公开(公告)号：US20160137884A1

公开(公告)日：2016-05-19

申请号：US14940210

申请日：2015-11-13

Applicant: NITTO DENKO CORPORATION

Inventor： Yasunori YAMAMOTO ,  Takeshi IGARASHI

IPC: C09J7/02

CPC classification number: C09J133/08 ,  C08F220/18 ,  C08L63/00 ,  C09J7/243 ,  C09J7/385 ,  C09J133/02 ,  C09J133/066 ,  C09J2201/622 ,  C09J2203/306 ,  C09J2423/006 ,  C09J2433/00 ,  C08F2220/1858 ,  C08F218/08 ,  C08F220/06 ,  C08F220/20

Abstract: This invention provides a PSA sheet having excellent fog preventability and rough surface conformability. Provided is a PSA sheet that comprises a substrate and a PSA layer provided on one face of the substrate. The PSA layer has an adhesive face that exhibits a 180° peel strength of 0.30 N/20 mm or greater to a polypropylene rough surface. The PSA sheet also shows a fog preventability of 80% or greater in the glass fogging test.

Abstract translation: 本发明提供了具有优异的防雾性和粗糙表面适应性的粘合片。 提供一种粘合片，其包含基板和设置在基板的一个面上的粘合剂层。 粘合剂层具有与聚丙烯粗糙表面呈180°/ 20mm以上的180°剥离强度的粘合面。 在玻璃雾化试验中，粘合片也显示80％以上的防雾性。

公开(公告)号：US20150218424A1

公开(公告)日：2015-08-06

申请号：US14611502

申请日：2015-02-02

Applicant: NITTO DENKO CORPORATION

Inventor： Takeshi IGARASHI ,  Yasunori YAMAMOTO ,  Nao WAKAYAMA

IPC: C09J7/02 ,  B32B27/08 ,  B32B27/32

CPC classification number: B32B27/32 ,  B32B7/00 ,  B32B7/12 ,  B32B27/00 ,  B32B27/06 ,  B32B27/08 ,  B32B27/28 ,  B32B27/30 ,  B32B2250/03 ,  B32B2250/242 ,  B32B2307/51 ,  B32B2307/54 ,  B32B2571/00 ,  C09J7/29 ,  C09J2201/122 ,  C09J2201/162 ,  C09J2201/606 ,  C09J2201/622 ,  C09J2423/006 ,  C09J2423/046 ,  Y10T428/2495

Abstract: Provided is a surface protective sheet substrate capable of forming a surface protective sheet endowed with both curling inhibition and adhesion mark inhibition. The surface protective sheet substrate provided by this invention comprises a polyolefin resin which accounts for more than 50% by weight of the entire substrate. The substrate comprises a layer X constituting a first surface of the substrate and a layer Y constituting the second surface of the substrate. The layer X is constituted with a resin composition having a tensile elastic modulus (EX) of 400 MPa or greater, but 750 MPa or less. The layer Y is constituted with a resin composition having a tensile elastic modulus (EY) of 400 MPa or greater, but 750 MPa or less. The layer X has a thickness tX and the layer Y has a thickness tY, satisfying 0.5≦tX·EX·tY·EY≦1.5.

Abstract translation: 提供一种表面保护片基材，其能够形成具有卷曲抑制和粘合标记抑制两者的表面保护片。 本发明提供的表面保护片基材包含占整个基材重量的50％以上的聚烯烃树脂。 基板包括构成基板的第一表面的层X和构成基板的第二表面的层Y。 层X由拉伸弹性模量（EX）为400MPa以上但为750MPa以下的树脂组合物构成。 层Y由拉伸弹性模量（EY）为400MPa以上但为750MPa以下的树脂组合物构成。 层X具有厚度tX，层Y的厚度tY满足0.5＆lt; nlE; tX·EX·tY·EY＆nlE; 1.5。

公开(公告)号：US20140023859A1

公开(公告)日：2014-01-23

申请号：US13939457

申请日：2013-07-11

Applicant: KANSAI PAINT CO., LTD. ,  NITTO DENKO CORPORATION

Inventor： Takeshi IGARASHI ,  Toshitaka SUZUKI ,  Nao WAKAYAMA ,  Yoshikuni HIRANO

IPC: C09J7/02

CPC classification number: C09J7/38 ,  C08L23/12 ,  C09J7/383 ,  C09J123/22 ,  C09J2203/306 ,  Y10T428/265 ,  Y10T428/2852 ,  C08L23/0815

Abstract: The present invention provides a paint film protection sheet comprising a support substrate and a PSA layer placed on the support substrate. The PSA constituting the PSA layer comprises a non-crosslinked rubber-based polymer as a base polymer, a tackifier resin (TH) having a softening point of 120° C. or above, and a tackifier resin (TL) having a softening point below 120° C. The mass ratio (TL/TH) of the tackifier resin (TL) content relative to the tackifier resin (TH) content has a value of 1.0 or larger and 30 or less.

