Protective sheet and protective sheet with pressure sensitive adhesive layer
AssigneeLintec Corporation
InventorsYuka FUJII, Yoichi TAKAHASHI, Daiki FUKUDA
Life of this patent
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Abstract
Protective sheet includes a base material and a coat layer. The protective sheet has a tensile elongation of 60% or more at which the base material does not break but the coat layer cracks when the protective sheet is stretched at a width of 15 mm, a measurement length of 50 mm, and a tensile speed of 200 mm/min in an environment of 23° C. and 50% RH. The protective sheet has an indentation stress of 1 N or more and 8.8 N or less when a surface of the protective sheet or a laminate including the protective sheet on the coat layer side is indented to a depth of 100 μm at a speed of 0.01 mm/sec over an area of 5 mmφ.
Claims12
A protective sheet comprising a base material and a coat layer,
- the protective sheet having a tensile elongation of 60% or more at which the base material does not break but the coat layer cracks when the protective sheet is stretched at a width of 15 mm, a measurement length of 50 mm, and a tensile speed of 200 mm/min in an environment of 23° C. and 50% RH,
- the protective sheet having an indentation stress of 1 N or more and 8.8 N or less when a surface of the protective sheet or a laminate including the protective sheet on the coat layer side is indented to a depth of 100 μm at a speed of 0.01 mm/sec over an area of 5 mmφ.
Dependencies are inferred from the claim text.