INTERMEDIATE FILM FOR LAMINATED GLASS, AND LAMINATED GLASS

Title:

INTERMEDIATE FILM FOR LAMINATED GLASS, AND LAMINATED GLASS

Document Type and Number:

WIPO Patent Application WO/2018/212332

Kind Code:

A1

Abstract:

Provided is an intermediate film for laminated glass capable of effectively enhancing the sound-insulating property at 6300 Hz while effectively suppressing a decline in the sound-insulating property at 3150 Hz in laminated glass. The intermediate film for laminated glass according to the present invention has a single-layered structure or a structure of two or more layers, is equipped with a resin layer that includes a resin and a plasticizer, and the resonance frequency X is 550-740 Hz, the loss factor Y in secondary mode is 0.35 or greater, and the expression Y > 0.0008 X – 0.142 is satisfied in measurement of the resonance frequency in secondary mode by damping test of the laminated glass using the center vibration method of the laminated glass when the intermediate film is placed between two glass plates having a width of 25 mm, a length of 300 mm, and a thickness of 2 mm to obtain a laminated glass.

Inventors:

IWAMOTO TATSUYA (JP)
ISHIKAWA YUKI (JP)
KAWADA SHINJI (JP)
SAKAMOTO YUU (JP)

Application Number:

PCT/JP2018/019314

Publication Date:

November 22, 2018

Filing Date:

May 18, 2018

Export Citation:

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Assignee:

SEKISUI CHEMICAL CO LTD (JP)

International Classes:

C03C27/12; B32B17/06; B32B25/00; C08L23/00; C08L91/00

Domestic Patent References:

WO2016158695A1	2016-10-06
WO2013105657A1	2013-07-18
WO2014069593A1	2014-05-08
WO2016076340A1	2016-05-19
WO2016158882A1	2016-10-06
WO2011016494A1	2011-02-10

Foreign References:

JP2016108225A	2016-06-20
JP2015525185A	2015-09-03

Other References: