Provided are a composition including a monomer, a photoinitiator, and a cross-linking agent, the composition having a viscosity suitable for inkjet coating at room temperature, wherein a polymer produced through cross-linking of the compound has a modulus value at 60° C. (G′.sub.60° C.) of about 20 KPa to about 70 KPa; a method of producing a polymer using the composition; and a polymer produced using the production method.

A resin composition includes a (meth) acrylate oligomer, and an oxygen inhibition preventing agent including at least one of a phosphite compound having a boiling point of about 150° C. or higher, and a phosphine compound having a boiling point of about 150° C. or higher, wherein the oxygen inhibition preventing agent is included in an amount of about 0.1 wt % or more and less than about 1 wt % with respect to a total amount of a (meth)acrylate. An adhesive member formed by photocuring the resin composition exhibits excellent adhesion at high temperatures, and may thus exhibit excellent reliability in case used in a flexible display device.

A resin composition includes a (meth) acrylate oligomer, and an oxygen inhibition preventing agent including at least one of a phosphite compound having a boiling point of about 150° C. or higher, and a phosphine compound having a boiling point of about 150° C. or higher, wherein the oxygen inhibition preventing agent is included in an amount of about 0.1 wt % or more and less than about 1 wt % with respect to a total amount of a (meth)acrylate. An adhesive member formed by photocuring the resin composition exhibits excellent adhesion at high temperatures, and may thus exhibit excellent reliability in case used in a flexible display device.

A display apparatus includes a display panel, a cover window above the display panel, and an adhesive layer between the display panel and the cover window. The adhesive layer includes: (meth)acrylate having an alicyclic group, (meth)acrylate having a glass transition temperature of about 40° C. or less, cross-linkable (meth)acrylate, and a thermal curing agent including an isocyanate-based compound. The adhesive composition has a first elastic modulus at a first temperature and a second elastic modulus at a second temperature greater than the first temperature, and the second elastic modulus is equal to or greater than the first elastic modulus.

A display apparatus includes a display panel, a cover window above the display panel, and an adhesive layer between the display panel and the cover window. The adhesive layer includes: (meth)acrylate having an alicyclic group, (meth)acrylate having a glass transition temperature of about 40° C. or less, cross-linkable (meth)acrylate, and a thermal curing agent including an isocyanate-based compound. The adhesive composition has a first elastic modulus at a first temperature and a second elastic modulus at a second temperature greater than the first temperature, and the second elastic modulus is equal to or greater than the first elastic modulus.

The present invention relates to a curable cyanoacrylate composition comprising (i) at least one cyanoacrylate monomer, and (ii) at least one free radical stabilizer, wherein the free radical stabilizer is non-hazardous and shows good compatibility to the cyanoacrylate but does not impair the reactivity of the cyanoacrylate and its performance after curing.

The present invention relates to a curable cyanoacrylate composition comprising (i) at least one cyanoacrylate monomer, and (ii) at least one free radical stabilizer, wherein the free radical stabilizer is non-hazardous and shows good compatibility to the cyanoacrylate but does not impair the reactivity of the cyanoacrylate and its performance after curing.

A composition that cures when exposed to actinic radiation. In some embodiments the curable adhesive composition comprises: a) one or more radiation curable oligomers or prepolymers terminally having at least one carbon-carbon double bond-containing group; b) one or more diluent monomer components containing at least one polymerizable group; c) optionally one or more adhesion promoting additives of an organic or inorganic acid acrylic monomer; and optionally one or more rheological modifiers; one or more plasticizers and; one or more additives. The curable composition can be used in an adhesive that structurally bonds many substrates including dissimilar substrates. In some embodiments cured reaction products of the composition have a broad service temperature range from 20 to 120 C. Cured reaction products of this embodiment will exhibit greater than 50% cohesive failure in this temperature range. The cured composition will retain adhesive strength at temperatures above its Tg.

A composition that cures when exposed to actinic radiation. In some embodiments the curable adhesive composition comprises: a) one or more radiation curable oligomers or prepolymers terminally having at least one carbon-carbon double bond-containing group; b) one or more diluent monomer components containing at least one polymerizable group; c) optionally one or more adhesion promoting additives of an organic or inorganic acid acrylic monomer; and optionally one or more rheological modifiers; one or more plasticizers and; one or more additives. The curable composition can be used in an adhesive that structurally bonds many substrates including dissimilar substrates. In some embodiments cured reaction products of the composition have a broad service temperature range from 20 to 120 C. Cured reaction products of this embodiment will exhibit greater than 50% cohesive failure in this temperature range. The cured composition will retain adhesive strength at temperatures above its Tg.

Cure in place pressure sensitive adhesive compositions are described that comprise one or more of a bodying component, a structural diluent, a radical diluent as well as additives such as crosslinkers, external catalysts, photoinitiators and stabilizers/process aids. The bodying component can be acrylic or non-acrylic.