INTERMEDIATE FILM FOR LAMINATED GLASS, AND LAMINATED GLASS

Title:

INTERMEDIATE FILM FOR LAMINATED GLASS, AND LAMINATED GLASS

Document Type and Number:

WIPO Patent Application WO/2011/078314

Kind Code:

A1

Abstract:

Disclosed is an intermediate film for laminated glass, which is capable of providing laminated glass that is capable of suppressing generation and growth of foam. Specifically disclosed is an intermediate film (1) for laminated glass, which comprises a first layer (2) and a second layer (3) that is arranged on one surface (2a) of the first layer (2). The first and second layers (2, 3) respectively contain a polyvinyl acetal resin and a plasticizer. The hydroxy group content in the polyvinyl acetal resin in the first layer (2) is lower than the hydroxy group content in the polyvinyl acetal resin in the second layer (3). The difference between the hydroxy group content in the polyvinyl acetal resin in the first layer (2) and the hydroxy group content in the polyvinyl acetal resin in the second layer (3) is 9.2% by mole or less. When the content difference is more than 8.5% by mole but 9.2% by mole or less, the degree of acetylation of the polyvinyl acetal resin in the first layer is 8% by mole or less.

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Inventors:

IWAMOTO TATSUYA (JP)
KANI KOHEI (JP)

Application Number:

PCT/JP2010/073302

Publication Date:

June 30, 2011

Filing Date:

December 24, 2010

Export Citation:

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Assignee:

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

International Classes:

C03C27/12; C08K5/103; C08L29/14

Foreign References:

JP2007331964A	2007-12-27
JP2001261383A	2001-09-26
JPH1025390A	1998-01-27
JPH07247139A	1995-09-26
JP2007070200A	2007-03-22

Other References: