described in this invention is compatible with a great variety of pesticides and inert components used in agrochemical compositions and proved to be able of reducing the formation of fine droplets, responsible for the formation of drift in more than one type of nozzle, without increasing the relative amplitude of the droplet spectrum, thus avoiding compromising the effectiveness of the active ingredient.
    Type: Application
    Filed: March 10, 2017
    Publication date: September 14, 2017
    Inventors: Fernanda de Oliveira Barreto COSTA, Thiago Melozo WALDRIGUI
  • Publication number: 20170029573
    Abstract: The present invention relates to aqueous resin emulsions containing at least a non-ionic surfactant of general formula R1—(A1O)n—(A2O)x—(A3O)y—R2, obtained by the phase inversion emulsification process. In particular, the invention relates to aqueous resin emulsions commonly used in solvent-based paints, such as, for example, alkyd resins. Said emulsions are stabilized by non-ionic and anionic surfactant compositions which promote the inversion of the water-oil to oil-water phases in the presence of low water content, enabling water-oil type emulsions to be obtained with high productivity and high solids content, even in low shear conditions.
    Type: Application
    Filed: March 25, 2015
    Publication date: February 2, 2017
    Inventors: Silmar Balsamo BARRIOS, Juliane Pereira SANTOS, Pedro Henrique Invencione PORTO, Fernanda de Oliveira Barreto COSTA, Priscila Milani DE PAULA, Paulo de Jesus Cunha FILHO, Renan Marcel URENHIUKI, Nádia Andrade ARMELIN, Servaas ENGELS