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:
Aug. 07, 2012
Filed:
Jul. 11, 2002
Maurizio Galimberti, Milan, IT;
Cristiano Puppi, Guanzate, IT;
Francesco Romani, Sarzana, IT;
Stefano Testi, Monza, IT;
Enrico Albizzati, Lesa, IT;
Maurizio Galimberti, Milan, IT;
Cristiano Puppi, Guanzate, IT;
Francesco Romani, Sarzana, IT;
Stefano Testi, Monza, IT;
Enrico Albizzati, Lesa, IT;
Pirelli Pneumatici S.p.A., Milan, IT;
Abstract
A process for continuously producing an elastomeric composition includes metering and feeding at least one elastomer and at least one filler into at least one extruder, mixing and dispersing the at least one filler into the at least one elastomer using the at least one extruder, and passing the composition that results through at least one static mixer. An apparatus for continuously producing the composition includes at least one twin-screw extruder, at least one metering device, and at least one static mixer. The at least one extruder includes a housing and two screws rotatably mounted in the housing. The housing includes at least one feed opening and a discharge opening. The at least one metering device meters and feeds at least one elastomer and at least one filler into the at least one extruder. The composition discharged from the discharge opening passes through the at least one static mixer.