Sekisui Chemical Co., Ltd.

Ryuta Tsunoda

Kazuhiko Nakayama

Yuusuke Oota

Daizou Ii

Juichi Fukatani

Yasuyuki Izu

Hirofumi Kitano

Kouhei Yamaguchi

Hiromitsu Nishino

Takazumi Okabayashi

Moyuru Okajima

Masaki Matsudou

Keiichi Osano

Reiko Kishida

Daizou Il

Provided is an interlayer film for laminated glass with which double images in laminated glass can be significantly suppressed. An interlayer film for laminated glass according to the present invention has one end, and the other end having a larger thickness than the one end, the interlayer film has a region for display corresponding to a display region of a head-up display, and when first partial wedge angles θ1 are calculated in respective first partial regions of 80 mm in the direction connecting the one end and the other end centered at respective selected points, second partial wedge angles θ2 are calculated in respective second partial regions of 40 mm in the direction connecting the one end and the other end centered at respective selected points, and |θ1-θ2| is calculated from θ1 and θ2 in the first partial region and the second partial region centered at the same point in the direction connecting the one end and the other end, a maximum value among all values of |θ1-θ2| is 0.2 mrad or less, and the interlayer film as a whole has a wedge angle of 0.1 mrad or more.

Intermediate film for laminated glasses, and laminated glass

Provided is an interlayer film for laminated glass capable of enhancing the weatherability. The interlayer film for laminated glass according to the present invention contains an anthraquinone dye and a perinone dye.

Intermediate film for laminated glass, and laminated glass

Provided is an interlayer film for laminated glass with which double images in laminated glass can be significantly suppressed. An interlayer film for laminated glass according to the present invention has one end, and the other end having a larger thickness than the one end, and has a region for display corresponding to a display region of a head-up display, and when points are selected at 2 mm intervals while taking a position of 2 cm from an end part of the one end side toward the other end of the region for display as a start point, and a position of 2 cm from an end part of the other end side toward the one end of the region for display as an end point, and first partial wedge angles are calculated in respective first partial regions of 40 mm in the direction connecting the one end and the other end centered at respective selected points, an absolute value of difference between the maximum value among all the first partial wedge angle values and the minimum value among all the first partial wedge angle values is 0.4 mrad or less, and the interlayer film as a whole has a wedge angle of 0.1 mrad or more.

There is provided an interlayer film for laminated glass with which the visibility can be made uniform over the whole area of laminated glass. The interlayer film for laminated glass according to the present invention contains a thermoplastic resin and a heat shielding compound and has one end and the other end being at the opposite side of the one end and having a thickness thicker than the one end, the absolute value of a difference between the thickness of a thickest portion and the thickness of a thinnest portion is 0.1 mm or more, and in a sheet of laminated glass prepared by sandwiching the interlayer film between two sheets of heat ray-absorbing plate glass with a thickness of 2.1 mm, the absolute value of a difference between the visible light transmittance at the thickest portion of the interlayer film and the visible light transmittance at the thinnest portion of the interlayer film is 4% or less.

Interlayer film for laminated glass and laminated glass

Provided is an interlayer film for laminated glass with which double images in laminated glass can be significantly suppressed. An interlayer film for laminated glass according to the present invention has one end, and the other end having a larger thickness than the one end, the interlayer film has a region for display corresponding to a display region of a head-up display, and when first partial wedge angles &#x3b8;1 are calculated in respective first partial regions of 80 mm in the direction connecting the one end and the other end centered at respective selected points, second partial wedge angles &#x3b8;2 are calculated in respective second partial regions of 40 mm in the direction connecting the one end and the other end centered at respective selected points, and |&#x3b8;1&#x2212;&#x3b8;2| is calculated from &#x3b8;1 and &#x3b8;2 in the first partial region and the second partial region centered at the same point in the direction connecting the one end and the other end, a maximum value among all values of |&#x3b8;1&#x2212;&#x3b8;2| is 0.2 mrad or less, and the interlayer film as a whole has a wedge angle of 0.1 mrad or more.

There is provided an interlayer film for laminated glass with which the adhesive force between the interlayer film and a laminated glass member of the laminated glass can be effectively improved. The interlayer film for laminated glass according to the present invention has one-layer structure or a two or more-layer structure, is provided with a first layer containing a thermoplastic resin, a plasticizer and a metal element as a surface layer of the interlayer film, and the first layer is a first layer having a contact angle of greater than 40.1&#xb0; when measured by a sessile drop method using diiodomethane or a first layer having a contact angle of greater than 54.2&#xb0; when measured by a sessile drop method using ethylene glycol.

Intermediate film for laminated glass, method for manufacturing intermediate film for laminated glass, and laminated glass

Provided is an interlayer film for laminated glass which has high heat shielding properties, a high visible transmittance, and excellent light resistance which enables retention of the high visible transmittance for a long period of time. The interlayer film for laminated glass according to the present invention has an interlayer film for laminated glass with a single layer structure or a laminated structure of two or more layers, the interlayer film for laminated glass according to the present invention comprises a first layer, and the first layer contains a polyvinyl acetal resin; a plasticizer; a tungsten oxide particle; a magnesium salt of an organic acid having a branched structure; and a metal salt of a C2 to C8 organic acid, other than the magnesium salt of an organic acid having a branched structure.

Interlayer for laminated glass, 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.

Interlayer for laminated glass and laminated glass

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 thickness of one end thinner than a thickness of the other end at the opposite side of the one end and includes a thermoplastic resin, an ultraviolet ray screening agent and tungsten oxide particles, and the ultraviolet ray screening agent is a benzotriazole-based ultraviolet ray screening agent.

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.

There is provided an interlayer film for laminated glass enabling the laminated glass to have low transmittance for a light ray with a wavelength of 430 nm, and furthermore, being capable of achieving low excitation purity thereof. The interlayer film for laminated glass according to the present invention includes a thermoplastic resin, at least one first compound selected from yellow color-based coloring matter and red color-based coloring matter and at least one second compound selected from blue color-based coloring matter and purple color-based coloring matter, the ratio of the amount of the first compound to the amount of the second compound is 0.5 or more, and each of the blue color-based coloring matter and the purple color-based coloring matter is a kind of coloring matter with a maximum absorption wavelength of 550 nm or more and 750 nm or less.

Intermediate film for laminated glass having coloring matter with specified maximum absorption wavelengths, and laminated glass

There is provided an interlayer film for laminated glass with which the visible light transmittance and the heat resistance of the laminated glass can be heightened. The interlayer film for laminated glass according to the present invention includes an organic coloring matter containing a transition element, a metal element which is different from a metal element contained in a metal oxide particle and different from a transition element, a thermoplastic resin and a plasticizer.

Multilayer interlayer film having infrared ray reflection layer and thermoplastic resin, and laminated glass having such film

There is provided an interlayer film for laminated glass with which any of the anti-glare property, light resistance and visibility in a dark place of laminated glass can be enhanced. The interlayer film for laminated glass according to the present invention includes a thermoplastic resin and has a ratio L's/Ls of the relative scotopic vision luminance L&#x2032;s to the relative photopic vision luminance Ls to be greater than or equal to 1.0 at the time of preparing laminated glass with two sheets of clear glass in accordance with JIS R3202 (1996), and the interlayer film for laminated glass according to the present invention preferably includes at least one kind of ingredient among a phthalocyanine compound, a naphthalocyanine compound, an anthracyanine compound and an indanthrene compound which have a maximum absorption wavelength greater than or equal to 550 nm and less than or equal to 750 nm.

Growing community of inventors

Kouka, Japan

Ryuta Tsunoda