Title:
INTERLAYER FOR LAMINATED GLASS, AND LAMINATED GLASS
Document Type and Number:
WIPO Patent Application WO/2018/181758
Kind Code:
A1
Abstract:
Provided is an interlayer for laminated glass with which it is possible to improve the flexural rigidity of laminated glass over a wide range of temperatures, while improving the piercing resistance of laminated glass. This interlayer for laminated glass contains polyvinyl acetal resin and a second resin other than polyvinyl acetal resin, has a phase separation structure, and in an exponential curve fit which plots, as a log-log graph, the relation of complex viscosity at a frequency of 0.1-500 sec-1 at a temperature of 160°C with frequency as the x axis and complex viscosity as the y axis, the a in y=bxa falls within the range of -1 to -0.7 inclusive, the coefficient of determination R2 is 0.99 or higher, complex viscosity at a frequency of 100 sec-1 at a temperature of 160°C falls within the range of 900 Pa·s to 4500 Pa·s inclusive, and the glass transition temperature of components derived from the second resin is at least 30°C lower than the glass transition temperature of components derived from the polyvinyl acetal resin contained in the interlayer.
Inventors:
OOHIGASHI YUJI (JP)
SHINDO KAORU (JP)
SHINDO KAORU (JP)
Application Number:
PCT/JP2018/013339
Publication Date:
October 04, 2018
Filing Date:
March 29, 2018
Export Citation:
Assignee:
SEKISUI CHEMICAL CO LTD (JP)
International Classes:
C03C27/12; B32B17/10; B32B27/30; C08L29/14; C08L33/00
Domestic Patent References:
| WO2015046583A1 | 2015-04-02 | |||
| WO2016158696A1 | 2016-10-06 | |||
| WO2016039477A1 | 2016-03-17 |
Attorney, Agent or Firm:
MIYAZAKI & METSUGI (JP)
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