COMPOSITE SHEET FOR FORMING PROTECTIVE FILM
    2.
    发明申请
    COMPOSITE SHEET FOR FORMING PROTECTIVE FILM 审中-公开
    形成保护膜的复合片

    公开(公告)号:US20160046840A1

    公开(公告)日:2016-02-18

    申请号:US14778802

    申请日:2014-03-26

    Abstract: A protective film-forming composite sheet 10 comprises a pressure sensitive adhesive sheet 16 in which a pressure sensitive adhesive layer 12 is provided on a base material 11, a protective film-forming film 13, and a release film 14. When α (mN/25 mm) represents the maximum peel force between the protective film-forming film 13 and the release film 14; β (mN/25 mm) represents the minimum peel force between the pressure sensitive adhesive sheet 16 and the protective film-forming film 13; and γ (mN/25 mm) represents the maximum peel force between the pressure sensitive adhesive sheet 16 and the protective film-forming film 13, the following relationships (1) to (3) hold for α, β, and γ; β≧70  (1) α/β≦0.50  (2) γ≦2000  (3).

    Abstract translation: 保护膜形成复合片10包括在基材11上形成有压敏粘合剂层12的压敏粘合片16,保护膜形成膜13和剥离膜14.当α(mN / 25mm)表示保护膜形成膜13和剥离膜14之间的最大剥离力; &bgr (mN / 25mm)表示压敏粘合片16和保护膜形成膜13之间的最小剥离力; γ(mN / 25mm)表示压敏粘合片16与保护膜形成膜13之间的最大剥离力,关于(1)〜(3),α,&bgr,γ的关系成立。 &bgr;≥70(1)α/&bgr;≦̸ 0.50(2)γ≦̸ 2000(3)。

    PEEL-OFF DETECTION LABEL
    3.
    发明申请

    公开(公告)号:US20210269678A1

    公开(公告)日:2021-09-02

    申请号:US17258618

    申请日:2019-07-10

    Abstract: The invention relates to a peel detection label that is a laminate including a support, a pattern layer formed in a part of the surface of the support, and a pressure-sensitive adhesive laminate having at least a low modulus layer (X), a high modulus layer (Y) and a pressure-sensitive adhesive layer (Z) in that order, in which the low modulus layer (X) has a surface in contact with the support and the pattern layer and a surface in contact with the high modulus layer (Y), and satisfies the following requirement (1):
    Requirement (1): when the pressure-sensitive adhesive layer (Z) of the peel detection label is attached to an adherend and then the peel detection label is peeled off from the adherend, the maximum vertical tensile stress applied to an element of the low modulus layer (X) that is located closest to the support is 0.19 MPa or more when analyzed by a finite element method using Abaqus.

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