Patents by Inventor Lawrence J. Raponi

Lawrence J. Raponi 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).

  • Non-woven fabric with flame retardant properties and method of making same
    Patent number: 6913720
    Abstract: A non-woven fabric which consists of a blend 75% to 95% by weight of polypropylene based fibers and 5 to 25% by weight of polyester based fibers. The polypropylene fibers are extruded from a melt mixture of about 80 to 99% by weight polypropylene and about 1 to 20% by weight of a suitable heat stabilizer. The polyester based fibers are extruded from a melt mixture of 80% to 100% by weight polyester and 0 to 20% by weight of other stabilizers and/or fire retardants. The flame retardant compounds are added to and blended with the polyester melt prior to the extrusion of the polyester based fibers. Most preferably, the extruded polypropylene and polyester based fibers are staple fibers of between about 2 and 12 denier.
    Type: Grant
    Filed: December 10, 2002
    Date of Patent: July 5, 2005
    Inventors: Anthony S. Raponi, Lawrence J. Raponi
  • Non-woven fabric with flame retardant properties and method of making same
    Publication number: 20030114070
    Abstract: A non-woven fabric which consists of a blend 75% to 95% by weight of polypropylene based fibers and 5 to 25% by weight of polyester based fibers. The polypropylene fibers are extruded from a melt mixture of about 80 to 99% by weight polypropylene and about 1 to 20% by weight of a suitable heat stabilizer. The polyester based fibers are extruded from a melt mixture of 80% to 100% by weight polyester and 0 to 20% by weight of other stabilizers and/or fire retardants. The flame retardant compounds are added to and blended with the polyester melt prior to the extrusion of the polyester based fibers. Most preferably, the extruded polypropylene and polyester based fibers are staple fibers of between about 2 and 12 denier.
    Type: Application
    Filed: December 10, 2002
    Publication date: June 19, 2003
    Inventors: Anthony S. Raponi, Lawrence J. Raponi