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1. 发明申请

US20110244227A1 PRESSURE-SENSITIVE ADHESIVE TAPE 审中-公开
标题翻译：压敏胶带
公开(公告)号：US20110244227A1
公开(公告)日：2011-10-06
申请号：US13025379
申请日：2011-02-11
申请人： Naoto HAYASHI , Shinsuke IKISHIMA , Kooki OOYAMA , Keiji HAYASHI , Shou UCHIDA , Kouhei TAKEDA , Ryohei SAWAZAKI
发明人： Naoto HAYASHI , Shinsuke IKISHIMA , Kooki OOYAMA , Keiji HAYASHI , Shou UCHIDA , Kouhei TAKEDA , Ryohei SAWAZAKI
IPC分类号： B32B7/12 , B29C47/06
CPC分类号： B32B7/12 , B32B25/08 , B32B25/16 , B32B27/08 , B32B27/28 , B32B27/302 , B32B27/304 , B32B27/306 , B32B27/308 , B32B27/32 , B32B27/34 , B32B27/36 , B32B27/40 , B32B2274/00 , B32B2307/538 , B32B2307/712 , B32B2307/732 , B32B2405/00 , C09J7/381 , C09J2201/36 , C09J2453/00 , Y10T428/2848
摘要： Provided is the following novel pressure-sensitive adhesive tape that expresses a sufficiently strong adhesion for an adherend. The adhesion of the novel pressure-sensitive adhesive tape in its production process is controlled so as to be moderately weak. Accordingly, a peeling failure and the occurrence of a wrinkle are sufficiently suppressed, and hence stable product supply is performed. The pressure-sensitive adhesive tape of the present invention includes at least three layers including: a base material layer (A); a first pressure-sensitive adhesive layer (B1); and a second pressure-sensitive adhesive layer (B2) in the stated order, in which: the base material layer (A) contains a thermoplastic resin; each of the first pressure-sensitive adhesive layer (B1) and the second pressure-sensitive adhesive layer (B2) contains a tackifier; a ratio R1/R2 of a content (R1) of the tackifier in the first pressure-sensitive adhesive layer (B1) to a content (R2) of the tackifier in the second pressure-sensitive adhesive layer (B2) is 0.90 to 1.10; and the content of the tackifier in the second pressure-sensitive adhesive layer (B2) is 5 wt % or more.
摘要翻译：提供了对于被粘物表现出足够强的粘附性的以下新型压敏粘合带。新型压敏粘合带在其生产过程中的粘合力被控制为适度弱。因此，能够充分抑制剥离破坏和褶皱的发生，从而进行稳定的产品供给。本发明的压敏粘合带包括至少三层，包括：基材层（A）; 第一压敏粘合剂层（B1）; 和第二压敏粘合剂层（B2），其中：基材层（A）含有热塑性树脂; 第一压敏粘合剂层（B1）和第二压敏粘合剂层（B2）中的每一个含有增粘剂; 第一粘合剂层（B1）中的增粘剂的含量（R1）与第二粘合剂层（B2）中的增粘剂的含量（R2）的比率R1 / R2为0.90〜1.10; 并且第二压敏粘合剂层（B2）中的增粘剂的含量为5重量％以上。

