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AssigneeHuawei Technologies Co., Ltd.
InventorsFuguo XU, Weilin LI, Jie WANG, Min LI
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This application provides an adhesive film and a preparation method thereof, a composite assembly, and an electronic device. The adhesive film is prepared through a cross-linking reaction of a prepolymer. The prepolymer includes an alkyl acrylate soft monomer and an acrylate polar monomer. A mass fraction of the alkyl acrylate soft monomer in the prepolymer is greater than or equal to 60 wt %. A mass fraction of the acrylate polar monomer in the prepolymer is less than 30 wt %. The adhesive film provided in this application has an excellent low modulus at a low temperature and a high creep recovery rate, and can be used to improve a service life of a foldable electronic device in repeated folding processes.
An adhesive film, wherein the adhesive film is prepared through a cross-linking reaction of a prepolymer, the prepolymer comprises an alkyl acrylate soft monomer and an acrylate polar monomer, a mass fraction of the alkyl acrylate soft monomer in the prepolymer is greater than or equal to 60 wt %, and a mass fraction of the acrylate polar monomer in the prepolymer is less than 30 wt %, and wherein the mass fraction of the alkyl acrylate soft monomer in the prepolymer ranges from 60 wt % to 85 wt %, and the mass fraction of the acrylate polar monomer in the prepolymer ranges from 10 wt % to 25 wt %.
(canceled)
A preparation method of an adhesive film, wherein the method comprises:
(canceled)
A composite assembly comprising a first assembly, a second assembly, and an adhesive film located between the first assembly and the second assembly, wherein the adhesive film is prepared through a cross-linking reaction of a prepolymer, the prepolymer comprises an alkyl acrylate soft monomer and an acrylate polar monomer, a mass fraction of the alkyl acrylate soft monomer in the prepolymer is greater than or equal to 60 wt %, and a mass fraction of the acrylate polar monomer in the prepolymer is less than 30 wt %, and wherein the mass fraction of the alkyl acrylate soft monomer in the prepolymer ranges from 60 wt % to 85 wt %, and the mass fraction of the acrylate polar monomer in the prepolymer ranges from 10 wt % to 25 wt %.
An electronic device, wherein the electronic device comprises composite assembly, wherein the composite assembly comprises a first assembly, a second assembly, and an adhesive film located between the first assembly and the second assembly, wherein the adhesive film is prepared through a cross-linking reaction of a prepolymer, the prepolymer comprises an alkyl acrylate soft monomer and an acrylate polar monomer, a mass fraction of the alkyl acrylate soft monomer in the prepolymer is greater than or equal to 60 wt %, and a mass fraction of the acrylate polar monomer in the prepolymer is less than 30 wt %, and wherein the mass fraction of the alkyl acrylate soft monomer in the prepolymer ranges from 60 wt % to 85 wt %, and the mass fraction of the acrylate polar monomer in the prepolymer ranges from 10 wt % to 25 wt %.
(canceled)
A composite assembly, wherein the composite assembly comprises a first assembly, a second assembly, and an adhesive film located between the first assembly and the second assembly, and the adhesive film comprises the adhesive film, wherein the adhesive film is prepared by performing operations comprising:
Dependencies are inferred from the claim text.