Radical Polymerizable Composition for Plastic Lens Adhesiveness

The patent uses a composite resin composition containing both a fluorene skeleton compound (for high refractive index) and an aromatic ring-containing compound with specific functional groups (for adhesiveness). This composite approach allows the material to simultaneously achieve high refractive index and good adhesiveness to plastic film substrates, resolving the contradiction between optical properties and bonding performance.

The patent changes the chemical parameters of the adhesive component by using an aromatic ring-containing compound with specific functional groups (such as hydroxyl groups, carboxyl groups, or amine groups) instead of conventional additives like ortho-phenylphenoxyethyl acrylate. This parameter change enables the composition to maintain both good initial adhesiveness and excellent storage stability under high-temperature and high-humidity conditions.

The patent applies local quality by having different molecular components serve different functions: the base resin provides low viscosity for complete die cavity filling, while the aromatic ring-containing compound with specific functional groups localized at appropriate concentrations provides the necessary adhesiveness to the substrate. This spatial and functional differentiation resolves the contradiction between flow properties and bonding performance.