INTERLAYER FILM FOR LAMINATED GLASS, AND LAMINATED GLASS

Title:

INTERLAYER FILM FOR LAMINATED GLASS, AND LAMINATED GLASS

Document Type and Number:

WIPO Patent Application WO/2020/004577

Kind Code:

A1

Abstract:

The present invention relates to an interlayer film for laminated glass, including an A layer, a C layer, and an A layer in this order, and including a B layer at any location between or on the outside of the layers, wherein the A layer contains a first thermoplastic resin, the resin material constituting the A layer has a peak at which tan δ is at maximum at -30°C to 10°C, tan δ being measured in accordance with JIS K 7244-10:2005 under conditions of a frequency of 1 Hz, the height of the peak of the resin material of at least one of the A layers is 1.5 or greater, the C layer has a thickness of 0.1 mm to 1.5 mm and comprises inorganic glass, or has a thickness of 0.25 mm to 2.5 mm and contains a third thermoplastic resin, the resin material constituting the C layer when the C layer contains a third thermoplastic resin has a tensile storage modulus at 0°C of 1.0 GPa or greater, the tensile storage modulus being measured in accordance with JIS K 7244-4:1999 under conditions of a frequency of 0.3 Hz, and the B layer contains a second thermoplastic resin and is constituted from a resin material different from the resin material constituting the A layers.

Inventors:

ARISHIMA HIROYUKI (JP)

Application Number:

PCT/JP2019/025680

Publication Date:

January 02, 2020

Filing Date:

June 27, 2019

Export Citation:

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Assignee:

KURARAY CO (JP)

International Classes:

C03C27/12; B32B17/10; B32B27/00; B32B27/08; B32B27/22; B32B27/30; B60J1/00

Domestic Patent References:

WO2016076339A1	2016-05-19
WO2017199983A1	2017-11-23
WO2005018969A1	2005-03-03
WO2013031884A1	2013-03-07
WO2003033583A1	2003-04-24

Foreign References:

US20180082669A1	2018-03-22
JP2016108229A	2016-06-20
JP2007091491A	2007-04-12
EP1235683A1	2002-09-04

Other References: