Patents by Inventor M. Serge Tetart

M. Serge Tetart 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).

  • Phenolic resin, procedure for preparation of the resin, and sizing composition for mineral fibers containing this resin
    Patent number: 5340903
    Abstract: The invention concerns a phenolic resin.The resin is a liquid, contains phenol-formaldehyde, formaldehyde-urea and phenol-formaldehyde-amine condensates, and has a free formaldehyde content of less than 3%, this proportion being expressed as a percentage of the total fluid weight, and a dilutability rate in water which equals or surpasses 1,000%. Furthermore, the resin is stable when heated. Application to less-polluting sizing compositions for mineral fibers; and use of the fibers thus sized for the manufacture of insulating products and soilless cultivation substrates.
    Type: Grant
    Filed: August 27, 1993
    Date of Patent: August 23, 1994
    Assignee: Isover Saint-Gobain
    Inventors: M. Serge Tetart, M. David Segal
  • Phenolic resin, procedure for preparation of the resin, and sizing composition for mineral fibers containing this resin
    Patent number: 5270434
    Abstract: The invention concerns a phenolic resin.The resin is a liquid, contains phenol-formaldehyde, formaldehyde-urea and phenol-formaldehyde-amine condensates, and has a free formaldehyde content of less than 3%, this proportion being expressed as a percentage of the total fluid weight, and a dilutability rate in water which equals or surpasses 1,000%. Furthermore, the resin is stable when heated. Application to less-polluting sizing compositions for mineral fibers; and use of the fibers thus sized for the manufacture of insulating products and soilless cultivation substrates.
    Type: Grant
    Filed: November 2, 1992
    Date of Patent: December 14, 1993
    Assignee: Isover Saint-Gobain
    Inventors: M. Serge Tetart, M. David Segal