公开(公告)号：US20220213288A1

公开(公告)日：2022-07-07

申请号：US17595091

申请日：2020-05-07

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

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

IPC: C08J9/00 ,  C08J9/28

Abstract: (Co)polymer matrix composites including a porous (co)polymeric network; a multiplicity of thermally-conductive particles, a multiplicity of intumescent particles and optionally a multiplicity of endothermic particles distributed within the (co)polymeric network structure; wherein the thermally-conductive particles, intumescent particles and optional 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 50% over its initial volume when exposed to at least one temperature greater than 135° C. when exposed to at least one temperature greater than 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, thermally-initiated fuses, and fire-stop devices.

公开(公告)号：US20220186030A1

公开(公告)日：2022-06-16

申请号：US17595071

申请日：2020-05-07

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

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

IPC: C08L91/00 ,  C08J9/28 ,  C08J9/00 ,  C08L91/08 ,  C08J9/38 ,  C09K5/14

Abstract: (Co)polymer matrix composites including a porous (co)polymeric network; a nonvolatile diluent, and a multiplicity of thermally-conductive particles distributed within the (co)polymeric network; wherein the thermally-conductive particles are present in a range from 15 to 99 weight percent, based on the total weight of the (co)polymer matrix (including the thermally-conductive particles and the nonvolatile diluent). 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.