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US 12,624,258 B2Granted
Adhesive film and method for producing adhesive film
AssigneeMitsubishi Gas Chemical Company, Inc.
InventorsFumiaki Kakeya, Masahide Takeda, Keisuke Tomita
Life of this patent
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Abstract
An adhesive film or the like which is a laminate containing a substrate film containing a polycarbonate, a primer layer laminated on the surface of the substrate film, and an adhesive layer laminated on the surface of the primer layer opposite the substrate film.
Claims15
An adhesive film which is a laminate comprising:
- a substrate film containing a polycarbonate;
- a primer layer laminated at least on a surface of one side of the substrate film;
- and
- an adhesive layer laminated on a surface of the primer layer on the other side from the substrate film,
- wherein
- the primer layer comprises a UV curable urethane acrylate resin,
- the substrate film and the primer layer are in direct contact;
- and
- the urethane acrylate resin contains at least a mixture of a hexafunctional urethane acrylate and a bifunctional acrylate, wherein the bifunctional acrylate is represented by the following structure:
- wherein R is hydrogen or a methyl group, or
- the urethane acrylate resin has an isocyanate-derived structural unit and a structural unit derived from a compound having a (meth) acryloyloxy group and a hydroxy group.
8 more elements
Dependencies are inferred from the claim text.