DOUBLE-SIDED ADHESIVE TAPE OR SHEET FOR DIE-CUTTING

摘要

PURPOSE: To reduce the flow of a pressure-sensitive adhesive layer provisionally bonded to a separator to thereby obtain a double-sided tape or sheet suited for die-cutting by using a specific pressure-sensitive adhesive to form the layer. ;CONSTITUTION: This tape or sheet comprises a separator (e.g. one obtained by applying a silicone resin on paper and drying the resin) and, provisionally bonded thereto, a layer of a pressure-sensitive adhesive which consists mainly of a styrene-butadiene-styrene block copolymer having a styrene content of preferably about 20-60mol% and has a modulus of 40-120g/mm² (e.g. one comprising the copolymer, a polyterpene resin, and a naphthenic process oil).;COPYRIGHT: (C)1993,JPO&Japio