Conjugated diene based polymer, and polymer composition containing the polymer
AssigneeSumitomo Chemical Company, Limited
InventorMana Fujii
Life of this patent
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Abstract
The present invention related to a conjugated diene based polymer comprising a monomer unit derived from a noncyclic conjugated diene and a monomer unit derived from an alicyclic hydrocarbon compound having a non-conjugated carbon-carbon double bond.
Claims6
A conjugated diene based polymer comprising a monomer unit derived from a noncyclic conjugated diene and a monomer unit derived from an alicyclic hydrocarbon compound having a non-conjugated carbon-carbon double bond, wherein the alicyclic hydrocarbon compound having a non-conjugated carbon-carbon double bond is a compound represented by formula (1),
- wherein R1, R4, and R8 each independently represent a methine group or a carbon atom, R2, R3, R5, and R6 each independently represent a group represented by —C(R11)(R12)—, wherein R11 and R12 each independently represent a hydrogen atom or a hydrocarbyl group having 1 to 10 carbon atoms, or a group represented by —CH═, R7 and R9 each independently represent a hydrocarbyl group having 1 to 10 carbon atoms or a group represented by ═C(R13)(R14), wherein R13 and R14 each independently represent a hydrogen atom or a hydrocarbyl group having 1 to 10 carbon atoms, and R10 represents a hydrocarbyl group having 1 to 10 carbon atoms.
A method for producing a conjugated diene based polymer, wherein the method comprises a step of polymerizing monomer components in a hydrocarbon solvent with an alkali metal catalyst, the monomer components comprising a noncyclic conjugated diene and an alicyclic hydrocarbon compound having a non-conjugated carbon-carbon double bond, wherein the alicyclic hydrocarbon compound having a non-conjugated carbon-carbon double bond is a compound represented by formula (1),
- wherein R1, R4, and R8 each independently represent a methine group or a carbon atom R2, R3, R5, and R6 each independently represent a group represented by —C(R11)(R12)—, wherein R11 and R12 each independently represent a hydrogen atom or a hydrocarbyl group having 1 to 10 carbon atoms, or a group represented by —CH═, R7 and R9 each independently represent a hydrocarbyl group having 1 to 10 carbon atoms or a group represented by ═C(R13)(R14), wherein R13 and R14 each independently represent a hydrogen atom or a hydrocarbyl group having 1 to 10 carbon atoms, and R10 represents a hydrocarbyl group having 1 to 10 carbon atoms.
Dependencies are inferred from the claim text.