Abstract: An adhesive layer is formed by cross-linking an adhesive composition containing: a polyester resin that is a copolymer of a polycarboxylic acid and a polyalcohol; a cross-linking agent; and at least one cross-linking catalyst selected from the group consisting of an organic zirconium compound, an organic iron compound, and an organic aluminum compound, the adhesive layer having a gel fraction of 40% or more after being retained at a temperature of 85° C. and a relative humidity of 85% for 300 hours, and having a 180° peel adhesive strength of 100 mN/20 mm or more with respect to a PMMA film.

Abstract: A construction according to the invention is a construction including a framework formed by first framework members and second framework members, and panels held by the framework. One or more of the panels can transmit visible light. One or more of the panels that can transmit visible light is a lighting device. The lighting device includes a light source, and a light guide that can transmit visible light and includes a light guide plate to guide light emitted from the light source. The light guide plate includes a light incident surface facing the light source and into which the light emitted from the light source enters, a first principal surface on the interior of the construction and from which the light guided in the light guide plate exits, and a second principal surface on the exterior of the construction and opposing the first principal surface.

Abstract: A vehicular door sash includes a sash frame formed by subjecting a predetermined metal sheet to a roll molding process to have a predetermined cross section. The sash frame includes a groove portion for retaining a glass-run channel, a retainer portion for retaining a weather strip, a flange portion that connects the retainer portion and the groove portion and partially forms an outer surface of a door of a vehicle, and a sash molding configured to cover the flange portion. The flange portion has a first configuration in which the flange portion is not covered by the sash molding and a second configuration in which the flange portion is covered and compressed by the sash molding.

Abstract: To use the same sash material for producing two types of a vehicular door sash, a lower-cost type provided with no sash molding, and a luxury type provided with sash molding produced through additional roll molding means to reduce the width of its flange portion. The additional roll molding means (D) performed by a plurality of rollers (D1, D2, D3) includes a crushing step that crushes a space formed on the back surface of the flange portion 3 under pressure, and a bending step that bends an end portion 12 of the crushed flange portion 3 at the side of the groove portion 1 upward.