申请人:SUMITOMO CHEMICAL COMPANY, LIMITED
公开号:EP0341496A2
公开(公告)日:1989-11-15
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):
wherein R¹, R², R³ and R⁴ are an alkyl group; an aminosilane compound of the formula (2):
wherein R⁵, R⁶ and R⁷ are an alkyl group or an alkoxyl group, R⁸ and R⁹ are an alkyl group, and n is an integer; an acrylamide compound of the formula (3):
wherein R¹⁰ is hydrogen atom or methyl group, R¹¹ and R¹² are an alkyl group, and m is an integer; and an aminovinylsilane compound of the formula (4):
where R¹³, R¹⁴, R¹⁵, R¹⁶ and R¹⁷ are an alkyl group.
一种制备改性二烯聚合物橡胶的工艺,该橡胶具有更高的冲击回弹性、更低的低温硬度和更好的可加工性,可用作汽车轮胎和其他工业的橡胶材料,该工艺包括生产具有碱金属末端的共轭二烯聚合物,并使含碱金属的聚合物与(a)式中的硅或锡化合物反应:其中 R 为烷基、烯基、环烯基或芳香烃基,M 为硅原子或锡原子,X 为卤素原子,a 为 0、1 或 2,b 为 2、3 或 4,以及 (b) 至少一种选自以下组成的成员:硝基化合物;式 (1) 的磷酰氯化合物:
其中 R¹、R²、R³ 和 R⁴ 是烷基;式 (2) 的氨基硅烷化合物:
其中 R⁵、R⁶ 和 R⁷ 是烷基或烷氧基,R⁸ 和 R𠞙 是烷基,且 n 是整数;式(3)的丙烯酰胺化合物:
其中 R¹⁰ 是氢原子或甲基,R¹¹ 和 R¹² 是烷基,m 是整数;以及式(4)的氨基乙烯基硅烷化合物:
其中 R¹³、R¹⁴、R¹⁵、R¹⁶ 和 R¹⁷ 是烷基。