Title:
INTERLAYER FILM FOR LAMINATED GLASS, AND LAMINATED GLASS
Document Type and Number:
WIPO Patent Application WO/2021/002032
Kind Code:
A1
Abstract:
Provided is an interlayer film for laminated glass, the interlayer film being able to suppress separation between layers of the interlayer film, despite the layers which contain mutually different resins being stacked, and also being able to increase the transparency of the laminated glass. The interlayer film for laminated glass according to the present invention is for laminated glass having a structure composed of at least two layers. The interlayer film comprises: a first layer including a resin; and a second layer disposed on a first surface of the first layer and including a resin. The first layer and the second layer contain different resins. The glass transition temperature of the fist layer is lower than the glass transition temperature of the second layer. The acid value of the first layer is 3 to 500 mg KOH/g. The haze of laminated glass X obtained by sandwiching the interlayer film between two sheets of clear glass is 0.5% or less.
Inventors:
ISHIKAWA YUKI (JP)
KAWADA SHINJI (JP)
IWAMOTO TATSUYA (JP)
KAWADA SHINJI (JP)
IWAMOTO TATSUYA (JP)
Application Number:
PCT/JP2019/045500
Publication Date:
January 07, 2021
Filing Date:
November 20, 2019
Export Citation:
Assignee:
SEKISUI CHEMICAL CO LTD (JP)
International Classes:
B32B7/023; C03C27/12; B32B17/10; B32B27/08; B32B27/22; B32B27/30
Domestic Patent References:
| WO2017171043A1 | 2017-10-05 | |||
| WO2016158694A1 | 2016-10-06 | |||
| WO2018212332A1 | 2018-11-22 |
Foreign References:
| JP2016069279A | 2016-05-09 | |||
| JP2010111563A | 2010-05-20 |
Attorney, Agent or Firm:
MIYAZAKI & METSUGI (JP)
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