公开(公告)号：US20210040240A1

公开(公告)日：2021-02-11

申请号：US16965688

申请日：2019-01-16

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： William H. Moser ,  Erik M. Townsend ,  Zachary J. Thompson ,  Mary M. Caruso Dailey ,  Michael A. Kropp

IPC: C08F2/50 ,  C08F220/18 ,  C07D239/62 ,  C07D405/12

Abstract: The present disclosure provides a redox initiator system for initiating polymerization comprising an oxidizing agent, a photolabile reducing agent derived from a barbiturate, and a transition metal complex that participates in a redox cycle. On exposure to actinic radiation, such as UV, the photolabile compound photolyzes, releasing the reducing agent and initiating the redox-initiated polymerization.

公开(公告)号：US10758456B2

公开(公告)日：2020-09-01

申请号：US15772164

申请日：2016-10-06

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： William H. Moser ,  Erik M. Townsend ,  Kathleen S. Shafer ,  Michael A. Kropp ,  Ross E. Behling ,  Jason D. Clapper

IPC: C08F4/40 ,  C08F4/44 ,  A61K6/00 ,  A61K6/083 ,  A61K6/30 ,  C08F12/36 ,  C08F222/10 ,  C08F2/48 ,  C08K3/36 ,  A61K6/61 ,  A61K6/887 ,  C08F22/10 ,  C08F4/60 ,  B01J31/18 ,  C08L33/08 ,  C08L33/10

Abstract: Polymerizable compositions comprising a redox initiator system is disclosed. The redox initiator system comprises a photolabile transition metal complex that photolyzes and initiates the redox cycle. Dental compositions comprising dental resins and the photolabile redox initiator system are also described.

公开(公告)号：US20180311114A1

公开(公告)日：2018-11-01

申请号：US15772164

申请日：2016-10-06

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： William H. Moser ,  Erik M. Townsend ,  Kathleen S. Shafer ,  Michael A. Kropp ,  Ross E. Behling ,  Jason D. Clapper

IPC: A61K6/00 ,  C08F4/40 ,  C08F22/10 ,  C08F4/60 ,  A61K6/083

Abstract: Polymerizable compositions comprising a redox initiator system is disclosed. The redox initiator system comprises a photolabile transition metal complex that photolyzes and initiates the redox cycle. Dental compositions comprising dental resins and the photolabile redox initiator system are also described.

公开(公告)号：US20180311113A1

公开(公告)日：2018-11-01

申请号：US15772143

申请日：2016-11-02

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： William H. Moser ,  Erik M. Townsend ,  Michael A. Kropp ,  Ross E. Behling ,  Jason D. Clapper

IPC: A61K6/00 ,  A61K6/083

CPC classification number: A61K6/005 ,  A61K6/0023 ,  A61K6/02 ,  A61K6/083 ,  C08L33/08 ,  C08L33/10

Abstract: Polymerizable dental compositions comprising a redox initiator system is disclosed. The redox initiator system comprises a photolabile transition metal complex that photolyzes and initiates the redox cycle.

公开(公告)号：US20250101274A1

公开(公告)日：2025-03-27

申请号：US18973817

申请日：2024-12-09

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Shantanu R. Ranade ,  Alexander J. Kugel ,  Kai U. Claussen ,  Rachna Khurana ,  Dean M. Moren ,  William H. Sikorski, JR. ,  Erik M. Townsend

IPC: C09J7/50 ,  C08K3/10 ,  C08K5/14 ,  C08K5/1535 ,  C09D183/02 ,  C09J5/04 ,  C09J7/20 ,  C09J7/30 ,  C09J7/35

Abstract: Curable adhesive films, primers for adhesion of curable adhesive films, and adhesive systems comprising adhesive films and primers are provided. In some embodiments, an adhesive system comprises: I) a curable adhesive free-standing film comprising a blend of a) a first film-forming polymer or oligomer; b) a first species comprising first unsaturated free-radically polymerizable groups, which may be a) or a species other than a); and c) a first transition metal cation; and II) a primer for adhesion of a curable adhesive free-standing film to a first substrate comprising an oxidizing agent. In some embodiments, an adhesive system comprises: I) a curable adhesive free-standing film comprising an outer surface bearing embossed air bleed channels capable of aiding in escape of air during application of the outer surface to a primed substrate; and II) a primer comprising components that initiate cure of the curable adhesive free-standing film.

公开(公告)号：US12187929B2

公开(公告)日：2025-01-07

申请号：US15733471

申请日：2019-02-08

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Shantanu R. Ranade ,  Alexander J. Kugel ,  Kai U. Claussen ,  Rachna Khurana ,  Dean M. Moren ,  William H. Sikorski, Jr. ,  Erik M. Townsend

IPC: C09J7/38 ,  C09J5/04 ,  C09J7/10 ,  C09J11/04

Abstract: Curable adhesive free-standing films and adhesive systems comprising such films are provided. In some embodiments, a curable adhesive free-standing film comprises a blend of: a) a first film-forming polymer or oligomer; b) a first species comprising first unsaturated free-radically polymerizable groups, which may be a) or a species other than a); c) a first transition metal cation; d) a reducing agent; and no oxidizing agent. In some embodiments, an adhesive system comprises: I) a first curable adhesive free-standing film as described preceding; and II) a second curable adhesive free-standing film comprising a blend of: e) a second film-forming polymer or oligomer; f) a second species comprising second unsaturated free-radically polymerizable groups, which may be e) or may be a species other than e); and g) an oxidizing agent. In some embodiments, the curable adhesive free-standing films may be pressure sensitive adhesives prior to cure. Methods of use are provided.

公开(公告)号：US20250001734A1

公开(公告)日：2025-01-02

申请号：US18820612

申请日：2024-08-30

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Ralph R. Roberts ,  Claire Hartmann-Thompson ,  Gregory P. Sorenson ,  Erik M. Townsend ,  Mario A. Perez

IPC: B32B15/092 ,  B32B7/12 ,  B32B37/12 ,  B32B37/16

Abstract: Adhesive compositions, articles, and methods are described. The electronic may comprise: i) a conductive metallic substrate; ii) an insulating resin layer; and iii) and an adhesive layer disposed between the substrate and insulating resin layer. The adhesive layer comprises at least 50 wt. % of polyimide resin comprising maleimide moieties; and at least 0.25 wt. % of an amine compound. In some embodiments, the conductive metallic substrate comprises copper, such as copper traces.

公开(公告)号：US20240002586A1

公开(公告)日：2024-01-04

申请号：US18039775

申请日：2021-11-29

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Binhong Lin ,  Mario A. Perez ,  Phillip D. Hustad ,  Erik M. Townsend

IPC: C08G61/08 ,  C08K7/28 ,  C08J9/32 ,  C08J9/00

CPC classification number: C08G61/08 ,  C08K7/28 ,  C08J9/32 ,  C08J9/0066 ,  C08G2261/3324 ,  C08G2261/135 ,  C08G2261/1526 ,  C08G2261/418 ,  C08J2365/00 ,  C08J2203/22 ,  C08G2261/592

Abstract: A curable composition comprises an addition polymerizable cycloolefin comprising a ring containing a single car-bon-carbon double bond; an addition polymerization catalyst; and at least one of hollow glass microspheres, expanded polymeric mi-crospheres, or expandable polymeric microspheres. The curable composition may be 1-part or 2-part. Methods of curing the curable composition are disclosed. Cured compositions, and articles including the same are also disclosed.

公开(公告)号：US20230014501A1

公开(公告)日：2023-01-19

申请号：US17777670

申请日：2020-12-11

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Erik M. Townsend ,  Kelly A. Volp ,  Mario A. Perez ,  Binhong Lin

IPC: C09J7/20 ,  C09J4/06 ,  C09J7/38 ,  C09J133/10

Abstract: Adhesive composition and articles are described comprising a carrier substrate (e.g. release liner or backing) and an adhesive composition disposed on the carrier substrate. The adhesive composition comprises at least 20 wt.% of a polymer; unpolymerized cyclic olefin; and a (e.g. latent) ring opening metathesis polymerization catalyst or precatalyst thereof. The polymer may have a Tg less than 25° C. and/or may be an acrylic polymer. Also described is a method of bonding.

公开(公告)号：US11370940B2

公开(公告)日：2022-06-28

申请号：US16615477

申请日：2018-05-16

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Erik M. Townsend ,  Shantanu R. Ranade ,  William H. Moser ,  Kathleen S. Shafer ,  Michael A. Kropp ,  Jayshree Seth ,  Ross E. Behling

IPC: C09J4/00 ,  C09J7/40 ,  C08F4/40 ,  C08F220/18 ,  C08K5/15 ,  C08K5/1565

Abstract: An adhesive article comprising first and second tacky latent adhesive layers disposed on respective first and second opposed major surfaces of a substrate. Each of the first and second tacky latent adhesive layers independently comprises at least one polymerizable component, and a redox initiator system comprising a transition metal complex that participates in a redox cycle, an oxidizing agent, and a blocked reducing agent represented by the formula ((I). Each of R1 and R2 are independently H, an alkyl, an aryl, or RPhoto5 with the proviso that at least one of R1 and R2 is RPhoto. RPhoto represents a photoremovable group. Each of R3 and R4 independently represents H, an alkyl group, or an aryl group comprising a monovalent ester, ether, urethane, or carbonate group. Methods of making and using the adhesive articles are also disclosed.