Sekisui Chemical Co., Ltd.

Hiromitsu Nishino

Jun Ishida

Yuusuke Oota

Koji Kido

Etsurou Hirota

Susumu Hayase

Hideto Yoshimoto

Ryuta Tsunoda

Masashi Yanai

Koji Kumakura

Aya Itokawa

Provided is an interlayer film for laminated glass capable of enhancing the sound insulating property of the laminated glass. An interlayer film for laminated glass according to the present invention is an interlayer film, for laminated glass, having a two or more-layer structure, the interlayer film includes one end and the other end being on an opposite side of the one end and having a thickness larger than a thickness of the one end, at least one layer having a glass transition temperature of less than 15° C., and a region where a value of Y/X is 0.12 or more when the interlayer film has a thickness of X μm and a total thickness of the at least one layer having a glass transition temperature of less than 15° C. is denoted by Y μm, and the interlayer film has an average thickness of each surface layer, in a region from a position of 100 mm to a position of 400 mm from the one end toward the other end, of less than 300 μm.

Laminated glass interlayer film and laminated glass

Provided is an interlayer film for laminated glass capable of suppressing color migration. In an interlayer film for laminated glass according to the present invention, when the interlayer film is arranged between two sheets of clear glass conforming to JIS R3202:1996 to obtain a laminated glass X, and parallel light transmittance is measured for the obtained laminated glass X, the interlayer film has a colored region with a parallel light transmittance of less than 60%, and a transparent region with a parallel light transmittance of 60% or more, the interlayer film has an average thickness in the colored region smaller than an average thickness in the transparent region, and the interlayer film has an absolute value of difference between the average thickness in the colored region and the average thickness in the transparent region of 10 μm or more.

Interlayer film for laminated glass, and laminated glass

There is provided an interlayer film for laminated glass with which the production efficiency of laminated glass can be enhanced. The interlayer film for laminated glass according to the present invention includes an interlayer film body for lamination glass, and a printed part displayed by printing on a first surface of the interlayer film body for laminated glass, and the printed part is a guide for a bonding position to a lamination glass member, or product information of the interlayer film for laminated glass.

Laminated glass interlayer, roll body, and laminated glass manufacturing method

Provided is an interlayer film for laminated glass with which distortion in the appearance of the laminated glass can be significantly 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, the other end has a thickness that is larger than a thickness of the one end, the interlayer film as a whole has a wedge angle of 0.1 mrad or more, and the following absolute value A in all sections A located every 150 mm in the following measurement of partial wedge angles is 0.4 mrad or less.

Provided is an interlayer film for laminated glass with which transmitted double images in the laminated glass can be suppressed. An 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, and the other end has a thickness larger than a thickness of the one end, and when an inclination of approximate line A and a maximum value of absolute values of deviation in partial wedge angle are calculated according to determination of a specific formula of approximate line A and calculation of deviation in partial wedge angle, the inclination of approximate line A is &#x2212;0.05 mrad/m or less in at least one section A, and the maximum value of absolute values of deviation in partial wedge angle is 0.2 mrad or less.

Interlayer film for laminated glass, roll, and laminated glass

Provided is an interlayer film for laminated glass with which double images in laminated glass can be significantly suppressed. The interlayer film for laminated glass according to the present invention is an interlayer film for use in a laminated glass that is a head-up display, the interlayer film has one end, and the other end being at the opposite side of the one end, the other end has a thickness larger than a thickness of the one end, the interlayer film has a region for display corresponding to a display region of the head-up display, and when three regions obtained by equally dividing the region for display into three in a direction connecting the one end and the other end are named a first partial region for display, a second partial region for display, and a third partial region for display in sequence from the one end side, as to partial wedge angle A, B, and Cin the first, second, and third partial regions for display, and partial wedge angle &#x3c6;in the region for display satisfy, |A&#x2212;&#x3c6;| is 0.05 mrad or less, |B&#x2212;&#x3c6;| is 0.05 mrad or less, and |C&#x2212;&#x3c6;| is 0.05 mrad or less.

