Title:
合わせガラス用中間膜及び合わせガラス
Document Type and Number:
Japanese Patent JP6649879
Kind Code:
B2
Abstract:
There is provided an interlayer film for laminated glass with which protrusion of an interlayer film portion in the TD direction can be suppressed at the time of producing laminated glass. In the interlayer film for laminated glass according to the present invention, when, in the MD direction of the interlayer film, a birefringence index of the first surface part, a birefringence index of the second surface part, and a birefringence index of the center part are defined as nMDA, nMDB, and nMDC, respectively, nMDA, nMDB, and nMDC each are 0.25 × 10 -3 or less.
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Inventors:
Kohei Yamaguchi
Yasuyuki Izu
Isao Higuchi
Yasuyuki Izu
Isao Higuchi
Application Number:
JP2016522066A
Publication Date:
February 19, 2020
Filing Date:
March 31, 2016
Export Citation:
Assignee:
Sekisui Chemical Co.,Ltd.
International Classes:
C03C27/12; B32B7/023; B32B17/10; B32B27/22; C08J5/12
Domestic Patent References:
| JP2005324355A |
Foreign References:
| WO2013051454A1 | ||||
| WO2013051455A1 |
Attorney, Agent or Firm:
Patent business corporation Miya saki, table of contents patent office