A metal clad laminated plate is a metal clad laminated plate including: an insulating layer containing a liquid crystal polymer; and a metal foil lying on the insulating layer. The metal foil has a surface lying on the insulating layer. The surface has a mean width of profile elements (RSm) of greater than or equal to 10 μm and less than or equal to 65 μm. The mean width is calculated from a roughness curve obtained from a cross section of the metal clad laminated plate. The metal clad laminated plate has a plate thickness accuracy of less than ±20%. Pull strength of the metal foil from the insulating layer is greater than or equal to 0.8 N/mm.

The present specification provides a multi-layer liquid crystal film including: a substrate; a first alignment film comprising an alignment material and an acrylate in which a weight ratio of the alignment material to the acrylate is 3:1 to 5:1; a first liquid crystal film provided on the first alignment film; a second alignment film provided on the first liquid crystal film; and a second liquid crystal film provided on the second alignment film, and a method for manufacturing a polarizing plate, the method including: laminating the multi-layer liquid crystal film to a polarizer and peeling off the substrate.

The present specification provides a multi-layer liquid crystal film including: a substrate; a first alignment film provided on the substrate; a first liquid crystal film provided on the first alignment film; a second alignment film provided on the first liquid crystal film and comprising a multifunctional acrylate; and a second liquid crystal film provided on the second alignment film, and a method for manufacturing a polarizing plate, including: laminating the multi-layer liquid crystal film to a polarizer, and peeling off the substrate.

A laminate structure comprising a tape and a molded component is provided. The tape comprises a substrate having a first surface and an opposing second surface, wherein a first adhesive coating is disposed on the first surface of the substrate. The molded component is positioned adjacent and bonded to the first adhesive coating of the tape, wherein the molded component includes a polymer composition that contains a liquid crystalline polymer. The peel strength between the tape and the molded component is about 0.55 pounds-force per inch more as determined in accordance with ASTM D3167-10 (2017).

An optical element and a method for using thereof are provided. The present application provides an optical element that may provide various modes, and has excellent durability, and the like.

An object of the present invention is to provide a laminate in which an excellent alignment property of a dichroic substance is maintained and which is excellent in both high-temperature durability and moisture-heat resistance, a manufacturing method of the laminate, and an image display device using the laminate. A laminate according to an embodiment of the present invention is a laminate having a transparent support, a light absorption anisotropic film, and a transparent resin layer in this order, in which the light absorption anisotropic film is a film containing a dichroic substance represented by a predetermined formula, and the transparent resin layer is a layer containing a polymer which has a hydrophilic group and does not have a glass transition temperature in a temperature range of 95° C. or lower.

Provided are a liquid crystal polymer film containing a liquid crystal polymer, in which the liquid crystal polymer film includes a portion where a density of the liquid crystal polymer is low and a portion where the density of the liquid crystal polymer is high; a liquid crystal polymer film containing a liquid crystal polymer and a compound incompatible with the liquid crystal polymer; a liquid crystal polymer film containing a liquid crystal polymer and a compound A, in which an absolute value of a difference between an SP value of the liquid crystal polymer, which is determined by Hoy method, and an SP value of the compound A, which is determined by Hoy method, is 0.1 MPa.sup.0.5 or more; and a method for manufacturing these polymer films; and a laminate using the liquid crystal polymer film.

Provided are a liquid crystal polymer film or a polymer film, which has low dielectric loss tangent and has excellent breaking strength; and a laminate using the liquid crystal polymer film or the polymer film. The liquid crystal polymer film contains a liquid crystal polymer A and a compound having a melting point lower than a melting point of the liquid crystal polymer A and having a dielectric loss tangent of less than 0.01.

Provided are a laminate including a polymer film in which a linear expansion coefficient of at least one surface X is smaller than a linear expansion coefficient of an inside and a metal layer or a metal wire, which is provided on a surface Y side opposite to the surface X of the polymer film; and a polymer film in which a linear expansion coefficient of at least one surface X is smaller than a linear expansion coefficient of an inside.

Provided are a film capable of suppressing a distortion of a metal wire in a case where the film is adhered to the metal wire, and a laminate formed of the film. The film has a dielectric loss tangent of 0.005 or less, and has an elastic modulus of at least one surface at 160° C., which is smaller than an elastic modulus of an inside at 160° C.