2. 发明申请

US20110287240A1 PRESSURE-SENSITIVE ADHESIVE TAPE 审中-公开
标题翻译：压敏胶带
公开(公告)号：US20110287240A1
公开(公告)日：2011-11-24
申请号：US13073080
申请日：2011-03-28
申请人： Shinsuke IKISHIMA , Naoto HAYASHI , Kooki OOYAMA , Keiji HAYASHI , Shou UCHIDA , Kouhei TAKEDA , Ryohei SAWAZAKI
发明人： Shinsuke IKISHIMA , Naoto HAYASHI , Kooki OOYAMA , Keiji HAYASHI , Shou UCHIDA , Kouhei TAKEDA , Ryohei SAWAZAKI
IPC分类号： C09J7/02 , B32B7/02 , B29C47/06
CPC分类号： B32B7/12 , B32B7/02 , B32B27/08 , B32B27/16 , B32B27/302 , B32B27/304 , B32B27/306 , B32B27/308 , B32B27/32 , B32B27/34 , B32B27/36 , B32B27/365 , B32B27/40 , B32B2274/00 , B32B2307/732 , B32B2405/00 , C09J7/381 , C09J2201/36 , C09J2453/00 , Y10T428/24967 , Y10T428/269
摘要： Provided is a novel pressure-sensitive adhesive tape having a moderately weak adhesion during a time period from a production process (during its production) to the time of the accomplishment of the product as a result of the completion of the production (immediately after the production). Accordingly, the peeling failure, or the like, resulting from strong adherence of a pressure-sensitive adhesive layer to a roll or the like at the time of the production can be sufficiently suppressed. As a result, stable product supply can be performed. In addition, even after the lapse of about a half day from immediately after the production, the pressure-sensitive adhesive tape can be easily rewound. On the other hand, the pressure-sensitive adhesive tape can express a sufficiently strong adhesion for an adherend after the lapse of a predetermined time from the production (e.g., at the time of its use). The pressure-sensitive adhesive tape of the present invention includes at least three layers including: a base material layer (A); a first pressure-sensitive adhesive layer (B1); and a second pressure-sensitive adhesive layer (B2) in the stated order, in which: the base material layer (A) contains a thermoplastic resin; the first pressure-sensitive adhesive layer (B1) contains a tackifier at a content of 12 wt % or more; the second pressure-sensitive adhesive layer (B2) contains a tackifier at a content of 10 wt % or less; and the second pressure-sensitive adhesive layer (B2) has a thickness of 10 μm or more.
摘要翻译：提供了一种新的压敏粘合带，其在生产过程（在其生产中）到生产完成（紧随生产之后）完成产品的时间段内具有适度弱的粘合性）。因此，可以充分地抑制在制造时粘合剂层对辊等的强粘附而产生的剥离破坏等。因此，可以实现稳定的产品供应。此外，即使在生产后立即经过约半天之后，也可以容易地卷绕压敏粘合带。另一方面，压敏粘合带在从生产（例如在使用时）经过预定时间之后，可以对被粘物表现出足够强的粘合性。本发明的压敏粘合带包括至少三层，包括：基材层（A）; 第一压敏粘合剂层（B1）; 和第二压敏粘合剂层（B2），其中：基材层（A）含有热塑性树脂; 第一粘合剂层（B1）含有12重量％以上的增粘剂，第二压敏粘合剂层（B2）含有10重量％以下的增粘剂，第二粘合剂层（B2）的厚度为10μm以上。

3. 发明申请

US20110287253A1 PRESSURE-SENSITIVE ADHESIVE TAPE 审中-公开
标题翻译：压敏胶带
公开(公告)号：US20110287253A1
公开(公告)日：2011-11-24
申请号：US13072983
申请日：2011-03-28
申请人： Naoto HAYASHI , Shinsuke IKISHIMA , Kooki OOYAMA , Keiji HAYASHI , Shou UCHIDA , Kouhei TAKEDA , Ryohei SAWAZAKI
发明人： Naoto HAYASHI , Shinsuke IKISHIMA , Kooki OOYAMA , Keiji HAYASHI , Shou UCHIDA , Kouhei TAKEDA , Ryohei SAWAZAKI
IPC分类号： C09J7/02 , B32B27/32
CPC分类号： C09J7/381 , C09J2201/36 , C09J2453/00 , Y10T428/26 , Y10T428/266 , Y10T428/269 , Y10T428/2848
摘要： Provided is the following novel pressure-sensitive adhesive tape. The pressure-sensitive adhesive tape has a moderately weak adhesion during a time period from a production process (during its production) to the time of the accomplishment of the product as a result of the completion of the production (immediately after the production). Accordingly, the occurrence of a peeling trace, the occurrence of a peeling sound, and the like resulting from strong adherence of a pressure-sensitive adhesive layer to a roll or the like at the time of the production can be sufficiently suppressed. As a result, stable product supply can be performed. On the other hand, the pressure-sensitive adhesive tape can express a sufficiently strong adhesion for an adherend after a lapse of a predetermined time from the production (e.g., at the time of its use). The pressure-sensitive adhesive tape includes at least three layers including: a base material layer (A); a first pressure-sensitive adhesive layer (B1); and a second pressure-sensitive adhesive layer (B2) in the stated order, in which: the base material layer (A) contains a thermoplastic resin; the first pressure-sensitive adhesive layer (B1) contains a tackifier at a content of 12 wt % or more; the second pressure-sensitive adhesive layer (B2) contains a tackifier at a content of 10 wt % or less; and the adhesive strength of the pressure-sensitive adhesive tape immediately after the production for a stainless plate measured in conformity with JIS Z 0237 (2000) is 0.7 N/20 mm or less.
摘要翻译：提供以下新型压敏粘合带。在生产过程（生产期间）到生产完成（生产之后）完成产品的时间段期间，压敏粘合带具有适度弱的粘附性。因此，能够充分地抑制在制造时粘合剂层对辊等的强粘附而产生的剥离痕迹，剥离声等的发生。因此，可以实现稳定的产品供应。另一方面，压敏粘合带在从生产（例如在使用时）经过预定时间之后，可以对被粘物表现出足够强的粘合性。所述压敏粘合带包括至少三层，包括：基材层（A）; 第一压敏粘合剂层（B1）; 和第二压敏粘合剂层（B2），其中：基材层（A）含有热塑性树脂; 第一粘合剂层（B1）含有12重量％以上的增粘剂，第二压敏粘合剂层（B2）含有10重量％以下的增粘剂，并且根据JIS Z 0237（2000）测定的不锈钢板的制造之后的压敏粘合带的粘合强度为0.7N / 20mm以下。

4. 发明申请

US20110244221A1 PRESSURE-SENSITIVE ADHESIVE TAPE 审中-公开
标题翻译：压敏胶带
公开(公告)号：US20110244221A1
公开(公告)日：2011-10-06
申请号：US13025299
申请日：2011-02-11
申请人： Naoto HAYASHI , Shinsuke IKISHIMA , Kooki OOYAMA , Keiji HAYASHI , Shou UCHIDA , Kouhei TAKEDA , Ryohei SAWAZAKI
发明人： Naoto HAYASHI , Shinsuke IKISHIMA , Kooki OOYAMA , Keiji HAYASHI , Shou UCHIDA , Kouhei TAKEDA , Ryohei SAWAZAKI
IPC分类号： B32B7/12 , B32B27/08 , B29C47/06
CPC分类号： B32B7/12 , B32B25/08 , B32B25/16 , B32B27/08 , B32B27/302 , B32B27/304 , B32B27/306 , B32B27/308 , B32B27/32 , B32B27/34 , B32B27/36 , B32B27/40 , B32B2274/00 , B32B2307/538 , B32B2307/712 , B32B2307/732 , B32B2405/00 , C09J7/381 , C09J2201/36 , C09J2453/00 , Y10T428/26 , Y10T428/264 , Y10T428/2848
摘要： Provided is the following novel pressure-sensitive adhesive tape. The pressure-sensitive adhesive tape has a moderately weak adhesion during a time period from a production process (during its production) to the time of the accomplishment of the product as a result of the completion of the production (immediately after the production). Accordingly, a peeling failure and the occurrence of a wrinkle resulting from strong adherence of a pressure-sensitive adhesive layer to a roll or the like at the time of the production can be sufficiently suppressed. As a result, stable product supply can be performed. On the other hand, the pressure-sensitive adhesive tape can express a sufficiently strong adhesion for an adherend after a lapse of a predetermined time from the production (e.g., at the time of its use). The pressure-sensitive adhesive tape includes at least three layers including: a base material layer (A); a first pressure-sensitive adhesive layer (B1); and a second pressure-sensitive adhesive layer (B2) in the stated order, in which: the base material layer (A) contains a thermoplastic resin; the first pressure-sensitive adhesive layer (B1) contains a tackifier at a content of 12 wt % or more; and the second pressure-sensitive adhesive layer (B2) contains a tackifier at a content of 10 wt % or less.
摘要翻译：提供以下新型压敏粘合带。在生产过程（生产期间）到生产完成（生产之后）完成产品的时间段期间，压敏粘合带具有适度弱的粘附性。因此，能够充分地抑制剥离破坏，并且能够充分地抑制在制造时粘合剂层对辊等的强粘附而产生的褶皱的发生。因此，可以实现稳定的产品供应。另一方面，压敏粘合带在从生产（例如在使用时）经过预定时间之后，可以对被粘物表现出足够强的粘合性。所述压敏粘合带包括至少三层，包括：基材层（A）; 第一压敏粘合剂层（B1）; 和第二压敏粘合剂层（B2），其中：基材层（A）含有热塑性树脂; 第一粘合剂层（B1）含有12重量％以上的增粘剂，并且第二压敏粘合剂层（B2）含有10重量％以下的增粘剂。

