Title:
LAMINATED GLASS INTERMEDIATE FILM AND LAMINATED GLASS
Document Type and Number:
WIPO Patent Application WO/2018/143442
Kind Code:
A1
Abstract:
Provided is a laminated glass intermediate film that can improve the sound-insulating properties of laminated glass. This laminated glass intermediate film has a one-layer structure or a two- or more layer structure and comprises a first layer that has a glass transition temperature, as measured by dynamic viscoelasticity measurement, of -30℃–10℃. When the glass transition temperature of the first layer in units of ℃ as measured by dynamic viscoelasticity measurement is Tg, the loss tangent tanδ of the first layer at Tg satisfies formula (1) and formula (2). (1) (the loss tangent tanδ of the first layer at Tg)≥1.55. (2) (the loss tangent tanδ of the first layer at Tg)=A×(Tg-a first storage modulus G' for the first layer at 10℃/Tg+a second storage modulus G' for the first layer at 10℃)+B. In formula (2), A is 0.003–0.04, and B is 0.7–1.4.
Inventors:
IWAMOTO TATSUYA (JP)
SAKAMOTO YUU (JP)
ISHIKAWA YUKI (JP)
KAWADA SHINJI (JP)
SAKAMOTO YUU (JP)
ISHIKAWA YUKI (JP)
KAWADA SHINJI (JP)
Application Number:
PCT/JP2018/003706
Publication Date:
August 09, 2018
Filing Date:
February 02, 2018
Export Citation:
Assignee:
SEKISUI CHEMICAL CO LTD (JP)
International Classes:
C03C27/12; B32B17/10; B32B27/00; B32B27/30
Domestic Patent References:
| WO2013004271A1 | 2013-01-10 | |||
| WO2016158696A1 | 2016-10-06 | |||
| WO2016158882A1 | 2016-10-06 | |||
| WO2016094230A1 | 2016-06-16 |
Foreign References:
| JP2007070200A | 2007-03-22 | |||
| US20130236711A1 | 2013-09-12 |
Other References:
See also references of EP 3578530A4
Attorney, Agent or Firm:
MIYAZAKI & METSUGI (JP)
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