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    • 4. 发明专利
    • Protective sheet for chemical solution treatment
    • 化学溶液处理保护表
    • JP2014136746A
    • 2014-07-28
    • JP2013005898
    • 2013-01-17
    • Nitto Denko Corp日東電工株式会社
    • HAYATA MAIKO
    • C09J7/02C03C15/00C09J11/06C09J131/02C09J133/00C09J133/08C09J133/10C09J175/04C23F1/00C25D5/02H05K3/06H05K3/18
    • PROBLEM TO BE SOLVED: To provide a protective sheet for a chemical solution treatment capable of achieving both of chemical liquid infiltration protective property and peeling operation property from an adherend at high level.SOLUTION: There is provided a protective sheet for a chemical solution treatment having a base material and an adhesive agent layer arranged on a single side of the base material. The adhesive agent constituting the adhesive agent layer is an acrylic adhesive agent mainly containing an acrylic polymer. The protective sheet has a low-speed peeling intensity measured with a condition of an elongation speed of 300 mm/min. of 0.1 N/20 mm or more, a high-speed peeling intensity measured with the condition of the elongation speed of 10 m/min. of 3 N/20 mm or less, and a gel fraction of the acrylic adhesive agent of 25 mass% to 70 mass%.
    • 要解决的问题:提供一种用于化学溶液处理的保护片,其能够实现高水平的被粘物的化学液体浸润保护性和剥离操作性。两者均提供了用于化学溶液处理的保护片,其具有 基材和粘合剂层,其布置在基材的单侧上。 构成粘合剂层的粘合剂是主要含有丙烯酸类聚合物的丙烯酸粘合剂。 保护片具有以伸长速度为300mm / min的条件测定的低速剥离强度。 为0.1N / 20mm以上,以伸长速度为10m / min的条件测定的高速剥离强度。 3N / 20mm以下,丙烯酸类粘合剂的凝胶分数为25质量%〜70质量%。
    • 6. 发明专利
    • Protective sheet and use thereof
    • 保护表及其使用
    • JP2011148943A
    • 2011-08-04
    • JP2010013026
    • 2010-01-25
    • Nitto Denko Corp日東電工株式会社
    • HAYATA MAIKOOKUMURA KAZUTOYAMAMOTO MITSUJI
    • C09J7/02H05K3/28
    • C09J7/243C09J2201/622C09J2433/00Y10T428/24975Y10T428/28
    • PROBLEM TO BE SOLVED: To provide a protective sheet having excellent performance as a protective sheet (e.g. a protective sheet for plating masking) and having good handleability. SOLUTION: The protective sheet 10 comprises a resin film 1 as a base material and a pressure-sensitive adhesive layer 2 disposed on one surface of the base material. The protective sheet 10 satisfies all of the following conditions (A) to (D): (A) a total flexural rigidity value D Trt in first and second directions at 25°C is 3.0×10 -6 to 20×10 -6 Pa m 3 , (B) a total flexural rigidity value D Tht at 80°C is 0.10×10 -6 to 1.2×10 -6 Pa m 3 , (C) a flexural rigidity ratio D R defined by D Trt /D Tht is 3.0-80, and (D) tensile force T1 rt , T2 rt in 10% stretching in first and second directions at 25°C are ≥5.0 N/10 mm each. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供作为保护片(例如电镀掩蔽用保护片)具有优异性能的保护片,并且具有良好的可操作性。 < P>解决方案:保护片10包括作为基材的树脂膜1和设置在基材的一个表面上的压敏粘合剂层2。 保护片10满足以下所有条件(A)〜(D):(A)25℃下的第一和第二方向的总抗弯刚度值D Trt 为3.0×10 -6 至20×10 -6 Pa m 3 ,(B)总弯曲刚度值D Tht °C为0.10×10 -6 至1.2×10 -6 Pa m 3 ,(C)弯曲刚度比D 由D / T 定义的R 为3.0-80,(D)拉伸力T1 ,T2