Adhesive, adhesive layer, and adhesive sheet
AssigneeNitto Denko Corporation
InventorsMasatsugu Higashi, Kiyoe Shigetomi, Koji Shitara, Akiko Tanaka, Katsuhiko Kamiya, Azusa Iseki
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Abstract
A pressure-sensitive adhesive of the invention include a (meth)acryl-based polymer obtained by polymerization of a monomer component including 30 to 99.5% by weight of an alkyl (meth)acrylate having an alkyl group of 10 to 18 carbon atoms at an ester end and 0.5 to 50% by weight of a cyclic nitrogen-containing monomer. The pressure-sensitive adhesive has a satisfactory level of adhesive performance and can form a pressure-sensitive adhesive layer with a lower dielectric constant and reliable moisture resistance.
Claims16
A pressure-sensitive adhesive, comprising a (meth)acryl-based polymer obtained by solution polymerization or radiation polymerization of a monomer component including 30 to 99.5% by weight of an alkyl (meth)acrylate having a branched alkyl group of 14 to 18 carbon atoms at an ester end, 0.5 to 50% by weight of a cyclic nitrogen-containing monomer and 0.5 to 49% by weight of an alkyl (meth)acrylate having an alkyl group of 1 to 9 carbon atoms at an ester end,
- wherein the alkyl (meth)acrylate having a branched alkyl group of 14 to 18 carbon atoms at an ester end is a t-butyl group included isostearyl acrylate represented by the following formula:
Dependencies are inferred from the claim text.