B32B27/308

LAYERED DEVICE FOR PRESSURE TREATMENT AND METHOD
20220386474 · 2022-12-01 · ·

A layered device having two base films, a conductive pattern attached to the first base film facing the second base film and a bonding layer binding the first base film and the second base film together. The bonding layer includes an opening, and the conductive pattern having an exposed portion aligned with the opening in the bonding layer. Further disclosed is a spacer attached to the first base film and the exposed portion of the conductive pattern, wherein the spacer fills at least part of the space created by the opening in the bonding layer. Also disclosed is a method of producing a layered device.

RESIN SHEET FOR MOLDING AND MOLDED ARTICLE USING SAME

Provided is a resin sheet for molding that has a high-hardness resin layer that includes a high-hardness resin on at least one surface of a base material layer that includes a polycarbonate resin, the high-hardness resin layer having a hardcoat layer or a hardcoat anti-glare layer layered on at least one side thereof. The glass transition points of the polycarbonate resin and the high-hardness resin satisfy the relationship: −10° C.≤(glass transition point of high-hardness resin)−(glass transition point of polycarbonate resin)≤40° C. The in-plane retardation of the resin sheet as measured at a wavelength of 543 nm is at least 4,000 nm. A resin film that has an in-plane retardation of no more than 50 nm as measured at a wavelength of 543 nm is stuck to one side of the resin sheet by means of an adhesive layer that includes an adhesive.

ORIENTED MULTILAYER SHRINK FILMS WITH AMORPHOUS COPOLYESTER SKIN LAYERS
20220379587 · 2022-12-01 ·

A multilayer, oriented shrink film includes a core layer, skin layers on opposed sides of the core layer, and an interlayer between each skin layer and the core layer for bonding each skin layer to the core layer. The core layer comprises a polypropylene terpolymer, at least one polybutene-1 copolymer and at least one polypropylene elastomeric copolymer including ethylene. At least one skin layer comprises at least one amorphous glycol-modified polyethylene terephthalate. At least one interlayer includes a polypropylene terpolymer and an ethylene copolymer with vinyl acetate or methyl acrylate. The shrink film has a shrinkage of greater than 50% at 95° C. in one of the machine direction and transverse direction of film formation and has a density below 1.0 g/cm3.

DEBONDING TAPE AND METHOD OF PROCESSING SEMICONDUCTOR WAFER USING THE SAME
20220384238 · 2022-12-01 · ·

A debonding tape includes a first tape layer including a first base layer having a first modulus and a first adhesive layer on the first base layer, wherein the first tape layer has a first diameter. The debonding tape includes a second tape layer on the first tape layer and supporting the first tape layer, wherein the second tape layer includes a second base layer on the first adhesive layer and having a second modulus greater than the first modulus, an intermediate layer on the second base layer, and a second adhesive layer on the intermediate layer. The second tape layer has a second diameter smaller than the first diameter such that a circumferential portion of the first tape layer is exposed in a cross-sectional view.

ROLLABLE DISPLAY DEVICE
20220384762 · 2022-12-01 · ·

A rollable display device having a normal display status and an expanded display status is disclosed. The rollable display device includes a display layer and an optical layer. The display layer has a greater display area when the rollable display device is in the expanded display status than in the normal display status. The optical layer is attached to the display layer through an adhesive, and the optical layer includes a base layer and a functional layer disposed between the base layer and the adhesive. The functional layer is in contact with the adhesive.

