PROPYLENE-BASED POLYMER ADDITIVES FOR IMPROVED TIRE TREAD PERFORMANCE
An elastomeric composition is disclosed. The elastomeric composition includes, per 100 parts by weight of rubber (phr): about 30 to about 50 phr of polybutadiene having a cis-1,4 linkage content of at least 95%; about 40 to about 60 phr of styrene/butadiene copolymer; about 0 to about 20 phr of natu...
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Sprache: | eng ; fre ; ger |
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Zusammenfassung: | An elastomeric composition is disclosed. The elastomeric composition includes, per 100 parts by weight of rubber (phr): about 30 to about 50 phr of polybutadiene having a cis-1,4 linkage content of at least 95%; about 40 to about 60 phr of styrene/butadiene copolymer; about 0 to about 20 phr of natural rubber or polyisoprene; about 0 to about 30 phr of a processing oil; about 10 to about 30 phr of a hydrocarbon resin; about 50 to about 75 phr of a filler; a curative agent; an antioxidant; a silane coupling agent; and about 5 to about 30 phr of a propylene-ethylene-diene terpolymer containing from about 2 wt % to about 30 wt % of ethylene and/or C4-C20 α-olefins derived units. |
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