公开(公告)号：US20230002646A1

公开(公告)日：2023-01-05

申请号：US17784786

申请日：2020-12-15

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Jie Huang ,  Jing Fang ,  Jeffrey W. McCutcheon ,  Su Zhang ,  Dong Yang

IPC: C09J7/38 ,  B32B1/00 ,  B32B7/12 ,  C23C16/04 ,  C23C16/02 ,  C23C16/50 ,  C23C16/56 ,  C09J9/02 ,  C09J7/28 ,  C09J133/08

Abstract: Electrically conductive masking tapes include an electrically conductive backing and an electrically conductive pressure sensitive adhesive layer. The pressure sensitive adhesive contains an acrylate-based copolymeric matrix, a crosslinker, an electrically conductive filler, and at least one antioxidant. The acrylate-based copolymeric matrix is the reaction product of a polymerizable mixture including at least one first alkyl(meth)acrylate monomer with a homopolymer Tg of less than −50° C., and at least one hydroxyl-functional alkyl(meth)acrylate with a homopolymer Tg of less than −10° C. The electrically conductive tape is capable of being laminated to and cleanly removed from a substrate surface, after being subjected to harsh conditions such as plasma vapor deposition conditions.

公开(公告)号：US11168235B2

公开(公告)日：2021-11-09

申请号：US16497042

申请日：2017-05-09

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Jing Fang ,  Dong Yang ,  Jeffrey W. McCutcheon

IPC: H01B1/22 ,  C09J9/00 ,  C09J9/02 ,  C09J201/02

Abstract: An electrically conductive adhesive layer is described. The adhesive layer includes an adhesive material and pluralities of electrically conductive at least first and second particles. The adhesive layer may have a thickness less than about 35 micrometers and an electrical resistance in the thickness direction of less than about 30 milliohms. A total volume of the pluralities of particles may be greater than 40% of a total volume of the adhesive layer. The first and second particles may have different shapes.

公开(公告)号：US11802221B2

公开(公告)日：2023-10-31

申请号：US17495409

申请日：2021-10-06

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Jing Fang ,  Dong Yang ,  Jeffrey W. McCutcheon

IPC: H01B1/22 ,  C09J9/02 ,  C09J201/02

CPC classification number: C09J9/02 ,  C09J201/02 ,  H01B1/22 ,  C09J2301/302 ,  C09J2301/312 ,  C09J2301/314

Abstract: An electrically conductive adhesive layer includes an adhesive material; a plurality of electrically conductive dendritic first particles dispersed in the adhesive material and having a cumulative 50% particle diameter D50 in a range from about 20 micrometers to about 40 micrometers; and a plurality of electrically conductive substantially planar second particles dispersed in the adhesive material and having a cumulative 50% particle diameter D50 in a range from about 40 micrometers to about 70 micrometers. The adhesive layer has an average thickness in a range from about 15 micrometers to about 35 micrometers, an electrical resistance in a thickness direction of less than about 30 milliohms, and a peel strength of at least 0.1 N/mm from a stainless steel surface after a dwell time of about 20 minutes at 22° C.

公开(公告)号：US20200095479A1

公开(公告)日：2020-03-26

申请号：US16497042

申请日：2017-05-09

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Jing Fang ,  Dong Yang ,  Jeffrey W. McCutcheon

IPC: C09J9/02 ,  C09J201/02

Abstract: An electrically conductive adhesive layer is described. The adhesive layer includes an adhesive material and pluralities of electrically conductive at least first and second particles. The adhesive layer may have a thickness less than about 35 micrometers and an electrical resistance in the thickness direction of less than about 30 milliohms. A total volume of the pluralities of particles may be greater than 40% of a total volume of the adhesive layer. The first and second particles may have different shapes.

公开(公告)号：US12152179B2

公开(公告)日：2024-11-26

申请号：US18472523

申请日：2023-09-22

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Jing Fang ,  Dong Yang ,  Jeffrey W. McCutcheon

IPC: H01B1/22 ,  C09J9/02 ,  C09J201/02

Abstract: An electrically conductive adhesive layer includes an adhesive material; a plurality of electrically conductive first particles dispersed in the adhesive material and having a first shape; and a plurality of electrically conductive second particles dispersed in the adhesive material and having a second shape different from the first shape. A ratio of a total weight of the first particles to a total weight of the second particles is in a range from about 2 to about 10. The adhesive layer has an average thickness in a range from about 5 micrometers to about 35 micrometers. An electrical conductance of the adhesive layer in a thickness, but not in an in-plane, direction is at least 5% greater than a comparative adhesive layer having the same construction except that it does not include the second particles.

公开(公告)号：US20240010882A1

公开(公告)日：2024-01-11

申请号：US18472523

申请日：2023-09-22

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Jing Fang ,  Dong Yang ,  Jeffrey W. McCutcheon

IPC: C09J9/02 ,  C09J201/02 ,  H01B1/22

CPC classification number: C09J9/02 ,  C09J201/02 ,  H01B1/22 ,  C09J2301/302 ,  C09J2301/312 ,  C09J2301/314

Abstract: An electrically conductive adhesive layer includes an adhesive material; a plurality of electrically conductive first particles dispersed in the adhesive material and having a first shape; and a plurality of electrically conductive second particles dispersed in the adhesive material and having a second shape different from the first shape. A ratio of a total weight of the first particles to a total weight of the second particles is in a range from about 2 to about 10. The adhesive layer has an average thickness in a range from about 5 micrometers to about 35 micrometers. An electrical conductance of the adhesive layer in a thickness, but not in an in-plane, direction is at least 5% greater than a comparative adhesive layer having the same construction except that it does not include the second particles.

公开(公告)号：US20220025225A1

公开(公告)日：2022-01-27

申请号：US17495409

申请日：2021-10-06

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Jing Fang ,  Dong Yang ,  Jeffrey W. McCutcheon

IPC: C09J9/02 ,  C09J201/02 ,  H01B1/22

Abstract: An electrically conductive adhesive layer includes an adhesive material; a plurality of electrically conductive dendritic first particles dispersed in the adhesive material and having a cumulative 50% particle diameter D50 in a range from about 20 micrometers to about 40 micrometers; and a plurality of electrically conductive substantially planar second particles dispersed in the adhesive material and having a cumulative 50% particle diameter D50 in a range from about 40 micrometers to about 70 micrometers. The adhesive layer has an average thickness in a range from about 15 micrometers to about 35 micrometers, an electrical resistance in a thickness direction of less than about 30 milliohms, and a peel strength of at least 0.1 N/mm from a stainless steel surface after a dwell time of about 20 minutes at 22° C.