LAMINATED GLASS INTERMEDIATE FILM AND LAMINATED GLASS

Title:

LAMINATED GLASS INTERMEDIATE FILM AND LAMINATED GLASS

Document Type and Number:

WIPO Patent Application WO/2012/108536

Kind Code:

A1

Abstract:

Provided is a laminated glass intermediate film that increases the sound insulation of laminated glass. The laminated glass intermediate film (1) is provided with a second layer (3) and a first layer (2) containing a plasticizer and a polyvinyl acetal resin. In a phase diagram of the three values that are the degree of acetalization (X), the degree of acetylation (Y), and the percentage hydroxide group content (Z) in the polyvinyl acetal resin in the first layer (2), the degree of acetalization (X), the degree of acetylation (Y), and the percentage hydroxide group content (Z) are each values in a region (R1) enclosed by the line (L1) wherein, in the given order, four line segments link a first coordinate (A) ((X) : (Y) : (Z) = 70 mol% : 30 mol% : 0 mol%), a second coordinate (B) ((X) : (Y) : (Z) = 34 mol% : 30 mol% : 36 mol%), a third coordinate (C) ((X) : (Y) : (Z) = 94 mol% : 0 mol% : 6 mol%), and a fourth coordinate (D) ((X) : (Y) : (Z) = 100 mol% : 0 mol% : 0 mol %).

Inventors:

SHIMAMOTO MICHIO (JP)
MATSUDA SHOTA (JP)
YANG SINYUL (JP)
KANI KOHEI (JP)
IWAMOTO TATSUYA (JP)

Application Number:

PCT/JP2012/053172

Publication Date:

August 16, 2012

Filing Date:

February 10, 2012

Export Citation:

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Assignee:

SEKISUI CHEMICAL CO LTD (JP)
SHIMAMOTO MICHIO (JP)
MATSUDA SHOTA (JP)
YANG SINYUL (JP)
KANI KOHEI (JP)
IWAMOTO TATSUYA (JP)

International Classes:

C03C27/12; B32B17/10; B32B27/30; B60J1/02; C08F16/38

Domestic Patent References:

WO2010008053A1	2010-01-21
WO2010095749A1	2010-08-26

Foreign References:

JP2007070200A

2007-03-22

Other References: