Intermediate film for laminated glasses, and laminated glass
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United States of America Patent
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Feb 7, 2017
Grant Date -
Aug 29, 2013
app pub date -
Nov 9, 2011
filing date -
Nov 9, 2010
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Abstract
The present invention provides an intermediate film for laminated glass that can increase the heat-insulating properties of laminated glass. The intermediate film for laminated glass according to the present invention is an intermediate film for laminated glass having a one-layer structure or a laminated structure of two or more layers, an intermediate film 1 for laminated glass has a first layer 2 containing silicon dioxide particles 51 having hollow parts and shell parts and having a porosity of 40% or more and 80% or less, when the intermediate film 1 for laminated glass has a one-layer structure, the first layer further contains a thermoplastic resin, and when the intermediate film 1 for laminated glass has a laminated structure of two or more layers, the intermediate film 1 for laminated glass further has a second layer 3 which is arranged on a first surface 2a side of the first layer 2 and which contains a thermoplastic resin.
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