Multicomponent copolymer, rubber composition, crosslinked rubber composition and rubber product
AssigneeBridgestone Corporation
InventorsYasuo Horikawa, Olivier Tardif
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Abstract
Provide is a polymer that can provide excellent toughness and weather resistance to a rubber composition and a rubber product such as a tire. The multicomponent copolymer contains a conjugated diene unit, a non-conjugated olefin unit and an aromatic vinyl unit, where a proportion of conjugated diene units bonded to a unit other than a conjugated diene unit out of the total conjugated diene units is 50% or more.
Claims20
A multicomponent copolymer comprising a conjugated diene unit, a non-conjugated olefin unit and an aromatic vinyl unit, wherein a proportion of conjugated diene units bonded to a unit other than a conjugated diene unit out of the total conjugated diene units is 50% or more, and
- wherein a proportion of conjugated diene units bonded only to a conjugated diene unit out of the total conjugated diene units is 35% or less.
Dependencies are inferred from the claim text.