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:
Jun. 21, 2011
Filed:
Dec. 04, 2002
Renato Caretta, Gallarate, IT;
Maurizio Galimberti, Milan, IT;
Cristiano Puppi, Guanzate, IT;
Cesare Amurri, Sesto San Giovanni, IT;
Stefano Testi, Monza, IT;
Francesco Romani, Sarzana, IT;
Renato Caretta, Gallarate, IT;
Maurizio Galimberti, Milan, IT;
Cristiano Puppi, Guanzate, IT;
Cesare Amurri, Sesto San Giovanni, IT;
Stefano Testi, Monza, IT;
Francesco Romani, Sarzana, IT;
Pirelli Pneumatici S.p.A., Milan, IT;
Abstract
A process for continuously producing an elastomeric composition includes metering at least one elastomer, at least one filler, and at least one minor ingredient; feeding the at least one elastomer, the at least one filler, and the at least one minor ingredient into at least one extruder; mixing and dispersing the at least one filler and the at least one minor ingredient into the at least one elastomer using the at least one extruder; obtaining a subdivided product from a resulting elastomeric composition discharged from the at least one extruder; accumulating an amount of the subdivided product; and stirring the accumulated amount of the subdivided product. An apparatus for continuously producing an elastomeric composition includes at least one extruder, at least one first metering device, at least one second metering device, at least one device for obtaining a subdivided product, and at least one accumulating and stirring device.