Intermediate film for laminated glass and laminated glass

An interlayer film for laminated glass is disclosed which contains a thermoplastic resin and has a portion where the amount of increase in the thickness is increased in a direction from one end to the other end in the region where the thickness is increased, or has a portion where the amount of increase in the thickness is decreased in a direction from one end to the other end in the region where the thickness is increased, and the ten-point average roughness Rz of the surface at a center position of the portion where the amount of increase in the thickness is increased, or the portion where the amount of increase in the thickness is decreased is 20 &#x3bc;m or more.

Interlayer for laminated glass, and laminated glass

Provided is an interlayer film for laminated glass capable of reducing the variation in double images in laminated glass in the direction perpendicular to the direction connecting one end and the other end of the interlayer film, and effectively suppressing double images. An interlayer film for laminated glass according to the present invention has one end and the other end being at the opposite side of the the one end, the other end has a thickness of larger than a thickness of the one end, the interlayer film for laminated glass as a whole has a wedge angle of 0.1 mrad or more, and the interlayer film for laminated glass has a thickness varying region in a region extending in the direction perpendicular to the direction connecting the one end and the other end of the interlayer film, having a standard deviation of 11 partial wedge angles measured by the following measuring method of 0.040 mrad or less.

Intermediate film for laminated glass, roll body, and laminated glass

Provided is an interlayer film for laminated glass capable of suppressing multiple images. An interlayer film for laminated glass according to the present invention is used while it is arranged between a first lamination glass member having a wedge angle of 0.10 mrad or more, and a second lamination glass member; the interlayer film has a wedge angle of less than 0.10 mrad, and has a maximum value of partial wedge angles A of 0.15 mrad or less when the partial wedge angles A of the interlayer film are measured in 'the step 1 of selecting points A at 2-mm intervals starting at the position of 20 cm from the one end toward the other end of the interlayer film and ending at the position of 20 cm from the other end toward the one end of the interlayer film' and 'the step 2 of calculating the partial wedge angles A of the interlayer film in each partial region A of 80 mm centered at each of the points A in the direction connecting the one end and the other end' in this order.

Provided is a laminated glass capable of suppressing multiple images and enhancing the heat shielding properties, and enhancing the uniformity of heat shield properties or color tone between one end side and the other end side of the laminated glass. A laminated glass according to the present invention has one end, and the other end being at the opposite side of the one end and having a thickness larger than a thickness of the one end; the laminated glass includes a first lamination glass member, a second lamination glass member, and an interlayer film arranged between the first lamination glass member and the second lamination glass member; the first lamination glass member has a wedge angle of 0.10 mrad or more; the wedge angle of the first lamination glass member is equal to a wedge angle of the interlayer film or larger than the wedge angle of the interlayer film, and the interlayer film contains a heat shielding substance.

Laminated glass

There is provided an interlayer film for laminated glass capable of being enhanced in handling properties at the time of preparing laminated glass. 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, the thickness of the other end is larger than the thickness of the one end, and the glossiness on the surface of a maximum thickness part is 3% or more.

Interlayer for laminated glass, roll body, and laminated glass

There is provided an interlayer film for a laminated glass having improved appearance which has a MD and TD direction; and one end, and another end being opposite side of and thicker than the one end. The one end and other end are positioned on both sides of the interlayer film in the TD direction. When the distance between the one end and other end is X, the absolute value for the difference between the largest and smallest thermal shrinkage ratios from among three thermal shrinkage ratios is 15% or less. The three thermal shrinkage ratios are positioned from the one end towards the other end in MD direction with a first thermal shrinkage ratio at 150&#xb0; C. at a first position at 0.05X, a second thermal shrinkage ratio at 150&#xb0; C. at a second position at 0.5X, and a third thermal shrinkage ratio at 150&#xb0; C. at a third position at 0.95X.

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Kouka, Japan

Hiromitsu Nishino