Title:
LAMINATED GLASS
Document Type and Number:
WIPO Patent Application WO/2017/204121
Kind Code:
A1
Abstract:
Provided is a laminated glass which has a high sound insulation performance and excellent foaming resistance of an interlayer, in particular, excellent foaming resistance of an interlayer in the periphery thereof. The laminated glass includes a pair of glass sheets which face each other, and the interlayer which: is sandwiched between the pair of glass sheets; has skin layers with a glass transition point of 15°C or higher and core layers with a glass transition point of less than 15°C that are alternately laminated, each layer containing a polyvinyl acetal resin and a plasticizer; has three or more layers of the core layer; and contains the plasticizer in an amount of 0.3 mg/mm2 or more per unit area of the principal surface of the interlayer measured in a region from 5 mm to 6 mm inward from an edge of the interlayer.
Inventors:
NAKAMUA ATSUSHI (JP)
Application Number:
PCT/JP2017/018901
Publication Date:
November 30, 2017
Filing Date:
May 19, 2017
Export Citation:
Assignee:
ASAHI GLASS CO LTD (JP)
International Classes:
C03C27/12; B32B17/10; B60J1/00
Domestic Patent References:
| WO2013031884A1 | 2013-03-07 | |||
| WO2016052672A1 | 2016-04-07 | |||
| WO2012050078A1 | 2012-04-19 |
Foreign References:
| JPS6237148A | 1987-02-18 | |||
| JPH05104687A | 1993-04-27 | |||
| JPS5850993B2 | 1983-11-14 |
Other References:
See also references of EP 3466898A4
Attorney, Agent or Firm:
SAKURA PATENT OFFICE, P.C. (JP)
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