Multi-component copolymer, rubber composition, crosslinked rubber composition and rubber article
AssigneeBridgestone Corporation
InventorYasuo Horikawa
Life of this patent
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Abstract
Provided is a multi-component copolymer comprising conjugated diene units, non-conjugated olefin units and aromatic vinyl units, wherein: a peak top molecular weight of chain parts, divided by the conjugated diene units and each containing one or more of the non-conjugated olefin units and/or one or more of the aromatic vinyl units, is 1,000 or more and less than 40,000. A rubber composition comprising the multi-component copolymer, a crosslinked rubber composition, and a rubber article comprising the crosslinked rubber composition are also provided.
Claims19
A multi-component copolymer comprising conjugated diene units, non-conjugated olefin units and aromatic vinyl units, wherein:
- a peak top molecular weight of chain parts, divided by the conjugated diene units and each containing one or more of the non-conjugated olefin units and/or one or more of the aromatic vinyl units, is 1,000 or more and less than 40,000 g/mol;
- and
- a content of the aromatic vinyl units is 5 mol % or more.
Dependencies are inferred from the claim text.