Preparation of stable, photocurable resin composition for hydrolytically stable, optically clear film for flexible display applications

An optically clear resin composition, wherein a monomer mixture undergoes orthogonal reactions to form one or more highly functional comonomers and after which another reaction occurs to form thermoset networks containing polyurethane and polysulfide segments.

An optical film, formed by the actinic radiation curing of a photocurable resin comprising:

• a polyfunctional thiol monomer comprising 3 or more thiol functional groups, a polyfunctional ene monomer comprising 4 or more vinyl/allyl functional groups, a polyfunctional acrylate monomer comprising 2 or more acryloyl functional groups, a photo- initiator present in a concentration of about 1 parts per hundred or less, a sterically hindered phenolic antioxidant present in a concentration of about 5 parts per hundred or less.

A display film comprising:

• an optical film formed by curing a photocurable resin, wherein the photocurable resin comprises:
• a polyfunctional thiol monomer comprising 3 or more thiol functional groups, a polyfunctional ene monomer comprising 4 or more vinyl/allyl functional groups, a polyfunctional acrylate monomer comprising 2 or more acryloyl functional groups, a photo-initiator present in a concentration of about 1 parts per hundred or less, a sterically hindered phenolic antioxidant present in a concentration of about 5 parts per hundred or less.