| 摘要 |
<p>A process for preparing modified diene polymer rubbers having an increased impact resilience, a reduced hardness at low temperatures and an improved processability, and useful as rubber materials for automobile tires and other industries which comprises producing a conjugated diene polymer having alkali metal end or ends, and reacting the alkali metal-containing polymer with (a) a silicon or tin compound of the formula: RaMXb wherein R is an alkyl group, an alkenyl group, a cycloalkenyl group or an aromatic hydrocarbon group, M is silicon atom or tin atom, X is a halogen atom, a is 0, 1 or 2 and b is 2, 3 or 4, and (b) at least one member selected from the group consisting of a nitro compound; a phosphoryl chloride compound of the formula (1): <CHEM> wherein R<1>, R<2>, R<3> and R<4> are an alkyl group; an aminosilane compound of the formula (2): <CHEM> wherein R<5>, R<6> and R<7> are an alkyl group or an alkoxyl group, R<8> and R<9> are an alkyl group, and n is an integer; an acrylamide compound of the formula (3): <CHEM> wherein R<1><0> is hydrogen atom or methyl group, R<1><1> and R<1><2> are an alkyl group, and m is an integer; and an aminovinylsilane compound of the formula (4): <CHEM> where R<1><3>, R<1><4>, R<1><5>, R<1><6> and R<1><7> are an alkyl group.</p> |
