| abstract |
The present invention relates to polyolefin-based resin foamed particles, which are foamed particles obtained by foaming a composite resin particle composed of a core layer composed of polyolefin resin and a coating layer covering the core layer composed of polyolefin resin.n n n (a) The polyolefin resin constituting the core layer is a crystalline polyolefin resin,n n n (b) The polyolefin resin constituting the coating layer has a melting point (B) lower than the melting point (A) of the polyolefin resin constituting the core layer, and the polyolefin resin constituting the melting layer (B) and the core layer. Softening point (C) lower than melting | fusing point (A) of crystalline polyolefin resin which the temperature difference [(A)-(B)] of melting | fusing point (A) exceeds 0 degreeC and 80 degrees C or less, or the polyolefin resin which comprises a core layer It is amorphous polyolefin resin whose temperature difference [(A)-(C)] of melting | fusing point (A) of the polyolefin resin which comprises the softening point (C) and a core layer exceeds 100 degreeC more than 0 degreeC,n n n (c) It is characterized by including 10 weight% or more and less than 50 weight% of polymeric antistatic agents in the said coating layer. The polyolefin resin foamed particles of the present invention are excellent in antistatic performance, have no change over time of antistatic performance, are not dependent on humidity, are not contaminated with a packaged material, and are mutually compatible with particles during thermoforming. Provided is a foamed molded article having excellent fusion property, good molded body surface, and excellent mechanical properties. |