POLYETHYLENE-BASED RESIN PRE-EXPANDED BEAD HAVING ANTISTATICITY AND ITS FOAMED-IN-PLACE MOLDED PRODUCT

摘要

PROBLEM TO BE SOLVED: To obtain a polyethylene-based resin foamed-in-place molded product having good antistaticity (surface resistivity of <1×1012Ω/(square)) without polluting a half mirror, etc., in optical system components. SOLUTION: This foamed-in-place molded product is obtained from a polyethylene-based resin pre-expanded bead containing 0.3-3 wt.% of a fatty acid glyceryl ester having >=3 and <4 HLB (hydrophilic-lipophilic balance) value and 35-75 deg.C melting point.