5. 发明申请

US20110020637A1 LAMINATED FILM AND PRESSURE-SENSITIVE ADHESIVE TAPE 审中-公开
标题翻译：层压膜和压敏胶带
公开(公告)号：US20110020637A1
公开(公告)日：2011-01-27
申请号：US12829640
申请日：2010-07-02
申请人： Shinsuke IKISHIMA , Ikkou HANAKI , Shou UCHIDA , Kouhei TAKEDA , Keiji HAYASHI , Kooki OOYAMA , Naoto HAYASHI
发明人： Shinsuke IKISHIMA , Ikkou HANAKI , Shou UCHIDA , Kouhei TAKEDA , Keiji HAYASHI , Kooki OOYAMA , Naoto HAYASHI
IPC分类号： B32B27/00 , C09J7/02 , B32B27/32
CPC分类号： B32B27/08 , B32B27/18 , B32B27/20 , B32B27/304 , B32B27/306 , B32B27/308 , B32B27/32 , B32B27/34 , B32B27/36 , B32B27/365 , B32B27/40 , B32B2250/24 , B32B2264/10 , B32B2270/00 , B32B2307/308 , B32B2307/40 , B32B2307/538 , B32B2405/00 , B32B2451/00 , B32B2457/00 , B32B2519/00 , B32B2605/00 , C09J7/29 , C09J2423/006 , C09J2431/006 , Y10T428/24355 , Y10T428/265 , Y10T428/2848 , Y10T428/31504 , Y10T428/31931
摘要： Provided is a laminated film and a pressure-sensitive adhesive tape in each of which a difference between an image clarity in a lengthwise direction and an image clarity in a widthwise direction is small and hence the distortion of transmitted light is small, and desired mechanical properties are substantially free of reduction. The laminated film of the present invention is a laminated film including a base material layer, and a surface layer, in which the base material layer contains a thermoplastic resin, and the absolute value of a difference between an image clarity in the lengthwise direction of the laminated film and an image clarity in the widthwise direction of the laminated film is 10% or less.
摘要翻译：本发明提供一种层叠膜和粘合带，其中，长度方向上的图像透明度和宽度方向的图像清晰度之间的差异小，因此透射光的变形小，并且期望的机械性能基本上没有减少。本发明的层叠膜是包含基材层和基材层含有热塑性树脂的表层的层压膜，其中，在基材层的长度方向上的图像透明度之间的差绝对值叠层膜的宽度方向的图像透明度为10％以下。

6. 发明申请

US20110236653A1 BASE MATERIAL FOR SURFACE PROTECTIVE SHEET AND SURFACE PROTECTIVE SHEET 审中-公开
标题翻译：用于表面保护片和表面保护片的基材
公开(公告)号：US20110236653A1
公开(公告)日：2011-09-29
申请号：US13028278
申请日：2011-02-16
申请人： Keiji HAYASHI , Ikkou HANAKI , Shou UCHIDA , Jiro YAMATO , Kouhei TAKEDA , Ryohei SAWAZAKI
发明人： Keiji HAYASHI , Ikkou HANAKI , Shou UCHIDA , Jiro YAMATO , Kouhei TAKEDA , Ryohei SAWAZAKI
IPC分类号： B32B3/10
CPC分类号： C08L23/06 , C08G18/6229 , C08K7/16 , C08L33/12 , C08L2205/22 , C09J7/243 , C09J2205/106 , C09J2425/006 , C09J2433/006 , Y10T428/24893
摘要： Provided is the following base material for a surface protective sheet. The slipping property of the back surface of the sheet is moderately excellent, and scratches in the surface of an adherend laminated to contact the back surface of the sheet can be suppressed. Also provided is a surface protective sheet containing such base material for a surface protective sheet. The base material for a surface protective sheet of the present invention is a base material for a surface protective sheet including a base material layer (A), in which: at least one surface of the base material for a surface protective sheet is the surface of the base material layer (A); the base material layer (A) contains a polyolefin-based resin as a main component; the base material layer (A) contains polymer fine particles having an average particle diameter of 3 to 20 μm at a content of 0.1 to 20 wt % with respect to 100 parts by weight of the polyolefin-based resin; the surface of the base material layer (A) has a surface roughness Ra of 0.15 to 0.60 μm; and the surface of the base material layer (A) has a coefficient of dynamic friction (I) with respect to an aluminum plate of 0.35 to 1.00.
摘要翻译：提供以下用于表面保护片的基材。片材背面的滑动特性适度地优异，可以抑制层叠以贴合在片材的背面上的被粘物表面的划痕。还提供了包含用于表面保护片的这种基材的表面保护片。本发明的表面保护片用基材是具有基材层（A）的表面保护片用基材，其中：表面保护片用基材的至少一面为基材层（A）; 基材层（A）含有聚烯烃类树脂作为主要成分; 相对于100重量份的聚烯烃类树脂，基材层（A）含有平均粒径为3〜20μm的聚合物微粒，含量为0.1〜20重量％基材层（A）的表面的表面粗糙度Ra为0.15〜0.60μm; 并且基材层（A）的表面相对于铝板的动摩擦系数（I）为0.35〜1.00。

