Protective film
AssigneeNitto Denko Corporation
InventorsTsuyoshi Inoue, Kazuhito Okumura, Hiroshi Yada
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Abstract
A protective film contains a base material and a pressure-sensitive adhesive layer formed thereon, wherein the surface of the pressure-sensitive adhesive layer has a contact angle with methylene iodide as measured just after contact, θ1, of 70° or smaller and a change in contact angle with methylene iodide through 30-second standing, Δθ, of 8% or less.
Claims9
A protective film comprising a base material and a pressure-sensitive adhesive layer formed thereon, wherein the surface of the pressure-sensitive adhesive layer has a contact angle with methylene iodide as measured just after contact, θ1, of 70° or smaller and a change in contact angle with methylene iodide through 30-second standing, Δθ, of 8% or less.
Dependencies are inferred from the claim text.