The present invention provides an interlayer film for laminated glass which has excellent sound insulating properties even when the thickness is reduced, and also has a low degree of orientation and low shrinkability.

The invention relates to an interlayer film for laminated glass which includes at least one layer A containing a thermoplastic elastomer, wherein the thermoplastic elastomer includes a hard segment block and a soft segment block, the layer A has a sea-island phase separated structure in which the hard segment block is included as an island component and the soft segment block is included as a sea component, and the degree of orientation (1) defined by (maximum intensity valueminimum intensity value)/(maximum intensity value+minimum intensity value) based on the maximum intensity value and the minimum intensity value in an arbitrary azimuth range of 180 including the azimuth at which the intensity reaches the maximum in the azimuthal intensity distribution of periodic scattering or coherent scattering by the hard segment block or the soft segment block obtained for the layer A by small-angle X-ray scattering measurement is 0.9 or less.

An asymmetric glazing laminate (34) that includes an outer transparency (36) and an inner transparency (50) that are maintained together by an interlayer (44). Outer transparency (36) has a nominal thickness (42) of 2.1 mm and inner transparency (50) has a nominal thickness of 1.2 mm. The asymmetric glazing has greater stone impact resistance and lower per unit weight than symmetric glazing laminate (10) in which the outer and inner transparencies (12 and 26) each have nominal thickness of 2.1.

A process for making a symmetrical glazing that has the same nominal weight as an asymmetrical glazing that has been determined to afford enhanced glazing strength, glazing rigidity, or stone impact resistance wherein the symmetric glazing has improved acoustic attenuation over coincidence frequencies of the asymmetric glazing design.

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.

In certain example embodiments, light emitting diodes (LEDs) may be disposed on a deformable and flexible backbone sheet and chained together in an array, e.g., via flexible wiggle wires. Such flexible wiggle wires may also provide an electrical connection to an external power source. An optical out-coupling layer stack (OCLS) system may help serve as an index matching layer, heat sink, tendue conserver, etc. The backbone may be formed to a shape tailored to its ultimate application. Applications may include, for example, automotive (such as Center High Mounted Stop Lamp (CHMSL) applications), lighting, signage, and/or other applications. In an example CHMSL application, the deformable sheet with the LED array thereon has a step, sinusoidal, or other shape matched to the angle and/or curvature of the glass such that the LEDs produce light primarily in a direction parallel to a surface on which a vehicle is located.

A laminated glass capable of producing an observable pattern when edge-illuminated contains two sheets of glass adhered by an adhesive film of at least one film B containing a polyvinyl acetal PB and at least one plasticizer WB; and at least one film A or an area thereof containing a polyvinyl acetal PA and optionally at least one plasticizer WA, wherein the refractive indices of film A and film B differ by at least 0.0002.

A vehicle luminous signaling glazing unit forming a front windshield, includes a first glazing pane, forming the exterior glazing pane, with first and second main faces F1, F2; a lamination interlayer made of a polymeric material of thickness e1 of at most 1.8 mm; and a second glazing pane, forming the interior glazing pane, with third and fourth main faces F3, F4, the face F2 and the face F3 being the internal faces of the laminated glazing unit; and a set of diodes on a front face of a PCB board, the assembly being of thickness et2?e1, each diode emitting in the direction of the interior glass, and each diode having an edge face. For each of the diodes, the lamination interlayer comprises a through-aperture encircling the edge face of the diode, and the lamination interlayer is between face F3 and the front face of the PCB board.

The present invention aims to provide an interlayer film for a laminated glass having recesses in the shape of engraved lines on both surfaces to exhibit excellent deaeration properties in production of a laminated glass and suppressing formation of a moire pattern when unwound from a rolled body thereof. The present invention also aims to provide a laminated glass including the interlayer film for a laminated glass, a method for producing an embossing roll suitably used for production of the interlayer film for a laminated glass, and a method for producing the interlayer film for a laminated glass. The present invention relates to an interlayer film for a laminated glass, having a large number of recesses on both surfaces, the recesses each having a groove shape with a continuous bottom and being regularly adjacent and parallel to each other, the interlayer film having a glossiness on a surface with the large number of recesses measured in conformity with JIS Z 8741-1997 of higher than 3% or a haze value measured in conformity with JIS K 7105-1981 of 87% or lower.

The present disclosure is directed to a curved automotive laminated glazing with an opening, named cutout, in the performance plastic interlayer, such that the edges of said cutout has improved optical properties. Conventionally an opening must be provided onto the performance plastic interlayer such as UV absorbing. IR reflective or other types of solar performance interlayers to aiming to remove any optical disruptions. However, it was discovered that the geometry of the cutout in the performance interlayer plays an important role in the optical distortion measured in the center of the field of view. Therefore, the present invention suggests the use of a cutout geometry having round corners which decrease the optical distortion in the field of view by a factor of three.

An automotive window laminate structure, including first and second parallel and mutually spaced apart glass sheets and a thermoplastic laminated sheet structure. The laminated sheet structure is placed between the first and second glass sheet, and the laminated sheet structure includes at least one functional layer with an upper and lower surface, at least two bonding layers, with the bonding layers covering the upper and lower surfaces of the functional layer. A portion of the bonding layers extends beyond the perimeter of the functional layer and an encapsulation layer is located between the first and second glass sheet, such that the encapsulation layer extends along the perimeter of the functional layer.