Title:
INTERMEDIATE FILM FOR LAMINATED GLASS, AND LAMINATED GLASS
Document Type and Number:
WIPO Patent Application WO/2018/181748
Kind Code:
A1
Abstract:
Provided is an intermediate film for laminated glass which is capable of enhancing the bending stiffness of laminated glass at 20°C, while being also capable of enhancing the sound insulation properties and penetration resistance of the laminated glass. An intermediate film for laminated glass according to the present invention contains a polyvinyl acetal resin, a second resin other than the polyvinyl acetal resin, and a plasticizer. This intermediate film for laminated glass is configured such that: the content of the plasticizer relative to 100 parts by weight of the polyvinyl acetal resin is 3 parts by weight or more but less than 20 parts by weight; this intermediate film has a phase separation structure; the second resin forms island portions in the phase separation structure; the average diameter of the island portions in the phase separation structure is from 10 nm to 1 μm (inclusive); and the glass transition temperature is within the range of from -40°C to 0°C (inclusive).
Inventors:
SHINDO KAORU (JP)
CHIBA YOUSUKE (JP)
CHIBA YOUSUKE (JP)
Application Number:
PCT/JP2018/013326
Publication Date:
October 04, 2018
Filing Date:
March 29, 2018
Export Citation:
Assignee:
SEKISUI CHEMICAL CO LTD (JP)
International Classes:
C03C27/12; B32B17/10; B32B27/30; C08L29/14; C08L101/00
Domestic Patent References:
| WO2016052670A1 | 2016-04-07 | |||
| WO2015046583A1 | 2015-04-02 | |||
| WO2015125932A1 | 2015-08-27 |
Attorney, Agent or Firm:
MIYAZAKI & METSUGI (JP)
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