Interlayer film for laminated glass, and laminated glass
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United States of America Patent
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Nov 12, 2019
Grant Date -
Jun 8, 2017
app pub date -
Sep 30, 2015
filing date -
Sep 30, 2014
priority date (Note) -
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Abstract
The present invention aims to provide an interlayer film for a laminated glass capable of exhibiting high deaeration properties even in a nip roll method and hardly forming air bubbles to enable the production of a highly visible laminated glass, and a laminated glass including the interlayer film for a laminated glass. The present invention relates to an interlayer film for a laminated glass, having a large number of recesses and a large number of projections on at least one surface, the recesses each having a groove shape with a continuous bottom and being regularly adjacent to each other in parallel with one another, the recesses each having a groove shape with a continuous bottom having a ratio (R/Sm×100) of a radius of rotation R of the bottom to an interval Sm between the recesses of 15% or higher.
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