Title:
INTERMEDIATE FILM FOR GLASS LAMINATE AND GLASS LAMINATE
Document Type and Number:
Japanese Patent JP2016104694
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an intermediate film for glass laminate capable of providing a glass laminate capable of preventing generation of foam and growth of foam.SOLUTION: An intermediate film for glass laminate 1 has a first layer 2 and a second layer laminated on a single surface 2a of the first layer 2. The second layer 2 and 3 have each a polyvinyl acetal resin and a plasticizer. The content of a hydroxyl group of the polyvinyl acetal resin in the first layer 2 is lower than the content of the hydroxyl group of the polyvinyl acetal resin in the second layer 3. The difference between the content of the hydroxyl group of the polyvinyl acetal resin in the first layer 2 and the content of the hydroxyl group in the polyvinyl acetal resin in the second layer 3 is 9.2 mol% or less. The acetylation degree of the polyvinyl acetal resin in the first layer is 8 mol% or less when the difference of the contents is over 8.5 mol% and 9.2 mol% or less.SELECTED DRAWING: Figure 1
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Inventors:
IWAMOTO TATSUYA
KAJI KOHEI
KAJI KOHEI
Application Number:
JP2015251597A
Publication Date:
June 09, 2016
Filing Date:
December 24, 2015
Export Citation:
Assignee:
SEKISUI CHEMICAL CO LTD
International Classes:
C03C27/12; B32B17/10; B32B27/30
Domestic Patent References:
| JP2007331964A | 2007-12-27 | |||
| JP2007331959A | 2007-12-27 | |||
| JP2008532817A | 2008-08-21 | |||
| JP2001048600A | 2001-02-20 | |||
| JP2010037193A | 2010-02-18 |
Attorney, Agent or Firm:
Patent business corporation Miya saki, table of contents patent office
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