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    • 2. 发明公开
    • PROCESS FOR PRODUCTION OF PRESSURE-SENSITIVE ADHESIVE SHEETS
    • VERFAHREN ZUR HERSTELLUNG DRUCKEMPFINDLICHER HAFTFOLIEN
    • EP2495293A1
    • 2012-09-05
    • EP10826622.2
    • 2010-10-22
    • Nitto Denko Corporation
    • HIROSE, IsaoFUJIWARA, ShuzoSHIMAZAKI, YuutaHIROSE, Tetsuya
    • C09J7/02C09J7/00
    • C09J7/38B32B37/15B32B2310/0831C09J7/10C09J2201/36C09J2205/31
    • Provided is a process for producing a pressure-sensitive adhesive sheet by laminating layers of active-energy-ray-curable compositions and irradiating the laminate with an active energy ray. The processes gives a pressure-sensitive adhesive sheet with less defects at low production cost and is applicable to the production of pressure-sensitive adhesive sheets of various kinds. The process includes: Steps A1 and A2 of applying an active-energy-ray-curable composition to one surface of a first carrier and to one surface of a second carrier using a die coater to form coated layers thereon; Step B of placing the resulting first and second carriers so that the coating-layer-side surfaces of the carriers face each other, and introducing an active-energy-ray-curable composition into between the first and second carriers; and Step C of irradiating a multilayer assemblage with an active energy ray, the multilayer assemblage obtained in Step B and including the active-energy-ray-curable compositions between the first and second carriers.
    • 提供了一种通过层叠活性能量射线固化性组合物层并用活性能量射线照射层压体来制造压敏粘合片的方法。 该方法在低生产成本下产生具有较少缺陷的压敏粘合片,并且可用于生产各种压敏粘合片。 该方法包括:使用模涂机将活性能量射线固化组合物施加到第一载体的一个表面和第二载体的一个表面上以在其上形成涂层的步骤A1和A2; 步骤B将所得到的第一和第二载体放置成使得载体的涂层侧表面彼此面对,并将活性能量射线固化组合物引入第一和第二载体之间; 和步骤C,用活性能量射线照射多层组合物,步骤B中得到的多层组合物,并且在第一和第二载体之间包含活性能量射线可固化组合物。
    • 9. 发明公开
    • ACRYLIC PRESSURE-SENSITIVE ADHESIVE TAPE OR SHEET
    • ACRYLHAFTKLEBEBAND ODER FOLIE
    • EP2298844A1
    • 2011-03-23
    • EP09754400.1
    • 2009-05-20
    • Nitto Denko Corporation
    • NONAKA, AkikoINOKUCHI, ShinjiHIROSE, Tetsuya
    • C09J7/00C09J11/04C09J133/04
    • C09J133/02C08F222/1006C08F2220/1858C09J7/22C09J7/243C09J7/29C09J7/38C09J7/405C09J11/04C09J133/062C09J2201/162C09J2201/606C09J2203/306C09J2423/006C09J2423/046C09J2433/00Y10T428/266Y10T428/2848C08F220/06
    • Provided is an acrylic pressure-sensitive adhesive tape or sheet that shows high initial low-temperature adhesive strength, and is superior in suppression of the liner pop-off.
      The acrylic pressure-sensitive adhesive tape or sheet according to the present invention is characterized in that it is an acrylic pressure-sensitive adhesive tape or sheet having a pressure-sensitive adhesive layer and a release liner, in which: the pressure-sensitive adhesive layer is a bubble-mixed inorganic filler-containing acrylic pressure-sensitive adhesive layer containing an acrylic polymer formed from an acrylic monomer mixture containing an alkyl (meth)acrylate ester (a) having an alkyl group having a carbon number of 1 to 14 and a polar group-containing vinyl monomer (b), an inorganic filler, and bubbles; and the release liner is a release liner having a low-density polyethylene layer as one surface layer, a mixed resin layer containing a low-density polyethylene and a high-density polyethylene as resin components as the other surface layer, and additionally a high-density polyethylene layer as an intermediate layer.
