Patents by Inventor Cristian Westermeyer

Cristian Westermeyer 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).

  • Adhesive composition comprising isocyanate phenol-formaldehyde and tannin, useful for manufacturing plywoods for exterior application
    Patent number: 5407980
    Abstract: The present invention relates to an adhesive composition for manufacturing plywood for exterior application including:a) 121 parts by weight phenolic resin;b) 5 to 121 parts by weight isocyanate;c) 1 to 40 parts by weight tannin selected from the group consisting of pine, quebracho, mimosa, and combinations thereof;d) 1 to 15 parts by weight paraformaldehyde or formaldehyde solutions in water;e) 5 to 50 parts by weight of water; andf) an amount of filler comprising inorganic and/or organic materials for providing the composition with the desired viscosity.
    Type: Grant
    Filed: November 18, 1992
    Date of Patent: April 18, 1995
    Assignees: Diteco Ltda, Quimicos Coronel S.A.
    Inventors: Antonio Pizzi, Ernst Von Leyser, Cristian Westermeyer