Rubber compound for tire portions

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United States of America Patent

PATENT NO 11732114
APP PUB NO 20210347967A1
SERIAL NO

17277444

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Abstract

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A rubber compound for the production of tire portions comprising a polymer base with a cross-linkable unsaturated chain, a filler system and a vulcanization system. The filler system comprises (a) a quantity, greater than or equal to 25 phr, of a first carbon black having a surface area smaller than or equal to 170 m2/gr; (b) a second carbon black having a surface area greater than or equal to 300 m2/gr in a quantity that is such that the ratio between the quantity of said first carbon black and the quantity of said second carbon black is greater than or equal to 5 and smaller than or equal to 13; (c) a quantity ranging between 0.5 and 2.0 phr of a dispersant agent comprised in the class of aromatic amides and having an unsaturation suited to interact with the polymer base with a cross-linkable unsaturated chain.

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Patent Owner(s)

Patent OwnerAddress
BRIDGESTONE EUROPE N V /S ADA VINCILAAN 1 1930 ZAVENTEM

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chieffi, Gianpaolo Rome, IT 4 1
Privitera, Davide Rome, IT 12 14
Saiki, Aya Rome, IT 10 13

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