| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a polyolefin-based polymer material excellent in damping properties, and a damping material comprising the polymer material. <P>SOLUTION: This polymer composition has a content of the following polymer (A) of 25-90 wt.% and a content of the following polymer (B) of 10-75 wt.%. Polymer (A) is a copolymer of ethylene and the following vinyl compound (X) in which the content (ma) of monomer units based on the vinyl compound (X) is 5-45 mol%. Polymer (B) is a copolymer of ethylene and the following vinyl compound (X) in which the content (mb) of monomer units based on the vinyl compound (X) is 15-55 mol%, and which fulfills formula: 10≤mb-ma≤50. The vinyl compound (X) is the one represented by general formula (I), wherein R represents an aliphatic hydrocarbon group or an alicyclic hydrocarbon group in which a carbon atom bonding to the vinyl group is a quaternary carbon atom or a tertiary carbon atom. <P>COPYRIGHT: (C)2012,JPO&INPIT |
