| 摘要 |
PROBLEM TO BE SOLVED: To provide 1,2-polybutadiene or its composition which has a specific glass transition temperature and has more excellent cold resistance, cold impact resistance and abrasion resistance than those of conventional 1,2-polybutadiene having the same glass transition temperature, and to provide a molded article produced by molding or molding and cross-linking the 1,2-polybutadiene or its composition. SOLUTION: This thermoplastic polymer or its composition comprises (A) 100 to 10 pts. wt. of 1,2-polybutadiene having a glass transition temperature (Tg) of -50 to -10°C and (B) 0 to 90 pts. wt. [(A)+(B)=100 pts. wt.] of a thermoplastic polymer except the component (A). COPYRIGHT: (C)2005,JPO&NCIPI
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