PRIMER TREATMENT METHOD OF POLYOLEFIN-BASED RESIN FOAMED SHEET

摘要

PROBLEM TO BE SOLVED: To provide a primer treatment method of polyolefin-based foamed sheet suitable for obtaining a polyolefin-based foamed sheet which hardly causes deformation due to heat even when it is coated with a hot melt adhesive and shows excellent heat reactivation to achieve excellent adhesion to, for example, a metal roof and the like. SOLUTION: The primer treatment method of polyolefin-based foamed sheet comprises a step of coating a raw polyolefin-based foamable resin sheet containing a polyolefin-based resin as a major component with a styrene- butadiene-styrene block copolymer-based hot melt adhesive and a step of heating and foaming the raw foamable sheet.