Method for producing a diene elastomer modified with a 1,3-dipolar compound
AssigneeCompagnie Generale Des Etablissements Michelin
InventorRokhiyatou SAID-DIATTA
Life of this patent
Estimating the term…
Abstract
A process for the preparation of a diene elastomer modified by a 1,3-dipolar compound is provided. The process comprises a thermomechanical kneading of a mixture of a diene elastomer and of a 1,3-dipolar compound in an internal mixer in order to form a modified diene elastomer, followed by an extrusion of the modified diene elastomer.
Claims18
A process for the preparation of a diene elastomer modified by a 1,3-dipolar compound, wherein the process comprises the following stages:
- a. a diene elastomer and a 1,3-dipolar compound are mixed by thermomechanical kneading in an internal mixer in order to form a diene elastomer modified by a reaction of grafting the 1,3-dipolar compound to the diene elastomer, and
- b. the modified diene elastomer is extruded.
A process for the preparation of a rubber composition based on a diene elastomer modified by a 1,3-dipolar compound and on a reinforcing filler which comprises the following stages:
- i. a diene elastomer and a 1,3-dipolar compound are mixed by thermomechanical kneading in an internal mixer in order to form a diene elastomer modified by a reaction of grafting the 1,3-dipolar compound to the diene elastomer,
- ii. the modified diene elastomer is extruded,
- iii. a reinforcing filler is incorporated in the modified diene elastomer resulting from stage ii) by thermomechanical kneading in an internal mixer.
A rubber composition comprising a reinforcing filler and granules of modified diene elastomer which are defined according to claim.
Dependencies are inferred from the claim text.