Patents by Inventor Jack LeBlanc

Jack LeBlanc 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).

  • Flame-retardant, noncorrosive polyamide compositions
    Patent number: 5466741
    Abstract: Polyamide-based compositions, well suited for molding into a variety of shaped articles useful, e.g., in the electrical and electronics industries, contain an effective flame-retardant amount of red phosphorus and a corrosion/migration-reducing amount of at least one zinc compound selected from among zinc oxide, zinc sulfide and an oxygen-containing zinc salt, e.g., zinc borate.
    Type: Grant
    Filed: February 18, 1993
    Date of Patent: November 14, 1995
    Assignee: Rhone-Poulenc Chimie
    Inventors: Yves Bonin, Jack LeBlanc
  • Fire-resistant polyamide compositions
    Patent number: 4985485
    Abstract: Fire-resistant polyamide compositions contain red phosphorus, a lanthanide-based compound, optionally glass fibers, and a hydrotalcite stabilizer having the general formula: Mg.sub.(1-a) Al.sub.a (OH).sub.2 A.sub.a/2.pH.sub.2 O in which A=SO.sub.4.sup.2- or CO.sub.3.sup.2-, O<a.ltoreq.0.5 and O<p<1; shaped articles produced therefrom exhibit an excellent compromise of properties in respect of fire resistance, resilience, arc tracking resistance and aging behavior in a hot and humid atmosphere.
    Type: Grant
    Filed: October 13, 1989
    Date of Patent: January 15, 1991
    Assignee: Rhone-Poulenc Chimie
    Inventors: Yves Bonin, Jack LeBlanc
  • Fireproofed polyamide compositions
    Patent number: 4921896
    Abstract: Flameproofed polyamide-based molding compositions contain a fireproofing amount of a red phosphorus, at least one lanthanide compound, a stabilizing amount of talc and zinc sulfide and/or zinc oxide, and are well adopted for conversion into useful shaped articles presenting an attractive combination of properties in respect of flame resistance, resilience, arc tracking resistance and surface appearance.
    Type: Grant
    Filed: October 12, 1988
    Date of Patent: May 1, 1990
    Assignee: Rhone-Poulenc Chimie
    Inventors: Yves Bonin, Jack LeBlanc