Title:
LAMINATED GLASS INTERLAYER FILM AND LAMINATED GLASS
Document Type and Number:
WIPO Patent Application WO/2021/200961
Kind Code:
A1
Abstract:
Provided is a laminated glass interlayer film capable of enhancing sound insulating properties of laminated glass. A laminated glass interlayer film according to the present invention, which is a laminated glass interlayer film having a structure of two or more layers, comprises at least one layer that has one end and the other end on the opposite side of the one end, wherein the thickness of the other end is larger than the thickness of the one end, and the glass transition temperature is less than 15 °C. When the thickness of the interlayer film is set as X μm, and the total thickness of layers having a glass transition temperature of less than 15 °C is set as Y μm, a region where a value of Y/X is 0.12 or more is provided, and the average thickness of a surface layer in a region from a position of 100 mm to a position of 400 mm from the one end to the other end is less than 300 μm.
Inventors:
NISHINO HIROMITSU (JP)
KIDO KOJI (JP)
KIDO KOJI (JP)
Application Number:
PCT/JP2021/013565
Publication Date:
October 07, 2021
Filing Date:
March 30, 2021
Export Citation:
Assignee:
SEKISUI CHEMICAL CO LTD (JP)
International Classes:
C03C27/12; B60J1/00; B60J1/02; B60K35/00
Domestic Patent References:
| WO2020004577A1 | 2020-01-02 | |||
| WO2017022686A1 | 2017-02-09 |
Foreign References:
| JP2011088785A | 2011-05-06 | |||
| JP2007223883A | 2007-09-06 | |||
| JPH07306152A | 1995-11-21 |
Attorney, Agent or Firm:
MIYAZAKI & METSUGI (JP)
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