Patents by Inventor Efthalia V. Markessini

Efthalia V. Markessini 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).

  • Substitute for amino and phenolic resins
    Patent number: 4886854
    Abstract: A substitute for amino and phenolic resins is disclosed. It is used in the polycondensation of such resins based on formaldehyde for bonding water penetrable cellulosic particles. The substitute comprises an aqueous solution of(a) either at least one aldehyde together with at least one amide and/or together with at least one phenol, or a non-resinous condensation product of formaldehyde and urea, and(b) a sugar or a sugar derivative or their byproducts or a starch or its degradation products or a mixture thereof, and/or(c) a raw and/or treated lignosulfonate.This substitute also reduces the free formaldehyde of the resulting board without impairing the other properties thereof.
    Type: Grant
    Filed: June 5, 1987
    Date of Patent: December 12, 1989
    Assignee: ENIGMA, NV
    Inventors: Efthalia V. Markessini, Andrew C. Markessini
  • Formaldehyde binder
    Patent number: 4761184
    Abstract: A formaldehyde binder containing at least one organic hydroxy compound, at least one amide, and water. This binder is suitable for use in preparing boards from lignocellulosic materials using adhesive based on formaldehyde.
    Type: Grant
    Filed: February 11, 1987
    Date of Patent: August 2, 1988
    Assignee: Enigma N.V.
    Inventor: Efthalia V. Markessini