POLYMER COMPOSITION, CROSS-LINKED PRODUCT, AND TIRE

This polymer composition contains: a modified conjugated diene polymer having at least one nitrogen-containing functional group selected from the group consisting of primary amino groups, secondary amino groups, tertiary amino groups, primary amino groups being protected or converted into an onium, secondary amino groups being protected or converted into an onium, and tertiary amino groups converted into an onium; and a functional group-containing polymer having at least one functional group selected from the group consisting of an epoxy group, acid anhydride structures, an oxazoline group, a hydroxy group, a carboxyl group, and a sulfo group. 聚合物组合物含有：改性共轭二烯系聚合物，具有选自由一级氨基、二级氨基、三级氨基、经鎓化或保护的一级氨基、经鎓化或保护的二级氨基、及经鎓化的三级氨基所组成的群组中的至少一种含氮的官能基；以及含官能基的聚合物，具有选自由环氧基、酸酐结构、恶唑啉基、羟基、羧基及磺基所组成的群组中的至少一种官能基。