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:
Mar. 15, 2005
Filed:
Apr. 12, 2000
Francesco Rossi, Spotorno, IT;
Antonio Ferrante, Milan, IT;
Francesco Rossi, Spotorno, IT;
Antonio Ferrante, Milan, IT;
Saint-Gobain Vetrotex France S.A., Chambery, FR;
Abstract
A fibrous reinforcing material () is envisaged which is produced from glass filaments (), advantageously consisting of fragments of glass yarns () or of chopped yarns, having a mean diameter of greater than five micrometers and a mean length of greater than six millimeters. The process comprises a selection step () during which the glass yarns () consisting of filaments having a diameter greater than or equal to five micrometers and less than or equal to twenty-four micrometers are chosen, optionally a step () of mixing the selected yarns, and a milling step () during which the mixed yarns are chopped into filaments () having a length of greater than or equal to six millimeters. Advantageously, the fibrous material is in the form of flakes.