Patents by Inventor Eduardo Duarte Villa

Eduardo Duarte Villa 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).

  • SUPER-HYDROPHOBIC COMPOSITION, PREPARATION OF SAME AND SUPER-HYDROPHOBIC PAPER
    Publication number: 20150075407
    Abstract: A super-hydrophobic composition for layer recovering, particularly paper, in which the composition is a mixture of at least one hydrophobic agent of chromium complex and inorganic nanoparticles selected from a group consisting of hydrophobic nanoparticles, hydrophilic nanoparticles and combinations thereof, with an average particle size of 1 nm to 35 nm.
    Type: Application
    Filed: March 22, 2013
    Publication date: March 19, 2015
    Inventors: José Trinidad Peregnina Gómez, Eduardo Duarte Villa, Miguel De Dios Hernández, Gonzalo Castro Contreras
  • Paper based on recycled papers and process for producing thereof
    Patent number: 8349133
    Abstract: A paper includes a composition of 10% by weight to 40% by weight of recovered post-consumer paper, 60% by weight to 90% by weight of recovered white paper, 0.38% by weight to 0.45% by weight of one or more sizing agents, and 3.33% by weight to 3.95% by weight of one or more binding agents.
    Type: Grant
    Filed: April 11, 2012
    Date of Patent: January 8, 2013
    Assignee: Copamex, S.A. de C.V
    Inventors: Eduardo Duarte Villa, José Trinidad Peregrina Gomez
  • PAPER BASED ON RECYCLED PAPERS AND PROCESS FOR PRODUCING THEREOF
    Publication number: 20120205064
    Abstract: A paper includes a composition of 10% by weight to 40% by weight of recovered post-consumer paper, 60% by weight to 90% by weight of recovered white paper, 0.38% by weight to 0.45% by weight of one or more sizing agents, and 3.33% by weight to 3.95% by weight of one or more binding agents.
    Type: Application
    Filed: April 11, 2012
    Publication date: August 16, 2012
    Applicant: COPAMEX, S. A. DE C. V.
    Inventors: Eduardo Duarte Villa, Jose Trinidad Peregrina Gomez
  • Paper based on recycled papers and process for producing thereof
    Patent number: 8157958
    Abstract: A paper produced according to this invention presents a composition of 10% by weight to 40% by weight of recovered post-consumer paper; 60% by weight to 90% by weight of recovered white paper; 0.38% by weight to 0.45% by weight of one or more sizing agents, and 3.33% by weight to 3.95% by weight of one or more binding agents. The method for producing paper that comprises the steps of forming a paper pulp from a mixture of 10% by weight to 40% by weight of recovered post-consumer paper, 60% by weight 90% by weight of recovered white paper, and 0.38% by weight to 0.45% by weight of one or more binding agents; reacting the pulp mixture with 0.38% by weight to 0.45% of one or more of sizing agents, and 0.75% by weight to 0.9% by weight of one or more binding agents; forming and drying a continuous sheet of paper from the pulp mixture, and reacting the continuous sheet of paper with 2.2% by weight to 2.6% by weight of one or more binding agents.
    Type: Grant
    Filed: December 4, 2009
    Date of Patent: April 17, 2012
    Assignee: Copamex, S.A. de C.V.
    Inventors: Eduardo Duarte Villa, José Trinidad Peregrina Gomez
  • PAPER BASED ON RECYCLED PAPERS AND PROCESS FOR PRODUCING THEREOF
    Publication number: 20100155005
    Abstract: A paper produced according to this invention presents a composition of 10% by weight to 40% by weight of recovered post-consumer paper; 60% by weight to 90% by weight of recovered white paper; 0.38% by weight to 0.45% by weight of one or more sizing agents, and 3.33% by weight to 3.95% by weight of one or more binding agents. The method for producing paper that comprises the steps of forming a paper pulp from a mixture of 10% by weight to 40% by weight of recovered post-consumer paper, 60% by weight 90% by weight of recovered white paper, and 0.38% by weight to 0.45% by weight of one or more binding agents; reacting the pulp mixture with 0.38% by weight to 0.45% of one or more of sizing agents, and 0.75% by weight to 0.9% by weight of one or more binding agents; forming and drying a continuous sheet of paper from the pulp mixture, and reacting the continuous sheet of paper with 2.2% by weight to 2.6% by weight of one or more binding agents.
    Type: Application
    Filed: December 4, 2009
    Publication date: June 24, 2010
    Applicant: Copamex, S. A. De C. V.
    Inventors: Eduardo Duarte Villa, Jose Trinidad Peregrina Gomez