| abstract |
(57) [Summary] [Purpose] The heat treatment reduces the adhesive force on the front surface, but further reduces the adhesive force on the back surface, and barely maintains the adhesive holding power of the article while supporting the carrier such as a conveyor belt. To obtain a foamable double-sided adhesive sheet having adhesive properties such as easier separation. [Structure] The front and back of the sheet by heat treatment (11, 12) 1. A foamable double-sided adhesive sheet having a pressure-sensitive adhesive layer (1) containing a foaming agent, which forms different adhesive strength states in. [Effect] After the sheet on which the article is adhered and held is used for adhesion to the adherend so that the sheet is adhered and fixed to the support, the adhesive force can be reduced to different states by heat treatment, and the sheet is peeled from the support. In this case, the adherends on the front and back sides can be separated at different stages so that the articles can be adhered and held and finally the articles can be easily separated from the sheet without damage. |