Provided is an interlayer film for laminated glass with which the sound insulating properties of laminated glass can be enhanced. The 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 first layer having a glass transition temperature in dynamic viscoelasticity measurement of 30 C. or more and 10 C. or less, and when a glass transition temperature in unit C. of the first layer is referred to as Tg, a loss tangent tan of the first layer at Tg satisfies both of the following formula (1) and formula (2):

(Loss tangent tan of the first layer at Tg)1.55(1)

(Loss tangent tan of the first layer at Tg)=A(first storage modulus G of the first layer at Tg10 C./second storage modulus G of the first layer at Tg+10 C.)+B(2) in the above formula (2), A is 0.003 or more and 0.04 or less, and B is 0.7 or more and 1.4 or less.

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.

Provided is a thermoplastic resin film capable of controlling the discoloration due to color staining, and capable of controlling occurrence of color irregularity after irradiation with light irrespectively of inclusion of dyes. A thermoplastic resin film according to the present invention includes a thermoplastic resin and a dye, and the thermoplastic resin film has a color difference E of 4.3 or less, determined by measuring change in color tone before and after application of load on a polyvinyl butyral resin film for color staining test in accordance with JIS K8781-4:2013 after applying a load of 200 g/cm.sup.2 at 23 C. and a humidity of 25% for 1 week on a laminate made up of the thermoplastic resin film, the polyvinyl butyral resin film for color staining test, and a green glass in accordance with JIS R3208 having a thickness of 2 mm laminated in this order on a rubber sheet having a hardness of 60.

Provided is a thermoplastic resin film capable of controlling the occurrence of color irregularity after irradiation with light. The thermoplastic resin film according to the present invention contains a thermoplastic resin, a pigment, and a hindered amine light stabilizer.

An interlayer film for laminated glass that has a one-layer structure or a two or more layer-structure includes a first layer containing a thermoplastic resin, wherein the first layer has a glass transition temperature of 10 C. or lower, and wherein the interlayer film has an equivalent stiffness of 2.4 MPa or greater at 25 C.

A near-infrared shielding ultrafine particle dispersion body, and others, having excellent near-infrared shielding function, low haze value and excellent design, with suppressed change in color tone during outdoor use and blue haze phenomenon, using near-infrared shielding ultrafine particles transparent in visible light range, having excellent near-infrared shielding properties, and produced with high productivity, and a near-infrared shielding ultrafine particle dispersion body in which ultra-fine particles having near-infrared shielding properties are dispersed in solid medium, wherein the ultrafine particles are composite tungsten oxide ultrafine particles represented by general formula MxWyOz, and have XRD peak top intensity ratio value of 0.13 or more based on XRD peak intensity ratio value of 1 on plane of silicon powder standard sample, and solid medium contains resin binder and weather resistance improver, and weather resistance improver includes at least one selected from benzotriazole-based UV absorber, triazine-based UV absorber, and benzophenone-based UV absorber.

Provided herein are polyvinylacetal compositions, monolayer and multilayer films and sheets (interlayers), and laminates made with these interlayers, which have reduced edge yellowing after exposure to heat, which is accomplished by adding an oligomeric hindered amine light stabilizer with antioxidant functionality at levels generally about 0.2 percent by weight or less, wherein substantially no additional antioxidant or other HALS is present.

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 glazing applicable to multiple illumination products comprises a first glass substrate having first and second surfaces, a second glass substrate having third and fourth surfaces, a polymer interlayer laminated between the first and second substrates, and a coating including a first luminescent material and being applied on one of the third and fourth surfaces of the second glass substrate, for emitting light to both of the interior and exterior.

Provided are a film and an electric device comprising the same. The film comprises at least one modified polyolefin resin layer. A resin forming the modified polyolefin resin layer comprises 1-100% of modified polyolefin resin. A main chain in the modified polyolefin resin is an ethylene--olefin copolymer. A grafted branched chain in the modified polyolefin resin is selected from a compound formed by a vinyl monomer comprising one or more of anhydride group, hydroxyl, ester group, carbonyl, acylamino, pyridyl, epoxy, pyrrolidonyl and glycidyl. A molecular weight of the grafted branched chain is 150-8000 g/mol. The film prepared from the modified POE layer with the main chain and the grafted branched chain has excellent anti-PID performance. The layers have a better adhesive property without a laminated interface therebetween. The co-extruded film further has an excellent water vapor barrier property, a relatively high insulating property and a relatively high light transmittance.