The present invention relates to a method for recycling an intermediate film for laminated glass, comprising a step of separating a layer comprising an A layer and a layer comprising a B layer from the intermediate film for laminated glass (1) comprising at least the A layer and the B layer.

An automotive laminated glass includes a thermoplastic interlayer film, a curved first glass sheet, and a curved second glass sheet. The thermoplastic interlayer film is disposed between the first and second glass sheets. The first glass sheet is a 0.7- to 3-mm thick non-chemically strengthened glass sheet including a convex-side first main surface and a concave-side second main surface facing the thermoplastic interlayer film. The second glass sheet is an ion-exchanged, 0.3- to 1.5-mm thick chemically strengthened glass sheet including a convex-side third main surface facing the thermoplastic interlayer film and a concave-side fourth main surface. The second glass sheet is thinner than the first glass sheet. The convex-side third main surface has a compressive stress layer thicker than that on the concave-side fourth main surface, and the second glass sheet is adjusted to fit the curvature of the first glass sheet.

There is provided an interlayer film for laminated glass with which laminated glass having a gradation pattern with suppressed color irregularity can be prepared. The interlayer film for laminated glass according to the present invention is provided with a dark color part, a gradation part and a transparent part, allows laminated glass prepared with two sheets of clear glass to have a parallel light transmittance in a portion of the dark color part less than or equal to 30%, allows the parallel light transmittance in a portion of the gradation part to be continuously increased from the dark color part side to the transparent part side, allows the laminated glass to have a parallel light transmittance in a portion of the transparent part greater than or equal to 60%, allows each of the dark color part, the gradation part and the transparent part to have a first resin layer and allows each of the dark color part and the gradation part to have a second resin layer or allows each of the dark color part, the gradation part and the transparent part to have a second resin layer and allows each of the gradation part and the transparent part to have a first resin layer, and furthermore, allows the thickness of the second resin layer in the gradation part to be continuously decreased from the dark color part side to the transparent part side.

A laminated glass includes first and second glass plates arranged on vehicle interior and exterior sides, respectively; and an intermediate film located between the glass plates, and configured to be bonded to the glass plates. The laminated glass has a display area used for a head-up display. The display area includes an area having a cross section with a wedge shape. A thickness of an upper edge side portion of the display area is greater than that of a lower edge side. In at least a part of the area having a cross section with a wedge shape, a value of the wedge angle varies depending on a position of measurement in the vertical direction. A viewing angle of the display area is 2 degrees or more. A maximum amount of deviation in measured values of the wedge angles from a linear approximation line is 0.2 mrad or less.

A method for producing a composite pane, includes arranging a functional element in a recess of a thermoplastic frame film, arranging the thermoplastic frame film along with the functional element between a first glass pane and a second glass pane to form a layer stack, and subsequent joining of the layer stack by lamination to form a composite pane. The thermoplastic frame film and the functional element have a different thickness and the different thickness is at least partially compensated by at least one thermoplastic compensating film, whose thickness is less than twice as large as the difference between the thicknesses of the thermoplastic frame film and the functional element such that the maximum offset in the layer stack is less than the difference between the thicknesses of the thermoplastic frame film and the functional element.

There is provided an interlayer film for laminated glass with which laminated glass having a gradation pattern with suppressed color irregularity can be prepared. The interlayer film for laminated glass according to the present invention is provided with a dark color part, a gradation part and a transparent part, allows laminated glass prepared with two sheets of clear glass to have a parallel light transmittance in a portion of the dark color part less than or equal to 30%, allows the parallel light transmittance in a portion of the gradation part to be continuously increased from the dark color part side to the transparent part side, allows the laminated glass to have a parallel light transmittance in a portion of the transparent part greater than or equal to 60%, allows each of the dark color part, the gradation part and the transparent part to have a first resin layer and allows each of the dark color part and the gradation part to have a second resin layer or allows each of the dark color part, the gradation part and the transparent part to have a second resin layer and allows each of the gradation part and the transparent part to have a first resin layer, and furthermore, allows the thickness of the second resin layer in the gradation part to be continuously decreased from the dark color part side to the transparent part side.

Provided is a laminated glass in which creasing is reduced in the interlayer film and having excellent appearance although an interlayer film including a film having optical properties is used. A laminated glass according to the present invention comprises a first lamination glass member, a second lamination glass member, and an interlayer film, the interlayer film is arranged between the first lamination glass member and the second lamination glass member, the interlayer film includes a film having optical properties, and a second layer containing a thermoplastic resin, a maximum value of distance from an end part of the first lamination glass member to an end part of the film having optical properties is 15 mm or less, and in a 5-cm region inward from the end part of the first lamination glass member, a maximum value of height of recesses and projections of surface of the film having optical properties in cross section observation along a thickness direction of the film having optical properties is 100 ?m or less.

Laminated glass includes a pair of glass plates each having a curvature; an intermediate film located between the pair of glass plates; and a light control element enclosed in the intermediate film. The light control element includes a first resin layer; a second resin layer; and a light control layer held by the first resin layer and the second resin layer. One or more slits are provided in a main surface of the first resin layer.

The present invention provides an interlayer film for laminated glass which has excellent sound insulating properties even when the thickness is reduced, and also hardly causes optical unevenness.

An interlayer film for laminated glass includes at least one layer A containing a thermoplastic elastomer, wherein the shear storage modulus of the layer A at 70 C. as measured by performing a dynamic viscoelasticity test at a frequency of 1,000 Hz in accordance with ASTM D4065-06 is 1 MPa or more, and a layer having a higher shear storage modulus than the layer A is provided on at least one surface of the layer A, and at least one surface of the interlayer film for laminated glass is in a state of having been shaped.

The present invention aims to provide an interlayer film for a colored laminated glass which exhibits a visible light transmittance Tv of 5% or lower, small variation in visible light transmittance and an excellent appearance when incorporated in a laminated glass together with two clear glass plates in conformity with JIS R3202 (1996), and a colored laminated glass produced using the interlayer film for a colored laminated glass. Provided is an interlayer film for a colored laminated glass exhibiting a visible light transmittance Tv of 5% or lower when incorporated in a laminated glass together with two clear glass plates in conformity with JIS R3202 (1996), the interlayer film for a colored laminated glass including a laminate of at least two layers including a first resin layer containing a thermoplastic resin and a colorant and a second resin layer containing a thermoplastic resin and no colorant, the first resin layer satisfying a ratio of a difference t.sub.1 in thickness between the maximum value t.sub.1max and the minimum value t.sub.1min to an average thickness (t.sub.1/average thickness of first resin layer) of 0.30 or less.