| 摘要 |
To provide a coating composition capable of forming an acrylic hard coat film that is excellent in adhesion to an antireflection film while having high scratch resistance, and an optical member having a hard coat film that is obtained by using the coating composition. A coating composition containing (A) an acrylate component and (B) zirconia, wherein a mass ratio (B)/(A) of (B) the zirconia to (A) the acrylate component is from 0.1 to 2.0, (A) the acrylate component contains the following components (a-1), (a-2) and (a-3), and a content ratio X of the component (a-1), a content ratio Y of the component (a-2) and a content ratio Z of the component (a-3) satisfies the following conditions (1) and (2), and an optical member having a hard coat film that is obtained by using the coating composition: (a-1): a polyfunctional acrylate compound having 3 or more acrylate groups in one molecule; (a-2): a dendritic aliphatic compound having an acrylate group at an end thereof; and (a-3): an acrylate compound having 1 or 2 acrylate groups in one molecule; or a mixture of an acrylate compound having 1 or 2 acrylate groups in one molecule and an acrylate compound other than the components (a-1) and (a-2), the condition (1): in (A) the acrylate component, X is from 40 to 60% by mass, and a total of Y and Z is from 60 to 40% by mass, and the condition (2): in the total of Y and Z, Z is 0% by mass or more and less than 100% by mass. |
