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US 2026/0233494 A1Published application
Interlayer film, laminate, and method for producing interlayer film
AssigneeSekisui Chemical Co., Ltd.
InventorsAtsushi Nohara, Yuuma Takahashi, Koshi Yamazaki, Yuuki Yamamoto, Ryouta Saitou
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Abstract
An interlayer film containing an ionomer resin and an ultraviolet absorber is provided. The ultraviolet absorber is at least one compound selected from the group consisting of a compound having a benzotriazole structure and a compound having a triazine structure. The interlayer film containing the ionomer resin and the ultraviolet absorber exhibits little coloration while suppressing ultraviolet transmittance.
Claims17
An interlayer film comprising an ionomer resin and an ultraviolet absorber, wherein:
- the ultraviolet absorber is at least one selected from the group consisting of a compound having a benzotriazole structure and a compound having a triazine structure, wherein:
- the compound having the benzotriazole structure is selected from the group consisting of the compound represented by formula (2), the compound represented by formula (3), and the compound represented by formula (4),
- the ionomer resin comprises structural units derived from an unsaturated carboxylic acid,
- structural units derived from a neutralized unsaturated carboxylic acid, and structural units derived from ethylene, and
- a content of the structural units derived from the neutralized unsaturated carboxylic acid is 10 to 18% by mass based on a total amount of structural units in the ionomer resin.
2 more elements
Dependencies are inferred from the claim text.