METHOD FOR PRODUCING MULTILAYER FILM
20220380560 · 2022-12-01 · ·

Embodiments provide a multilayer film, including: a first acrylic resin layer (α1), an aromatic polycarbonate resin layer (β), and a second acrylic resin layer (α2), where the first acrylic resin layer (α1), the aromatic polycarbonate resin layer (β), and the second acrylic resin layer (α2) are directly laminated in the stated order, where a glass transition temperature of an aromatic polycarbonate resin constituting the aromatic polycarbonate resin layer (β) is 100-140° C., and where the following formulae (4-1) and (4-2) and the following properties (i) and (ii) are satisfied: (Tβ−Tα.sub.1)≤30 . . . (4-1), (Tβ−Tα2)≤30 . . . (4-2), (i) a total light transmittance of the multilayer film is 85% or more, and (ii) a retardation of the multilayer film is 75 nm or less; and where Tai is a glass transition temperature of an acrylic resin constituting the first acrylic resin layer (α1), Tae is a glass transition temperature of an acrylic resin constituting the second acrylic resin layer (α2), and Tβ is a glass transition temperature of an aromatic polycarbonate resin constituting the aromatic polycarbonate resin layer (β), and all temperature units are ° C.

Anti-glare hard coat laminated film

One embodiment provides a hard coat laminated film, comprising, in order from a surface layer side, a first hard coat, a second hard coat, and a transparent resin film layer, where the first hard coat is formed of a coating material including: (A) 100 parts by mass of a polyfunctional (meth)acrylate; (B) 0.01 to 7 parts by mass of a water repellent; (C) 0.01 to 10 parts by mass of a silane coupling agent; and (D) 0.1 to 10 parts by mass of resin microparticles having an average particle diameter of 0.5 to 10 μm, and containing no inorganic particles, and where the second hard coat is formed of a coating material containing inorganic particles. Another embodiment provides a hard coat laminated film having, in order from a surface layer side, a first hard coat, a second hard coat, and a resin film layer. The first hard coat includes a coating material that does not include inorganic particles. The second hard coat includes a coating material including inorganic particles. The adhesive film fulfills the conditions: (i) a total light transmission rate of at least 85%; (ii) a pencil hardness for the first hard coat surface of at least 5H; and (iii) a Y value for an XYZ color system of 1.5%-4.2%.

Method for manufacturing exterior housing and electronic device comprising same

An electronic device of the present invention comprises: an exterior housing including a first surface facing a first direction, and a second surface facing a second direction opposite to the first direction; a display of which at least a part is exposed through the first surface; and a polymer plate which forms at least a part of the second surface of the housing. The polymer plate comprises: at least one opaque layer; at least one polymer layer that is translucent or transparent and is disposed on the at least one opaque layer; and a coating layer that is disposed on the at least one polymer layer and has a hardness greater than or equal to a selected hardness. Each of the at least one opaque layer, the at least one polymer layer, and the coating layer may comprise a first surface, and a second surface extending from the first surface so that at least a part thereof is bent. Other embodiments are also possible.

Ethylene-vinyl alcohol copolymer composition, pellets, and multilayer structure

An ethylene-vinyl alcohol copolymer composition is substantially free from coloration, and contains: (A) an ethylene-vinyl alcohol copolymer; (B) a polyamide resin; and (C) an iron compound; wherein the iron compound (C) is present in an amount of 0.01 to 20 ppm on a metal basis based on the weight of the ethylene-vinyl alcohol copolymer composition.

Multilayer cling film and box
11511528 · 2022-11-29 · ·

A plastic film for cling film application packed in a box, and a box including such a film, are described. The cling film includes a polyolefin such as low-density polyethylene (LDPE), linear low-density polyethylene (LLDPE), metallocene LLDPE, polyolefin plastomer, ethylene vinyl acetate (EVA), ethylene methyl acrylate (EMA), ethylene butyl acrylate (EBA), polypropylene (PP), cyclic olefin copolymer, or combinations thereof; and a polymer with a Young's modulus higher than 500 MPa selected from ethylene vinyl alcohol (EVOH), polyamide, polyester, cyclic olefin copolymer, polypropylene and polylactide (PLA), or combinations thereof. The film includes an inner layer and an outer layer, wherein the outer layer is free of polypropylene. The film is packed in a box which does not include any cutting unit. The film is configured to be manually cut by a user without using any cutting unit.