Release film for part with pressure-sensitive adhesive attached
AssigneeMinnesota Mining and Manufacturing Company
InventorsKiyoshi Ogata, Shinobu Sato
Life of this patent
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Abstract
A release film for a part with a pressure-sensitive adhesive attached to the part, in which the part with a pressure-sensitive adhesive attached has adequate adhesion to the release film within the temperature range from normal temperature to a low atmospheric temperature in the winter season is provided. A release film for a part with a pressure-sensitive adhesive attached to the part, which has a pressure-sensitive adhesive layer with a Tg value ranging from -50.degree. C. to -20.degree. C. and a thickness ranging from 3 .mu.m to 50 .mu.m, on a base material, is provided.
Claims5
A structure comprising (i) a part with a first pressure-sensitive adhesive attached to the part and (ii) a release film comprising a second pressure-sensitive adhesive on a base material, wherein said part and said release film are attached by their corresponding pressure-sensitive adhesive layers, wherein said pressure-sensitive adhesive layer on the base material has a Tg value ranging from -50.degree. C. to -20.degree. C. and a thickness ranging from 3 .mu.m to 50 .mu.m and wherein the adhesion value between the pressure-sensitive adhesive on the base material and the pressure-sensitive adhesive attached to the part is within the range between 10 and 400 g/25 mm.
Dependencies are inferred from the claim text.