The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 20, 1993
Filed:
Aug. 10, 1992
Christian Guillard, Vincennes, FR;
Bernard Gicquel, Saint Brice Sous Foret, FR;
Guy Berthier, Clermont, FR;
Isover Saint-Gobain. 'Les Miroirs', Courbevoie, FR;
Abstract
Discontinuous fibers are manufactured from a thermoplastic material having an elevated melting point by feeding molten thermoplastic material into a centrifugal chamber. The chamber includes a plurality of orifices through which the molten thermoplastic material is forced, thereby forming molten thermoplastic jets. Hot streams of gas are directed at these jets to convert the jets into thermoplastic fibers. Sizing agents including an emulsion or suspension in water, or an aqueous solution of active substances is sprayed onto the fibers. These sizing agents comprise no more than three active substances including a lubricating agent and an antistatic agent.