Abstract translation: 本发明提供一种涂膜保护片，其包含支撑基板和位于支撑基板上的粘合剂层。 构成粘合剂层的PSA包括作为基础聚合物的非交联橡胶类聚合物，软化点为120℃以上的增粘树脂（TH）和软化点低于 120℃。增粘树脂（TL）含量相对于增粘树脂（TH）含量的质量比（TL / TH）为1.0以上且30以下。

公开(公告)号：US20140023858A1

公开(公告)日：2014-01-23

申请号：US13938766

申请日：2013-07-10

Applicant: NITTO DENKO CORPORATION

Inventor： Takeshi IGARASHI ,  Toshitaka SUZUKI ,  Nao WAKAYAMA

IPC: C09J7/02

CPC classification number: C09J7/383 ,  C09J2201/622 ,  C09J2203/306 ,  C09J2423/00 ,  Y10T428/265 ,  Y10T428/2878

Abstract: The present invention provides a surface protection sheet comprising a PSA layer on a support substrate. The PSA constituting the PSA layer comprises a rubber-based polymer as a base polymer and a tackifier resin having a softening point of 120° C. or above. The base polymer is not crosslinked. The tackifier resin content in the PSA is higher than zero part by mass, but 1.0 part by mass or less relative to 100 parts by mass of the base polymer.

Abstract translation: 本发明提供一种表面保护片，其包含在支撑基底上的粘合剂层。 构成粘合剂层的PSA包括作为基础聚合物的橡胶类聚合物和软化点为120℃以上的增粘树脂。 基础聚合物不交联。 PSA中的增粘树脂含量高于0质量份，相对于100质量份的基础聚合物为1.0质量份以下。

公开(公告)号：US20140023825A1

公开(公告)日：2014-01-23

申请号：US13942923

申请日：2013-07-16

Applicant: NITTO DENKO CORPORATION

Inventor： Takeshi IGARASHI ,  Toshitaka SUZUKI ,  Nao WAKAYAMA

IPC: C09J7/02

CPC classification number: C09J7/381 ,  C09J2201/622 ,  C09J2203/306 ,  C09J2423/00 ,  Y10T428/24355 ,  Y10T428/265

Abstract: The present invention provides a surface protection sheet comprising a PSA layer having a thickness smaller than 10 μm on a support substrate. The surface protection sheet exhibits a holding time of 50 seconds or longer in a constant load peel test comprising: pressure-bonding a 25 mm wide piece of the surface protection sheet to a painted plate prepared by coating a steel plate with an acid-epoxy crosslinked acrylic paint; and at 5 minutes after the pressure-bonding of the surface protection sheet, applying a 100 g load to a first edge of the surface protection sheet piece so as to yield a peel angle of 90°; with the holding time being the time spent by the surface protection sheet piece after the application of the load until 5 cm thereof was peeled off.

Abstract translation: 本发明提供一种表面保护片，其包含在支撑基板上具有小于10μm的厚度的粘合剂层。 表面保护片在恒定的负荷剥离试验中表现出50秒以上的保持时间，包括：将25mm宽的表面保护片压合到通过用酸 - 环氧交联的 丙烯酸漆; 在表面保护片的压接5分钟后，向表面保护片的第一边缘施加100g负荷，剥离角度为90°; 保持时间是在施加负载之后由表面保护片件花费的时间，直到其5cm被剥离。

公开(公告)号：US20130244030A1

公开(公告)日：2013-09-19

申请号：US13827182

申请日：2013-03-14

Applicant: NITTO DENKO CORPORATION

Inventor： Takeshi IGARASHI ,  Toshitaka SUZUKI

IPC: C09J123/22 ,  C09J125/08 ,  C09J7/02

CPC classification number: C09J123/22 ,  C09J7/387 ,  C09J125/08 ,  Y10T428/2878

Abstract: The present invention provides surface protection sheet 10 comprising support substrate 1 and pressure-sensitive adhesive layer 2 provided on support substrate 1. The pressure-sensitive adhesive constituting pressure-sensitive adhesive layer 2 comprises a polyisobutylene as its base polymer and a styrene/isobutylene block copolymer. The styrene/isobutylene block copolymer is contained in an amount larger than zero part by mass, but smaller than or equal to 70 parts by mass relative to 100 parts by mass of the polyisobutylene.

Abstract translation: 本发明提供了表面保护片10，其包括支撑基板1和设置在支撑基板1上的压敏粘合剂层2.构成压敏粘合剂层2的压敏粘合剂包括作为其基础聚合物的聚异丁烯和苯乙烯/异丁烯嵌段 共聚物。 相对于100质量份的聚异丁烯，苯乙烯/异丁烯嵌段共聚物的含量大于0质量份，但小于等于70质量份。