公开(公告)号：US20220217877A1

公开(公告)日：2022-07-07

申请号：US17606697

申请日：2019-05-13

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Bing Huang ,  Su Zhang ,  Xin Zhang ,  Jing Fang ,  Fan Gao

IPC: H05K9/00

Abstract: An electrically conductive multilayer film for providing an electrical path between two conductive surfaces includes a plastic backing layer, an electrically conductive layer disposed on a first side of the plastic backing layer, and a recovery layer disposed on an opposite second side of the plastic backing layer. An average thickness of the multilayer film is less than about 100 microns. A hollow gasket can be formed from the multilayer film by winding or bending the multilayer film into a flexible hollow closed loop. When the multilayer film is wound to form a flexible closed loop having an outside diameter of no more than about 7 mm with the conductive layer forming an outside layer of the loop, a resistance of the closed loop across a diameter of the closed loop remains less than about 2Ω when the loop is compressed across the diameter by at least 20%.

公开(公告)号：US11744055B2

公开(公告)日：2023-08-29

申请号：US17606697

申请日：2019-05-13

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Bing Huang ,  Su Zhang ,  Xin Zhang ,  Jing Fang ,  Fan Gao

IPC: H05K9/00

CPC classification number: H05K9/0015 ,  H05K9/0084

Abstract: An electrically conductive multilayer film for providing an electrical path between two conductive surfaces includes a plastic backing layer, an electrically conductive layer disposed on a first side of the plastic backing layer, and a recovery layer disposed on an opposite second side of the plastic backing layer. An average thickness of the multilayer film is less than about 100 microns. A hollow gasket can be formed from the multilayer film by winding or bending the multilayer film into a flexible hollow closed loop. When the multilayer film is wound to form a flexible closed loop having an outside diameter of no more than about 7 mm with the conductive layer forming an outside layer of the loop, a resistance of the closed loop across a diameter of the closed loop remains less than about 2Ω when the loop is compressed across the diameter by at least 20%.

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.