Patents by Inventor Rafael A. Quintero-Arcaya

Rafael A. Quintero-Arcaya 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 reducing scale formation in vinyl polymerization reactors
    Patent number: 5194301
    Abstract: The present invention refers to a process for inhibiting the formation of polymer buildup on the inner surfaces of a vinyl polymerization reactor by coating such surfaces with an alkaline solution of a linear or branched low molecular weight compound belonging to the poly(hydroxybenzyl) and poly(hydroxybenzylether) families and including their copolymers or blends. This process effectively reduces the adherence of polymeric material to the inner parts of the reaction vessel wherein substituted ethylene monomers are polymerized.
    Type: Grant
    Filed: November 20, 1991
    Date of Patent: March 16, 1993
    Assignee: Investigacion y Desarrollo, C.A.
    Inventors: Neida C. Boscan-Romero, Jose L. Corcuera-Casas, Edgar R. Gonzalez-Acevedo, Enrique J. Millan-Barrios, Rafael A. Quintero-Arcaya