A thermochromic, near infrared (NIR) absorbing interlayer. The interlayer includes a NIR-absorbing substance dispersed or dissolved in a polymer matrix and a thermochromic material or system. The interlayer has an internal visible light transmission above 50% and an internal solar energy transmission below 55% when the interlayer is at 15° C. and an internal visible light transmission below 20% and an internal solar energy transmission below 20% when the interlayer is at 75° C. The internal haze of the interlayer is below 3.5%.

There is provided an interlayer film for laminated glass with which a low yellow index value, low excitation purity and high heat shielding properties can be achieved in spite of the thickness varying with places. The interlayer film for laminated glass according to the present invention has a two or more-layer structure, has a thickness of one end thinner than a thickness of the other end at the opposite side of the one end and includes a first layer containing a thermoplastic resin and a second layer containing a thermoplastic resin, the difference between the maximum thickness and the minimum thickness in the first layer is smaller than the difference between the maximum thickness and the minimum thickness in the second layer, and the first layer contains a heat shielding compound.

A heat ray shielding film is disclosed, including composite tungsten oxide particles; and an ionomer resin. The composite tungsten oxide particles are expressed by a general formula M.sub.xWO.sub.y (where M denotes one or more kinds of elements selected from Cs, Rb, K, Tl, In, Ba, Li, Ca, Sr, Fe, Sn, Al, Cu, and Na, and 0.1≦x≦0.5 and 2.2≦y≦3.0).

An interlayer film for laminated glass of the present invention comprises at least an absorption region in which a skin absorption energy rate (X1) of a laminated glass is 25% or less, provided that the laminated glass is produced using two clear glass plates having a solar transmittance of 87.3% based on JIS R 3106.

The present vehicle includes a projection device installed in the vehicle; and a laminated glass configured to transmit a light beam emitted from the projection device to a vehicle exterior side. The laminated glass includes a vehicle-interior-side glass plate; a vehicle-exterior-side glass plate; an interlayer bonding the vehicle-interior-side glass plate and the vehicle-exterior-side glass plate; and a scattering layer arranged between the vehicle-exterior-side glass plate and the vehicle-interior-side glass plate, and in contact with the interlayer, the scattering layer being configured to be irradiated with the light beam. A relationship between visible light transmittance Tv (%) of the laminated glass and an angle of incidence θ (degrees) to the scattering layer of each ray included in the light beam incident on the scattering layer satisfies Formula (1) described in the description.

A solar radiation shielding laminated structure, having high visible light transmission property and solar radiation shielding property, low haze value, and high environmental stability with inexpensive production cost, using solar radiation shielding fine particles having high visible light transmission property and excellent solar shielding property and weather resistance, and provides a solar radiation shielding laminated structure in which an interlayer is sandwiched between two laminated sheets; the interlayer having, as an intermediate film, one or more kinds selected from a resin sheet containing solar radiation shielding fine particles and a resin film containing solar radiation shielding fine particles, the laminated sheets being selected from a sheet-glass not containing solar radiation shielding fine particles and a resin board not containing solar radiation shielding fine particles; wherein the solar radiation shielding fine particles are solar radiation shielding fine particles containing calcium lanthanum boride fine particles represented by general formula CaxLa1-xBm.

A multilayer interlayer containing a specified ionomer skin layer and an acoustic damping intermediate layer, and laminate containing such interlayer are provided, wherein the laminate has a desirable combination of sound insulating, flexural strength and optical properties suitable for use in transportation and architectural end uses.

There is provided an interlayer film for laminated glass which is high in heat shielding properties, is low in excitation purity and has a low YI value. The interlayer film 1 for laminated glass according to the present invention includes an infrared ray reflection layer 2 for reflecting infrared rays, a first resin layer 3 containing a thermoplastic resin and a second resin layer 4 containing a thermoplastic resin, the first resin layer 3 is arranged on a first surface 2a side of the infrared ray reflection layer 2, the second resin layer 4 is arranged on a second surface 2b side of the infrared ray reflection layer 2, and the second resin layer 4 contains both of tin-doped indium oxide particles and tungsten oxide particles.

Interlayers that exhibit superior properties and that provide desirable optical properties when incorporated into laminates, such as windshields, windows or other glazings containing a holographic optical element (HOE) are disclosed. The interlayers, when used in a laminate in conjunction with the HOE film, maintain and do not detract from the HOE film properties.

There is provided an interlayer film for laminated glass with which the haze value of laminated glass can be lowered and the releasability of a lamination glass member from the interlayer film can be made moderately high. The interlayer film for laminated glass according to the present invention is a single-layered interlayer film provided with only a first layer or is a multi-layered interlayer film provided with a first layer and another layer, the first layer contains no magnesium or contains magnesium in a content of 50 ppm or less and the first layer contains a phosphorus compound having a polyoxyalkylene group or a silane compound having a polyoxyalkylene group, the first layer contains heat shielding particles in the case of the interlayer film provided with only the first layer, and at least one layer in the interlayer film contains heat shielding particles in the case of the interlayer film provided with the first layer and another layer.