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AssigneeNitto Denko Corporation
InventorsHirofumi Katami, Takahiro Nonaka, Hiroaki Kishioka
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Provided are an optical component capable of suppressing the occurrence of undulations, having an excellent corrosion inhibition effect while maintaining a high level of adhesion reliability and transparency, as well as a pressure-sensitive adhesive layer and a pressure-sensitive adhesive sheet that can produce such an optical component efficiently and at a low cost. The present invention provides an optical pressure-sensitive adhesive layer comprising a base polymer and a rust inhibitor, characterized in that the base polymer does not or substantially does not contain an acid group-containing monomer as a constituent monomer component, and that an 85° C. modulus of elasticity is not less than 5.0×104 Pa.
An optical pressure-sensitive adhesive layer comprising a base polymer and a rust inhibitor, characterized in that the base polymer does not or substantially does not contain an acid group-containing monomer as a constituent monomer component, and that an 85° C. modulus of elasticity is not less than 5.0×104 Pa.
An optical pressure-sensitive adhesive layer comprising an acrylic polymer (A) and a rust inhibitor, characterized in that the acrylic polymer (A) does not or substantially does not contain a carboxyl group-containing monomer as a constituent monomer component, and that an 85° C. modulus of elasticity is not less than 5.0×104 Pa.
Dependencies are inferred from the claim text.