Sekisui Chemical Co., Ltd.

Denki Kagaku Kogyo Kabushiki Kaisha

Admatechs Company Limited

Denka Company Limited

Tatsuya Iwamoto

Nami Minakuchi

Kohei Kani

Yuuma Takeda

Michio Shimamoto

Sinyul Yang

Shota Matsuda

Yuki Ishikawa

Shinji Kawada

Yuu Sakamoto

Shougo Yoshida

Daizou Ii

Jun Sasaki

Kazuhiko Nakayama

Kinryou Chou

Ryousuke Komatsu

Yuji Uchimura

Etsurou Hirota

Hirohisa Otake

Shingo Okazawa

Nobuyuki Tanno

Nobuo Matsuki

Yuji Oono

Takao Hashimoto

Shogo Yoshida

Yuuki Okada

Provided is an interlayer film for laminated glass capable of suppressing the generation of an optical strain in laminated glass, and enhancing the damping performance of laminated glass. An interlayer film for laminated glass according to the present invention is an interlayer film for laminated glass having a one-layer or two or more-layer structure, and includes a first layer containing a resin, and when the interlayer film is arranged between two sheets of clear float glass having a thickness of 2.5 mm to obtain a laminated glass X with a size of 150 mm in length and 300 mm in width, and the obtained laminated glass X is subjected to a specific measurement of optical strain, an optical strain value is 3.00 or less, whereas when the interlayer film is arranged between two sheets of clear float glass having a thickness of 2.1 mm to obtain a laminated glass Y having a size of 950 mm in length and 1500 mm in width, and the obtained laminated glass Y is subjected to a specific measurement of damping ratio, a damping ratio at a resonance frequency of 50 Hz or more and 80 Hz or less is 5.0% or more.

Intermediate film for laminated glass, and laminated glass

There is provided an inter layer film for laminated glass with which the flexural rigidity 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 is provided with a first layer containing a polyvinyl acetal resin and a plasticizer, and the half-value width of the hydroxyl group of the polyvinyl acetal resin contained in the first layer is less than or equal to 250 cmand the content of the plasticizer contained in the first layer relative to 100 parts by weight of the polyvinyl acetal resin contained in the first layer is greater than or equal to 5 parts by weight and less than 30 parts by weight, or the half-value width of the hydroxyl group of the polyvinyl acetal resin contained in the first layer is greater than 250 cm.

Interlayer film for laminated glass, and laminated glass

Provided is an interlayer film for laminated glass capable of enhancing the sound insulating property of laminated glass over a wide resonance frequency region. An interlayer film for laminated glass according to the present invention has a one-layer or two or more-layer structure, and when the interlayer film is arranged between two sheets of clear float glass having a width of 25 mm, a length of 300 mm and a thickness of 2 mm to obtain a laminated glass X, a loss factor at a second resonance frequency, a loss factor at a third resonance frequency, and a loss factor at a fourth resonance frequency measured by a central exciting method at 20&#xb0; C. in mechanical impedance measurement in accordance with ISO16940 of the laminated glass X are respectively 0.4 or more.

A plasticizer composition to be used in a transparent resin for optics, wherein the plasticizer composition includes: a composite aggregated particulate material; and a liquid plasticizer having dispersed therein the composite aggregated particulate material. The composite aggregated particulate material includes an inorganic aggregate material being a granular material formed of aggregates of an inorganic particulate material formed of silica having a specific surface area particle diameter of not less than 0.8 nm and not greater than 80 nm, and an organic coating material formed of an organic matter coating a surface of the inorganic aggregate material. A mass of the organic coating material is not less than 0.8% and not greater than 80% with respect to a sum of a mass of the inorganic aggregate material and a mass of the organic coating material. Both mechanical properties and optical properties are realized by mixing the plasticizer composition.

Plasticizer composition, method for producing same, transparent film, and laminated glass

Provided is an interlayer film for laminated glass capable of enhancing the sound insulating properties of laminated glass, and making foaming less likely to occur in an end part. The interlayer film for laminated glass according to the present invention includes a first layer, and a lateral covering part that covers at least part of a lateral part of the first layer, and the first layer has a shear elastic modulus at 25&#xb0; C. of 0.17 MPa or less, and the lateral covering part has a shear elastic modulus at 25&#xb0; C. of more than 1 MPa.

Laminated glass intermediate film and laminated glass

Provided is an interlayer film for laminated glass capable of enhancing the sound insulating property over a wide range of temperature from 0&#xb0; C. to 40&#xb0; C. An interlayer film for laminated glass according to the present invention is an interlayer film for laminated glass having a one-layer structure or a two or more-layer structure, the interlayer film includes a resin layer, and a ratio of a first storage modulus G' at a peak temperature of a maximum peak of tan &#x3b4; to a second storage modulus G&#x2032; at a temperature 100&#xb0; C. higher than the peak temperature of the maximum peak of tan &#x3b4; is 50 or more and 500 or less in viscoelasticity measurement at a frequency of 1 Hz in a shearing mode.

