INTERLAYER FOR LAMINATED GLASS, AND LAMINATED GLASS

Title:

INTERLAYER FOR LAMINATED GLASS, AND LAMINATED GLASS

Document Type and Number:

WIPO Patent Application WO/2011/081191

Kind Code:

A1

Abstract:

Disclosed is an interlayer for laminated glass. Said interlayer can inhibit bubble formation and bubble growth in laminated glass. The disclosed interlayer (1) is provided with a first layer (2) and a second layer (3) which is laminated onto one surface (2a) of the first layer (2). The first and second layers (2, 3) contain a polyvinyl acetal resin and a plasticizer, respectively. Measuring the viscoelasticity of a resin film (with a glass transition temperature Tg (°C)) which either is the aforementioned first layer (2) or contains 100 parts by weight of the polyvinyl acetal resin from the first layer (2) and 60 parts by weight of a triethylene glycol di-2-ethylhexanoate (3GO) plasticizer, the elastic modulus G'(Tg+80) at a temperature of (Tg+80)°C is at least 65% of the elastic modulus G'(Tg+30) at a temperature of (Tg+30)°C.

Inventors:

IWAMOTO TATSUYA (JP)
KANI KOHEI (JP)

Application Number:

PCT/JP2010/073742

Publication Date:

July 07, 2011

Filing Date:

December 28, 2010

Export Citation:

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Assignee:

SEKISUI CHEMICAL CO LTD (JP)
IWAMOTO TATSUYA (JP)
KANI KOHEI (JP)

International Classes:

C03C27/12; B60J1/00; C08K5/103; C08L29/14

Foreign References:

JPH0940444A	1997-02-10
JPH1036146A	1998-02-10
JPH10316454A	1998-12-02
JPH03124441A	1991-05-28
JPH11255827A	1999-09-21
JPH01252556A	1989-10-09
JP2003252655A	2003-09-10
JP2001316140A	2001-11-13
JP2007070200A	2007-03-22

Other References: