C08F222/103

PRESSURE-SENSITIVE ADHESIVE SHEET, OPTICAL MEMBER, AND TOUCH PANEL

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.

PRESSURE-SENSITIVE ADHESIVE COMPOSITION, PRESSURE-SENSITIVE ADHESIVE LAYER, PRESSURE-SENSITIVE ADHESIVE SHEET, OPTICAL MEMBER, AND TOUCH PANEL

An object of the present invention is to provide a pressure-sensitive adhesive composition that 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 and transparency 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 composition of the present invention contains an acrylic polymer (A), a mixture of monomer components constituting the acrylic polymer (A) or a partially polymerized product of a mixture of monomer components constituting the acrylic polymer (A), and a hydrogenated polyolefinic resin (B) that exhibits liquid flowability at 25° C. The pressure-sensitive adhesive composition comprises a branched-chain alkyl group having 10 to 24 carbon atoms as a monomer component. The hydrogenated polyolefinic resin (B) has a number average molecular weight (Mn) of 1000 to 5000 and a polydispersity (Mw/Mn) of 2.0 or less. The hydrogenated polyolefinic resin (B) contains at least one selected from the group consisting of a hydrogenated polyolefin and a hydrogenated polyolefin polyol. The pressure-sensitive adhesive composition comprises 3 to 35 parts by weight of the hydrogenated polyolefinic resin (B) based on 100 parts by weight of the acrylic polymer (A).

PRESSURE-SENSITIVE ADHESIVE COMPOSITION, PRESSURE-SENSITIVE ADHESIVE LAYER, PRESSURE-SENSITIVE ADHESIVE SHEET, OPTICAL MEMBER, AND TOUCH PANEL

An object of the present invention is to provide a pressure-sensitive adhesive composition that 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 and transparency 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 composition of the present invention contains an acrylic polymer (A), a mixture of monomer components constituting the acrylic polymer (A) or a partially polymerized product of a mixture of monomer components constituting the acrylic polymer (A), and a hydrogenated polyolefinic resin (B) that exhibits liquid flowability at 25° C. The pressure-sensitive adhesive composition comprises a branched-chain alkyl group having 10 to 24 carbon atoms as a monomer component. The hydrogenated polyolefinic resin (B) has a number average molecular weight (Mn) of 1000 to 5000 and a polydispersity (Mw/Mn) of 2.0 or less. The hydrogenated polyolefinic resin (B) contains at least one selected from the group consisting of a hydrogenated polyolefin and a hydrogenated polyolefin polyol. The pressure-sensitive adhesive composition comprises 3 to 35 parts by weight of the hydrogenated polyolefinic resin (B) based on 100 parts by weight of the acrylic polymer (A).

One-part curable soft feel coatings

One-part, curable compositions that have a soft feel when applied as a coating/film and cured, may include a) at least one isocyanurate tri(meth)acrylate or derivative thereof; and at least one of components b)-e), wherein: b) is at least one urethane diacrylate; c) is at least one monofunctional or difunctional reactive diluent; d) is at least one solvent; and e) is additives. The one-part, curable compositions are advantageous with respect to softness and tailorability of softness as well as other properties such as mar resistance, abrasion resistance, stain resistance and chemical resistance. Due to their advantageous properties, embodiments of the one-part, curable compositions described herein are viable for a wide range of coating applications including automotives, aeronautics, cosmetics, small appliances, packaging and consumer electronics. Methods of making and using the one-part, curable are also described herein.

One-part curable soft feel coatings

One-part, curable compositions that have a soft feel when applied as a coating/film and cured, may include a) at least one isocyanurate tri(meth)acrylate or derivative thereof; and at least one of components b)-e), wherein: b) is at least one urethane diacrylate; c) is at least one monofunctional or difunctional reactive diluent; d) is at least one solvent; and e) is additives. The one-part, curable compositions are advantageous with respect to softness and tailorability of softness as well as other properties such as mar resistance, abrasion resistance, stain resistance and chemical resistance. Due to their advantageous properties, embodiments of the one-part, curable compositions described herein are viable for a wide range of coating applications including automotives, aeronautics, cosmetics, small appliances, packaging and consumer electronics. Methods of making and using the one-part, curable are also described herein.

Film for blocking ultraviolet rays

The present invention relates to a film for blocking ultraviolet rays that has excellent light resistance, thus exhibiting stable UV blocking performance for a long time, and has a low haze value, and thus is suitable for protecting an organic light emitting device and the like from the external light source.

Film for blocking ultraviolet rays

The present invention relates to a film for blocking ultraviolet rays that has excellent light resistance, thus exhibiting stable UV blocking performance for a long time, and has a low haze value, and thus is suitable for protecting an organic light emitting device and the like from the external light source.

Resin composition, method for producing three-dimensional molding using same, and three-dimensional molding
11692093 · 2023-07-04 · ·

Provided is a resin composition from which a three-dimensional molding can be produced at an appropriate speed and with high dimensional accuracy, wherein the obtained three-dimensional molding has high strength. This resin composition is used in a method for producing a three-dimensional molding composed of a cured product of a liquid resin composition by selectively irradiating the liquid resin composition with active energy rays. The resin composition includes at least: a first polymerizable compound, in a liquid state at room temperature, having radical polymerizability; a second polymerizable compound, in a liquid state at room temperature, having no radical polymerizability; and a filler, wherein the surface of the filler is covered with the second polymerizable compound.

Resin composition, method for producing three-dimensional molding using same, and three-dimensional molding
11692093 · 2023-07-04 · ·

Provided is a resin composition from which a three-dimensional molding can be produced at an appropriate speed and with high dimensional accuracy, wherein the obtained three-dimensional molding has high strength. This resin composition is used in a method for producing a three-dimensional molding composed of a cured product of a liquid resin composition by selectively irradiating the liquid resin composition with active energy rays. The resin composition includes at least: a first polymerizable compound, in a liquid state at room temperature, having radical polymerizability; a second polymerizable compound, in a liquid state at room temperature, having no radical polymerizability; and a filler, wherein the surface of the filler is covered with the second polymerizable compound.

Photo-alignment copolymer, binder composition, binder layer, optical laminate, and image display device

An object of the invention is to provide a photo-alignment copolymer capable of improving upper layer coatability after layer formation, a binder composition, a binder layer, an optical laminate, and an image display device. A photo-alignment copolymer according to the embodiment of the invention has a repeating unit A including a photo-alignment group, a repeating unit B including a crosslinkable group which causes a crosslinking reaction by the action of at least one selected from the group consisting of light, heat, an acid, and a base, and a repeating unit C including a cleaving group which decomposes by the action of at least one selected from the group consisting of light, heat, an acid, and a base to produce a polar group, and the repeating unit C has the cleaving group on a side chain, and has a group of atoms which is provided on a side closer to a terminal than the cleaving group on the side chain to be able to unevenly distribute the photo-alignment copolymer on an air interface side.