Sekisui Chemical Co., Ltd.

Sekisuichemicalco.,ltd.

Hiroshi Kawate

Koji Kido

Michiko Mori

Kazuhiko Nakayama

Shougo Yoshida

Etsurou Hirota

The present invention aims to provide an interlayer film for a laminated glass which has a multilayer structure including two or more resin layers laminated together and can prevent optical distortion even at high temperatures, a laminated glass including the interlayer film for a laminated glass, and a method of producing the interlayer film for a laminated glass. The present invention relates to an interlayer film for a laminated glass, the interlayer film including: two or more resin layers laminated together, one resin layer having a surface with a ratio (Rz/Sm) of a ten-point average roughness Rz (&#x3bc;m) to an average interval Sm (&#x3bc;m) of projections and recesses of 0.0018 or less as measured in conformity with JIS B-0601(1994) in the following manner: a laminated glass is produced using two clear glass sheets conforming to JIS R3202(1996) and the interlayer film; the interlayer film is peeled away from the clear glass sheets after the laminated glass is cooled with liquid nitrogen; the one resin layer is peeled away from another resin layer that is in direct contact with the one resin layer; and the Rz and Sm of the surface of the one resin layer on the side having been in contact with the other resin layer are measured.

Laminated glass intermediate film, laminated glass and laminated glass intermediate film production method

The present invention provides an interlayer film for a laminated glass which is easily peelable without autohesion even after storage in a stacked state, a laminated glass prepared using the interlayer film for a laminated glass, and a method for producing the interlayer film for a laminated glass. The present invention provides an interlayer film for a laminated glass, having a large number of recesses on at least one surface, the at least one surface having the recesses having an arithmetical mean height Sa of 200 nm or more as measured in conformity with ISO 25178.

Interlayer for laminated glass, laminated glass, and production method for interlayer for laminated glass

The present invention aims to provide an interlayer film for a laminated glass, which includes two or more stacked resin layers including a colored layer, exhibits excellent deaeration properties in a production process of a laminated glass, and is capable of preventing poor appearance of a colored portion, and a laminated glass including the interlayer film for a laminated glass. The present invention relates to an interlayer film for a laminated glass, having a laminated structure including two or more layers, at least including: an outer layer disposed on the outermost surface of the interlayer film for a laminated glass and having a large number of recesses on one surface; and a colored layer containing a colorant, a minimum distance between an outer layer side surface of the colored layer and the surface having a large number of recesses of the outer layer being 150 &#x3bc;m or longer.

Interlayer for laminated glass and laminated glass

The present invention aims to provide an interlayer film for a laminated glass which enables production of a laminated glass with suppressed occurrence of optical distortion, a method for producing the interlayer film for a laminated glass, and a laminated glass produced using the interlayer film for a laminated glass. The present invention relates to an interlayer film for a laminated glass produced by an extrusion lip embossing method utilizing melt fracture, the interlayer film for a laminated glass including a laminate that includes two or more resin layers in a stack and having a large number of protrusions and recesses on at least one surface, a maximum height Ry (&#x3bc;m) and an average interval Sm (&#x3bc;m) of the protrusions and recesses measured in conformity with JIS B 0601 (1994) on the surface with protrusions and recesses satisfying a formula (1):()/2&#x2264;3,500&#x2003;&#x2003;(1).

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Shiga, Japan

Hiroshi Kawate