Adhesive sheet
AssigneeLintec Corporation
InventorsToshiaki Nagasawa, Ayaka Seto, Kenta Yamazaki, Shinya Suzuki
Life of this patent
Estimating the term…
Abstract
A pressure sensitive adhesive sheet may include a base material and a hot-melt pressure sensitive adhesive layer which contains a softener, and further include a barrier layer disposed between the base material and the hot-melt pressure sensitive adhesive layer, the barrier layer containing at least one selected from the group consisting of a polyester-based resin, a polyurethane-based resin, and a polyolefin-based resin. The polyester-based resin may be at least one of a polyester resin or a modified polyester resin.
Claims9
A pressure sensitive adhesive sheet comprising a base material and a hot-melt pressure sensitive adhesive layer containing a softener, the pressure sensitive adhesive sheet further comprising a barrier layer disposed between the base material and the hot-melt pressure sensitive adhesive layer, the barrier layer comprising at least one selected from the group consisting of a polyester-based resin and a polyurethane-based resin,
- wherein the polyester-based resin is at least one of a polyester resin or a modified polyester resin,
- wherein a total content of the polyester-based resin and/or the polyurethane-based resin in the barrier layer is at least 80 mass %,
- wherein the hot-melt pressure sensitive adhesive layer is a layer comprising a rubber and a tackifier.
Dependencies are inferred from the claim text.