Porous sintered metal bodies and methods of preparing porous sintered metal bodies

US2024342984A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2024342984-A1
Application numberUS-202418607286-A
CountryUS
Kind codeA1
Filing dateMar 15, 2024
Priority dateJan 16, 2020
Publication dateOct 17, 2024
Grant date

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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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Abstract

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Described are porous sintered metal bodies and methods of making porous sintered metal bodies by additive manufacturing methods.

First claim

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1 - 14 . (canceled) 15 . A feedstock composition comprising: from 50 percent to 80 percent by volume curable liquid polymeric binder, and from 20 percent to 50 percent by volume metal particles having a relative apparent density in a range from 5 percent to 35 percent of a theoretical density of the particles, based on total volume of the feedstock composition. 16 . A feedstock composition comprising: solid pore-forming polymer particles, and from 20 percent to 50 percent by volume metal particles having a relative apparent density in a range from 5 percent to 35 percent of a theoretical density of the particles, based on total volume of the feedstock composition. 17 . A porous sintered metal body formed by an additive manufacturing method and comprising sintered metal particles and having a porosity in a range from 50 percent to 80 percent. 18 . The porous sintered metal body of claim 17 , wherein the metal particles are dendritic particles. 19 . The porous sintered metal body of claim 17 , wherein the metal particles are fibrous particles. 20 . The porous sintered metal body of claim 17 having a multi-layer structure that is visible using an optical microscope. 21 . The feedstock composition of claim 15 , wherein the metal particles have an apparent density below 2.0 grams per cubic centimeter. 22 . The feedstock composition of claim 15 , wherein the feedstock comprises at least 95 weight percent metal particles. 23 . The feedstock composition of claim 16 , wherein the metal particles have an apparent density below 2.0 grams per cubic centimeter. 24 . The feedstock composition of claim 16 , wherein the feedstock comprises at least 95 weight percent metal particles. 25 . The feedstock composition of claim 16 , wherein the solid pore-forming polymer particles have an average size less of less than 100 μm. 26 . The porous sintered metal body of claim 17 , wherein the porous sintered metal body is a three-dimensional non-tubular filter membrane. 27 . The porous sintered metal body of claim 17 , wherein the porous sintered metal body is an annular filter membrane having a shape comprising a three-dimensional tube. 28 . The porous sintered metal body of claim 28 , wherein the three-dimensional tube has a circular cross-section when viewed in a direction of an axis of the tube. 29 . The porous sintered metal body of claim 28 , wherein the three-dimensional tube has a non-circular cross-section when viewed in a direction of an axis of the tube.

Assignees

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Classifications

  • Flat membranes · CPC title

  • Metals · CPC title

  • by additive layer techniques, e.g. selective laser sintering [SLS], selective laser melting [SLM] or 3D printing · CPC title

  • by sintering · CPC title

  • using laser beams; using electron beams [EB] · CPC title

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What does patent US2024342984A1 cover?
Described are porous sintered metal bodies and methods of making porous sintered metal bodies by additive manufacturing methods.
Who is the assignee on this patent?
Entegris Inc
What technology area does this patent fall under?
Primary CPC classification B29C64/153. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Thu Oct 17 2024 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).