表面保护用黏着片及表面保护用黏着片之使用方法;PRESSURE-SENSITIVE ADHESIVE SHEET FOR SURFACE PROTECTION AND METHOD OF USING THE SAME

摘要

本发明之课题在于提供几乎不需外力即能容易贴附于电子机器表面，且，能轻易重贴之表面保护用黏着片。;其解决手段为一种表面保护用黏着片，其系于基材之单面具备由黏着剂组成物之硬化物所构成之黏着剂层之表面保护用黏着片，其特征为黏着剂组成物系至少包含(A)成分之末端矽基聚合物、(B)成分之矽烷耦合剂、及(C)成分之硬化触媒，其中(A)成分之末端矽基聚合物系具有规定之构造，且，在包含(D)成分之黏着赋予树脂时，相对于(A)成分之末端矽基聚合物100重量份，将该黏着赋予树脂之调配量作成未满10重量份，或不包含黏着赋予树脂。;Thus, the present invention is directed to a pressure-sensitive adhesive sheet for surface protection, wherein the sheet has a pressure-sensitive adhesive layer comprising cured products of a pressure-sensitive adhesive composition on one surface of a substrate, the pressure-sensitive adhesive composition including at least (A) a polymer having a silyl end group, (B) a silane coupling agent, and (C) a curing catalyst, (A) a polymer having a silyl end group having a predetermined structre, and a blending amount of (D) as a tackifier resin being set to a value under 10 parts by weight relative to 100 parts by weight, an amount of (A) a polymer having silyl end group if the pressure-sensitive adhesive composition contains the tackifiler resin or not.