An interlayer film for laminated glass has enhanced sound insulating properties at 30&#xb0; C., and includes first and second layers each containing a thermoplastic resin and a plasticizer. When an absolute value of a difference in cloud point using the thermoplastic resin and plasticizer in each of the first and second layers is Xa, and a content in parts by weight of the entire plasticizer in the interlayer film relative to 100 parts by weight of the entire thermoplastic resin in the interlayer film Z, the interlayer film satisfies the first constitution: 'Xa&#x2264;115 and Z&#x2264;&#x2212;0.16Xa+59' and/or the second constitution: 'the thermoplastic resin in the first layer is polyvinyl acetal resin, and when the acetylation degree on a mole percent basis of the polyvinyl acetal resin in the first layer is represented by Y, Y&#x2265;2 and Z&#x2264;&#x2212;0.16Xa&#x2212;0.2Y+59'.

Interlayer for laminated glass, and laminated glass

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. The first layer may have a glass transition temperature of 10&#xb0; C. or lower and the inter layer film may have an equivalent stiffness of 2.4 MPa or greater at 25&#xb0; C.

There is provided an interlayer film for laminated glass making a gap difficult to be generated at an end part of the sheet of laminated glass and enabling an increase in the YI value measured at the end part of the sheet of laminated glass to be suppressed. The interlayer film for laminated glass according to the present invention is provided with a first layer which contains a polyvinyl acetal resin and a plasticizer and a second layer which is arranged on a first surface side of the first layer and contains a polyvinyl acetal resin and a plasticizer, the first layer further contains a hindered amine light stabilizer having an alkyl group to bond to the nitrogen atom of a piperidine structure or an alkoxy group to bond to the nitrogen atom of a piperidine structure, and the glass transition temperature of the second layer is higher than or equal to 32&#xb0; C.

Provided is an interlayer film for laminated glass capable of effectively enhancing the sound insulating property at 6300 Hz while effectively preventing deterioration in sound insulating property at 3150 Hz in laminated glass. An 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 resin layer containing a resin and a plasticizer. The interlayer film has a resonance frequency X of 550 Hz or more and 740 Hz or less, a loss factor Y in a secondary mode of 0.35 or more, and satisfies a formula: Y&#x3e;0.0008X&#x2212;0.142 in a measurement of resonance frequency in a secondary mode in a damping test for laminated glass according to a central exciting method of laminated glass, when the laminated glass is obtained by arranging the interlayer film between two glass plates of 25 mm wide, 300 mm long and 2 mm thick.

There is provided an interlayer film for laminated glass with which the transparency can be enhanced. The interlayer film for laminated glass according to the present invention is in a sea-island state having a sea-like dark part and a plurality of island-like bright parts to be identified when observed with a transmission electron microscope, a thermoplastic resin is contained in the dark part region and a thermoplastic resin is contained in the bright part region, and the arithmetic average value of major diameters of the bright parts is less than or equal to 400 nm or the median value of major diameters of the bright parts is less than or equal to 400 nm.

Provided is an interlayer film for laminated glass that can improve bending rigidity and sound insulating properties of laminated glass and can inhibit the occurrence and growth of foam in the laminated glass. An interlayer film for laminated glass according to the present invention has a single-layer structure or a two or more-layer structure and includes a first layer containing a polyvinyl acetal resin and a plasticizer, in which a glass transition temperature of the first layer is 10&#xb0; C. or lower, and an elastic modulus of the first layer at 30&#xb0; C. is 285,000 Pa or greater.

Provided is an interlayer film for laminated glass capable of effectively enhancing the sound insulating property of laminated glass having the interlayer film, in the interlayer film including a layer prepared with a thermoplastic component other than a polyvinyl acetal resin. An 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 thermoplastic elastomer layer containing a thermoplastic elastomer and a plasticizer, and the thermoplastic elastomer is an aliphatic polyolefin, the thermoplastic elastomer layer has a glass transition temperature in a temperature range of &#x2212;10&#xb0; C. to 10&#xb0; C., and a maximum value of tan &#x3b4; in a temperature range of &#x2212;10&#xb0; C. to 10&#xb0; C. of the thermoplastic elastomer layer is 1.5 or more.

An interlayer film for laminated glass includes a first layer containing a polyvinyl acetal resin and a plasticizer; and a second layer containing a polyvinyl acetal resin and a plasticizer, wherein the second layer is laminated on a first surface of the first layer, wherein a concentration of hydroxyl groups of the polyvinyl acetal resin in the first layer is different from a concentration of hydroxyl groups of the polyvinyl acetal resin in the second layer, and wherein at least one of the first layer, the second layer, or a portion of an interface between the first layer and the second layer contains a filler.

An interlayer film for laminated glass having a one-layer structure or a two or more-layer structure includes a first layer containing a polyvinyl acetal resin and a plasticizer, wherein the first layer further contains silica particles, and the ratio of a content of the silica particles in the first layer to a total content of the polyvinyl acetal resin and the plasticizer in the first layer is from 0.03 to 0.4.

Growing community of inventors

Kouka, Japan

Tatsuya Iwamoto