Copolymer of a conjugated diene compound and a non-conjugated olefin, rubber composition, crosslinked rubber composition, and tire

摘要

Provided is a copolymer of a conjugated diene compound and a non-conjugated olefin, the copolymer being a random copolymer including randomly arranged monomer units of the conjugated diene compound and of the non-conjugated olefin, in which the non-conjugated olefin is preferably an acyclic olefin, the non-conjugated olefin preferably has 2 to 10 carbon atoms, and specific examples of the non-conjugated olefin preferably include ethylene, propylene, and 1-butene.

主权项

1. A copolymer of a conjugated diene compound and a non-conjugated olefin, comprising a random copolymer including randomly arranged monomer units of the conjugated diene compound and of the non-conjugated olefin,
wherein the conjugated diene compound unit has a cis-1,4 bond content of at least 25%, wherein the random structure has no crystallization temperature, which is to be derived from a block sequence including monomer units of the non-conjugated olefin, wherein the conjugated diene compound unit has 1,2 adducts (including 3,4 adducts) content of 5% or less, wherein the non-conjugated olefin is contained over 0 mol % to 50 mol % or less, and wherein the non-conjugated olefin is an acyclic olefin.