Photocurable composition
AssigneeThreebond Co., Ltd.
InventorsKazuyuki Ueno, Yoshihide Arai, Yoshiaki Koga
Life of this patent
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Abstract
Conventionally, a photocurable composition to which an ultraviolet absorber is added is difficult to form a colorless and transparent cured resin because the ultraviolet absorber itself is colored, and thus the photocurable composition is hardly to be used in a display apparatus required for colorlessness and transparency. Provided is a photocurable composition including a specific compound, wherein a light transmittance of 385 nm is 50% or less and a yellowness index is 3.0 or less in a state in which a cured resin having a thickness of 200 μm or less is interposed between alkali free glass plates each having a thickness of 0.7 mm.
Claims16
A photocurable composition comprising a compound of the following General Formula 1 or 2-(2′-hydroxy-3′-tert-butyl-5′-methylphenyl)-5-chlorobenzotriazole as a component (A),
- a (meth)acrylate compound as a component (B);
- a film-forming resin as a component (C);
- and
- a photoinitiator as a component (D),
- wherein a light transmittance of 385 nm is 50% or less and a yellowness index is 3.0 or less in a state in which a cured resin of the photocurable composition with a thickness of 200 μm or less is interposed between alkali free glass plates each having a thickness of 0.7 mm:
- n is an integer of 1 to 4, R is a hydrocarbon group having a total number of carbon atoms of 6 or more, and hydrogen in a main skeleton of the compound may be substituted with another organic group, where a multimer is excluded.
Dependencies are inferred from the claim text.