Composite material

US12104115B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-12104115-B2
Application numberUS-201917254364-A
CountryUS
Kind codeB2
Filing dateJun 28, 2019
Priority dateJun 29, 2018
Publication dateOct 1, 2024
Grant dateOct 1, 2024

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

The present application provides a composite material and a method for producing the same. The present application can provide a composite material which comprises a metal foam and a polymer component, and has other excellent physical properties such as impact resistance, processability and insulation properties while having excellent thermal conductivity.

First claim

Opening claim text (preview).

What is claimed is: 1. A method of producing a composite material that has a thermal conductivity of 0.4 W/mK or more, the method comprising: forming a porous metal body by sintering a metal structure comprising a metal component; forming a metal oxide having a protrusion form grown on a surface of the porous metal body by contacting the porous metal body with oxygen, wherein an aspect ratio of the protrusion is in a range of 1 to 8, wherein contacting the porous metal body with oxygen is performed under an oxygen concentration of 1 ppm to 10,000 ppm; and then applying a polymer component to the porous metal body. 2. The method according to claim 1 further comprising forming the metal structure using a slurry including the metal component, a dispersant and a binder. 3. The method according to claim 2 , wherein the dispersant is an alcohol. 4. The method according to claim 2 , wherein the binder is an alkylcellulose, a polyalkylene carbonate or a polyvinyl alcohol. 5. The method according to claim 2 , wherein the slurry comprises 1 to 500 parts by weight of the binder relative to 100 parts by weight of the metal component. 6. The method according to claim 2 , wherein the slurry comprises 10 to 2,000 parts by weight of the dispersant relative to 100 parts by weight of the binder. 7. The method according to claim 1 , wherein contacting the porous metal body with oxygen is performed at a temperature in a range of 300° C. to 600° C. 8. The method according to claim 7 further comprising naturally cooling the porous metal body after sintering the metal structure, wherein contacting the porous metal body with oxygen is performed when the temperature is in the range of 300° C. to 600° C. naturally cooling the porous metal body. 9. The method according to claim 1 , further comprising naturally cooling the porous metal body, wherein naturally cooling the porous metal body and contacting the porous metal body with oxygen are performed simultaneously. 10. The method according to claim 9 , wherein contacting the porous metal body with oxygen comprising injecting a gas having an oxygen concentration in a range of about 400 ppm to 700 ppm at an ambient temperature of about 500° C. 11. The method according to claim 1 , wherein sintering the metal structure is performed in a hydrogen/argon atmosphere.

Assignees

Inventors

Classifications

  • Fillings or auxiliary members in containers or in encapsulations for thermal protection or control · CPC title

  • Metallic materials (H10W40/254, H10W40/257, H10W40/255, H10W40/251, H10W40/253 take precedence) · CPC title

  • Organics · CPC title

  • having a heterogeneous or anisotropic structure, e.g. powder or fibres in a matrix, wire mesh or porous structures (H10W40/254, H10W40/251 take precedence) · CPC title

  • Coating · CPC title

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Frequently asked questions

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What does patent US12104115B2 cover?
The present application provides a composite material and a method for producing the same. The present application can provide a composite material which comprises a metal foam and a polymer component, and has other excellent physical properties such as impact resistance, processability and insulation properties while having excellent thermal conductivity.
Who is the assignee on this patent?
Lg Chemical Ltd
What technology area does this patent fall under?
Primary CPC classification B22F3/11. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Oct 01 2024 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).