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:
Nov. 11, 2003
Filed:
Jun. 14, 2002
Francesco Rossi, Spotorno, IT;
Antonio Ferrante, Milan, IT;
Saint-Gobain Vetrotex France S.A., Chambery, FR;
Abstract
A filler ( ) is envisioned which comprises glass-based granules ( ) provided with a sizing composition, in which filler each of the granules ( ) consists of a multiplicity of milled glass fragments ( ) agglomerated together by the agency of a sizing composition ( ) containing especially a compound chosen from esters of alkylsilicic acids, particularly an aminosilane. The process comprises a milling step ( ) during which the glassy material is comminuted into fragments by this milling, a metering step ( ) during which a mixture including the fragments ( ) and the sizing composition ( ) is formed and an agglomeration step ( ) during which the mixture is dried so as to form granules each including a multiplicity of fragments ( ) and dried parts of the sizing composition ( ).