# US 2001/0025075 A1 · Polymer composition with metal coated carbon flakes > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2001/0025075 A1 - Document ID: US20010025075A1 - Status: Published application - Kind: A1 - Application number: 09/757,499 - Filed: 2001-01-10 - Published: 2001-09-27 - Earliest claimed: 2000-01-11 - Assignees: Cool Options, Inc. - Inventors: Lyle James Smith; Mikhail Sagal; James D. Miller; Kevin A. McCullough - Web page: https://patentgrep.com/patent/US20010025075A1 ## CPC - C09K 19/52: characterised by components which are not liquid crystals, e.g. additives {with special physical aspect: solvents, solid particles} - C08K 9/02: Ingredients treated with inorganic substances - Y10T 428/12181: Composite powder [e.g., coated, etc.] - Y10T 428/2991: Coated - C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE - C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09) - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A thermally conductive and electromagnetic interference and radio frequency reflective polymer composition and a method for creating the same is disclosed. Thermally conductive filler material is coated with a thermally conductive and electromagnetic interference and radio frequency reflective coating material and mixed with a base polymer matrix. The mixture is molded into the desired shape. The electromagnetic interference and radio frequency reflective coating material prevents the absorption and transfer of EMI and RF waves through the filler material thus resulting in an EMI and RF reflective composition. ## Claims ### Claim 1 A high thermally conductive, electromagnetic interference and radio frequency reflective molding composition, comprising: a polymer base matrix; and a thermally conductive filler loaded in said polymer base matrix; and a layer of thermally conductive and electromagnetic interference reflective material coated on said thermally conductive filler. ### Claim 2 (depends on 1) The molding composition of claim 1, wherein said polymer base matrix is a liquid crystal polymer. ### Claim 3 (depends on 1) The molding composition of claim 1, wherein said thermally conductive filler is flake-like in shape. ### Claim 4 (depends on 1) The molding composition of claim 1, wherein said thermally conductive filler is carbon material. ### Claim 5 (depends on 1) The molding composition of claim 1, wherein said layer is metallic. ### Claim 6 (depends on 5) The molding composition of claim 5, wherein said layer material is copper. ### Claim 7 (depends on 5) The molding composition of claim 5, wherein said layer material is aluminum. ### Claim 8 (depends on 5) The molding composition of claim 5, wherein said layer material is nickel. ### Claim 9 A thermally conductive polymer composition comprising a mixture of a polymer and a thermally conductive filler material, said thermally conductive filler being coated with a thermally conductive and electromagnetic interference and radio frequency reflective coating material. ### Claim 10 (depends on 9) The polymer composition of claim 9, wherein said polymer is a liquid crystal polymer. ### Claim 11 (depends on 9) The polymer composition of claim 9, wherein said thermally conductive filler material is carbon flakes. ### Claim 12 (depends on 9) The polymer composition of claim 9, wherein said coating material is a material selected from the group consisting of: copper, aluminum or nickel. ### Claim 13 A method of molding a composition, comprising the steps of: providing a base matrix material; providing a filler material; coating said filler material with a coating material; mixing said filler material with said base matrix into a mixture; and molding said mixture into a net-shape molded article. ### Claim 14 (depends on 13) The method of claim 13, wherein said step of providing a base matrix material is providing a base matrix of polymer material. ### Claim 15 (depends on 13) The method of claim 13, wherein said step of providing a base matrix material is providing a liquid crystal polymer. ### Claim 16 (depends on 13) The method of claim 13, wherein said step of providing a filler material is providing a filler material that is thermally conductive and electromagnetic interference and radio frequency reflective. ### Claim 17 (depends on 13) The method of claim 13, wherein said step of providing a filler material is providing carbon flakes. ### Claim 18 (depends on 13) The method of claim 13, wherein said step of coating is coating with a thermally conductive and electromagnetic interference and radio frequency reflective material selected from the group consisting of: aluminum, copper or nickel. ### Claim 19 A method of molding a thermally conductive electrically insulative composition, comprising the steps of: providing a base polymer matrix material; providing a thermally conductive filler material; coating said filler material with said electromagnetic interference and radio frequency reflective material, producing a coated filler material; mixing said filler material with said base matrix into a mixture; and molding said mixture of said coated filler material and said base matrix. ### Claim 20 (depends on 19) The method of claim 19, wherein said step of providing a base matrix material is providing a liquid crystal polymer. ### Claim 21 (depends on 19) The method of claim 19, wherein said step of providing a thermally conductive filler material is providing a carbon material. ### Claim 22 (depends on 19) The method of claim 19, wherein said step of coating is coating with a material selected from the group consisting of: aluminum, copper or nickel.