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. 11, 2013
Filed:
Jul. 22, 2002
Renato Caretta, Gallarate, IT;
Maurizio Galimberti, Milan, IT;
Cesare Amurri, Sesto San Giovanni, IT;
Cristiano Puppi, Guanzate, IT;
Giuseppe Ducoli, Castellanza, IT;
Enrico Albizzati, Lesa, IT;
Renato Caretta, Gallarate, IT;
Maurizio Galimberti, Milan, IT;
Cesare Amurri, Sesto San Giovanni, IT;
Cristiano Puppi, Guanzate, IT;
Giuseppe Ducoli, Castellanza, IT;
Enrico Albizzati, Lesa, IT;
Pirelli Pneumatici S.p.A., Milan, IT;
Abstract
A process for continuously producing an elastomeric composition includes providing at least one extruder, metering and feeding at least one elastomer, at least one filler, and ingredients different from elastomers and fillers into the at least one extruder, mixing and dispersing the at least one filler and the ingredients different from elastomers and fillers into the at least one elastomer using the at least one extruder, and extruding a resulting elastomeric composition. The at least one extruder includes the housing and at least one screw rotatably mounted in the housing. The housing includes at least one feed opening and a discharge opening. At least one of the ingredients different from elastomers and fillers includes a subdivided product including one or more minor ingredients dispersed in at least one thermoplastic binding agent. An apparatus for continuously producing the elastomeric composition is also disclosed.