公开(公告)号：US20240166923A1

公开(公告)日：2024-05-23

申请号：US18550697

申请日：2021-04-08

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Lijing Zhang ,  Shijing Cheng ,  Lianzhou Chen ,  You Dao Ling ,  Lin Yang

IPC: C09J11/04 ,  C09J7/30 ,  C09J11/08 ,  C09J133/12

CPC classification number: C09J11/04 ,  C09J7/30 ,  C09J11/08 ,  C09J133/12 ,  C09J2433/00

Abstract: Provided is a UV curable adhesive composition, an adhesive tape comprising the UV curable adhesive composition, an adhesive film formed by UV curing of the adhesive composition, and a corresponding bonding member. The UV curable adhesive composition and the adhesive tape comprising the UV curable adhesive composition have a hybrid system of a (meth) acrylate component, epoxy resin, core-shell rubber particles, cationic photoinitiator and an amphoteric inorganic filler.

公开(公告)号：US20210363276A1

公开(公告)日：2021-11-25

申请号：US17250157

申请日：2019-06-12

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Lijing Zhang ,  Weigang Lin

IPC: C08F2/50 ,  C08F220/14 ,  C08F220/06 ,  C08F220/18 ,  C08F220/20 ,  C08F220/32 ,  C08F220/36 ,  C08F220/56 ,  C08F226/06 ,  C08K5/37 ,  C08G59/24 ,  C08L23/08 ,  C09J7/38

Abstract: The present disclosure relates to a UV-curable composition and adhesive film, adhesive tape and bonding member containing the same. Said UV-curable composition is a UV-curable composition catalyzable by photobase. Said UV-curable composition comprises (1) acrylic polymer and/or ethylene-vinyl acetate copolymer; (2) curable components, comprising polyfunctional mercaptan and polyfunctional epoxy resin; and a (3) photobase generator. The composition of the present disclosure can be coated into an adhesive tape or adhesive film; such adhesive tape or film possesses initial adhesion before UV curing is carried out and can have the strength of a semi-structural adhesive or a structural adhesive after UV curing is carried out.

公开(公告)号：US20220340793A1

公开(公告)日：2022-10-27

申请号：US17597962

申请日：2020-08-05

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Lijing Zhang ,  Shijing Cheng ,  Eric George Larson ,  Wei Cui ,  Lin Yang

IPC: C09J163/00 ,  C09J133/08 ,  C09J7/40 ,  C09J11/08 ,  C08K9/10

Abstract: Disclosed are a UV curable adhesive composition, an adhesive tape comprising the UV curable adhesive composition, an adhesive film formed by UV curing of the adhesive composition, and a corresponding bonding member. The UV curable adhesive composition and the adhesive tape comprising the UV curable adhesive composition have a hybrid system of reactive polyacrylate/epoxy resin/core-shell rubber particles/hydroxy-containing compound, wherein a cationic photoinitiator is used to initiate curing of the epoxy a resin.

公开(公告)号：US20230052211A1

公开(公告)日：2023-02-16

申请号：US17757635

申请日：2021-01-04

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Lijing Zhang ,  Shijing Cheng

IPC: C09J7/10 ,  C09J7/38

Abstract: The present invention provides a UV-curable pressure-sensitive adhesive composition, comprising: 81 to 97.5 parts of (meth)acrylate polymer having a carboxyl functional group by weight, the amount of the carboxyl functional group in the (meth)acrylate polymer having the carboxyl functional group being equal to or greater than 40 mmol/100 g; 2.5 to 19 parts of an epoxy resin by weight; 0.3 to 6 parts of a polyol by weight; and 0.05 to 5 parts of a photoinitiator by weight. The UV-curable pressure-sensitive adhesive composition has good anti-repulsion. The present invention further provides a UV-curable adhesive tape comprising the UV-curable pressure-sensitive adhesive composition.

公开(公告)号：US20230034083A1

公开(公告)日：2023-02-02

申请号：US17757639

申请日：2021-01-04

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Lijing Zhang ,  Fan Gao ,  Guoliang Zhang

IPC: C09J7/40 ,  C09J7/38 ,  C09J175/08 ,  C09J11/08 ,  C09J7/10 ,  C08L75/08

Abstract: The present invention relates to a novel polyurethane-based UV-curable composition, comprising a low-crystallinity polyurethane polymer, a multifunctional thiol compound, a multifunctional epoxy resin compound, a photobase generator, and an optional photosensitizer. Adhesive films, adhesive tapes, and bonded members with excellent initial bonding performance, die cutting performance, overlap strength and drop-resistance performance may be obtained by using the polyurethane-based UV-curable composition provided by the present invention.

公开(公告)号：US11479621B2

公开(公告)日：2022-10-25

申请号：US17250157

申请日：2019-06-12

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Lijing Zhang ,  Weigang Lin

IPC: C08F2/46 ,  C08F2/50 ,  C08G61/04 ,  C09J7/38 ,  C08F220/18 ,  C08F220/32 ,  C08F220/06 ,  C08F220/14 ,  C08F220/20 ,  C08F220/36 ,  C08F220/56 ,  C08F226/06 ,  C08G59/24 ,  C08K5/37 ,  C08L23/08

Abstract: The present disclosure relates to a UV-curable composition and adhesive film, adhesive tape and bonding member containing the same. Said UV-curable composition is a UV-curable composition catalyzable by photobase. Said UV-curable composition comprises (1) acrylic polymer and/or ethylene-vinyl acetate copolymer; (2) curable components, comprising polyfunctional mercaptan and polyfunctional epoxy resin; and a (3) photobase generator. The composition of the present disclosure can be coated into an adhesive tape or adhesive film; such adhesive tape or film possesses initial adhesion before UV curing is carried out and can have the strength of a semi-structural adhesive or a structural adhesive after UV curing is carried out.