An adhesive sheet utilizes an acrylic resin composition without using a separate primer layer, thus providing excellent adhesion, high reliability due to its excellent light resistance under the sunlight exposure, and excellent elastic modulus, and can be easily used as an adhesive material in various fields such as building materials and automobiles.

A reinforcing film comprises a pressure sensitive adhesive layer laminated and fixed on a principal surface of a film substrate. The pressure sensitive adhesive layer is formed of a photocurable composition containing a photocurable agent and a base polymer having a crosslinked structure. A frictional force of the pressure sensitive adhesive layer measured with a frictional force microscope at a frequency of 5 Hz is preferably 2 to 5 times a frictional force at a frequency of 0.1 Hz. After photocuring of the pressure sensitive adhesive layer, a frictional force of a photocured pressure sensitive adhesive layer measured with the frictional force microscope at a frequency of 5 Hz is preferably not less than 5 times a frictional force measured at a frequency of 0.1 Hz.

The present disclosure relates to a precursor composition of a pressure sensitive adhesive comprising: a) a (co)polymeric base component having a weight-average molecular weight (M.sub.w) no greater than 500,000 g/mol and comprising at least one reactive functional group (X); and b) a multi-functional oligomeric branching compound comprising an oligomer backbone and having a weight-average molecular weight (M.sub.w) greater than 250 g/mol, wherein the multi-functional oligomeric branching compound comprises at least two complementary reactive functional groups (Y) which are capable of chemically reacting with the at least one reactive functional group (X) of the (co)polymeric base component.

The present disclosure relates to a precursor composition of a pressure sensitive adhesive comprising: a) a (co)polymeric base component having a weight-average molecular weight (M.sub.w) no greater than 500,000 g/mol and comprising at least one reactive functional group (X); and b) a multi-functional oligomeric branching compound comprising an oligomer backbone and having a weight-average molecular weight (M.sub.w) greater than 250 g/mol, wherein the multi-functional oligomeric branching compound comprises at least two complementary reactive functional groups (Y) which are capable of chemically reacting with the at least one reactive functional group (X) of the (co)polymeric base component.

Provided is a silicone adsorption film that excels in both adsorption to a smooth surface and the suppression of remnants of glue on the smooth surface after detachment. The silicone adsorption film comprises a base material layer and a silicone adsorption layer laminated on the base material layer. The silicone adsorption layer is a cured product of a crosslinkable composition containing (a) a crosslinkable organopolysiloxane, (b) a crosslinking agent, (c) a non-reactive MQ resin and (d) a reactive MQ resin. The silicone adsorption film excels in both adsorption to a smooth surface and the suppression of remnants of glue on the smooth surface after detachment.

The present application relates to a pressure-sensitive adhesive composition and a use thereof. The polarizing plate to which the pressure-sensitive adhesive composition of the present application is applied has an advantage that the performance capable of blocking the blue light, for example, the light having a wavelength region of 380 nm or more, is particularly excellent, when attached to an organic light emitting panel, especially, an organic light emitting panel comprising a plastic substrate.

The present application relates to a pressure-sensitive adhesive composition and a use thereof. The polarizing plate to which the pressure-sensitive adhesive composition of the present application is applied has an advantage that the performance capable of blocking the blue light, for example, the light having a wavelength region of 380 nm or more, is particularly excellent, when attached to an organic light emitting panel, especially, an organic light emitting panel comprising a plastic substrate.

Disclosed are a UV curable adhesive composition, an adhesive tape comprising the UV curable adhesive composition, an adhesive film formed by UV curing of the adhesive composition, and a corresponding bonding member. The UV curable adhesive composition and the adhesive tape comprising the UV curable adhesive composition have a hybrid system of reactive polyacrylate/epoxy resin/core-shell rubber particles/hydroxy-containing compound, wherein a cationic photoinitiator is used to initiate curing of the epoxy a resin.

Disclosed are a UV curable adhesive composition, an adhesive tape comprising the UV curable adhesive composition, an adhesive film formed by UV curing of the adhesive composition, and a corresponding bonding member. The UV curable adhesive composition and the adhesive tape comprising the UV curable adhesive composition have a hybrid system of reactive polyacrylate/epoxy resin/core-shell rubber particles/hydroxy-containing compound, wherein a cationic photoinitiator is used to initiate curing of the epoxy a resin.

A (meth)acrylic adhesive film, an optical member including the same, and an optical display apparatus including the same are provided. The (meth)acrylic adhesive film includes organic particles, and further includes greater than 0 wt % to 5 wt % of inorganic particles. The (meth)acrylic adhesive film has a haze of 1% or less and an initial dent formation height of 4.5 cm or more.