Copolymer, rubber composition, crosslinked rubber composition, and tire
AssigneeBridgestone Corporation
InventorsYasuo Horikawa, Shojiro Kaita, Olivier Tardif, Junko Matsushita
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Abstract
Provided is a copolymer of a conjugated diene compound and a non-conjugated olefin, the copolymer being a block copolymer, the conjugated diene compound unit having 1,2 adduct (including 3,4 adduct) content of 5% or less or the conjugated diene compound unit having a cis-1,4 bond content of more than 92%, in which preferred examples of the conjugated diene compound include 1,3-butadiene and isopropylene, and preferred examples of the non-conjugated olefin include ethylene, propylene, and 1-butene.
Claims18
A copolymer of a conjugated diene compound and a non-conjugated olefin, wherein the copolymer is a block copolymer, and the conjugated diene compound unit has a 1,2 adduct (including 3,4 adduct) content of 5% or less, or the conjugated diene compound unit has a cis-1,4 bond content of more than 92%.
Dependencies are inferred from the claim text.