PROPYLENE-BASED RESIN FOAM PARTICLE AND FOAM PARTICLE MOLDED BODY

摘要

The present invention is a propylene-based resin foam particle which includes a foamed core layer containing (a) a propylene-based resin composition that satisfies (i) and (ii) and a coating layer containing (b) an olefin-based resin that satisfies (iii) or (iv).　(i) A mixture of (a1) 75-98 wt.% of a propylene-based resin having a melting point of 100-140ºC and (a2) 25-2 wt.% of a propylene-based resin having a melting point of 140-165ºC.　(ii) The difference between the melting point of the resin (a2) and that of the resin (a1) is 15ºC or more.　(iii) A crystalline olefin-based resin which has a melting point (TmB) that is lower than the melting point (TmA) of the composition (a), and in which 0ºC < [TmA-TmB] ≤ 80ºC.　(iv) A non-crystalline olefin-based resin which has a softening point (TsB) that is lower than TmA, and in which 0ºC < [TmA-TsB] ≤ 100ºC.