Electronic Devices With Corrosion-Resistant Colored Metal Structures

    公开(公告)号:US20210400830A1

    公开(公告)日:2021-12-23

    申请号:US16904501

    申请日:2020-06-17

    Applicant: Apple Inc.

    Abstract: An electronic device may have a housing. The device may include metal structures such as a metal member forming a portion of the housing, a portion of a strap, or other portions of the device. A gold-containing coating such as a layer of elemental gold or a gold alloy may cover the metal member to provide the metal member with a gold appearance or other desired appearance. To protect the metal member and the gold-containing coating, the metal member and gold-containing coating may be covered with a protective coating layer such as an organic protective layer. The organic protective layer may have a fluoropolymer layer with thiol coupling groups to promote adhesion to the gold-containing layer or may contain a polymer layer with silane and thiol coupling groups that serves as an adhesion promotion layer for an overlapping fluoropolymer layer with silane coupling groups.

    COATINGS FOR ELECTRONIC DEVICES
    16.
    发明申请

    公开(公告)号:US20200095449A1

    公开(公告)日:2020-03-26

    申请号:US16362455

    申请日:2019-03-22

    Applicant: Apple Inc.

    Abstract: Patterned and plasma-treated coatings for surfaces of electronic devices are disclosed. The patterned and plasma-treated coatings may include a linear fluorinated oligomer or linear fluorinated polymer and may be transparent. Regions of a patterned coating may be micro-sized. The pattern defined by the coating may not be visually discernable, but may affect the frictional properties of the coating.

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