7. 发明申请

US20110129643A1 SURFACE PROTECTIVE SHEET 审中-公开
标题翻译：表面保护表
公开(公告)号：US20110129643A1
公开(公告)日：2011-06-02
申请号：US12956063
申请日：2010-11-30
申请人： Shou UCHIDA , Ryohei SAWAZAKI , Keiji HAYASHI , Kouhei TAKEDA
发明人： Shou UCHIDA , Ryohei SAWAZAKI , Keiji HAYASHI , Kouhei TAKEDA
IPC分类号： C09J7/02 , B32B3/00 , B32B5/00
CPC分类号： C09J153/025 , B32B7/12 , B32B27/30 , B32B27/32 , B32B2571/00 , C09J7/243 , C09J2201/16 , C09J2423/006 , Y10T428/24355 , Y10T428/265 , Y10T428/2848
摘要： Provided is a novel surface protective sheet including a pressure-sensitive adhesive layer on a supporting base material, in which the pressure-sensitive adhesive layer has a high anchoring force for the supporting base material, and no adhesive residue occurs upon peeling of the surface protective sheet after its attachment to an adherend. The surface protective sheet of the present invention is a surface protective sheet including: a supporting base material; a surface layer (I) as one outermost layer of the supporting base material; and a pressure-sensitive adhesive layer on the surface layer (I), in which: the pressure-sensitive adhesive layer contains a thermoplastic elastomer; and the surface layer (I) contains a linear, low-density polyethylene at the content of more than 50 wt %.
摘要翻译：提供了一种新颖的表面保护片，其在支撑基材上具有压敏粘合剂层，其中压敏粘合剂层对于支撑基材具有高的锚定力，并且在表面保护性剥离时不会发生粘合残留在附着到被粘物之后。本发明的表面保护片是表面保护片，其包括：支撑基材; 表层（I）作为支撑基材的最外层; 和表层（I）上的压敏粘合剂层，其中：压敏粘合剂层含有热塑性弹性体; 并且表面层（I）含有大于50重量％的线性低密度聚乙烯。

8. 发明申请

US20110129642A1 SURFACE PROTECTIVE SHEET 审中-公开
标题翻译：表面保护表
公开(公告)号：US20110129642A1
公开(公告)日：2011-06-02
申请号：US12956057
申请日：2010-11-30
申请人： Shou UCHIDA , Ryohei SAWAZAKI , Keiji HAYASHI , Kouhei TAKEDA
发明人： Shou UCHIDA , Ryohei SAWAZAKI , Keiji HAYASHI , Kouhei TAKEDA
IPC分类号： C09J7/02 , B32B27/32
CPC分类号： C09J7/29 , C09J7/241 , Y10T428/24355 , Y10T428/265 , Y10T428/2848
摘要： Provided is a novel surface protective sheet including a pressure-sensitive adhesive layer on a supporting base material, in which the pressure-sensitive adhesive layer has a high anchoring force for the supporting base material, and no adhesive residue occurs upon peeling of the surface protective sheet after its attachment to an adherend. The surface protective sheet of the present invention is a surface protective sheet including: a supporting base material; a surface layer (I) as one outermost layer of the supporting base material; and a pressure-sensitive adhesive layer on the surface layer (I), in which: the pressure-sensitive adhesive layer contains a thermoplastic elastomer; and the surface layer (I) contains a random polypropylene at a content of more than 50 wt %.
摘要翻译：提供了一种新颖的表面保护片，其在支撑基材上具有压敏粘合剂层，其中压敏粘合剂层对于支撑基材具有高的锚定力，并且在表面保护性剥离时不会发生粘合残留在附着到被粘物之后。本发明的表面保护片是表面保护片，其包括：支撑基材; 表层（I）作为支撑基材的最外层; 和表层（I）上的压敏粘合剂层，其中：压敏粘合剂层含有热塑性弹性体; 表面层（I）含有大于50重量％的无规聚丙烯。

9. 发明申请

US20120321884A1 PRESSURE-SENSITIVE ADHESIVE SHEET 审中-公开
标题翻译：压敏粘合片
公开(公告)号：US20120321884A1
公开(公告)日：2012-12-20
申请号：US13493222
申请日：2012-06-11
申请人： Akifumi KIDO , Shou UCHIDA , Ryohei SAWAZAKI , Masakazu MORIMOTO , Keiji HAYASHI
发明人： Akifumi KIDO , Shou UCHIDA , Ryohei SAWAZAKI , Masakazu MORIMOTO , Keiji HAYASHI
IPC分类号： C09J7/02 , B32B7/06
CPC分类号： C09J123/0853 , B32B27/08 , B32B27/32 , B32B2405/00 , C08F299/00 , C09J7/29 , C09J2201/162 , C09J2201/606 , C09J2423/00 , C09J2423/006 , C09J2453/006 , Y10T428/2839 , Y10T428/2848
摘要： Provided is a pressure-sensitive adhesive sheet having good unwinding property from a roll body or the like and excellent antistatic property, and suitable for a surface protective film or the like. A pressure-sensitive adhesive sheet of the present invention is a pressure-sensitive adhesive sheet including a back surface layer (A), a backing layer (B), and a pressure-sensitive adhesive layer (C), the back surface layer (A) and the pressure-sensitive adhesive layer (C) being outermost layers. The pressure-sensitive adhesive sheet has a 10-m/min unwinding force of 0.6 N/20 mm or less, and the back surface layer (A) has a surface resistance value of less than 1×1014Ω/□.
摘要翻译：本发明提供一种具有良好退卷性的压敏粘合片，其具有优异的抗静电性能，适用于表面保护膜等。本发明的压敏粘合片是包含背面层（A），背衬层（B）和压敏粘合剂层（C）的粘合片，背面层（A）），压敏粘合剂层（C）为最外层。该压敏粘合片的退卷力为10Nm / min，为0.6N / 20mm以下，背面层（A）的表面电阻值小于1×10 14Ω·cm。

10. 发明申请

US20120321887A1 PRESSURE-SENSITIVE ADHESIVE SHEET 审中-公开
标题翻译：压敏粘合片
公开(公告)号：US20120321887A1
公开(公告)日：2012-12-20
申请号：US13493099
申请日：2012-06-11
申请人： Shou UCHIDA , Akifumi KIDO , Masakazu MORIMOTO , Keiji HAYASHI , Ryohei SAWAZAKI
发明人： Shou UCHIDA , Akifumi KIDO , Masakazu MORIMOTO , Keiji HAYASHI , Ryohei SAWAZAKI
IPC分类号： B32B27/32
CPC分类号： G02B1/105 , B32B7/06 , B32B27/08 , B32B27/302 , B32B27/32 , B32B2250/24 , B32B2270/00 , B32B2274/00 , B32B2307/21 , B32B2405/00 , C09J7/401 , C09J2423/00 , C09J2423/045 , C09J2423/046 , C09J2425/00 , C09J2453/005 , C09J2471/005 , G02B1/14 , G02B1/16 , Y10T428/2848
摘要： Provided is a pressure-sensitive adhesive sheet having good unwinding property from a roll body or the like and excellent antistatic property, and suitable for a surface protective film or the like. A pressure-sensitive adhesive sheet of the present invention is a pressure-sensitive adhesive sheet including a back surface layer (A), a backing layer (B), and a pressure-sensitive adhesive layer (C), the back surface layer (A) and the pressure-sensitive adhesive layer (C) being outermost layers. The back surface layer (A) contains a block polymer formed of a block of a polyolefin and a block of a hydrophilic polymer at a content of 7 to 50 wt %, and the back surface layer (A) contains a releasing agent at a content of 2 to 20 wt %.
摘要翻译：本发明提供一种具有良好退卷性的压敏粘合片，其具有优异的抗静电性能，适用于表面保护膜等。本发明的压敏粘合片是包含背面层（A），背衬层（B）和压敏粘合剂层（C）的粘合片，背面层（A）），压敏粘合剂层（C）为最外层。背面层（A）含有由聚烯烃嵌段和含量为7〜50重量％的亲水性聚合物嵌段形成的嵌段聚合物，背面层（A）含有含量为的脱模剂为2〜20重量％。

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