| 摘要 |
PROBLEM TO BE SOLVED: To provide a propylene resin composition for a deformation-recovering heat-resistant structure that has excellent deformation-recovering property at high temperature and has heat resistance, and a deformation-recovering heat-resistant structure.SOLUTION: The propylene resin composition for a deformation-recovering heat-resistant structure essentially comprises a propylene resin composition (X) comprising 2 to 50 parts by weight of a component (A), 1 to 97 parts by weight of a component (B), and 1 to 49 parts by weight of a component (C) described below, and satisfies characteristics (y1) and (y2) described below. The resin composition has (y1) a MFR of 1.0 to 100 g/10 min and (y2) a melt peak temperature of 130 to 170°C. The components are: (A) at least one propylene-α-olefin copolymer satisfying that the copolymer has (a1) a melt peak temperature of 121 to 145 and (a2) a MFR of 0.1 to 500 g/10 minutes; (B) a propylene-α-olefin copolymer satisfying that (b1) the copolymer comprises 51 to 90 wt.% of propylene and 10 to 49 wt.% of ethylene and/or α-olefin having 4 to 10 carbon atoms; and (C) a propylene single polymer satisfying that the single polymer has (c1) a melt peak temperature of 146 to 170°C and (c2) a MFR of 0.1 to 500 g/10 min.SELECTED DRAWING: None |
