There is provided an interlayer film for laminated glass with which double images in laminated glass can be considerably suppressed. The interlayer film for laminated glass according to the present invention has one end and the other end being at the opposite side of the one end, makes the thickness of the other end larger than the thickness of the one end, has a display corresponding region corresponding to a display area of the head-up display, and when a position apart from an end part at the one end side of the display corresponding region by 4 cm toward the other end is set to a start point, a position apart from an end part at the other end side of the display corresponding region by 4 cm toward the one end is set to an end point, spots are selected at 2-mm intervals from the start point to the end point, and the interlayer film is measured for the amount of change in the thickness within respective segments, centered on the respective spots, of 80 mm in a direction connecting the one end and the other end, makes the absolute value of a difference between the largest value among values of the amount of change in the thickness and the smallest value among values of the amount of change in the thickness 32 m or less.

A walk-on laminated safety glass pane having an anti-slip surface is described. The laminated safety glass pane includes at least two glass panes, which are permanently bonded to each other using a polymeric layer. A polymeric intermediate layer is applied to one surface of the laminated safety glass pane. A glass pane having an anti-slip surface is applied to the polymeric intermediate layer. An elastic polymeric gasket is inserted circumferentially in the edge region of the polymeric intermediate layer. The laminated safety glass pane has a drilled hole and the drilled hole is sealed at subatmospheric pressure.

The present invention aims to provide an interlayer film for laminated glass capable of displaying images with a high luminous intensity when irradiated with a light beam and having excellent durability, and a laminated glass including the interlayer film for laminated glass. The present invention relates to an interlayer film for laminated glass, including a light-emitting layer that contains a polyvinyl acetal resin and a lanthanoid complex as light-emitting particles, the light-emitting layer containing not more than 100 ppm in total of a nitric acid-derived component and a carbonate component.

A laminated pane having two main surfaces and a circumferential edge surface is presented. The laminated pane includes, in order and adhesively joined one atop another, a transparent glass pane, a transparent adhesion-promoting layer, an opaque or translucent stone layer, and an all-around seal of the circumferential edge surface. According to one aspect, the all-around seal has at least two polymer layers of different materials. One of the polymer layers is an adhesive film that engages, on its boundary layer, in pores and/or cracks of the stone layer. The other polymer layer is a barrier film that forms a fluid barrier. Methods for producing and using of the laminated pane are also presented.

Laminated glass for automobile windshield includes: a first and a second glass plate facing each other, and an intermediate film disposed between the glass plates and including a plurality of core layers and a plurality of skin layers alternately laminated. The plurality of core layers have a glass transition point of lower than 15 C. The plurality of skin layers have a glass transition point of 15 C. or higher. The plurality of core layers include two or more core layers. The laminated glass has a maximum degree of unevenness of 3 m or less in a test area A.

Provided is an interlayer film for laminated glass with which the penetration resistance of laminated glass can be heightened. An interlayer film for laminated glass according to the present invention includes one end and the other end on an opposite side of the one end, the other end has a thickness larger than a thickness of the one end, the interlayer film does not contain or contains alkali metal, the interlayer film does not contain or contains alkali earth metal, and the interlayer film contains magnesium. Further in the interlayer film for laminated glass, a content of magnesium in a surface portion of a first region on the one end side of the interlayer film after heated at 150 C. for 30 minutes, a total content of alkali metal, alkali earth metal and magnesium in the surface portion of the first region on the one end side of the heated interlayer film, a content of magnesium in a surface portion of a second region on the other end side of the heated interlayer film, and a total content of alkali metal, alkali earth metal and magnesium in the first or second region of the interlayer film after heat satisfy specific relationships.

This disclosure is related to the field of polymer interlayers for multiple layer panels and multiple layer panels having at least one polymer interlayer sheet. Specifically, this disclosure is related to the field of high rigidity interlayers and light weight laminated multiple layer panels incorporating high rigidity interlayers.

Provided is a method for manufacturing a laminate that is excellent in adhesion between the copper foil and the resin film while using a polyvinyl acetal resin having low reactivity with the copper foil. This method includes the steps of providing a copper foil having on at least one side a treated surface on which an amount of metal components is 30 atomic % or more and 40 atomic % or less, and attaching or forming a polyvinyl acetal resin film on the treated surface of the copper foil to form a laminate. The amount of metal components is a proportion of Cr, Ni, Cu, Zn, Mo, Co, W, and Fe in a total amount of N, O, Si, P, S, Cl, Cr, Ni, Cu, Zn, Mo, Co, W, and Fe when the treated surface is subjected to elemental analysis by X-ray photoelectron spectroscopy (XPS).

A method for manufacturing a laminated glass with an inserted film includes: forming a receiving hole in a first soft transparent plastic layer; placing the first soft transparent plastic layer on a first layer of glass; putting a soft transparent plastic sandwich containing the inserted film into the receiving hole, wherein the soft transparent plastic sandwich has a thickness equal to or smaller than a depth of the receiving hole; covering with a second layer of glass, and clamping the first layer of glass and the second layer of glass together with a tool; debubbling; and bonding with high temperature and pressure. The method is capable of inserting the film in a small area instead of in a large area of the laminated glass, so as to reduce the production cost.

Principles and embodiments of the present disclosure relate to unique asymmetric laminates and methods that produce the laminates that have improved damage tolerance, where the laminate includes a first strengthened glass substrate having a first central tension value bonded to a second strengthened glass substrate having a second central tension value by an interlayer, where the first central tension value is less than the second central tension value.