C09K2323/05

Adhesive resin and adhesive composition for optical member including same

An adhesive resin and an adhesive composition for an optical member including the same is provided. The adhesive resin includes an acrylic copolymer formed by polymerizing a monomer mixture including a monomer represented by [Formula 1], a (meth)acrylic monomer having a cross-linkable functional group, and an alkyl (meth)acrylate-based monomer.

POLARIZING FILM WITH ADDED ADHESIVE LAYER, POLARIZING FILM WITH ADDED ADHESIVE LAYER FOR IN-CELL LIQUID CRYSTAL PANEL, IN-CELL LIQUID CRYSTAL PANEL, AND LIQUID CRYSTAL DISPLAY DEVICE

An in-cell type liquid crystal panel is disclosed containing an in-cell type liquid crystal cell, a first polarizing film disposed on a viewing side of the in-cell liquid crystal cell, a second polarizing film disposed opposite to the viewing side, and a first pressure-sensitive adhesive layer disposed between the first polarizing film and the in-cell type liquid crystal cell, wherein: a surface resistance value of the first pressure-sensitive adhesive layer side is 1.0×10.sup.8 to 1.0×10.sup.11Ω/□ at the time of producing a first pressure-sensitive adhesive layer attached polarizing film in a state where the first pressure-sensitive adhesive layer is provided on the first polarizing film and a separator is provided on the first pressure-sensitive adhesive layer, and peeling off the separator immediately after the production, and a moisture permeability of the transparent protective film at 40° C.×92% RH is 900 g/(m.sup.2.Math.24 h) or less.

Photocurable composition for optical bonding agent, image display device applying same, and method for manufacturing image display device

Provided is a photocurable composition for an optical bonding agent, including an acrylic photocurable compound and a plasticizer, in which the acrylic photocurable compound includes a monofunctional acrylic photocurable monomer and a (meth)acrylate-based photocurable polymer having a weight average molecular weight of 50,000 g/mol or less, and the monofunctional acrylic photocurable monomer is included in an amount of more than 0 wt % and 15 wt % or less in the photocurable composition for the optical bonding agent.

SEALING MATERIAL COMPOSITION, LIQUID CRYSTAL CELL AND SCANNING ANTENNA
20210132423 · 2021-05-06 ·

The sealing material composition of the disclosure includes an unsaturated carbonyl compound having at least two unsaturated carbonyl groups and a curing agent that is thermally reactive with the unsaturated carbonyl compound and contains a compound having at least two of one or more kinds of functional groups selected from the group consisting of a mercaptan group, a hydroxyl group, and a secondary amine group.

Multilayer Adhesive Film

A multilayer adhesive film is provided including: a first outer adhesive layer; a second outer adhesive layer; and an intermediate adhesive layer disposed between the first outer adhesive layer and the second outer adhesive layer. The multilayer adhesive film has both high step absorbency and excellent reworkability.

Flexible liquid crystal film using fiber-based foldable transparent electrode and method of fabricating the same

A flexible liquid crystal film using a fiber-based foldable transparent electrode and a method of fabricating the same are provided. A flexible liquid crystal film using a fiber-based foldable transparent electrode according to an exemplary embodiment of the present disclosure, the flexible liquid crystal film includes: a pair of fiber-based foldable transparent electrodes in which a nanofiber transparent thin film formed of a polymer and a Nylon-6 nanofiber is coated with a silver (Ag) nanowire; and a dispersed liquid crystal formed by being cured between the pair of fiber-based foldable transparent electrodes.

DISPLAY DEVICE
20210051807 · 2021-02-18 ·

The present disclosure provides a display device that include: a display panel that includes a display area and a peripheral area that is provided at the periphery of an edge of the display area; a window that is provided on one side of the display panel to protect the display panel; and an adhesive film that is provided between the display panel and the window to bond the display panel and the window to each other, wherein the adhesive film in an area that corresponds to the peripheral area and the adhesive film in an area that corresponds to the display area have different properties.

Adhesive sheet
10920108 · 2021-02-16 · ·

A pressure-sensitive adhesive sheet according to the present invention includes an irradiation-curable acrylic pressure-sensitive adhesive layer. The acrylic pressure-sensitive adhesive layer includes an acrylic polymer and a multifunctional acrylic oligomer. The acrylic pressure-sensitive adhesive layer, after curing, has a Young's modulus of 500 kPa to 10000 kPa at 23 C. The acrylic pressure-sensitive adhesive layer, after curing, has an adhesive strength of 3.0 N/20 mm or more. The acrylic pressure-sensitive adhesive layer before curing may have an adhesive strength of typically 3.0 N/20 mm or more. The acrylic pressure-sensitive adhesive layer before curing may have a Young's modulus of typically 30 kPa to 200 kPa at 23 C.

Multilayer Adhesive Tape

The present invention relates to a multilayer adhesive tape including: a first outer adhesive layer; an intermediate adhesive layer; and a second outer adhesive layer sequentially, in which at least one of the first outer adhesive layer and the second outer adhesive layer includes a cured product of an outer adhesive composition including a high molecular weight prepolymer having a weight average molecular weight of 100,000 g/mol or more and 1,500,000 g/mol or less and a low molecular weight prepolymer having a weight average molecular weight of 1,000 g/mol or more and 80,000 g/mol or less.

PRESSURE-SENSITIVE-ADHESIVE-LAYER-ATTACHED POLARIZING FILM, AND IMAGE DISPLAY DEVICE

A pressure-sensitive-adhesive-layer-attached polarizing film is disclosed having an odd shape, and capable of reducing occurrence of a crack in a polarizer and preventing peeling and foaming of a pressure-sensitive adhesive layer and warpage of a polarizing film. This pressure-sensitive-adhesive-layer-attached polarizing film comprises a polarizing film, and a pressure-sensitive adhesive layer on one surface of the polarizing film. The pressure-sensitive-adhesive-layer-attached polarizing film has an odd shape other than a rectangular shape, and when a strain gauge is attached to a surface not having the pressure-sensitive adhesive layer of the polarizing film such that a measurement axis and an absorption axis of the polarizing film intersect at right angles and strain amounts are measured, a difference between a strain amount at 40 C. and a strain amount at 85 C. is 3000 or less, and the creep value of the pressure-sensitive adhesive layer at 85 C. is 15-600 m inclusive.