INTERMEDIATE FILM FOR LAMINATED GLASS, METHOD FOR PRODUCING INTERMEDIATE FILM FOR LAMINATED GLASS, AND LAMINATED GLASS

Title:

INTERMEDIATE FILM FOR LAMINATED GLASS, METHOD FOR PRODUCING INTERMEDIATE FILM FOR LAMINATED GLASS, AND LAMINATED GLASS

Document Type and Number:

WIPO Patent Application WO/2017/022686

Kind Code:

A1

Abstract:

The purpose of the present invention is to provide: an intermediate film for laminated glass, which enables the achievement of laminated glass suppressed in generation of an optical strain; a method for producing this intermediate film for laminated glass; and laminated glass obtained using this intermediate film for laminated glass. The present invention is an intermediate film for laminated glass, which has a number of recesses and projections in at least one surface and is produced by an extrusion lip embossing method utilizing a melt fracture, and which is formed of a laminate wherein two or more resin layers are laminated. With respect to the surface having a number of recesses and projections, the maximum height Ry (μm) and the mean spacing Sm (μm) of the recesses and projections as determined in accordance with JIS B 0601 (1994) satisfy the following formula (1). (Ry × Sm)/2 ≤ 3,500 (1)

Inventors:

KAWATE HIROSHI (JP)
KIDO KOJI (JP)
YOSHIDA SHOUGO (JP)
MORI MICHIKO (JP)

Application Number:

PCT/JP2016/072397

Publication Date:

February 09, 2017

Filing Date:

July 29, 2016

Export Citation:

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Assignee:

SEKISUI CHEMICAL CO LTD (JP)

International Classes:

C03C27/12; B29C48/08; B29C48/21; B29C48/92; B32B17/10; B60J1/00; B29L9/00

Domestic Patent References:

WO2014021459A1

2014-02-06

Foreign References:

JP2000203901A	2000-07-25
JP2003528749A	2003-09-30
JPH06210729A	1994-08-02
JP2003048762A	2003-02-21
JP2014501641A	2014-01-23
JP2015059052A	2015-03-30

Other References: