公开(公告)号：US10438831B2

公开(公告)日：2019-10-08

申请号：US15318383

申请日：2014-06-18

Applicant: LINTEC CORPORATION

Inventor： Naoki Taya ,  Yuki Nito ,  Yusuke Miyatake

IPC: H01L21/683 ,  B32B27/30 ,  B32B27/32 ,  B32B7/12 ,  B32B27/06 ,  C08L23/08 ,  C09J7/29

Abstract: A base film for dicing sheets that is used in a dicing sheet comprising the base film and a pressure sensitive adhesive layer laminated on one surface of the base film. The base film comprises at least a first resin layer that is in contact with the pressure sensitive adhesive layer of the dicing sheet and a second resin layer that comes into contact with the first resin layer when the base film for dicing sheets is wound up. The second resin layer has a crystallinity of 28% to 45%. The ratio of a tensile elastic modulus of the first resin layer to a tensile elastic modulus of the second resin layer is 1.2 to 3.0. The ratio of a thickness of the first resin layer to a thickness of the base film for dicing sheets is 25% to 80%.

公开(公告)号：US20150086782A1

公开(公告)日：2015-03-26

申请号：US14389110

申请日：2013-03-28

Applicant: LINTEC CORPORATION

Inventor： Takamasa Kase ,  Atsushi Tezuna ,  Yoichi Takahashi ,  Yusuke Miyatake

IPC: C09J133/26 ,  C08K5/3475 ,  C09J7/02 ,  C09J133/08

CPC classification number: C09J133/26 ,  B60B7/02 ,  C08G18/6254 ,  C08G18/6266 ,  C08G18/8029 ,  C08G2170/40 ,  C08K5/132 ,  C08K5/29 ,  C08K5/3412 ,  C08K5/3475 ,  C08K5/3492 ,  C09J7/385 ,  C09J133/066 ,  C09J133/08 ,  C09J175/04 ,  C09J2205/102 ,  C09J2205/31 ,  Y10T428/2887 ,  Y10T428/2891 ,  C08F2220/1858 ,  C08F2220/1825 ,  C08F2220/1808 ,  C08F218/08 ,  C08F220/06 ,  C08F220/20

Abstract: The present invention provides an automotive wheel protection pressure-sensitive adhesive film comprising a base layer and a pressure-sensitive adhesive layer, the pressure-sensitive adhesive layer being formed of an acrylic-based pressure-sensitive adhesive that includes at least a (meth)acrylic-based polymer, a crosslinking agent, and a UV absorber, the (meth)acrylic-based polymer including a repeating unit derived from a monomer that includes a crosslinkable functional group, and a repeating unit derived from a C1-14 alkyl ester of (meth)acrylic acid. This automotive wheel protection pressure-sensitive adhesive film exhibits sufficient adhesion when transporting or displaying an automobile, and can be easily removed even after being exposed to an outdoor environment, and rarely allows an adhesive residue to remain.

Abstract translation: 本发明提供了一种包括基层和压敏粘合剂层的汽车轮保护压敏粘合剂膜，所述压敏粘合剂层由至少包含（甲基）丙烯酸系粘合剂的丙烯酸类压敏粘合剂形成， 丙烯酸类聚合物，交联剂和紫外线吸收剂，所述（甲基）丙烯酸类聚合物包含衍生自包含交联性官能团的单体的重复单元和衍生自C 14-14烷基酯的重复单元 （甲基）丙烯酸。 这种汽车轮胎保护压敏粘合剂膜在运输或显示汽车时表现出足够的粘附性，并且即使在暴露于室外环境之后也可以容易地去除，并且很少允许残留粘合剂残留物。