Patents by Inventor Ronilson Vasconcelos Barbosa

Ronilson Vasconcelos Barbosa 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 Nanocomposites Preparation, and Nanocomposites
    Publication number: 20090209694
    Abstract: The present invention relates the preparation process of nanocomposites polyolefins based on organophilic clay and polyolefins. More specifically, the present invention relates to a process to prepare nanocomposites, which provides more efficient exfoliation of organophilic clay particles in the polymeric matrix and, hence, a product with significantly improved mechanical, thermal and barrier properties, and good optical properties. The nanocomposite product obtained by means of the process herein described and claimed, constitutes, hence, a second aspect of the present invention.
    Type: Application
    Filed: July 14, 2006
    Publication date: August 20, 2009
    Applicants: BRASKEM S.A., Universidade Federal Do Rio Grande Do Sul
    Inventors: Susana Alcira Liberman, Luciana Portal Da Silva, Tarcisio Pelegrini Junior, Ronilson Vasconcelos Barbosa, Raquel Santos Mauler