LAMINATED GLASS INTERLAYER FILM AND LAMINATED GLASS

Title:

LAMINATED GLASS INTERLAYER FILM AND LAMINATED GLASS

Document Type and Number:

WIPO Patent Application WO/2021/145328

Kind Code:

A1

Abstract:

Provided is a laminated glass interlayer film in which a deep color part having uniform parallel light transmittance exists in a shade area and which can thus suppress irregular color in the shade area.　A laminated glass interlayer film according to the present invention has one end and the other end opposite to the one end. The thickness of the other end is larger than the thickness of the one end. The interlayer film is disposed between two sheets of clear glass conforming to JIS R3202: 1996 to obtain a laminated glass X. When a specific parallel light transmittance for the obtained laminated glass X is measured, the interlayer film includes: a gradation part in which the parallel light transmittance is continuously reduced from one end side to the other end side and an absolute value of a change rate of the parallel light transmittance exceeds 0.3%/mm; a transparent part that is located on one end side from the gradation part and has a parallel light transmittance of 60% or more; and a deep color part that is located on the other end side from the gradation part and includes one or more points A where the absolute value of the change rate of the parallel light transmittance is 0.3%/mm or less.

Inventors:

ISHIDA JUN (JP)
INUI HIROAKI (JP)

Application Number:

PCT/JP2021/000767

Publication Date:

July 22, 2021

Filing Date:

January 13, 2021

Export Citation:

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Assignee:

SEKISUI CHEMICAL CO LTD (JP)

International Classes:

C03C27/12; B32B17/10; B32B27/20; B60J1/00; G02B27/01

Domestic Patent References:

WO2014077328A1	2014-05-22
WO2009001856A1	2008-12-31

Foreign References:

JP2009035444A	2009-02-19
JP2016084439A	2016-05-19
JP2012206877A	2012-10-25
JP2010180068A	2010-08-19
JP2006231521A	2006-09-07
JPH11130481A	1999-05-18

Other References: