Patents by Inventor Odyr do Coutto Filho

Odyr do Coutto 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).

  • Synthetic basestocks and process for producing same
    Patent number: 5780699
    Abstract: A process is described for the production of synthetic basestocks from an alpha-olefin feedstock with carbon number in the range C.sub.7 -C.sub.30 the feedstock having origin in an ethylene polymerization process, the process comprising contacting the feedstock with a solid or soluble cationic AlCl.sub.3 catalyst. After separation and distilling out of the light fraction of the oligomer, a basestock of excellent viscometric, rheological and thermal stability properties is obtained. The basestocks so obtained are also described.
    Type: Grant
    Filed: August 26, 1996
    Date of Patent: July 14, 1998
    Assignee: Petroleo Brasileiro S.A.-Petrobras
    Inventors: Odyr Do Coutto Filho, Noemi Tatizawa
  • Process for preparing a Ziegler type catalytic system and process for preparing ultra high molecular weight polyethylene
    Patent number: 4983693
    Abstract: Description of the preparation of a Ziegler type catalyst system through impregnation of a special alumina with 0.8-1.0% by weight of titanium derived from a dilute solution of titanium halide in n-hexane, the activator employed being triisobutylaluminum or triethylaluminum at an (Al)/(Ti) molar ratio of 2.5/1 to 80/1 in the catalyst. The catalyst system has high efficiency and yield, and leads to polyethylenes of excellent physical and mechanical properties which make it particularly suitable for use in engineering plastics.
    Type: Grant
    Filed: December 29, 1988
    Date of Patent: January 8, 1991
    Assignees: Petroleo Brasileiro S.A. -Petrobras, Polialden Petroquimica S.A.
    Inventors: Roberto B. Haag, Jaime C. da Silva, Juan R. Q. Abarca, Odyr do Coutto Filho