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:
Apr. 29, 2014
Filed:
Jul. 23, 2009
Frederic Pialot, Moissat, FR;
Damien Fombelle, Chappes, FR;
Bozena Voge, Coumon d'Auvergne, FR;
Jose Merino Lopez, Riom, FR;
Frederic Pialot, Moissat, FR;
Damien Fombelle, Chappes, FR;
Bozena Voge, Coumon d'Auvergne, FR;
Jose Merino Lopez, Riom, FR;
Michelin Recherche et Technique S.A., Granges-Paccot, CH;
Compagnie Generale des Etablissements Michelin, Clermont-Ferrand, FR;
Abstract
Process for manufacturing a self-sealing elastomer composition, wherein the process comprises the following steps: firstly a masterbatch comprising at least one diene elastomer and a thermoplastic plasticizing hydrocarbon resin with a content greater than 30 phr is manufactured by compounding these various components in a mixer at a temperature or up to a temperature called the 'hot compounding temperature' which is above the softening point of the hydrocarbon resin; and then at least one crosslinking system is incorporated into the masterbatch thus prepared, by compounding everything, in the same mixer or in a different mixer, at a temperature or up to a maximum temperature which is kept below 100° C., in order to obtain said self-sealing composition, and wherein at least one liquid plasticizer having a glass transition temperature (T) below −20° C. is furthermore incorporated in an amount of less than 60 phr into said masterbatch or into said composition.