    • 本发明提供初始低温粘合强度高的丙烯酸类粘合带或片材,并且能够抑制衬垫弹性。 根据本发明的丙烯酸类压敏粘合带或片材的特征在于它是具有压敏粘合剂层和剥离衬垫的丙烯酸类压敏粘合带或片材,其中:压敏粘合剂层 是含有由含有碳原子数为1〜14的烷基的(甲基)丙烯酸烷基酯(a)的丙烯酸系单体混合物形成的丙烯酸类聚合物的气泡混合无机填料的丙烯酸系压敏粘合剂层, 含极性基团的乙烯基单体(b),无机填料和气泡; 剥离衬垫是具有低密度聚乙烯层作为一个表面层的剥离衬垫,含有低密度聚乙烯和作为树脂成分的高密度聚乙烯作为另一表面层的混合树脂层, 密度聚乙烯层作为中间层。
    • 10. 发明公开
    • ACRYLIC ADHESIVE TAPE OR SHEET, AND METHOD FOR PRODUCING THE SAME
    • ACRYL-KLEBEBAND ODER-FOLIE SOWIE HERSTELLUNGSVERFAHRENDAFÜR
    • EP2072594A1
    • 2009-06-24
    • EP07829458.4
    • 2007-10-10
    • NITTO DENKO CORPORATION
    • KONDOU, TakashiSHIRAI, MitsuyoshiUESUGI, MasanoriOKAMOTO, MasayukiMAEDA, KazuhisaHIROSE, TetsuyaINOKUCHI, Shinji
    • C09J7/02B32B27/00B32B27/30C09J133/08
    • C09J133/04C08K7/20C08L2312/06C09J7/24C09J7/385C09J2205/106C09J2205/11C09J2433/00C09J2433/006Y10T428/2809
    • Disclosed is an acrylic pressure-sensitive adhesive tape or sheet that exhibits satisfactory adhesion to hard-to-adhere adherends.
      The acrylic pressure-sensitive adhesive tape or sheet includes a microsphere-containing viscoelastic layer (X); and a pressure-sensitive adhesive layer (Y) arranged on at least one side of the viscoelastic layer (X). The pressure-sensitive adhesive layer (Y) is derived from an acrylic pressure-sensitive adhesive composition through the application of an active energy ray, and the acrylic pressure-sensitive adhesive composition contains (a) a vinyl monomer mixture mainly containing an alkyl (meth)acrylate (a1) whose alkyl moiety has 2 to 14 carbon atoms, or a partial polymer of the vinyl monomer mixture; (b) a photoinitiator; and (c) an alkylphenol tackifier. The acrylic pressure-sensitive adhesive composition preferably contains 0.001 to 5 parts by weight of the photoinitiator (b) and 0.01 to 25 parts by weight of the alkylphenol tackifier (c) per 100 parts by weight of the vinyl monomer mixture or a partial polymer thereof (a).
    • 公开了一种对难粘附被粘物表现出令人满意的粘合性的丙烯酸类压敏粘合带或片。 丙烯酸类压敏粘合带或片包含含微球体的粘弹性层(X); 和设置在粘弹性层(X)的至少一侧的压敏粘合剂层(Y)。 压敏粘合剂层(Y)通过施加活性能量射线从丙烯酸类压敏粘合剂组合物得到,丙烯酸类压敏粘合剂组合物含有(a)主要含有(甲基) )丙烯酸酯(a1),其烷基部分具有2〜14个碳原子的部分聚合物或乙烯基单体混合物的部分聚合物; (b)光引发剂; 和(c)烷基酚增粘剂。 丙烯酸类压敏粘合剂组合物优选每100重量份乙烯基单体混合物或其部分聚合物含有0.001-5重量份的光引发剂(b)和0.01-25重量份的烷基酚增粘剂(c) (一个)。