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|1. (WO2018124204) HARD COAT LAYER-FORMING COMPOSITION AND EYEGLASS LENS|
|Title:||HARD COAT LAYER-FORMING COMPOSITION AND EYEGLASS LENS|
Provided is a hard coat layer-forming composition with which it is possible to form a hard coat layer that has excellent abrasion resistance and causes little change in shape to the surface of a substrate on which the hard coat layer is disposed. This hard coat layer-forming composition is used for forming a hard coat layer on a substrate, and comprises a compound having multiple epoxy groups, a silsesquioxane compound having an oxetanyl group, a photo cationic polymerization initiator, and a thermal cationic polymerization initiator, wherein the contained amount of the silsesquioxane compound having an oxetanyl group exceeds 70 mass% with respect to the total mass of: the compound having multiple epoxy groups; and the silsesquioxane compound having an oxetanyl group.