A method of forming an antireflection optical body (16a) includes: an application step of applying an adhesive (12) other than an epoxy adhesive onto an adherend (11); a fixing step of pressing a substrate film (15) having a fine structure body (16) at one surface side thereof against the adherend (11) from an opposite surface side to the one surface side to fix the adherend (11) and the fine structure body (16) through the adhesive (12); and a peeling separation step of releasing the pressing of the substrate film (15) and peeling fixed fine structure body (16) from the substrate film (15) while separating the fixed fine structure body (16) from fine structure body (16) on the substrate film (15) other than at a location fixed through the adhesive (12) such that the fixed fine structure body (16) is formed on the adherend (11) as an antireflection optical body (16a).

A method of forming an antireflection optical body includes: an application step of applying a photocurable resin onto one surface side of an adherend; a pressing step of pressing a substrate film having a fine structure body at one surface side against the photocurable resin from an opposite surface side by a light guide; a curing step of curing the photocurable resin by transmitting light through the light guide; and a peeling separation step of releasing the pressing of the substrate film and peeling fixed fine structure body that is fixed to the adherend through the cured photocurable resin substrate film while separating the fixed fine structure body from fine structure body on the substrate film other than at a location fixed through the photocurable resin such that the fixed fine structure body is formed on the adherend as an antireflection optical body.

The present invention aims to provide an interlayer film for a laminated glass which enables production of a laminated glass with suppressed occurrence of optical distortion, a method for producing the interlayer film for a laminated glass, and a laminated glass produced using the interlayer film for a laminated glass. The present invention relates to an interlayer film for a laminated glass produced by an extrusion lip embossing method utilizing melt fracture, the interlayer film for a laminated glass including a laminate that includes two or more resin layers in a stack and having a large number of protrusions and recesses on at least one surface, a maximum height Ry (m) and an average interval Sm (m) of the protrusions and recesses measured in conformity with JIS B 0601 (1994) on the surface with protrusions and recesses satisfying a formula (1):
(RySm)/23,500(1).

A polymer film and laminated glass manufactured using the polymer film. The polymer film includes a first and second layer, and a third layer disposed between the first and second layers, and the two surfaces of the third layer are in contact with the first and second layers, respectively. The surface of the first layer that is not in contact with the third layer is a first surface, and the surface of the second layer not in contact with the third layer is a second surface, wherein the first surface has a void volume (Vv) value at a material ratio of 10% ranging from 3 ?m.sup.3/?m.sup.2 to 30 ?m.sup.3/?m.sup.2 and a dale void volume (Vvv) at a material ratio of 80% less than 2 ?m.sup.3/?m.sup.2, and the ratio of the maximum pit height (Sv) of the first surface to the thickness of the first layer is 0.2 or less.

Optical interlayers, laminated composites and improved methods for manufacturing the optical interlayers and laminated composites are provided. An optical interlayer film comprises at least one surface having an embossed surface pattern having at least two channels extending in at least two non-parallel directions. The channels have a depth of greater than about 20 ?m. The surface pattern allows for the removal of air between the interlayer and the outer laminate sheets, thereby establishing the requisite seal therebetween while minimizing premature edge sealing. The laminated composites are particularly useful for safety glazing in a variety of applications, such as automobiles, airplanes, trains, or other modes of transportation, display devices, windows in homes and other buildings, building facades, cabinets, and/or weight bearing architectural structures such as stairs and floors.

The present invention concerns a laminated glazing having variable light transmission comprising two glass sheets, an external glass sheet and an internal glass sheet, that are joined by at least one thermoplastic interlayer sheet, an assembly of a functional film, which is incorporated into the laminate between the two glass sheets. According to the invention, the at least one thermoplastic interlayer sheet has a roughness with a Rz comprised between 50 and 400 ?m and a Ra comprised between 15 and 90 ?m and preferably with a Rz comprised between 100 and 400 ?m and a Ra comprised between 30 and 90 ?m.

Provided herein are multilayer polymeric interlayers comprising ionomers and acoustic damping compositions, and glass laminates made from them, which provide an improved combination of hurricane resistance, acoustic damping properties and, optionally, solar barrier performance.

The present invention aims to provide an embossed thermoplastic resin sheet that is capable of enhancing deaeration during production of laminated glass and suppressing optical distortion of the resulting laminated glass to improve the visibility when used as an interlayer film for laminated glass. The present invention also relates to an engraved roll used for production of the embossed thermoplastic resin sheet, a production method of the engraved roll, an interlayer film for laminated glass including the embossed thermoplastic resin sheet, and a laminated glass. The present invention relates to an embossed thermoplastic resin sheet having a large number of recesses and a large number of projections on at least one surface, the recesses each having a groove shape with a continuous bottom and being regularly arranged side by side in parallel with one another, the thermoplastic resin sheet having not more than three defects of the projections per mm.sup.2 on the surface.

The present invention aims to provide an interlayer film for a laminated glass that adheres sufficiently to glass at peripheral portions of the glass to prevent occurrence of a sealing failure at the peripheral portions and also to contribute to improved production efficiency of laminated glass in production of laminated glass, even when having a thickness at the thickest portion of 850 m or more, and a laminated glass produced using the interlayer film for a laminated glass. Provided is an interlayer film for a laminated glass having a large number of recesses on at least one surface, the interlayer film for a laminated glass having a thickness T (m) measured in conformity with JIS K-6732 (1996) and a maximum height roughness Ry (m) measured in conformity with JIS B-0601 (1994) at a thickest portion, the thickness T and the maximum height roughness Ry satisfying the following expressions (1) and (1):

Ry0.0195T+33.2(1),

T850(1).

Polymer film and laminated glass manufactured using the polymer film are provided. The polymer film has a first surface and a second surface, wherein the first surface has a peak material volume (Vmp) at a material ratio of 10% ranging from 0.15 ?m.sup.3/?m.sup.2 to 1.20 ?m.sup.3/?m.sup.2 and a kurtosis (Sku) ranging from 0.73 to 10.02, wherein the material ratio, peak material volume, and kurtosis are defined in accordance with ISO 25178-2:2012.