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US 2014/0227536 A1Published application
Interlayer for laminated glass, and laminated glass
AssigneeSekisui Chemical Co., Ltd.
InventorsTatsuya Iwamoto, Kohei Kani
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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. The polyvinyl acetal resin in the first layer 2 is obtained by acetalizing a polyvinyl alcohol resin that has a degree of polymerization exceeding 3000.
Claims20
An interlayer film for a laminated glass, comprising
- a first layer that contains a polyvinyl acetal resin and a plasticizer, and
- a second layer that contains a polyvinyl acetal resin and a plasticizer and is laminated on one face of the first layer,
- wherein the polyvinyl acetal resin in the first layer is obtained by acetalizing a polyvinyl alcohol resin that has a degree of polymerization exceeding 3000, and
- the plasticizer is an organic ester plasticizer.
1 more element
Dependencies are inferred from the claim text.