An interlayer film for a laminated glass, containing in sequence an A layer, a C layer, and an A layer, and also containing a B layer at any place between or outside these layers, wherein each A layer contains a first thermoplastic resin, a resin material constituting each A layer has a tan δ peak of −30° C. to 10° C., the resin material of at least one layer of the A layers has a peak height of a tan δ of 1.5 or more, the B layer contains a second thermoplastic resin, and is constituted of a resin material different from the resin material constituting the A layer, and the C layer is a layer composed of an inorganic glass having a thickness of 0.1 mm to 1.5 mm, or a layer having a thickness of 0.25 mm to 2.5 mm and containing a third thermoplastic resin.

Provided is an interlayer film for laminated glass capable of enhancing the sound insulating properties of laminated glass, and making foaming less likely to occur in an end part. The interlayer film for laminated glass according to the present invention includes a first layer, and a lateral covering part that covers at least part of a lateral part of the first layer, and the first layer has a shear elastic modulus at 25° C. of 0.17 MPa or less, and the lateral covering part has a shear elastic modulus at 25° C. of more than 1 MPa.

The plastic intermediate film includes a sound insulating layer, wherein the sound insulating layer comprises a polyvinyl acetal resin, a plasticizer, and a refractive index regulator, wherein the refractive index regulator is particles with average diameter (D.sub.50) of 100 nm or less and has an absolute refractive index of 2.0 or more, wherein the refractive index regulator is comprised in an amount of more than 0 wt % and 1 wt % or less based on the entire sound insulating layer, and wherein the plasticizer is comprised in an amount of 33 to 41 wt % based on the entire sound insulating layer.

The described embodiments relate generally to asymmetric liquid crystal panels with improved properties and tailored characteristics, including insulated glazing units and liquid crystal windows incorporating such panels. A liquid crystal cell having thin glass is incorporated into an asymmetric thin liquid crystal panel comprising a pane bonded to the first sheet of the liquid crystal cell via an adhesive layer bonding the first sheet to the pane wherein the liquid crystal material is controllable to adjust a transmittance of the liquid crystal panel.

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 includes a first resin layer containing a thermoplastic resin and a plasticizer and a second resin layer containing a thermoplastic resin, a plasticizer and inorganic particles, and the first resin layer being arranged on a first surface side of the second resin layer, wherein a gradation part being a region where the parallel light transmittance is greater than 30% and less than 60% and being a region where the thickness of the second resin layer is continuously decreased in the direction orthogonal to the thickness direction of the interlayer film at the time of preparing the laminated glass exists, and the complex viscosity at 200° C. of the second resin layer is greater than or equal to 0.7 times and less than or equal to 2 times the complex viscosity at 200° C. of the first resin layer.

Provided is an interlayer film for laminated glass capable of effectively enhancing the sound insulating property at 6300 Hz while effectively preventing deterioration in sound insulating property at 3150 Hz in laminated glass. An interlayer film for laminated glass according to the present invention has a one-layer structure or a two or more-layer structure and includes a resin layer containing a resin and a plasticizer. The interlayer film has a resonance frequency X of 550 Hz or more and 740 Hz or less, a loss factor Y in a secondary mode of 0.35 or more, and satisfies a formula: Y>0.0008X−0.142 in a measurement of resonance frequency in a secondary mode in a damping test for laminated glass according to a central exciting method of laminated glass, when the laminated glass is obtained by arranging the interlayer film between two glass plates of 25 mm wide, 300 mm long and 2 mm thick.

There is provided a multi-layered glass in which two glass plates are placed such that they form a space via a spacer placed in a peripheral part of glass plates, wherein at least one low-emissivity film, which includes a plastic film and a Fabry-Perot interference filter formed on one side or both sides of the plastic film, is placed in the space, whereby space is divided; each of gaps between the glass plates and the spacer, and between the low-emissivity film and the spacer is sealed with a primary sealing material; a gap between the glass plates outside of the primary sealing material and the spacer is sealed with a secondary sealing material; and a reinforcement material is placed inside of the secondary sealing material. The multi-layered glass has a good appearance and excellent heat-insulating properties.

The present invention provides a heat ray cutting film comprising, on a substrate, at least two layers of a light reflecting layer X1 and a light reflecting layer X2 obtained by fixing cholesteric liquid crystalline phases, and an infrared ray absorbing layer comprising composite tungsten oxide microparticles, wherein the light reflecting layer X1 and the light reflecting layer X2 reflect lights circularly polarized in directions opposite to each other, reflection center wavelengths of the light reflecting layer X1 and the light reflecting layer X2 are within a range of 800 to 1100 nm and are substantially equal to each other, and total reflectivity of all light reflecting layers obtained by fixing cholesteric liquid crystalline phases is 80% or more. The heat ray cutting film of the present invention has high transparency and high heat shielding performance.

To provide a laminated glass in which color shading of an optical member is reduced, and a method for producing it.

A laminated glass comprising

a first glass plate,

a second glass plate facing the first glass plate, and

between the first glass plate and the second glass plate, a light control member to which a power feeder is connected, a bonding portion and a sealing member,

wherein the sealing member overlaps with at least a part of the periphery of the first glass plate, in a plan view,

the bonding portion is in contact with the first glass plate, the second glass plate, and a first principal surface, a second principal surface and side surfaces of the light control member, and

the bonding portion contains a curable transparent resin.

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.