| 摘要 |
PROBLEM TO BE SOLVED: To provide a modified propylenic polymer composition capable of suppressing, by abating olefin contents, prospects of molding instabilities attributed to gel formation such as the generation of fish eyes, viscosity gain, etc.SOLUTION: The provided modified propylenic polymer composition includes, as a main component, a terminal-modified propylenic polymer including a modifying group and including a constituent unit expressed by the following (2): (in the formula, Rexpresses a hydrogen atom or aliphatic hydrocarbon group having at least 1 and 4 or fewer carbon atoms); another version of the polymer composition is a modified propylenic polymer composition including, as a main component, a terminal-modified propylenic polymer having a number-average molecular weight of 52,000 or above and 1,000,000 or below wherein the ratio, with respect to all intramolecular modifying groups, of modifying groups coupled with one molecule terminal is 60% or above and 100% or below. |
