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:
Feb. 02, 2010
Filed:
Oct. 14, 2003
Diego Tirelli, Milan, IT;
Michele Galbusera, Milan, IT;
Franco Peruzzotti, Milan, IT;
Cristiano Puppi, Milan, IT;
Stefano Testi, Milan, IT;
Antonio Monterosso, Milan, IT;
Matteo Di Biase, Milan, IT;
Diego Tirelli, Milan, IT;
Michele Galbusera, Milan, IT;
Franco Peruzzotti, Milan, IT;
Cristiano Puppi, Milan, IT;
Stefano Testi, Milan, IT;
Antonio Monterosso, Milan, IT;
Matteo Di Biase, Milan, IT;
Pirelli & C. S.p.A., Milan, IT;
Abstract
A process for producing a rubber powder from a vulcanized rubber material by the steps of: a) feeding a grinding device with the vulcanized rubber material; b) contacting the vulcanized rubber material with at least one liquid coolant; c) introducing at least one grinding aid additive into the grinding device; d) operating the grinding device so as to grind the vulcanized rubber material to form a rubber powder, and e) discharging the rubber powder from the extruder.