Acrylic pressure-sensitive adhesive tape
AssigneeNitto Denko Corporation
InventorsHirofumi Katami, Takahiro Nonaka
Life of this patent
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Abstract
An acrylic pressure-sensitive adhesive tape including an acrylic pressure-sensitive adhesive layer, wherein a 180° peel adhesive force of the acrylic pressure-sensitive adhesive tape to a glass plate is 10 N/20 mm or more and a 180° peel adhesive force of the acrylic pressure-sensitive adhesive tape to an acrylic plate is 10 N/20 mm or more. The acrylic pressure-sensitive adhesive layer contains an acrylic polymer (A), has a gel fraction of 65% or more, and has a 300% tensile residual stress of from 7 to 16 N/cm2.
Claims4
An acrylic pressure-sensitive adhesive tape comprising an acrylic pressure-sensitive adhesive layer, wherein
- a 180° peel adhesive force of the acrylic pressure-sensitive adhesive tape to a glass plate is 10 N/20 mm or more,
- a 180° peel adhesive force of the acrylic pressure-sensitive adhesive tape to an acrylic plate is 10 N/20 mm or more,
- the acrylic pressure-sensitive adhesive layer contains an acrylic polymer (A) and an acrylic polymer (B) having a weight average molecular weight of from 1,000 to 30,000,
- the acrylic polymer (B) comprises, as a monomer component, a (meth)acrylic acid ester having a tri- or multi-cyclic aliphatic hydrocarbon in a molecule thereof,
- the acrylic pressure-sensitive adhesive layer has a gel fraction of 65% or more, and
- the acrylic pressure-sensitive adhesive layer has a 300% tensile residual stress of from 7 to 16 N/cm2.
Dependencies are inferred from the claim text.