公开(公告)号：US20230339194A1

公开(公告)日：2023-10-26

申请号：US17793109

申请日：2021-02-18

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Jacob P. Podkaminer ,  Jens Eichler ,  Peter J. Schneider ,  Sebastian Goris ,  Victor Ho ,  Joseph A. Dunbar ,  Matthew T. Johnson ,  Jay B. Preston ,  Matthew H. Frey ,  Eric L. Askeland ,  Steven D. Solomonson ,  Sung W. Moon ,  Michael P. Wald

IPC: B29C70/14 ,  B29C70/88 ,  B29C70/54

CPC classification number: B29C70/14 ,  B29C70/88 ,  B29C70/545 ,  B29L2007/008

Abstract: The present disclosure provides a thermally conductive article including a pad having first and second opposed major surfaces and a thickness therebetween. The thickness is formed of entangled thermally conductive fibers and at least a portion of the entangled thermally conductive fibers have at least one terminal end at the first opposed major surface, the opposed second major surface, or both. The pad is at least partially impregnated with a polymer. Another thermally conductive article is provided including a) a pad having first and second opposed major surfaces and a thickness therebetween; b) a first thermally conductive skin layer; and c) a second thermally conductive skin layer. The thickness of the pad is formed of aligned thermally conductive fibers, and at least a portion of the thermally conductive fibers have a terminal end at the first opposed major surface and the opposed second major surface. The first and second thermally conductive skin layers each include a polymeric matrix at least partially embedded in the terminal end of at least a portion of the thermally conductive fibers at the first and second major surfaces of the pad, respectively. Methods of making the thermally conductive articles are also provided.

公开(公告)号：US20220259465A1

公开(公告)日：2022-08-18

申请号：US17597737

申请日：2020-08-06

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Alexander J. Kugel ,  Mario A. Perez ,  Sebastian Goris ,  Matthew H. Frey ,  Ross E. Behling ,  Mark E. Napierala ,  Thomas Q. Chastek ,  Jacob D. Young ,  Shaun M. West ,  Tomoaki Uchiya

IPC: C09J9/00 ,  C09J5/06 ,  C09J11/04 ,  C09J133/14 ,  C09J133/06 ,  C09J153/00 ,  C09K5/14 ,  B33Y10/00 ,  B33Y40/10 ,  B33Y70/00 ,  B29C64/118 ,  B29C64/314 ,  D01F8/10 ,  D01F1/10

Abstract: A core-sheath filament having a) a core that is a thermally conductive pressure-sensitive adhesive particles and b) a non-tacky, thermoplastic sheath is provided. The thermally conductive pressure-sensitive adhesive in the core includes a (meth)acrylate-based polymeric material and thermally conductive particles. Additionally, methods of making the core-sheath filament and methods of using the core-sheath filament to print a thermally conductive pressure-sensitive adhesive are described.

公开(公告)号：US20220213372A1

公开(公告)日：2022-07-07

申请号：US17595092

申请日：2020-05-06

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Paul T. Hines ,  Derek J. Dehn ,  Sebastian Goris ,  Clinton P. Waller, Jr. ,  Mario A. Perez ,  Bharat R. Acharya ,  Ronald W. Ausen

IPC: C09K5/18 ,  C09K5/14 ,  C08K3/26 ,  C08K3/38 ,  C08K3/30 ,  C08K3/04 ,  C08J9/00 ,  C08J9/28

Abstract: (Co)polymer matrix composites including a porous (co)polymeric network; a multiplicity of thermally-conductive particles, and a multiplicity of endothermic particles distributed within the (co)polymeric network structure; wherein the thermally-conductive particles and endothermic particles are present in a range from 15 to 99 weight percent, based on the total weight of the particles and the (co)polymer (excluding the solvent). Optionally, the (co)polymer matrix composite volumetrically expands by at least 10% of its initial volume when exposed to a temperature of at least 135° C. Methods of making and using the (co)polymer matrix composites are also disclosed. The (co)polymer matrix composites are useful, for example, as heat dissipating or heat absorbing articles, as fillers, thermal interface materials, and thermal management materials, for example, in electronic devices, more particularly mobile handheld electronic devices, power supplies, and batteries.

