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    • 6. 发明授权
    • Sheet for protecting paint films of automobiles
    • 用于保护汽车漆膜的片材
    • US6030702A
    • 2000-02-29
    • US728900
    • 1996-10-10
    • Komaharu MatsuiTakeshi EdaHiroshi UedaMitsuyoshi ShiraiKenji SanoMitsuru HoradaNaoyuki Nishiyama
    • Komaharu MatsuiTakeshi EdaHiroshi UedaMitsuyoshi ShiraiKenji SanoMitsuru HoradaNaoyuki Nishiyama
    • C08L23/20C09J7/02C09J123/20
    • C09J7/0246C08L23/20C09J2203/306Y10T428/28Y10T428/2883
    • A sheet for protecting paint films of automobiles for adhering to the incompletely cured paint films of automobiles comprising two pack urethane paint, the sheet comprising a support and a pressure-sensitive adhesive layer formed thereon, wherein the sheet has a Young's modulus E of at least 75 N/mm.sup.2 and a coefficient of flexural stress k represented by the formula k=Eh.sup.3 wherein h is a thickness of the support, of 0.035 or less. The protective sheet can uniformly protect the paint films and easily be peeled and removed therefrom without causing environmental problems and adhesive remaining of the pressure-sensitive adhesive layer. Even when the sheet is adhered to incompletely cured paint films of automobiles and they are allowed to stand for a long period of time under an outside high temperature in summer, the sheet does not cause the deformation of the paint film and the microdeformations by the deformation of the paint film at the edge portion of the pressure-sensitive adhesive layer. The protective sheet can be reserved in a roll state without causing the change of form by, for example, a telescope phenomenon.
    • 一种用于保护汽车漆膜以粘附到不完全固化的汽车漆膜的片材,其包括两个包装氨基甲酸酯涂料,该片材包含支撑体和形成在其上的压敏粘合剂层,其中该片材的杨氏模量E至少为 75N / mm 2,并且由公式k = Eh3表示的弯曲应力k,其中h是载体的厚度,为0.035或更小。 保护片可以均匀地保护漆膜,并且容易地剥离并除去,而不会引起环境问题,并且粘合剂层残留粘合剂。 即使当片材附着在汽车的未完全固化的漆膜上,并且在夏天的外部高温下允许长时间放置时,片材不会引起漆膜的变形和变形的微变形 在压敏粘合剂层的边缘部分处的漆膜。 保护片可以保持在滚动状态,而不会由于例如望远镜现象而导致形状的改变。