POLYETHYLENE RESIN FOAMED PARTICLES, POLYETHYLENE RESIN IN-MOLD FOAM-MOLDED ARTICLE, AND PRODUCTION METHODS THEREOF

摘要

Polyethylene resin foamed particles having a storage elastic modulus of 900 Pa or more and 5000 Pa or less at an angular frequency of 1 rad/second, and the storage elastic modulus is 100000 Pa or less at an angular frequency of 100 rad/second. The storage elastic modulus is obtained in a dynamic viscoelasticity measurement of the a polyethylene resin particles at 190° C. The polyethylene resin foamed particles also have a DSC curve obtained from a differential scanning calorimetry (DSC) at a temperature rising speed of 10° C./minute within a range of 20° C. to 220° C. The DSC curve has two melting peaks of a melting peak on a low temperature side and a melting peak on a high temperature side.

主权项

1. Polyethylene resin foamed particles comprising,
a storage elastic modulus of 900 Pa or more and 5000 Pa or less at an angular frequency of 1 rad/second and a storage elastic modulus of 100000 Pa or less at an angular frequency of 100 rad/second in a dynamic viscoelasticity measurement of a polyethylene resin particles at 190° C.; and a DSC curve for the polyethylene resin foamed particles obtained by a differential scanning calorimetry (DSC) at a temperature rising speed of 10° C./minute within a range of 20° C. to 220° C. and having two melting peaks of a melting peak on a low temperature side and a melting peak on a high temperature side.