An object of the present invention is to provide a pressure-sensitive adhesive sheet enables a pressure-sensitive adhesive layer to be formed, wherein the pressure-sensitive adhesive layer has a low dielectric constant, is excellent in level difference conformability while maintaining adhesive strength and adhesion reliability at high temperatures, and suitable for laminating a metal mesh film and the like. The pressure-sensitive adhesive sheet of the present invention is a pressure-sensitive adhesive sheet having a pressure-sensitive adhesive layer, the pressure-sensitive adhesive layer containing an acrylic polymer (A) and a hydrogenated polyolefinic resin (B) that exhibits liquid flowability at 25° C. The pressure-sensitive adhesive layer has a dielectric constant at a frequency of 1 MHz of from 2.3 to 3.5. The pressure-sensitive adhesive sheet has a 180° peel adhesive strength to a glass plate at a tensile speed of 300 mm/minute at 65° C. of 6 N/20 mm or more. In the pressure-sensitive adhesive sheet, the proportion of the 180° peel adhesive strength to a glass plate at a tensile speed of 300 mm/minute at 65° C. to the 180° peel adhesive strength to a glass plate at a tensile speed of 300 mm/minute at 25° C. (180° peel adhesive strength to a glass plate at a tensile speed of 300 mm/minute at 65° C./180° peel adhesive strength to a glass plate at a tensile speed of 300 mm/minute at 25° C.×100) is 30 or more.

A double-sided optically clear adhesive is provided. The double-sided optically clear adhesive includes a first adhesive layer and a second adhesive layer. The first adhesive layer includes a first resin and a first thermal-crosslinking agent. The first resin includes a hydroxyl group. The first thermal-crosslinking agent includes a first group. The second adhesive layer includes a second resin and a second thermal-crosslinking agent. The second resin includes a hydroxyl group. The second thermal-crosslinking agent includes a second group. The ratio of the equivalent number of the first group of the first thermal-crosslinking agent to the equivalent number of the hydroxyl group of the first resin is represented by r1. The ratio of the equivalent number of the second group of the second thermal-crosslinking agent to the equivalent number of the hydroxyl group of the second resin is represented by r2, wherein r1<r2≤0.8 and r2−r1≤0.025.

An adhesive composition includes a resin, a crosslinking agent, and a light absorber. The light absorber includes at least one selected from the group consisting of a benzophenone-based compound, a cyanoacrylate-based compound having a ring structure, a benzotriazole-based compound, and a sterically hindered amine compound having a ring structure.

A unit cell includes a separator and an electrode, which are alternately laminated by a predetermined number. The unit cell is configured such that: the unit cell is laminated in the order of a lower separator, any one electrode of an anode or a cathode, an upper separator, and the other one electrode of the anode or the cathode, wherein at least one surface of the electrode and the separator is applied with an adhesive to adhere the electrode and the separator or the lower separator and the upper separator. The adhesive contains an adhesive composition comprising a copolymer and a rosin ester-based additive, the copolymer contains 60.1 to 79.9% by weight of two or more kinds of alkyl (meth)acrylate-based repeating units (A), and 20.1 to 39.9% by weight of (meth)acrylate-based repeating unit (B) having a hydroxyl group at its end.

Provided are an adhesive sheet, an adhesive composition therefor, an optical member comprising same, and an optical display device comprising same, wherein the adhesive sheet comprises an adhesive layer formed of an adhesive composition containing a hydroxyl group-containing (meth)acrylic copolymer, a photo-initiator, a photo-curable crosslinking agent, and a heat-curable crosslinking agent; the heat-curable crosslinking agent contains an isocyanate-type crosslinking agent and carboxyl group-containing (meth)acrylate; the adhesive layer has a peeling strength of about 600 gf/in or more relative to a glass substrate at 25° C. and has a surface energy of about 70 mN/m or more at 25° C.

Provided herein is a waterborne resin composition comprising: 1) at least one binder resin comprising a hydroxyl-functional polymer, a carboxyl-functional polymer, a polyol, an amino-functional polymer, a carboxamide, or combinations thereof; and 2) at least one thermosetting resin, wherein the thermosetting resin comprises at least one aminoplast resin; wherein the waterborne resin composition is acid catalyzed. The waterborne resin composition may be a two-part system. Also described is a waterborne coating composition comprising the waterborne resin composition disclosed herein. Further, a process for preparing the waterborne coating composition is also disclosed.

Provided herein is a waterborne resin composition comprising: 1) at least one binder resin comprising a hydroxyl-functional polymer, a carboxyl-functional polymer, a polyol, an amino-functional polymer, a carboxamide, or combinations thereof; and 2) at least one thermosetting resin, wherein the thermosetting resin comprises at least one aminoplast resin; wherein the waterborne resin composition is acid catalyzed. The waterborne resin composition may be a two-part system. Also described is a waterborne coating composition comprising the waterborne resin composition disclosed herein. Further, a process for preparing the waterborne coating composition is also disclosed.

Provided is an acrylic emulsion pressure-sensitive adhesive composition, and more particularly, an acrylic emulsion pressure-sensitive adhesive composition which may realize excellent adhesive properties, and may maintain excellent adhesive strength even after aging, in particular, when applied to a curved surface of an adherend, and thus may be usefully applied to labels for bottles, etc.

Provided is an acrylic emulsion pressure-sensitive adhesive composition, and more particularly, an acrylic emulsion pressure-sensitive adhesive composition which may realize excellent adhesive properties, and may maintain excellent adhesive strength even after aging, in particular, when applied to a curved surface of an adherend, and thus may be usefully applied to labels for bottles, etc.

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.