PRESSURE-SENSITIVE-ADHESIVE FILM FOR PROTECTION

摘要

PROBLEM TO BE SOLVED: To provide a pressure-sensitive adhesive film for protection being less in the involvement of bubbles at the time of pasting and having good wettability by using a cheap acrylic adhesive and without using an expensive silicone adhesive.

SOLUTION: The involvement of bubbles can be reduced even in sticking such as manual sticking by setting (a peeling speed of an adhesive layer)-(a characteristic speed (V*) which specifies the beginning of rising of peeling force obtained from a peeling curve) to a high value of 3μm/s since a motion speed of an acrylic copolymer molecular chain in an adhesive layer is improved and the acrylic copolymer molecular chain in the adhesive layer can suitably follow to attachment behavior of protecting adhesive film when a protection adhesive film sticks to an adhesion object.

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