Metal-organic-framework-containing bodies and related methods

Patent metadata

Field	Value
Publication number	US-12479028-B2
Application number	US-202217584379-A
Country	US
Kind code	B2
Filing date	Jan 25, 2022
Priority date	Jan 26, 2021
Publication date	Nov 25, 2025
Grant date	Nov 25, 2025

Abstract

Described are three-dimensional structures that contain metal-organic-framework adsorbent material and that are prepared by additive manufacturing techniques, as well as methods of preparing the structures by additive manufacturing methods.

First claim

The invention claimed is:

1 . A method of additive manufacturing, the method comprising:
obtaining a feedstock comprising at least 70% by weight of a metal organic framework adsorbent based on a total weight of the feedstock, and a solid binder; a) forming a first feedstock layer on a surface, the first feedstock layer comprising the feedstock; b) applying radiation to a portion of the first feedstock layer to form a first layer of a multilayer composite; c) forming a second feedstock layer over at least the first layer of the multilayer composite, the second feedstock layer comprising the feedstock; and d) applying radiation to a portion of the second feedstock layer to form a second layer of the multilayer composite; and repeating steps a)-d) to form a multilayer metal organic framework composite, wherein the multilayer metal organic framework composite comprises a non-denatured metal-organic framework adsorbent, wherein the multilayer metal organic framework composite has a density of at least 0.65 grams metal organic framework adsorbent per cubic centimeter of the multi-layer metal organic framework composite, and wherein the multilayer metal organic framework composite adsorbs and desorbs gas.

2 . The method of claim 1 , wherein the solid binder comprises a thermoplastic polymer.

3 . The method of claim 1 , wherein the feedstock is provided in a form of a powder.

4 . The method of claim 1 , wherein the method does not comprise exposing the metal organic framework adsorbent to a temperature of 300° C. or greater.

5 . The method of claim 1 , wherein the method does not comprise exposing the metal organic framework adsorbent to a temperature of 200° C. or greater.

6 . The method of claim 1 , further comprising processing the multilayer metal organic framework composite into a metal organic framework adsorbent.

7 . The method of claim 3 , wherein the first layer of the multilayer composite and the second layer of the multilayer composite are surrounded by the feedstock.

8 . The method of claim 7 , further comprising removing the feedstock surrounding the first layer of the multilayer composite and the feedstock surrounding the second layer of the multilayer composite.

Assignees

• Entegris Inc

Inventors

• Sturm Edward A
• Byl Oleg
• Leavy Montray
• Guddati Subhash
• Perumal Thines Kumar

Classifications

• B01D2253/204

  Metal organic frameworks (MOF's) · CPC title

• B29C64/165 Primary

  using a combination of solid and fluid materials, e.g. a powder selectively bound by a liquid binder, catalyst, inhibitor or energy absorber · CPC title

• B33Y10/00

  Processes of additive manufacturing · CPC title

• B33Y70/10

  Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials · CPC title

• B01D2258/0216

  from CVD treatment or semi-conductor manufacturing · CPC title