Patent ID: 10717907

Abstract:
The present invention provides a photo-curable adhesive composition for display panel assembly comprising a) at least one polyurethane acrylate having Tg value from −70 to 20° C.; b) at least one (meth)acrylate monomer; c) at least one chain transfer agent; d) at least two thixotropy agents, wherein first thixotropy agent is selected from the group consisting of hydrophobic fumed silica, hydrophilic fumed silica and mixtures thereof and second thixotropy agent is selected from the group consisting of modified urea, polyhydroxycarboxylic acid esters and mixtures thereof; e) at least one photoinitiator; f) at least one plasticizer; and g) at least one defoamer. The photo-curable adhesive composition according to the present invention can be used in bonding two transparent substrates together or in bonding one transparent substrate and one opaque substrate together. Furthermore, the composition according to the present invention can be used in a process of making an optical assembly.