A water-dispersed pressure-sensitive adhesive composition includes a water-dispersible polymer and water. The viscosity X (Pa.Math.s) and the dynamic surface tension Y (mN/m) at a life time of 100 milliseconds satisfy the following formulas (1) and (2):

0.15≤X≤1.25  (1)

Y≤19.3X+35  (2)

A water-dispersed pressure-sensitive adhesive composition includes a water-dispersible polymer and water. The viscosity X (Pa.Math.s) and the dynamic surface tension Y (mN/m) at a life time of 100 milliseconds satisfy the following formulas (1) and (2):

0.15≤X≤1.25  (1)

Y≤19.3X+35  (2)

An adhesive film is formed of an adhesive composition that includes a monomer mixture including a hydroxyl group-containing (meth)acrylate and a comonomer, and nanoparticles. The adhesive film has a glass transition temperature (Tg) of about −20° C. or less, an index of refraction of about 1.40 to about 1.55, and a haze of about 3% or less at a thickness of 100 μm.

An adhesive film is formed of an adhesive composition that includes a monomer mixture including a hydroxyl group-containing (meth)acrylate and a comonomer, and nanoparticles. The adhesive film has a glass transition temperature (Tg) of about −20° C. or less, an index of refraction of about 1.40 to about 1.55, and a haze of about 3% or less at a thickness of 100 μm.

The present invention provides a UV-curable pressure-sensitive adhesive composition, comprising: 81 to 97.5 parts of (meth)acrylate polymer having a carboxyl functional group by weight, the amount of the carboxyl functional group in the (meth)acrylate polymer having the carboxyl functional group being equal to or greater than 40 mmol/100 g; 2.5 to 19 parts of an epoxy resin by weight; 0.3 to 6 parts of a polyol by weight; and 0.05 to 5 parts of a photoinitiator by weight. The UV-curable pressure-sensitive adhesive composition has good anti-repulsion. The present invention further provides a UV-curable adhesive tape comprising the UV-curable pressure-sensitive adhesive composition.

The present invention provides a UV-curable pressure-sensitive adhesive composition, comprising: 81 to 97.5 parts of (meth)acrylate polymer having a carboxyl functional group by weight, the amount of the carboxyl functional group in the (meth)acrylate polymer having the carboxyl functional group being equal to or greater than 40 mmol/100 g; 2.5 to 19 parts of an epoxy resin by weight; 0.3 to 6 parts of a polyol by weight; and 0.05 to 5 parts of a photoinitiator by weight. The UV-curable pressure-sensitive adhesive composition has good anti-repulsion. The present invention further provides a UV-curable adhesive tape comprising the UV-curable pressure-sensitive adhesive composition.

A water-dispersed pressure-sensitive adhesive composition of the present invention includes a water-dispersible polymer, a carboxylic acid copolymer thickener, a polyacrylic acid thickener, and water. A ratio of the carboxylic acid copolymer thickener in the solid content of the water-dispersed pressure-sensitive adhesive composition is 0.1% by mass or more and 1.5% by mass or less. A ratio of the polyacrylic acid thickener in the solid content of the adhesive composition is 1% by mass or more and 3.7% by mass or less. A pressure-sensitive adhesive sheet of the present invention has a pressure-sensitive adhesive layer formed from the water-dispersed pressure-sensitive adhesive composition.

A water-dispersed pressure-sensitive adhesive composition of the present invention includes a water-dispersible polymer, a carboxylic acid copolymer thickener, a polyacrylic acid thickener, and water. A ratio of the carboxylic acid copolymer thickener in the solid content of the water-dispersed pressure-sensitive adhesive composition is 0.1% by mass or more and 1.5% by mass or less. A ratio of the polyacrylic acid thickener in the solid content of the adhesive composition is 1% by mass or more and 3.7% by mass or less. A pressure-sensitive adhesive sheet of the present invention has a pressure-sensitive adhesive layer formed from the water-dispersed pressure-sensitive adhesive composition.

The present application relates to a cross-linkable composition. The present application can provide a cross-linkable composition without degradation of cross-linking efficiency while exhibiting conductivity by containing an ionic compound, and its use.

The present application relates to a cross-linkable composition. The present application can provide a cross-linkable composition without degradation of cross-linking efficiency while exhibiting conductivity by containing an ionic compound, and its use.