公开(公告)号：US12115737B2

公开(公告)日：2024-10-15

申请号：US17793109

申请日：2021-02-18

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Jacob P. Podkaminer ,  Jens Eichler ,  Peter J. Schneider ,  Sebastian Goris ,  Victor Ho ,  Joseph A. Dunbar ,  Matthew T. Johnson ,  Matthew H. Frey

IPC: H01L23/373 ,  B29C70/14 ,  B29C70/54 ,  B29C70/88 ,  B29L7/00

CPC classification number: B29C70/14 ,  B29C70/545 ,  B29C70/88 ,  B29K2995/0013 ,  B29K2995/0046 ,  B29K2995/0051 ,  B29L2007/008 ,  H01L23/3733 ,  H01L23/3737

Abstract: The present disclosure provides a thermally conductive article including a pad having first and second opposed major surfaces and a thickness therebetween. The thickness is formed of entangled thermally conductive fibers and at least a portion of the entangled thermally conductive fibers have at least one terminal end at the first opposed major surface, the opposed second major surface, or both. The pad is at least partially impregnated with a polymer. Another thermally conductive article is provided including a) a pad having first and second opposed major surfaces and a thickness therebetween; b) a first thermally conductive skin layer; and c) a second thermally conductive skin layer. The thickness of the pad is formed of aligned thermally conductive fibers, and at least a portion of the thermally conductive fibers have a terminal end at the first opposed major surface and the opposed second major surface. The first and second thermally conductive skin layers each include a polymeric matrix at least partially embedded in the terminal end of at least a portion of the thermally conductive fibers at the first and second major surfaces of the pad, respectively. Methods of making the thermally conductive articles are also provided.

公开(公告)号：US20220259398A1

公开(公告)日：2022-08-18

申请号：US17595094

申请日：2020-05-09

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Sebastian Goris ,  Derek J. Dehn ,  Paul T. Hines ,  Michael S. Graff, JR. ,  Mario A. Perez ,  Charles L. Bruzzone ,  Bharat R. Acharya ,  Clinton P. Waller

IPC: C08J9/28 ,  C08K3/38 ,  C08K3/08 ,  C08J3/21 ,  C08J9/00 ,  C09K5/14 ,  H01F1/053

Abstract: (Co)polymer matrix composites including a porous (co)polymeric network; a multiplicity of thermally-conductive particles and a multiplicity of magnetic particles distributed within the (co)polymeric network structure; wherein the thermally-conductive particles, magnetic particles and optional magnetic particles are present in a range from 15 to 99 weight percent, based on the total weight of the particles and the (co)polymer (excluding the solvent). Methods of making and using the (co)polymer matrix composites are also disclosed. The (co)polymer matrix composites are useful, for example, as heat dissipating or heat absorbing thermal interface materials that also provide magnetic properties useful, for example, in flux field directional materials or shielding from electromagnetic interference.

公开(公告)号：US20250001706A1

公开(公告)日：2025-01-02

申请号：US18830974

申请日：2024-09-11

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Jens Eichler ,  Peter J. Schneider ,  Sebastian Goris ,  Jay B. Preston ,  Eric L. Askeland ,  Steven D. Solomonson ,  Sung W. Moon ,  Michael P. Wald

IPC: B29C70/14 ,  B29C70/54 ,  B29C70/88 ,  B29L7/00 ,  H01L23/373

Abstract: The present disclosure provides a thermally conductive article including a pad having first and second opposed major surfaces and a thickness therebetween. The thickness is formed of entangled thermally conductive fibers and at least a portion of the entangled thermally conductive fibers have at least one terminal end at the first opposed major surface, the opposed second major surface, or both. The pad is at least partially impregnated with a polymer. Another thermally conductive article is provided including a) a pad having first and second opposed major surfaces and a thickness therebetween; b) a first thermally conductive skin layer; and c) a second thermally conductive skin layer. The thickness of the pad is formed of aligned thermally conductive fibers, and at least a portion of the thermally conductive fibers have a terminal end at the first opposed major surface and the opposed second major surface. The first and second thermally conductive skin layers each include a polymeric matrix at least partially embedded in the terminal end of at least a portion of the thermally conductive fibers at the first and second major surfaces of the pad, respectively. Methods of making the thermally conductive articles are also provided.

公开(公告)号：US20230357973A1

公开(公告)日：2023-11-09

申请号：US17444200

申请日：2020-02-18

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Ronald W. Ausen ,  William J. Kopecky ,  Sebastian Goris

IPC: D04H3/16 ,  B29C48/00 ,  B29C48/05 ,  B29C48/345

CPC classification number: D04H3/163 ,  B29C48/0021 ,  B29C48/05 ,  B29C48/345 ,  B29L2028/00

Abstract: Netting (100) comprising an array of polymeric strands (101, 102), wherein the polymeric strands (101, 102) are periodically joined together at bond regions (105) throughout the array with spaces (103, 109) between adjacent strands, wherein at least a plurality (i.e., at least two) of the strands are hollow polymeric strands (i.e., a hollow core (106) with a sheath (107) surrounding the hollow core), and wherein at least 50 percent by number of the strands do not substantially cross over each other. In some embodiments, the core comprises fluid. Embodiments of nettings described herein are useful for example, for thermal transport in thermal interface articles used to control the temperature of and/or dissipate heat for electronic components and batteries or mechanical devices.

公开(公告)号：US11731408B2

公开(公告)日：2023-08-22

申请号：US17639708

申请日：2020-09-18

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Mario A. Perez ,  Mary E. Johansen ,  Sebastian Goris ,  Lesbia E. Giron ,  Rajdeep S. Kalgutkar ,  Ta-Hua Yu ,  Paul T. Hines ,  Stephen A. Johnson

IPC: B32B27/08 ,  B32B7/022 ,  B32B27/30 ,  B32B27/32 ,  B32B27/34 ,  B32B27/36

CPC classification number: B32B27/08 ,  B32B7/022 ,  B32B27/308 ,  B32B27/32 ,  B32B27/34 ,  B32B27/36 ,  B32B2250/24 ,  B32B2250/40 ,  B32B2270/00 ,  B32B2274/00 ,  B32B2307/412 ,  B32B2307/414 ,  B32B2307/51 ,  B32B2307/516 ,  B32B2307/518 ,  B32B2307/54 ,  B32B2307/5825 ,  B32B2307/732 ,  B32B2535/00

Abstract: A multilayer film comprises first, second, and third layers. The first layer comprises at least one aromatic polyester, and has a loss modulus at 1 hertz and 25° C. of at least 70 megapascals. The second layer is thermoplastic and has a loss modulus at 1 hertz and 25° C. of less than or equal to 60 megapascals and comprises a thermoplastic elastomer and a polyamide. The third layer contacts the second layer opposite the first layer and has a loss modulus at 1 hertz and 25° C. of at least 70 megapascals. The second layer is sandwiched between the first and third layers. A method of making the multilayer film by coextrusion is also disclosed.

公开(公告)号：US20230055151A1

公开(公告)日：2023-02-23

申请号：US17792815

申请日：2021-01-14

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Samuel J. Carpenter ,  Aaron K. Nienaber ,  Joseph B. Eckel ,  Ronald D. Jesme ,  Jacob P. Podkaminer ,  Victor Ho ,  Sebastian Goris ,  Matthew T. Johnson ,  Michael S. Graff ,  Steven H. Kong

IPC: H01L23/373 ,  H01L23/42

Abstract: A thermal interface layer includes pluralities of first and second particles dispersed in a polymeric binder at a total loading V in a range of about 40 volume percent to about 70 volume percent. The first and second particles have different compositions. The first particles include one or more of iron or nickel. The second particles include one or more of aluminum, magnesium, silicon, copper, or zinc. The thermal interface layer has a thermal conductivity in a thickness direction of the thermal interface layer in units of W/mK of at least K=5.1−0.17 V+0.002 V2.

公开(公告)号：US20220347982A1

公开(公告)日：2022-11-03

申请号：US17639708

申请日：2020-09-18

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Mario A. Perez ,  Mary E. Johansen ,  Sebastian Goris ,  Lesbia E. Giron ,  Rajdeep S. Kalgutkar ,  Ta-Hua Yu ,  Paul T. Hines ,  Stephen A. Johnson

IPC: B32B27/08 ,  B32B27/36 ,  B32B27/34 ,  B32B27/30 ,  B32B27/32 ,  B32B7/022

Abstract: A multilayer film comprises first, second, and third layers. The first layer comprises at least one aromatic polyester, and has a loss modulus at 1 hertz and 25° C. of at least 70 megapascals. The second layer is thermoplastic and has a loss modulus at 1 hertz and 25° C. of less than or equal to 60 megapascals and comprises a thermoplastic elastomer and a polyamide. The third layer contacts the second layer opposite the first layer and has a loss modulus at 1 hertz and 25° C. of at least 70 megapascals. The second layer is sandwiched between the first and third layers. A method of making the multilayer film by coextrusion is also disclosed.