公开(公告)号：US20220162484A1

公开(公告)日：2022-05-26

申请号：US17435465

申请日：2020-02-13

Applicant: NITTO DENKO CORPORATION

Inventor： Kai OKAHARA ,  Amane SAWAMURA ,  Shuuhei YAMAMOTO

IPC: C09J7/38 ,  C09J7/21 ,  C09J11/08

Abstract: Provided is a PSA sheet comprising a fabric sheet and a PSA layer laminated on the fabric sheet. The PSA layer comprises a base polymer and a tackifier resin. The base polymer is a block copolymer of a monovinyl-substituted aromatic compound and a conjugated diene compound. The tackifier resin comprises a tackifier resin having a softening point below 120° C. and a tackifier resin having a softening point of 120° C. or higher. The fabric sheet has a thickness of 15 μm or greater and 50 μm or less as well as a bulk density of 0.25 g/cm3 or higher and 0.50 g/cm3 or lower.

公开(公告)号：US20170335142A1

公开(公告)日：2017-11-23

申请号：US15529560

申请日：2015-11-27

Applicant: NITTO DENKO CORPORATION

Inventor： Shuuhei YAMAMOTO ,  Kiichiro MATSUSHITA

IPC: C09J7/02 ,  B32B7/12 ,  B32B27/40 ,  B32B5/18 ,  B32B7/06 ,  B32B27/36 ,  C09J133/14

Abstract: Provided is a PSA sheet capable of bringing about good air release properties in mobile electronic applications. The present invention provides a PSA sheet for mobile electronics. The PSA sheet comprises a substrate film and a PSA layer provided to at least one face of the substrate film. The PSA layer has a thickness of 20 μm or less. The PSA sheet further comprises a coating layer that partially covers the PSA layer surface. The coating layer has a thickness less than 3 μm.

公开(公告)号：US20170260425A1

公开(公告)日：2017-09-14

申请号：US15529624

申请日：2015-11-27

Applicant: NITTO DENKO CORPORATION

Inventor： Shuuhei YAMAMOTO ,  Kiichiro MATSUSHITA

IPC: C09J7/02

CPC classification number: B32B27/40 ,  B32B3/00 ,  B32B5/18 ,  B32B7/06 ,  B32B7/12 ,  B32B7/14 ,  B32B15/08 ,  B32B15/09 ,  B32B15/12 ,  B32B25/06 ,  B32B25/08 ,  B32B27/065 ,  B32B27/08 ,  B32B27/10 ,  B32B27/12 ,  B32B27/281 ,  B32B27/304 ,  B32B27/306 ,  B32B27/32 ,  B32B27/34 ,  B32B27/36 ,  B32B29/005 ,  B32B29/007 ,  B32B2250/02 ,  B32B2250/03 ,  B32B2250/24 ,  B32B2250/26 ,  B32B2255/02 ,  B32B2255/06 ,  B32B2255/10 ,  B32B2255/102 ,  B32B2255/12 ,  B32B2255/26 ,  B32B2255/28 ,  B32B2266/0207 ,  B32B2266/0228 ,  B32B2266/0235 ,  B32B2266/0242 ,  B32B2266/025 ,  B32B2266/0257 ,  B32B2266/0264 ,  B32B2266/0278 ,  B32B2307/412 ,  B32B2307/414 ,  B32B2307/50 ,  B32B2307/538 ,  B32B2307/72 ,  B32B2307/748 ,  B32B2309/105 ,  B32B2405/00 ,  C09J7/22 ,  C09J7/38 ,  C09J133/08 ,  C09J133/14 ,  C09J2201/122 ,  C09J2201/128 ,  C09J2201/16 ,  C09J2201/28 ,  C09J2201/606 ,  C09J2203/318 ,  C09J2203/326 ,  C09J2205/114 ,  C09J2400/243 ,  C09J2423/006 ,  C09J2433/00 ,  C09J2433/006 ,  C09J2467/006 ,  C09J2475/005 ,  C09J2493/00 ,  C08F2220/1825 ,  C08F2220/1858 ,  C08F220/06 ,  C08F220/20

Abstract: Provided is a PSA sheet with which good air release properties can be obtained while whose quality can be further enhanced. This invention provides a PSA sheet comprising a substrate film and a PSA layer provided to at least one face of the substrate film. The PSA sheet further comprises a coating layer partially covering the PSA layer surface. The PSA sheet's adhesive is formed of the PSA layer and the coating layer. The coating layer has a linearly extending part running from one edge to another edge of the adhesive face. The linearly extending part has a first face forming the PSA sheet's adhesive face and a second face located on the PSA layer side relative to the first face. The second face of the linearly extending part forms an overall gently curved line in a cross section perpendicularly intersecting the length direction of the linearly extending part.

公开(公告)号：US20130236724A1

公开(公告)日：2013-09-12

申请号：US13785074

申请日：2013-03-05

Applicant: NITTO DENKO CORPORATION

Inventor： Shuuhei YAMAMOTO ,  Kazuyuki YAGURA

IPC: C09J7/02

CPC classification number: C09J7/38 ,  C09J7/35 ,  C09J2201/134 ,  C09J2201/622 ,  C09J2421/00 ,  C09J2433/00 ,  C09J2453/00 ,  Y10T428/2826

Abstract: A double-sided adhesive tape for fixing a polishing member includes: a substrate; a thermal adhesive layer that is provided on one surface of the substrate and is formed of a thermal adhesive containing 40 to 100% by mass of a thermoplastic elastomer based on the total mass of the thermal adhesive; and a pressure-sensitive adhesive layer provided on the other surface of the substrate. When being pressure-bonded to a polyethylene terephthalate film with a pressure of 5.19 kgf and at 50° C. for 30 seconds, the thermal adhesive layer has a 180°-peeling pressure-sensitive adhesive force to the polyethylene terephthalate film of 15 N/20 mm or more at a tensile speed of 50 mm/min.

Abstract translation: 用于固定抛光构件的双面胶带包括：基板; 热粘合剂层，其设置在所述基材的一个表面上，并且由热粘合剂形成，所述热粘合剂包含基于所述热粘合剂的总质量为40〜100质量％的热塑性弹性体; 以及设置在基板的另一个表面上的压敏粘合剂层。 当压力为5.19kgf的聚对苯二甲酸乙二醇酯薄膜和50℃30秒时，热粘合剂层对聚对苯二甲酸乙二醇酯薄膜的粘合力为180N，粘度为15N / 20mm以上，拉伸速度为50mm / min。