Title:
Intermediate film for laminated glass and laminated glass
Document Type and Number:
Japanese Patent JP6251777
Kind Code:
B2
Abstract:
The present invention provides an interlayer film for a laminated glass which can suppress bubble formation and bubble growth in the laminated glass. An interlayer film 1 for a laminated glass includes a first layer 2 and a second layer 3 laminated on one face 2a of the first layer 2. Each of the first layer 2 and the second layer 3 contains a polyvinyl acetal resin and a plasticizer. In the case of measuring viscoelasticity of a resin film (glass transition temperature: Tg(°C)) formed from the first layer 2 or a resin film (glass transition temperature: Tg(°C)) formed with 100 parts by weight of the polyvinyl acetal resin contained in the first layer 2 and 60 parts by weight of a plasticizer of triethylene glycol di-2-ethylhexanoate (3GO), the resin film has an elastic modulus of G'(Tg + 80) at (Tg + 80)°C and an elastic modulus of G' (Tg + 30) at (Tg + 30) °C, and provides a ratio (G' (Tg + 80)/G'(Tg + 30)) of 0.65 or higher.
Inventors:
Tatsuya Iwamoto
Kani Kohei
Kani Kohei
Application Number:
JP2016126234A
Publication Date:
December 20, 2017
Filing Date:
June 27, 2016
Export Citation:
Assignee:
Sekisui Chemical Co.,Ltd.
International Classes:
C03C27/12; B32B27/22; B32B27/30; B60J1/00; C08K5/103; C08L59/00
Domestic Patent References:
| JP2010150065A | ||||
| JP2008105942A | ||||
| JP2007331959A |
Attorney, Agent or Firm:
Patent business corporation Miya saki, table of contents patent office
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