公开(公告)号：US20240059935A1

公开(公告)日：2024-02-22

申请号：US18269250

申请日：2021-12-17

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Seongwoo Kim ,  Do-Kwang Cho ,  Youhoon Kim

IPC: C09J7/38 ,  C09J7/40 ,  C09J7/30 ,  C09J4/06 ,  C09J133/14

CPC classification number: C09J7/385 ,  C09J7/401 ,  C09J7/30 ,  C09J4/06 ,  C09J133/14 ,  C09J2203/318 ,  C09J2301/416 ,  C09J2301/312

Abstract: The present invention relates to a photocurable adhesive film and a preparation method thereof, and provides an adhesive film having excellent peeling adhesion and creep resistance at both room temperature and high temperature and a low modulus at a low temperature of −20° C. by using an acrylic monomer having a specific structure in a specific content range. Furthermore, since the adhesive film of the present invention may provide folding reliability and stability of a display device, the adhesive film can be usefully applied as an adhesive of a display device, particularly, a foldable display device field.

公开(公告)号：US11059999B2

公开(公告)日：2021-07-13

申请号：US16302825

申请日：2017-05-24

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Seongwoo Kim ,  Yong Seok Seo ,  Do-Kwang Cho ,  You Hoon Kim ,  Andrew Satrijo ,  Ross J. DeVolder

IPC: C08J7/00 ,  C09J7/26 ,  C09J7/25 ,  B32B5/18 ,  B32B17/06 ,  B32B27/06 ,  B32B27/36 ,  C08J9/00 ,  C08J9/32

Abstract: The present invention relates to a double-sided adhesive tape used for applications including the attachment of front glass for mobile devices. A core layer of the double-sided adhesive tape is prepared by adding an acrylic elastomer free of carbon-carbon double bonds while being highly miscible with an acrylic resin to an acrylic monomer(s) and performing curing, and thus can improve the impact resistance of the final double-sided adhesive tape. Also, the core layer may take a form of foam due to the introduced filler such as glass bubbles or organic microspheres, and thus can further contribute to improving the impact resistance of the final double-sided adhesive tape.

公开(公告)号：US20190292411A1

公开(公告)日：2019-09-26

申请号：US16302825

申请日：2017-05-24

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Seongwoo Kim ,  Yong Seok Seo ,  Do-Kwang Cho ,  You Hoon Kim ,  Andrew Satrijo ,  Ross J. DeVolder

IPC: C09J7/26 ,  C08J9/00 ,  C08J9/32 ,  C09J7/25 ,  B32B5/18 ,  B32B27/06 ,  B32B27/36 ,  B32B17/06

Abstract: The present invention relates to a double-sided adhesive tape used for applications including the attachment of front glass for mobile devices. A core layer of the double-sided adhesive tape is prepared by adding an acrylic elastomer free of carbon-carbon double bonds while being highly miscible with an acrylic resin to an acrylic monomer(s) and performing curing, and thus can improve the impact resistance of the final double-sided adhesive tape. Also, the core layer may take a form of foam due to the introduced filler such as glass bubbles or organic microspheres, and thus can further contribute to improving the impact resistance of the final double-sided adhesive tape.