Title:
合わせガラス
Document Type and Number:
Japanese Patent JP6874764
Kind Code:
B2
Abstract:
There is provided laminated glass provided with a high sound insulating property, and excellent in foaming resistance of an intermediate film, particularly foaming resistance of an intermediate film in a peripheral edge portion. Laminated glass includes: a pair of glass plates facing each other; and an intermediate film sandwiched between the pair of glass plates, in which skin layers each having a glass transition point of 15°C or higher and core layers each having a glass transition point of lower than 15°C, which each contain a polyvinyl acetal resin and a plasticizer, are alternately laminated, three or more core layers are included, and a plasticizer amount per unit area of a principal surface of the intermediate film which is measured in a region from 5 mm to 6 mm inside from an end portion of the intermediate film is 0.3 mg/mm 2 or more.
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Inventors:
Atsushi Nakamura
Application Number:
JP2018519254A
Publication Date:
May 19, 2021
Filing Date:
May 19, 2017
Export Citation:
Assignee:
AGC Inc.
International Classes:
C03C27/12; B32B17/10; B60J1/00
Domestic Patent References:
| JP6237148A |
Foreign References:
| WO2013031884A1 | ||||
| WO2016052672A1 | ||||
| WO2012050078A1 | ||||
| US20150125656 |
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Tadahiko Ito